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Leptó tau - Viquipèdia, l'enciclopèdia lliure

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href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&amp;utm_medium=sidebar&amp;utm_campaign=C13_ca.wikipedia.org&amp;uselang=ca" class=""><span>Donatius</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Especial:Crea_compte&amp;returnto=Lept%C3%B3+tau" title="Us animem a crear un compte i iniciar una sessió, encara que no és obligatori" class=""><span>Crea un compte</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Especial:Registre_i_entrada&amp;returnto=Lept%C3%B3+tau" title="Us animem a registrar-vos, però no és obligatori [o]" accesskey="o" class=""><span>Inicia la sessió</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right 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mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pàgines per a editors no registrats <a href="/wiki/Ajuda:Introducci%C3%B3" aria-label="Vegeu més informació sobre l&#039;edició"><span>més informació</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Especial:Contribucions_pr%C3%B2pies" title="Una llista de les modificacions fetes des d&#039;aquesta adreça IP [y]" accesskey="y"><span>Contribucions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Especial:Discussi%C3%B3_personal" title="Discussió sobre les edicions per aquesta adreça ip. [n]" accesskey="n"><span>Discussió per aquest IP</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Lloc"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Contingut" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Contingut</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">amaga</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inici</div> </a> </li> <li id="toc-Referències" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referències"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Referències</span> </div> </a> <ul id="toc-Referències-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Enllaços_externs" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Enllaços_externs"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Enllaços externs</span> </div> </a> <ul id="toc-Enllaços_externs-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contingut" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Commuta la taula de continguts." > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Commuta la taula de continguts.</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Leptó tau</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Vés a un article en una altra llengua. Disponible en 58 llengües" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-58" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">58 llengües</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Tau_(deeltjie)" title="Tau (deeltjie) - afrikaans" lang="af" hreflang="af" data-title="Tau (deeltjie)" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AA%D8%A7%D9%88%D9%88%D9%86" title="تاوون - àrab" lang="ar" hreflang="ar" data-title="تاوون" data-language-autonym="العربية" data-language-local-name="àrab" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A2%D0%B0%D1%83-%D0%BB%D0%B5%D0%BF%D1%82%D0%BE%D0%BD" title="Тау-лептон - belarús" lang="be" hreflang="be" data-title="Тау-лептон" data-language-autonym="Беларуская" data-language-local-name="belarús" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A2%D0%B0%D0%BE%D0%BD" title="Таон - búlgar" lang="bg" hreflang="bg" data-title="Таон" data-language-autonym="Български" data-language-local-name="búlgar" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Tauon" title="Tauon - bretó" lang="br" hreflang="br" data-title="Tauon" data-language-autonym="Brezhoneg" data-language-local-name="bretó" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Tau-%C4%8Destica" title="Tau-čestica - bosnià" lang="bs" hreflang="bs" data-title="Tau-čestica" data-language-autonym="Bosanski" data-language-local-name="bosnià" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-co mw-list-item"><a href="https://co.wikipedia.org/wiki/Tauonu" title="Tauonu - cors" lang="co" hreflang="co" data-title="Tauonu" data-language-autonym="Corsu" data-language-local-name="cors" class="interlanguage-link-target"><span>Corsu</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Tauon" title="Tauon - txec" lang="cs" hreflang="cs" data-title="Tauon" data-language-autonym="Čeština" data-language-local-name="txec" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Tauon" title="Tauon - danès" lang="da" hreflang="da" data-title="Tauon" data-language-autonym="Dansk" data-language-local-name="danès" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Tauon" title="Tauon - alemany" lang="de" hreflang="de" data-title="Tauon" data-language-autonym="Deutsch" data-language-local-name="alemany" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A4%CE%B1%CF%85_%CE%BB%CE%B5%CF%80%CF%84%CF%8C%CE%BD%CE%B9%CE%BF" title="Ταυ λεπτόνιο - grec" lang="el" hreflang="el" data-title="Ταυ λεπτόνιο" data-language-autonym="Ελληνικά" data-language-local-name="grec" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Tau_(particle)" title="Tau (particle) - anglès" lang="en" hreflang="en" data-title="Tau (particle)" data-language-autonym="English" data-language-local-name="anglès" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Ta%C5%ADono" title="Taŭono - esperanto" lang="eo" hreflang="eo" data-title="Taŭono" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Tau_(part%C3%ADcula)" title="Tau (partícula) - espanyol" lang="es" hreflang="es" data-title="Tau (partícula)" data-language-autonym="Español" data-language-local-name="espanyol" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Tau_(partikula)" title="Tau (partikula) - basc" lang="eu" hreflang="eu" data-title="Tau (partikula)" data-language-autonym="Euskara" data-language-local-name="basc" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AA%D8%A7%D9%88_(%D8%B0%D8%B1%D9%87)" title="تاو (ذره) - persa" lang="fa" hreflang="fa" data-title="تاو (ذره)" data-language-autonym="فارسی" data-language-local-name="persa" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Tau_(alkeishiukkanen)" title="Tau (alkeishiukkanen) - finès" lang="fi" hreflang="fi" data-title="Tau (alkeishiukkanen)" data-language-autonym="Suomi" data-language-local-name="finès" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Tau_(particule)" title="Tau (particule) - francès" lang="fr" hreflang="fr" data-title="Tau (particule)" data-language-autonym="Français" data-language-local-name="francès" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/T%C3%B3%C3%B3n" title="Tóón - irlandès" lang="ga" hreflang="ga" data-title="Tóón" data-language-autonym="Gaeilge" data-language-local-name="irlandès" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%98%D7%90%D7%95_(%D7%97%D7%9C%D7%A7%D7%99%D7%A7)" title="טאו (חלקיק) - hebreu" lang="he" hreflang="he" data-title="טאו (חלקיק)" data-language-autonym="עברית" data-language-local-name="hebreu" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%9F%E0%A4%BE%E0%A4%8A_(%E0%A4%95%E0%A4%A3)" title="टाऊ (कण) - hindi" lang="hi" hreflang="hi" data-title="टाऊ (कण)" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Tau_lepton" title="Tau lepton - croat" lang="hr" hreflang="hr" data-title="Tau lepton" data-language-autonym="Hrvatski" data-language-local-name="croat" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Tau-lepton" title="Tau-lepton - hongarès" lang="hu" hreflang="hu" data-title="Tau-lepton" data-language-autonym="Magyar" data-language-local-name="hongarès" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8F%D5%A1%D5%B8%D6%82_(%D5%B4%D5%A1%D5%BD%D5%B6%D5%AB%D5%AF)" title="Տաու (մասնիկ) - armeni" lang="hy" hreflang="hy" data-title="Տաու (մասնիկ)" data-language-autonym="Հայերեն" data-language-local-name="armeni" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Tau_(partikel)" title="Tau (partikel) - indonesi" lang="id" hreflang="id" data-title="Tau (partikel)" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesi" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Tauone" title="Tauone - italià" lang="it" hreflang="it" data-title="Tauone" data-language-autonym="Italiano" data-language-local-name="italià" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%BF%E3%82%A6%E7%B2%92%E5%AD%90" title="タウ粒子 - japonès" lang="ja" hreflang="ja" data-title="タウ粒子" data-language-autonym="日本語" data-language-local-name="japonès" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A2%E1%83%90%E1%83%9D%E1%83%9C%E1%83%98_(%E1%83%9C%E1%83%90%E1%83%AC%E1%83%98%E1%83%9A%E1%83%90%E1%83%99%E1%83%98)" title="ტაონი (ნაწილაკი) - georgià" lang="ka" hreflang="ka" data-title="ტაონი (ნაწილაკი)" data-language-autonym="ქართული" data-language-local-name="georgià" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%ED%83%80%EC%9A%B0_%EC%9E%85%EC%9E%90" title="타우 입자 - coreà" lang="ko" hreflang="ko" data-title="타우 입자" data-language-autonym="한국어" data-language-local-name="coreà" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Tauon" title="Tauon - llatí" lang="la" hreflang="la" data-title="Tauon" data-language-autonym="Latina" data-language-local-name="llatí" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Tau_(netuurk%C3%B3nde)" title="Tau (netuurkónde) - limburguès" lang="li" hreflang="li" data-title="Tau (netuurkónde)" data-language-autonym="Limburgs" data-language-local-name="limburguès" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Taonas" title="Taonas - lituà" lang="lt" hreflang="lt" data-title="Taonas" data-language-autonym="Lietuvių" data-language-local-name="lituà" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Tau_da%C4%BCi%C5%86a" title="Tau daļiņa - letó" lang="lv" hreflang="lv" data-title="Tau daļiņa" data-language-autonym="Latviešu" data-language-local-name="letó" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A2%D0%B0%D1%83-%D1%87%D0%B5%D1%81%D1%82%D0%B8%D1%87%D0%BA%D0%B0" title="Тау-честичка - macedoni" lang="mk" hreflang="mk" data-title="Тау-честичка" data-language-autonym="Македонски" data-language-local-name="macedoni" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Lepton_tau" title="Lepton tau - malai" lang="ms" hreflang="ms" data-title="Lepton tau" data-language-autonym="Bahasa Melayu" data-language-local-name="malai" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Tau-Lepton" title="Tau-Lepton - baix alemany" lang="nds" hreflang="nds" data-title="Tau-Lepton" data-language-autonym="Plattdüütsch" data-language-local-name="baix alemany" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Tau_(lepton)" title="Tau (lepton) - neerlandès" lang="nl" hreflang="nl" data-title="Tau (lepton)" data-language-autonym="Nederlands" data-language-local-name="neerlandès" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Tau-lepton" title="Tau-lepton - noruec nynorsk" lang="nn" hreflang="nn" data-title="Tau-lepton" data-language-autonym="Norsk nynorsk" data-language-local-name="noruec nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Tau_(element%C3%A6rpartikkel)" title="Tau (elementærpartikkel) - noruec bokmål" lang="nb" hreflang="nb" data-title="Tau (elementærpartikkel)" data-language-autonym="Norsk bokmål" data-language-local-name="noruec bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Tau_(particula)" title="Tau (particula) - occità" lang="oc" hreflang="oc" data-title="Tau (particula)" data-language-autonym="Occitan" data-language-local-name="occità" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%9F%E0%A8%BE%E0%A8%93_(%E0%A8%95%E0%A8%A3)" title="ਟਾਓ (ਕਣ) - panjabi" lang="pa" hreflang="pa" data-title="ਟਾਓ (ਕਣ)" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="panjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Taon" title="Taon - polonès" lang="pl" hreflang="pl" data-title="Taon" data-language-autonym="Polski" data-language-local-name="polonès" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D9%B9%D8%A7%D8%A4_%D9%84%D9%BE%D9%B9%D9%86" title="ٹاؤ لپٹن - Western Punjabi" lang="pnb" hreflang="pnb" data-title="ٹاؤ لپٹن" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Tau_(part%C3%ADcula)" title="Tau (partícula) - portuguès" lang="pt" hreflang="pt" data-title="Tau (partícula)" data-language-autonym="Português" data-language-local-name="portuguès" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A2%D0%B0%D1%83-%D0%BB%D0%B5%D0%BF%D1%82%D0%BE%D0%BD" title="Тау-лептон - rus" lang="ru" hreflang="ru" data-title="Тау-лептон" data-language-autonym="Русский" data-language-local-name="rus" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Tauon" title="Tauon - serbocroat" lang="sh" hreflang="sh" data-title="Tauon" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbocroat" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Tau_lepton" title="Tau lepton - Simple English" lang="en-simple" hreflang="en-simple" data-title="Tau lepton" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Tau%C3%B3n" title="Tauón - eslovac" lang="sk" hreflang="sk" data-title="Tauón" data-language-autonym="Slovenčina" data-language-local-name="eslovac" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Lepton_tau" title="Lepton tau - eslovè" lang="sl" hreflang="sl" data-title="Lepton tau" data-language-autonym="Slovenščina" data-language-local-name="eslovè" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Tau_lepton" title="Tau lepton - serbi" lang="sr" hreflang="sr" data-title="Tau lepton" data-language-autonym="Српски / srpski" data-language-local-name="serbi" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Tau-lepton" title="Tau-lepton - suec" lang="sv" hreflang="sv" data-title="Tau-lepton" data-language-autonym="Svenska" data-language-local-name="suec" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Tau_(partikulo)" title="Tau (partikulo) - tagal" lang="tl" hreflang="tl" data-title="Tau (partikulo)" data-language-autonym="Tagalog" data-language-local-name="tagal" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Tau_(par%C3%A7ac%C4%B1k)" title="Tau (parçacık) - turc" lang="tr" hreflang="tr" data-title="Tau (parçacık)" data-language-autonym="Türkçe" data-language-local-name="turc" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A2%D0%B0%D1%83-%D0%BB%D0%B5%D0%BF%D1%82%D0%BE%D0%BD" title="Тау-лептон - ucraïnès" lang="uk" hreflang="uk" data-title="Тау-лептон" data-language-autonym="Українська" data-language-local-name="ucraïnès" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Tau_(h%E1%BA%A1t)" title="Tau (hạt) - vietnamita" lang="vi" hreflang="vi" data-title="Tau (hạt)" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Tau_(partikulo)" title="Tau (partikulo) - waray" lang="war" hreflang="war" data-title="Tau (partikulo)" data-language-autonym="Winaray" data-language-local-name="waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%CE%A4%E5%AD%90" title="Τ子 - xinès" lang="zh" hreflang="zh" data-title="Τ子" data-language-autonym="中文" data-language-local-name="xinès" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%CE%A4%E5%AD%90" title="Τ子 - cantonès" lang="yue" hreflang="yue" data-title="Τ子" data-language-autonym="粵語" data-language-local-name="cantonès" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q188392#sitelinks-wikipedia" title="Modifica enllaços interlingües" class="wbc-editpage">Modifica els enllaços</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Espais de noms"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Lept%C3%B3_tau" title="Vegeu el contingut de la pàgina [c]" accesskey="c"><span>Pàgina</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a 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vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Eines" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Eines</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Eines</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">amaga</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Més opcions" > <div class="vector-menu-heading"> Accions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Lept%C3%B3_tau"><span>Mostra</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Lept%C3%B3_tau&amp;action=edit" title="Modifica el codi font d&#039;aquesta pàgina [e]" accesskey="e"><span>Modifica</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Lept%C3%B3_tau&amp;action=history"><span>Mostra l'historial</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Especial:Enlla%C3%A7os/Lept%C3%B3_tau" title="Una llista de totes les pàgines wiki que enllacen amb aquesta [j]" accesskey="j"><span>Què hi enllaça</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Especial:Seguiment/Lept%C3%B3_tau" rel="nofollow" title="Canvis recents a pàgines enllaçades des d&#039;aquesta pàgina [k]" accesskey="k"><span>Canvis relacionats</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Especial:P%C3%A0gines_especials" title="Llista totes les pàgines especials [q]" accesskey="q"><span>Pàgines especials</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Lept%C3%B3_tau&amp;oldid=33913121" title="Enllaç permanent a aquesta revisió de la pàgina"><span>Enllaç permanent</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Lept%C3%B3_tau&amp;action=info" title="Més informació sobre aquesta pàgina"><span>Informació de la pàgina</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Especial:Citau&amp;page=Lept%C3%B3_tau&amp;id=33913121&amp;wpFormIdentifier=titleform" title="Informació sobre com citar aquesta pàgina"><span>Citau aquest article</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Especial:UrlShortener&amp;url=https%3A%2F%2Fca.wikipedia.org%2Fwiki%2FLept%25C3%25B3_tau"><span>Obtén una URL abreujada</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Especial:QrCode&amp;url=https%3A%2F%2Fca.wikipedia.org%2Fwiki%2FLept%25C3%25B3_tau"><span>Descarrega el codi QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Imprimeix/exporta </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Especial:Llibre&amp;bookcmd=book_creator&amp;referer=Lept%C3%B3+tau"><span>Crea un llibre</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Especial:DownloadAsPdf&amp;page=Lept%C3%B3_tau&amp;action=show-download-screen"><span>Baixa com a PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Lept%C3%B3_tau&amp;printable=yes" title="Versió per a impressió d&#039;aquesta pàgina [p]" accesskey="p"><span>Versió per a impressora</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> En altres projectes </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q188392" title="Enllaç a l&#039;element del repositori de dades connectat [g]" accesskey="g"><span>Element a Wikidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Eines de la pàgina"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aparença"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Aparença</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">amaga</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">De la Viquipèdia, l&#039;enciclopèdia lliure</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><span class="mw-redirectedfrom">(S'ha redirigit des de: <a href="/w/index.php?title=Antitau%C3%B3&amp;redirect=no" class="mw-redirect" title="Antitauó">Antitauó</a>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="ca" dir="ltr"><table class="infobox" style="font-size:90%;width:25em"><caption style="font-weight:bold;background-color:#b0d1ad;"><span style="float:left;"><span typeof="mw:File"><a href="/wiki/Fitxer:Atom_editor_logo_black.svg" class="mw-file-description" title="Infotaula de partícula"><img alt="Infotaula de partícula" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Atom_editor_logo_black.svg/25px-Atom_editor_logo_black.svg.png" decoding="async" width="25" height="23" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Atom_editor_logo_black.svg/38px-Atom_editor_logo_black.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Atom_editor_logo_black.svg/50px-Atom_editor_logo_black.svg.png 2x" data-file-width="131" data-file-height="120" /></a></span></span>Tauó</caption><tbody><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;">Classificació</th><td class="infobox-data"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q94535579" class="extiw" title="d:Special:EntityPage/Q94535579">leptó amb càrrega</a> i <a href="/wiki/Part%C3%ADcula_elemental" title="Partícula elemental">partícula elemental</a> <span class="penicon"><span class="mw-valign-baseline" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q188392?uselang=ca#P279" title="Modifica el valor a Wikidata"><img alt="Modifica el valor a Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/10px-Arbcom_ru_editing.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/15px-Arbcom_ru_editing.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/20px-Arbcom_ru_editing.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></span></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/Part%C3%ADcula#Composició" title="Partícula">Composició</a></th><td class="infobox-data"><a href="/wiki/Part%C3%ADcula_elemental" title="Partícula elemental">Partícula elemental</a></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/Estad%C3%ADstica_de_part%C3%ADcules" title="Estadística de partícules">Estadística</a></th><td class="infobox-data"><a href="/wiki/Fermi%C3%B3" title="Fermió">Fermiònica</a></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;">Grup</th><td class="infobox-data"><a href="/wiki/Lept%C3%B3" title="Leptó">Leptó</a></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/Generaci%C3%B3_(f%C3%ADsica_de_part%C3%ADcules)" title="Generació (física de partícules)">Generació</a></th><td class="infobox-data">Tercera</td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/Forces_fonamentals" title="Forces fonamentals">Interaccions</a></th><td class="infobox-data"><a href="/wiki/Gravitat%C3%B2ria" class="mw-redirect" title="Gravitatòria">Gravetat</a>, <a href="/wiki/Interacci%C3%B3_electromagn%C3%A8tica" class="mw-redirect" title="Interacció electromagnètica">Electromagnetisme</a>, <a href="/wiki/Interacci%C3%B3_feble" class="mw-redirect" title="Interacció feble">Feble</a></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;">Símbol</th><td class="infobox-data">τ<sup>-</sup></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/Antipart%C3%ADcula" title="Antipartícula">Antipartícula</a></th><td class="infobox-data"><a href="/wiki/Antitau" class="mw-redirect" title="Antitau">Antitau</a> τ<sup>+</sup></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;">Descoberta</th><td class="infobox-data"><span style="white-space:nowrap;"><a href="/wiki/Martin_Lewis_Perl" title="Martin Lewis Perl">Martin Lewis Perl</a> <i>et al.</i></span> (<a href="/wiki/1975" title="1975">1975</a>)<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/Massa_invariant" class="mw-redirect" title="Massa invariant">Massa</a></th><td class="infobox-data">1.776,82±0,16 <a href="/wiki/MeV" class="mw-redirect" title="MeV">MeV</a>/<a href="/wiki/Velocitat_de_la_llum" title="Velocitat de la llum">c</a><sup>2</sup><sup id="cite_ref-PDG_2-0" class="reference"><a href="#cite_note-PDG-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/Vida_mitjana" title="Vida mitjana">Vida mitjana</a></th><td class="infobox-data">0 <span class="penicon"><span class="mw-valign-baseline" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q188392?uselang=ca#P2645" title="Modifica el valor a Wikidata"><img alt="Modifica el valor a Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/10px-Arbcom_ru_editing.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/15px-Arbcom_ru_editing.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/20px-Arbcom_ru_editing.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></span></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/C%C3%A0rrega_el%C3%A8ctrica" title="Càrrega elèctrica">Càrrega elèctrica</a></th><td class="infobox-data">−1 <a href="/wiki/C%C3%A0rrega_elemental" class="mw-redirect" title="Càrrega elemental">e</a><sup id="cite_ref-PDG_2-1" class="reference"><a href="#cite_note-PDG-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/C%C3%A0rrega_de_color" title="Càrrega de color">Càrrega de color</a></th><td class="infobox-data">Cap</td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/Esp%C3%ADn" title="Espín">Espín</a></th><td class="infobox-data"><span class="frac nowrap"><sup>1</sup>&#8260;<sub>2</sub></span><sup id="cite_ref-PDG_2-2" class="reference"><a href="#cite_note-PDG-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/Supersimetria" title="Supersimetria">Supercompanya</a></th><td class="infobox-data"><a href="/wiki/Stau%C3%B3" class="mw-redirect" title="Stauó">Stauó</a></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;">Número de partícula de Monte Carlo</th><td class="infobox-data">15 <span class="penicon" data-bridge-edit-flow="single-best-value"><span class="mw-valign-baseline" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q188392?uselang=ca#P1360" title="Modifica el valor a Wikidata"><img alt="Modifica el valor a Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/10px-Arbcom_ru_editing.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/15px-Arbcom_ru_editing.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/20px-Arbcom_ru_editing.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></span></td></tr></tbody></table> <p>El <b>tauó</b>, <b>leptó τ</b> o <b>partícula τ</b><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> és una <a href="/wiki/Part%C3%ADcula_elemental" title="Partícula elemental">partícula elemental</a> amb <a href="/wiki/C%C3%A0rrega_el%C3%A8ctrica" title="Càrrega elèctrica">càrrega</a> negativa (–<a href="/wiki/C%C3%A0rrega_el%C3%A8ctrica_elemental" title="Càrrega elèctrica elemental">e</a>), <a href="/wiki/Esp%C3%ADn" title="Espín">espín</a> d'<span class="frac nowrap"><sup>1</sup>&#8260;<sub>2</sub></span> i <a href="/wiki/Massa" title="Massa">massa</a> igual a 1 777 <a href="/wiki/MeV" class="mw-redirect" title="MeV">MeV</a>/c². Forma part de la tercera família de partícules elementals conegudes com a <a href="/wiki/Fermions" class="mw-redirect" title="Fermions">fermions</a>. Totes aquestes partícules són conegudes com a <a href="/wiki/Leptons" class="mw-redirect" title="Leptons">leptons</a>, i tenen aparellat un <a href="/wiki/Neutr%C3%AD" title="Neutrí">neutrí</a> per a cadascuna. És una partícula inestable amb una semivida de 2,96 ×&#160;10<sup>–13</sup> s o 0,296 ps, més curta que la del muó, i es desintegra per acció de la <a href="/wiki/For%C3%A7a_nuclear_feble" title="Força nuclear feble">força feble</a> en altres leptons i <a href="/wiki/Hadr%C3%B3" title="Hadró">hadrons</a>, majoritàriament <a href="/wiki/Pi%C3%B3" title="Pió">pions</a>. </p> <figure class="mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Tau_lepton.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Tau_lepton.svg/100px-Tau_lepton.svg.png" decoding="async" width="100" height="122" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Tau_lepton.svg/150px-Tau_lepton.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Tau_lepton.svg/200px-Tau_lepton.svg.png 2x" data-file-width="113" data-file-height="138" /></a><figcaption></figcaption></figure> <p>Com en el cas de la resta de partícules elementals, el tauó té la seva <a href="/wiki/Antipart%C3%ADcula" title="Antipartícula">antipartícula</a> amb igual massa i espín, però de càrrega oposada, que rep el nom d&#39;<b>antitauó</b>. El tauó es representa com a τ<sup>–</sup>, perquè té càrrega elèctrica negativa (–<i><a href="/wiki/C%C3%A0rrega_el%C3%A8ctrica_elemental" title="Càrrega elèctrica elemental">e</a></i> = –1,602 ×&#160;10<sup>–19</sup> C) i l'antitauó com a τ<sup>+</sup> perquè la té positiva (+<i>e</i> = +1,602 ×&#160;10<sup>–19</sup> C).<sup id="cite_ref-:2_4-0" class="reference"><a href="#cite_note-:2-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> </p> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Martin_Perl_-_tau.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/6/65/Martin_Perl_-_tau.jpg" decoding="async" width="123" height="148" class="mw-file-element" data-file-width="123" data-file-height="148" /></a><figcaption>Martin L. Perl.</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:SLAC_National_Accelerator_Laboratory_Aerial.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/SLAC_National_Accelerator_Laboratory_Aerial.jpg/220px-SLAC_National_Accelerator_Laboratory_Aerial.jpg" decoding="async" width="220" height="330" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/SLAC_National_Accelerator_Laboratory_Aerial.jpg/330px-SLAC_National_Accelerator_Laboratory_Aerial.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/SLAC_National_Accelerator_Laboratory_Aerial.jpg/440px-SLAC_National_Accelerator_Laboratory_Aerial.jpg 2x" data-file-width="800" data-file-height="1200" /></a><figcaption><a href="/wiki/Accelerador_lineal" title="Accelerador lineal">Accelerador lineal</a> de la <a href="/wiki/Universitat_Stanford" title="Universitat Stanford">Universitat Stanford</a> (SLAC).</figcaption></figure> <p>El tauó fou detectat en experiments dirigits pel físic estatunidenc <a href="/wiki/Martin_Lewis_Perl" title="Martin Lewis Perl">Martin Lewis Perl</a> (1927-2014) en el Centre de l'Accelerador Lineal de Stanford (SLAC) i en <a href="/wiki/Laboratori_Nacional_Lawrence_de_Berkeley" title="Laboratori Nacional Lawrence de Berkeley">Laboratori Nacional de Lawrence Berkeley</a> (LBL) durant 1974 i 1977<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-:1_6-0" class="reference"><a href="#cite_note-:1-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> en una sèrie d'experiments on feien xocar <a href="/wiki/Electr%C3%B3" title="Electró">electrons</a> contra <a href="/wiki/Positr%C3%B3" title="Positró">positrons</a> accelerats fins a grans velocitats. De l'anihilació en xocar una partícula de <a href="/wiki/Mat%C3%A8ria" title="Matèria">matèria</a>, l'electró, amb una d'<a href="/wiki/Antimat%C3%A8ria" title="Antimatèria">antimatèria</a>, el positró, es generava una gran quantitat d'energia que es materialitzava en noves partícules. Però no fou fins al 1979 que queda confirmada l'existència del leptó tau.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup> Les reaccions foren diverses en funció de la velocitat dels electrons i positrons. Per exemple: </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle e^{-}+e^{+}\longrightarrow \tau ^{-}+\tau ^{+}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo>+</mo> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>+</mo> </mrow> </msup> <mo stretchy="false">&#x27F6;<!-- ⟶ --></mo> <msup> <mi>&#x03C4;<!-- τ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo>+</mo> <msup> <mi>&#x03C4;<!-- τ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>+</mo> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle e^{-}+e^{+}\longrightarrow \tau ^{-}+\tau ^{+}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4d98f2de679f144272d8efc009f326a772e099e6" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.505ex; width:21.502ex; height:2.676ex;" alt="{\displaystyle e^{-}+e^{+}\longrightarrow \tau ^{-}+\tau ^{+}}"></span><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle e^{-}+e^{+}\longrightarrow \tau ^{-}+\tau ^{+}+e^{-}+e^{+}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo>+</mo> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>+</mo> </mrow> </msup> <mo stretchy="false">&#x27F6;<!-- ⟶ --></mo> <msup> <mi>&#x03C4;<!-- τ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo>+</mo> <msup> <mi>&#x03C4;<!-- τ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>+</mo> </mrow> </msup> <mo>+</mo> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo>+</mo> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>+</mo> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle e^{-}+e^{+}\longrightarrow \tau ^{-}+\tau ^{+}+e^{-}+e^{+}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c21c472d4aead9997d2f1a3b2f68c5c8f29ccab1" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.505ex; width:32.372ex; height:2.676ex;" alt="{\displaystyle e^{-}+e^{+}\longrightarrow \tau ^{-}+\tau ^{+}+e^{-}+e^{+}}"></span> </p><p>Perl l'anomenà en anglès <i>tauon</i> ‘tauó’ perquè era el tercer leptó en ser descobert i la primera lletra del mot grec τρίτος, <i>trítos</i>, ‘tercer’ és la lletra grega <a href="/wiki/Tau_(lletra_grega)" title="Tau (lletra grega)">tau</a>.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">&#91;</span>8<span class="cite-bracket">&#93;</span></a></sup> Aquest descobriment contribuí a fer que el <a href="/wiki/Premi_Nobel_de_F%C3%ADsica" title="Premi Nobel de Física">Premi Nobel de Física</a> de 1995 fou atorgat a Perl.<sup id="cite_ref-:1_6-1" class="reference"><a href="#cite_note-:1-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Quark_structure_pion.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/62/Quark_structure_pion.svg/220px-Quark_structure_pion.svg.png" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/62/Quark_structure_pion.svg/330px-Quark_structure_pion.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/62/Quark_structure_pion.svg/440px-Quark_structure_pion.svg.png 2x" data-file-width="525" data-file-height="525" /></a><figcaption>Estructura del <a href="/wiki/Pi%C3%B3" title="Pió">pió</a> π+ amb la parella de <a href="/wiki/Quark" title="Quark">quarks</a> <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle u{\bar {d}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>u</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mi>d</mi> <mo stretchy="false">&#x00AF;<!-- ¯ --></mo> </mover> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle u{\bar {d}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1259f7e687812e755648360a3d4ca7bb905488d7" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.911ex; height:2.509ex;" alt="{\textstyle u{\bar {d}}}"></span>.</figcaption></figure> <p>El tauó és similar a l'<a href="/wiki/Electr%C3%B3" title="Electró">electró</a>, i al <a href="/wiki/Mu%C3%B3" title="Muó">muó</a>, però més pesant (m<sub>τ</sub> = 1 777 <a href="/wiki/MeV" class="mw-redirect" title="MeV">MeV</a>/c² = 3,181 ×&#160;10<sup>–27</sup> kg). La massa de l'electró és m<sub>e</sub> = 0,511 MeV/c² i la del muó m<sub>μ</sub> = 105,7 MeV/c². Fins i tot molt més pesant que el <a href="/wiki/Prot%C3%B3" title="Protó">protó</a> i el <a href="/wiki/Neutr%C3%B3" title="Neutró">neutró</a> (m<sub>p</sub> = 938,3 MeV/c² = 1,673 ×&#160;10<sup>–27</sup> i m<sub>n</sub> = 939,6 MeV/c²), constituïts per tres <a href="/wiki/Quark" title="Quark">quarks</a> cadascun i que són <a href="/wiki/Hadr%C3%B3" title="Hadró">hadrons</a>. Com el muó és una partícula inestable amb una <a href="/wiki/Per%C3%ADode_de_semidesintegraci%C3%B3" title="Període de semidesintegració">semivida</a> de 2,96 ×&#160;10<sup>–13</sup> s o 0,296 ps, molt més curta que la del muó (2,2 ×&#160;10<sup>–6</sup> s o 2,2 μs).<sup id="cite_ref-:2_4-1" class="reference"><a href="#cite_note-:2-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> </p><p>La desintegració del tauó pot donar lloc a diferents partícules. La desintegració més important, el 25,49&#160;% de les vegades, dona lloc a dos <a href="/wiki/Pi%C3%B3" title="Pió">pions</a> i un neutrí tauònic.<sup id="cite_ref-:0_9-0" class="reference"><a href="#cite_note-:0-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup> És l'únic leptó que pot desintegrar-se donant lloc a hadrons, especialment pions, i per tant també és l'únic leptó que pot desintegrar-se en <a href="/wiki/Quark" title="Quark">quarks</a>.<sup id="cite_ref-:2_4-2" class="reference"><a href="#cite_note-:2-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> El pió <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \pi ^{-}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>&#x03C0;<!-- π --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \pi ^{-}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/79b46dc2c365c46e060c2cde13a573c9fb3d0106" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.845ex; height:2.509ex;" alt="{\displaystyle \pi ^{-}}"></span> està constituït per la parella <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle {\bar {u}}d}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mi>u</mi> <mo stretchy="false">&#x00AF;<!-- ¯ --></mo> </mover> </mrow> </mrow> <mi>d</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle {\bar {u}}d}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/441449a0a6c943fca8d9b51d7bce0bcf178a2fb1" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.546ex; height:2.176ex;" alt="{\textstyle {\bar {u}}d}"></span> (<a href="/wiki/Antiquark_u" title="Antiquark u">antiquark up</a> i <a href="/wiki/Quark_d" title="Quark d">quark down</a>), el pió <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \pi ^{0}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>&#x03C0;<!-- π --></mi> <mrow class="MJX-TeXAtom-ORD"> <mn>0</mn> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \pi ^{0}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0e5c69d6c2f4f402dbc665745b9a042083ca8977" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.388ex; height:2.676ex;" alt="{\displaystyle \pi ^{0}}"></span> està format per la parella <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle u{\bar {u}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>u</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mi>u</mi> <mo stretchy="false">&#x00AF;<!-- ¯ --></mo> </mover> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle u{\bar {u}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/77e37d1cb710aff5f7575292732e5f4bd0f4f381" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.659ex; height:2.009ex;" alt="{\textstyle u{\bar {u}}}"></span> o per la parella <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle d{\bar {d}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>d</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mi>d</mi> <mo stretchy="false">&#x00AF;<!-- ¯ --></mo> </mover> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle d{\bar {d}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/58f6320a7864a771b63eadf09d63f2d12f2a4489" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.798ex; height:2.509ex;" alt="{\textstyle d{\bar {d}}}"></span>:<sup id="cite_ref-:0_9-1" class="reference"><a href="#cite_note-:0-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup> </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \tau ^{-}\longrightarrow \pi ^{-}+\pi ^{0}+\nu _{\tau }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>&#x03C4;<!-- τ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo stretchy="false">&#x27F6;<!-- ⟶ --></mo> <msup> <mi>&#x03C0;<!-- π --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo>+</mo> <msup> <mi>&#x03C0;<!-- π --></mi> <mrow class="MJX-TeXAtom-ORD"> <mn>0</mn> </mrow> </msup> <mo>+</mo> <msub> <mi>&#x03BD;<!-- ν --></mi> <mrow class="MJX-TeXAtom-ORD"> <mi>&#x03C4;<!-- τ --></mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \tau ^{-}\longrightarrow \pi ^{-}+\pi ^{0}+\nu _{\tau }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/7717eec84674e33ceb00beb168ca343d10fb93bd" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:21.009ex; height:3.009ex;" alt="{\displaystyle \tau ^{-}\longrightarrow \pi ^{-}+\pi ^{0}+\nu _{\tau }}"></span> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Feynman_diagram_of_decay_of_tau_lepton.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/11/Feynman_diagram_of_decay_of_tau_lepton.svg/220px-Feynman_diagram_of_decay_of_tau_lepton.svg.png" decoding="async" width="220" height="114" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/11/Feynman_diagram_of_decay_of_tau_lepton.svg/330px-Feynman_diagram_of_decay_of_tau_lepton.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/11/Feynman_diagram_of_decay_of_tau_lepton.svg/440px-Feynman_diagram_of_decay_of_tau_lepton.svg.png 2x" data-file-width="388" data-file-height="201" /></a><figcaption><a href="/wiki/Diagrama_de_Feynman" title="Diagrama de Feynman">Diagrama de Feynman</a> que recull les quatre desintegracions més importants del leptó tau.</figcaption></figure> <p>Segueixen a aquesta dues desintegracions amb percentatges del 17,82&#160;% i del 17,39&#160;% que produeixen un <a href="/wiki/Electr%C3%B3" title="Electró">electró</a> <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle e^{-}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle e^{-}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/a972f527de5406fb3c965ac407c64b9aa3957ad1" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.594ex; height:2.509ex;" alt="{\displaystyle e^{-}}"></span>, un <a href="/wiki/Antineutr%C3%AD_electr%C3%B2nic" class="mw-redirect" title="Antineutrí electrònic">antineutrí electrònic</a> <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\bar {\nu }}_{e}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mi>&#x03BD;<!-- ν --></mi> <mo stretchy="false">&#x00AF;<!-- ¯ --></mo> </mover> </mrow> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mi>e</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\bar {\nu }}_{e}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/572d127df4795701cee37524b3b168f9a5db99d9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.315ex; height:2.343ex;" alt="{\displaystyle {\bar {\nu }}_{e}}"></span> i un <a href="/wiki/Neutr%C3%AD_tau" title="Neutrí tau">neutrí tauònic</a> <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \nu _{\tau }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>&#x03BD;<!-- ν --></mi> <mrow class="MJX-TeXAtom-ORD"> <mi>&#x03C4;<!-- τ --></mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \nu _{\tau }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0020fce5d76f9ed72d266a11c33044a0b6129c64" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.231ex; height:2.009ex;" alt="{\displaystyle \nu _{\tau }}"></span> a la primera, i un <a href="/wiki/Mu%C3%B3" title="Muó">muó</a> <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mu ^{-}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>&#x03BC;<!-- μ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mu ^{-}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/3a1052ef22be7feef21f5a196d2a08d30d3e9835" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:2.912ex; height:3.009ex;" alt="{\displaystyle \mu ^{-}}"></span>, un <a href="/wiki/Antineutr%C3%AD_mu%C3%B2nic" class="mw-redirect" title="Antineutrí muònic">antineutrí muònic</a> <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\bar {\nu }}_{\mu }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mi>&#x03BD;<!-- ν --></mi> <mo stretchy="false">&#x00AF;<!-- ¯ --></mo> </mover> </mrow> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mi>&#x03BC;<!-- μ --></mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\bar {\nu }}_{\mu }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e2ecbac4b0c318a4a48e860cb22820e6241236e7" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:2.54ex; height:2.676ex;" alt="{\displaystyle {\bar {\nu }}_{\mu }}"></span> i un <a href="/wiki/Neutr%C3%AD_tau" title="Neutrí tau">neutrí tauònic</a> <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \nu _{\tau }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>&#x03BD;<!-- ν --></mi> <mrow class="MJX-TeXAtom-ORD"> <mi>&#x03C4;<!-- τ --></mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \nu _{\tau }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0020fce5d76f9ed72d266a11c33044a0b6129c64" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.231ex; height:2.009ex;" alt="{\displaystyle \nu _{\tau }}"></span>. Les reaccions són:<sup id="cite_ref-:0_9-2" class="reference"><a href="#cite_note-:0-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup> </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \tau ^{-}\longrightarrow e^{-}+{\bar {\nu }}_{e}+\nu _{\tau },\quad \quad \tau ^{-}\longrightarrow \mu ^{-}+{\bar {\nu }}_{\mu }+\nu _{\tau }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>&#x03C4;<!-- τ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo stretchy="false">&#x27F6;<!-- ⟶ --></mo> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo>+</mo> <msub> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mi>&#x03BD;<!-- ν --></mi> <mo stretchy="false">&#x00AF;<!-- ¯ --></mo> </mover> </mrow> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mi>e</mi> </mrow> </msub> <mo>+</mo> <msub> <mi>&#x03BD;<!-- ν --></mi> <mrow class="MJX-TeXAtom-ORD"> <mi>&#x03C4;<!-- τ --></mi> </mrow> </msub> <mo>,</mo> <mspace width="1em" /> <mspace width="1em" /> <msup> <mi>&#x03C4;<!-- τ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo stretchy="false">&#x27F6;<!-- ⟶ --></mo> <msup> <mi>&#x03BC;<!-- μ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo>+</mo> <msub> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mi>&#x03BD;<!-- ν --></mi> <mo stretchy="false">&#x00AF;<!-- ¯ --></mo> </mover> </mrow> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mi>&#x03BC;<!-- μ --></mi> </mrow> </msub> <mo>+</mo> <msub> <mi>&#x03BD;<!-- ν --></mi> <mrow class="MJX-TeXAtom-ORD"> <mi>&#x03C4;<!-- τ --></mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \tau ^{-}\longrightarrow e^{-}+{\bar {\nu }}_{e}+\nu _{\tau },\quad \quad \tau ^{-}\longrightarrow \mu ^{-}+{\bar {\nu }}_{\mu }+\nu _{\tau }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/cde097cd284bd6dd6a703af830c6f1b3e940baa3" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:47.592ex; height:3.176ex;" alt="{\displaystyle \tau ^{-}\longrightarrow e^{-}+{\bar {\nu }}_{e}+\nu _{\tau },\quad \quad \tau ^{-}\longrightarrow \mu ^{-}+{\bar {\nu }}_{\mu }+\nu _{\tau }}"></span> </p><p>L'altra desintegració important, un 10,82&#160;% de les vegades dona un pió, el <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \pi ^{-}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>&#x03C0;<!-- π --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \pi ^{-}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/79b46dc2c365c46e060c2cde13a573c9fb3d0106" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.845ex; height:2.509ex;" alt="{\displaystyle \pi ^{-}}"></span>, i un neutrí tauònic:<sup id="cite_ref-:0_9-3" class="reference"><a href="#cite_note-:0-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup> </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \tau ^{-}\longrightarrow \pi ^{-}+\nu _{\tau }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>&#x03C4;<!-- τ --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo stretchy="false">&#x27F6;<!-- ⟶ --></mo> <msup> <mi>&#x03C0;<!-- π --></mi> <mrow class="MJX-TeXAtom-ORD"> <mo>&#x2212;<!-- − --></mo> </mrow> </msup> <mo>+</mo> <msub> <mi>&#x03BD;<!-- ν --></mi> <mrow class="MJX-TeXAtom-ORD"> <mi>&#x03C4;<!-- τ --></mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \tau ^{-}\longrightarrow \pi ^{-}+\nu _{\tau }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0127c8b51f3d16821f1260aa5198847d1d1e1d13" class="mwe-math-fallback-image-display mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:15.781ex; height:2.843ex;" alt="{\displaystyle \tau ^{-}\longrightarrow \pi ^{-}+\nu _{\tau }}"></span> </p> <div class="mw-heading mw-heading2"><h2 id="Referències"><span id="Refer.C3.A8ncies"></span>Referències</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lept%C3%B3_tau&amp;action=edit&amp;section=1" title="Modifica la secció: Referències"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist &#123;&#123;#if: &#124; references-column-count references-column-count-&#123;&#123;&#123;col&#125;&#125;&#125;" style="list-style-type: decimal;"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><span class="citation book" style="font-style:normal" id="CITEREFOkunʹ1982"><span style="font-variant: small-caps;">Okunʹ</span>, Lev Borisovich. <a rel="nofollow" class="external text" href="https://www.sciencedirect.com/book/9780444869241/leptons-and-quarks#book-info"><i>Leptons and quarks</i></a>.&#32; Amsterdam New York:&#32;North-Holland Pub. Co. Distributors for the U.S.A. and Canada, Elsevier Science Publishing, Inc,&#32;1982. <span style="font-size:90%; white-space:nowrap;"><a href="/wiki/Especial:Fonts_bibliogr%C3%A0fiques/978-0-444-86924-1" title="Especial:Fonts bibliogràfiques/978-0-444-86924-1">ISBN 978-0-444-86924-1</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Leptons+and+quarks&amp;rft.aulast=Okun%CA%B9&amp;rft.aufirst=Lev+Borisovich&amp;rft.date=1982&amp;rft.pub=North-Holland+Pub.+Co.+Distributors+for+the+U.S.A.+and+Canada%2C+Elsevier+Science+Publishing%2C+Inc&amp;rft.place=Amsterdam+New+York&amp;rft.isbn=978-0-444-86924-1&amp;rft_id=https%3A%2F%2Fwww.sciencedirect.com%2Fbook%2F9780444869241%2Fleptons-and-quarks%23book-info"><span style="display: none;">&#160;</span></span></span> </li> <li id="cite_note-PDG-2"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-PDG_2-0">2,0</a></sup> <sup><a href="#cite_ref-PDG_2-1">2,1</a></sup> <sup><a href="#cite_ref-PDG_2-2">2,2</a></sup></span> <span class="reference-text"><span class="citation" style="font-style:normal">K. Nakamura <i>et al</i>. (<a href="/w/index.php?title=Particle_Data_Group&amp;action=edit&amp;redlink=1" class="new" title="Particle Data Group (encara no existeix)">Particle Data Group</a>)&#32;«<a rel="nofollow" class="external text" href="http://pdglive.lbl.gov/Rsummary.brl?nodein=S035&amp;inscript=Y&amp;fsizein=1&amp;return=S003,S004,S035&amp;clumpin0=D&amp;wholedec0=Y">Review of Particle Physics: Leptons</a>».&#32;<i><a href="/w/index.php?title=Journal_of_Physics_G&amp;action=edit&amp;redlink=1" class="new" title="Journal of Physics G (encara no existeix)">Journal of Physics G</a></i>,&#32;37,&#32;7A,&#32;2010,&#32;pàg.&#160;525–553. <a href="/wiki/Bibcode" title="Bibcode">Bibcode</a>: <a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/abs/2010JPhG...37g5021N">2010JPhG...37g5021N</a>. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1088%2F0954-3899%2F37%2F7A%2F075021">10.1088/0954-3899/37/7A/075021</a>.</span><sup class="noprint Inline-Template"><span title="" style="white-space: nowrap;"><i>&#91;<a href="/wiki/Viquip%C3%A8dia:Enlla%C3%A7os_externs#Manteniment_d&#39;enllaços_externs" title="Viquipèdia:Enllaços externs">Enllaç no actiu</a>&#93;</i></span></sup></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><span class="citation" style="font-style:normal">«<a rel="nofollow" class="external text" href="https://www.termcat.cat/ca/cercaterm/tau%C3%B3?type=basic">tauó</a>».&#32;<i>Cercaterm</i>,&#32;TERMCAT.&#32;[Consulta: 30 desembre 2021].</span></span> </li> <li id="cite_note-:2-4"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-:2_4-0">4,0</a></sup> <sup><a href="#cite_ref-:2_4-1">4,1</a></sup> <sup><a href="#cite_ref-:2_4-2">4,2</a></sup></span> <span class="reference-text"><span class="citation" style="font-style:normal"><span style="font-variant: small-caps;">Nave</span>, R.&#32;«<a rel="nofollow" class="external text" href="http://hyperphysics.phy-astr.gsu.edu/hbase/Particles/lepton.html">Leptons</a>».&#32;<i>HyperPhysics</i>.&#32;[Consulta: 27 maig 2023].</span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><span class="citation book" style="font-style:normal" id="CITEREFPerl1977"><span style="font-variant: small-caps;">Perl</span>, M.L.. <a rel="nofollow" class="external text" href="https://inis.iaea.org/search/search.aspx?orig_q=RN:10428602"><i>Comments on the tau heavy lepton</i></a>.&#32; SLAC-PUB--1991,&#32;1977.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Comments+on+the+tau+heavy+lepton&amp;rft.aulast=Perl&amp;rft.aufirst=M.L.&amp;rft.date=1977&amp;rft.pub=SLAC-PUB--1991&amp;rft_id=https%3A%2F%2Finis.iaea.org%2Fsearch%2Fsearch.aspx%3Forig_q%3DRN%3A10428602"><span style="display: none;">&#160;</span></span></span> </li> <li id="cite_note-:1-6"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-:1_6-0">6,0</a></sup> <sup><a href="#cite_ref-:1_6-1">6,1</a></sup></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFSutton2003"><span style="font-variant: small-caps;">Sutton</span>, Christine.&#32;«<a rel="nofollow" class="external text" href="http://www.britannica.com/EBchecked/topic/">tau</a>»&#32;(en anglès).&#32;<i><a href="/wiki/Encyclop%C3%A6dia_Britannica" title="Encyclopædia Britannica">Encyclopædia Britannica</a></i>,&#32;2003.</span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFHalyo2014"><span style="font-variant: small-caps;">Halyo</span>, Valerie&#32;«<a rel="nofollow" class="external text" href="https://www.nature.com/articles/516330a">Martin L. Perl (1927–2014)</a>»&#32;(en anglès).&#32;<i>Nature</i>,&#32;516,&#32;7531,&#32;12-2014,&#32;pàg.&#160;330–330. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1038%2F516330a">10.1038/516330a</a>. <a href="/wiki/ISSN" title="ISSN">ISSN</a>: <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/1476-4687">1476-4687</a>.</span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><a href="#cite_ref-8">↑</a></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFPerl1977"><span style="font-variant: small-caps;">Perl</span>, Martin L.&#32;«<a rel="nofollow" class="external text" href="https://slac.stanford.edu/pubs/slacpubs/1750/slac-pub-1923.pdf">Evidence for, and properties of, the new charged heavy lepton</a>».&#32;<i>SLAC-PUB-1923</i>,&#32;4-1977,&#32;pàg.&#160;3.</span></span> </li> <li id="cite_note-:0-9"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-:0_9-0">9,0</a></sup> <sup><a href="#cite_ref-:0_9-1">9,1</a></sup> <sup><a href="#cite_ref-:0_9-2">9,2</a></sup> <sup><a href="#cite_ref-:0_9-3">9,3</a></sup></span> <span class="reference-text"><span class="citation" style="font-style:normal" id="CITEREFHagiwaraHikasaNakamuraTanabashi2002"><span style="font-variant: small-caps;">Hagiwara</span>, K.;&#32;<span style="font-variant: small-caps;">Hikasa</span>, K.;&#32;<span style="font-variant: small-caps;">Nakamura</span>, K.;&#32;<span style="font-variant: small-caps;">Tanabashi</span>, M.;&#32;<span style="font-variant: small-caps;">Aguilar-Benitez</span>, M.&#32;«<a rel="nofollow" class="external text" href="https://link.aps.org/doi/10.1103/PhysRevD.66.010001">Review of Particle Properties</a>»&#32;(en anglès).&#32;<i>Physical Review D</i>,&#32;66,&#32;1,&#32;01-07-2002. <a href="/wiki/DOI" title="DOI">DOI</a>: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1103%2FPhysRevD.66.010001">10.1103/PhysRevD.66.010001</a>. <a href="/wiki/ISSN" title="ISSN">ISSN</a>: <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/0556-2821">0556-2821</a>.</span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Enllaços_externs"><span id="Enlla.C3.A7os_externs"></span>Enllaços externs</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Lept%C3%B3_tau&amp;action=edit&amp;section=2" title="Modifica la secció: Enllaços externs"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external free" href="http://fisteo12.ific.uv.es/~santamar/poster-tau.a4.pdf">http://fisteo12.ific.uv.es/~santamar/poster-tau.a4.pdf</a>.</li></ul> <div role="navigation" class="navbox" aria-labelledby="Model_estàndard_de_física_de_partícules" style="padding:3px"><table class="nowraplinks collapsible collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div class="plainlinks hlist navbar mini"><ul><li class="nv-view"><span typeof="mw:File"><a href="/wiki/Plantilla:Part%C3%ADcules" title="Plantilla:Partícules"><img alt="Vegeu aquesta plantilla" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/Commons-emblem-notice.svg/18px-Commons-emblem-notice.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/Commons-emblem-notice.svg/27px-Commons-emblem-notice.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/28/Commons-emblem-notice.svg/36px-Commons-emblem-notice.svg.png 2x" data-file-width="48" data-file-height="48" /></a></span></li></ul></div><div id="Model_estàndard_de_física_de_partícules" style="font-size:114%;margin:0 4em"><a href="/wiki/Model_est%C3%A0ndard_de_f%C3%ADsica_de_part%C3%ADcules" title="Model estàndard de física de partícules">Model estàndard de física de partícules</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Part%C3%ADcula_elemental" title="Partícula elemental">Elementals</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Fermi%C3%B3" title="Fermió">Fermions</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Quark" title="Quark">Quarks</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Quark_amunt" class="mw-redirect" title="Quark amunt">u</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Quark_avall" class="mw-redirect" title="Quark avall">d</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Quark_encant" class="mw-redirect" title="Quark encant">c</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Quark_estrany" class="mw-redirect" title="Quark estrany">s</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Quark_cim" class="mw-redirect" title="Quark cim">t</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Quark_fons" class="mw-redirect" title="Quark fons">b</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Antiquark" title="Antiquark">Antiquarks</a></div></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Antiquark_amunt" class="mw-redirect" title="Antiquark amunt"><span style="text-decoration:overline;">u</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Antiquark_avall" class="mw-redirect" title="Antiquark avall"><span style="text-decoration:overline;">d</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Antiquark_encant" class="mw-redirect" title="Antiquark encant"><span style="text-decoration:overline;">c</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Antiquark_estrany" class="mw-redirect" title="Antiquark estrany"><span style="text-decoration:overline;">s</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Antiquark_cim" class="mw-redirect" title="Antiquark cim"><span style="text-decoration:overline;">t</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Antiquark_fons" class="mw-redirect" title="Antiquark fons"><span style="text-decoration:overline;">b</span></a></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Lept%C3%B3" title="Leptó">Leptons</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Electr%C3%B3" title="Electró">e<sup>-</sup></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Mu%C3%B3" title="Muó">μ<sup>-</sup></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Tau%C3%B3" class="mw-redirect" title="Tauó">τ<sup>-</sup></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Neutr%C3%AD" title="Neutrí">ν</a> <b>(</b><a href="/wiki/Neutr%C3%AD_electr%C3%B2nic" title="Neutrí electrònic">ν<sub>e</sub></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Neutr%C3%AD_mu%C3%B2nic" title="Neutrí muònic">ν<sub>μ</sub></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Neutr%C3%AD_tau%C3%B2nic" class="mw-redirect" title="Neutrí tauònic">ν<sub>τ</sub></a><b>)</b></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Antilept%C3%B3" class="mw-redirect" title="Antileptó">Antileptons</a></div></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Positr%C3%B3" title="Positró">e<sup>+</sup></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Antimu%C3%B3" title="Antimuó">μ<sup>+</sup></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Antitau%C3%B3" class="mw-redirect" title="Antitauó">τ<sup>+</sup></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Antineutr%C3%AD" title="Antineutrí"><span style="text-decoration:overline;">ν</span></a> <b>(</b><a href="/wiki/Antineutr%C3%AD_electr%C3%B2nic" class="mw-redirect" title="Antineutrí electrònic"><span style="text-decoration:overline;">ν</span><sub>e</sub></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Antineutr%C3%AD_mu%C3%B2nic" class="mw-redirect" title="Antineutrí muònic"><span style="text-decoration:overline;">ν</span><sub>μ</sub></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Antineutr%C3%AD_tau%C3%B2nic" class="mw-redirect" title="Antineutrí tauònic"><span style="text-decoration:overline;">ν</span><sub>τ</sub></a><b>)</b></div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Bos%C3%B3" title="Bosó">Bosons</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Bos%C3%B3_de_gauge" title="Bosó de gauge">Gauge</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Fot%C3%B3" title="Fotó">γ</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Glu%C3%B3" title="Gluó">g</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Bos%C3%B3_W" class="mw-redirect" title="Bosó W">W<sup>±</sup></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Bos%C3%B3_Z" class="mw-redirect" title="Bosó Z">Z</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Bos%C3%B3_E(38)" title="Bosó E(38)">E<sub>38</sub></a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Bos%C3%B3_escalar" title="Bosó escalar">Escalar</a></div></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Bos%C3%B3_de_Higgs" title="Bosó de Higgs">H<sup>0</sup></a></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;">Altres</div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Camp_fantasma" title="Camp fantasma">Fantasmes</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Part%C3%ADcula_hipot%C3%A8tica" title="Partícula hipotètica">Hipotètiques</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Supercompany" title="Supercompany">Supercompanyes</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Sfermi%C3%B3" title="Sfermió">Sfermions</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Squark" title="Squark">Squarks</a></div></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><small><a href="/wiki/Quark_samunt" class="mw-redirect" title="Quark samunt"><span style="font-size:120%;">u&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32;<a href="/wiki/Quark_savall" class="mw-redirect" title="Quark savall"><span style="font-size:120%;">d&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Quark_sencant" class="mw-redirect" title="Quark sencant"><span style="font-size:120%;">c&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Quark_sestrany" class="mw-redirect" title="Quark sestrany"><span style="font-size:120%;">s&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Quark_sim" class="mw-redirect" title="Quark sim"><span style="font-size:120%;">t&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Quark_sfons" class="mw-redirect" title="Quark sfons"><span style="font-size:120%;">b&#x342;</span></a></small></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Slept%C3%B3" title="Sleptó">Sleptons</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><small><a href="/wiki/Selectr%C3%B3_(part%C3%ADcula)" class="mw-redirect" title="Selectró (partícula)"><span style="font-size:120%;">e&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Smu%C3%B3" class="mw-redirect" title="Smuó"><span style="font-size:120%;">μ&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Stau%C3%B3" class="mw-redirect" title="Stauó"><span style="font-size:120%;">τ&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Sneutr%C3%AD" class="mw-redirect" title="Sneutrí"><span style="font-size:120%;">ν&#x342;</span></a> (<a href="/wiki/Sneutr%C3%AD_electr%C3%B2nic" class="mw-redirect" title="Sneutrí electrònic"><span style="font-size:120%;">ν&#x342;</span><sub>e</sub></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Sneutr%C3%AD_mu%C3%B2nic" class="mw-redirect" title="Sneutrí muònic"><span style="font-size:120%;">ν&#x342;</span><sub>μ</sub></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Sneutr%C3%AD_tau%C3%B2nic" class="mw-redirect" title="Sneutrí tauònic"><span style="font-size:120%;">ν&#x342;</span><sub>τ</sub></a>)</small></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Gaug%C3%AD" title="Gaugí">Gaugins</a></div></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><small><a href="/wiki/Be%C3%AD" title="Beí"><span style="font-size:120%;">B&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Fot%C3%AD" title="Fotí"><span style="font-size:120%;">γ&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Glu%C3%AD" title="Gluí"><span style="font-size:120%;">g&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Gravit%C3%AD" title="Gravití"><span style="font-size:120%;">G&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/We%C3%AD" title="Weí"><span style="font-size:120%;">W&#x342;</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Zet%C3%AD" title="Zetí"><span style="font-size:120%;">Z&#x342;</span></a></small></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;">Altres</div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Ax%C3%AD" title="Axí">Axí</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Carregu%C3%AD" title="Carreguí">Carreguí</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Higgs%C3%AD" title="Higgsí">Higgsí</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Neutral%C3%AD" title="Neutralí">Neutralí</a></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;">Altres</div></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Axi%C3%B3" title="Axió">A<sup>0</sup></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Dilat%C3%B3" title="Dilató">D</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Fermi%C3%B3_de_Majorana" title="Fermió de Majorana">Fermió de Majorana</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Fot%C3%B3_magn%C3%A8tic" title="Fotó magnètic">Fotó magnètic</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Gravit%C3%B3" title="Gravitó">G</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Gravifot%C3%B3" title="Gravifotó">Gravifotó</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Inflat%C3%B3" title="Inflató">Inflató</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Leptoquark" title="Leptoquark">Leptoquark</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Major%C3%B3" title="Majoró">J</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Monopol_magn%C3%A8tic" title="Monopol magnètic">m</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Neutr%C3%AD_est%C3%A8ril" title="Neutrí estèril">neutrí estèril</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Pre%C3%B3" title="Preó">Preó</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Taqui%C3%B3" title="Taquió">Taquió</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Bos%C3%B3_X" class="mw-redirect" title="Bosó X">X</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Bos%C3%B3_Y" class="mw-redirect" title="Bosó Y">Y</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Bos%C3%B3_W%27" class="mw-redirect" title="Bosó W&#39;">W'</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Bos%C3%B3_Z%27" class="mw-redirect" title="Bosó Z&#39;">Z'</a></div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Part%C3%ADcula_composta" title="Partícula composta">Compostes</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Hadr%C3%B3" title="Hadró">Hadrons</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Bari%C3%B3" title="Barió">Barions</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Nucle%C3%B3" title="Nucleó">Nucleons</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Prot%C3%B3" title="Protó">p</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Neutr%C3%B3" title="Neutró">n</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Antiprot%C3%B3" title="Antiprotó"><span style="text-decoration:overline;">p</span></a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Antineutr%C3%B3" title="Antineutró"><span style="text-decoration:overline;">n</span></a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Hiper%C3%B3" title="Hiperó">Hiperons</a></div></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Bari%C3%B3_Delta" title="Barió Delta">Δ</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Lambda_(bari%C3%B3)" title="Lambda (barió)">Λ</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/w/index.php?title=Bari%C3%B3_Sigma&amp;action=edit&amp;redlink=1" class="new" title="Barió Sigma (encara no existeix)">Σ</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/w/index.php?title=Bari%C3%B3_Ksi&amp;action=edit&amp;redlink=1" class="new" title="Barió Ksi (encara no existeix)">Ξ</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/w/index.php?title=Bari%C3%B3_Omega&amp;action=edit&amp;redlink=1" class="new" title="Barió Omega (encara no existeix)">Ω</a></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Mes%C3%B3" title="Mesó">Mesons</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;background:transparent;"><div style="padding:0em 0.25em"><a href="/wiki/Pi%C3%B3" title="Pió">Pió</a> (π)<span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Mes%C3%B3_rho" title="Mesó rho">Mesó rho</a> (ρ)<span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Mesons_eta_i_eta_prima" title="Mesons eta i eta prima">Mesons eta i eta prima</a> (η) i (η')<span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Mes%C3%B3_fi" title="Mesó fi">Mesó fi</a> (φ)<span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Mes%C3%B3_omega" title="Mesó omega">Mesó omega</a> (ω)<span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Mes%C3%B3_psi%C3%B3" title="Mesó psió">Mesó psió</a> (J/ψ)<span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Mes%C3%B3_%C3%ADpsilon" title="Mesó ípsilon">Mesó ípsilon</a> (ϒ)<span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Mes%C3%B3_theta" title="Mesó theta">Mesó theta</a> (θ)<span style="font-weight:bold;">&#160;·</span>&#32; <a href="/w/index.php?title=Mes%C3%B3_K&amp;action=edit&amp;redlink=1" class="new" title="Mesó K (encara no existeix)">Mesó K</a> (K)<span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Mes%C3%B3_B" title="Mesó B">Mesó B</a> (B)<span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Mes%C3%B3_D" title="Mesó D">Mesó D</a> (D)<span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Mes%C3%B3_T" title="Mesó T">Mesó T</a> (T)<span style="font-weight:bold;">&#160;·</span>&#32;<a href="/wiki/Quarkonium" title="Quarkonium">Quarkonium</a></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;">Altres</div></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Nucli_at%C3%B2mic" title="Nucli atòmic">Nucli atòmic</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/%C3%80tom" title="Àtom">Àtom</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Diquark" title="Diquark">Diquark</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/%C3%80tom_ex%C3%B2tic" title="Àtom exòtic">Àtom exòtic</a> <b>(</b> <a href="/wiki/Positroni" title="Positroni">Positroni</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Muoni" title="Muoni">Muoni</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Tautoni" title="Tautoni">Tautoni</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Oni_(part%C3%ADcula)" class="mw-redirect" title="Oni (partícula)">Oni</a> <b>)</b><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Super%C3%A0tom" title="Superàtom">Superàtoms</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Mol%C3%A8cula" title="Molècula">Molècula</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Part%C3%ADcula_hipot%C3%A8tica" title="Partícula hipotètica">Hipotètiques</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;font-weight:normal;"><div style="padding:0em 0.75em;"><a href="/wiki/Hadr%C3%B3_ex%C3%B2tic" title="Hadró exòtic">Hadrons exòtics</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Bari%C3%B3_ex%C3%B2tic" title="Barió exòtic">Barions exòtics</a></div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Dibari%C3%B3" class="mw-redirect" title="Dibarió">Dibarió</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Pentaquark" title="Pentaquark">Pentaquark</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Skyrmi%C3%B3" title="Skyrmió">Skyrmió</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;"><div style="padding:0em 0.75em;"><a href="/wiki/Mes%C3%B3_ex%C3%B2tic" title="Mesó exòtic">Mesons exòtics</a></div></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Bola_de_gluons" title="Bola de gluons">Bola de gluons</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Tetraquark" title="Tetraquark">Tetraquark</a></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;padding-left:0em;padding-right:0em;font-weight:normal;"><div style="padding:0em 0.75em;">Altres</div></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;background:transparent;"><div style="padding:0em 0.25em"><a href="/wiki/Mol%C3%A8cula_mes%C3%B2nica" title="Molècula mesònica">Molècula mesònica</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Pomer%C3%B3" title="Pomeró">Pomeró</a></div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Quasipart%C3%ADcula" title="Quasipartícula">Quasipartícules</a></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/w/index.php?title=Solit%C3%B3_de_Davydov&amp;action=edit&amp;redlink=1" class="new" title="Solitó de Davydov (encara no existeix)">Solitó de Davydov</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Excit%C3%B3" title="Excitó">Excitó</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Hol%C3%B3" title="Holó">Holó</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Magn%C3%B3" title="Magnó">Magnó</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Fon%C3%B3" title="Fonó">Fonó</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/w/index.php?title=Plasmar%C3%B3&amp;action=edit&amp;redlink=1" class="new" title="Plasmaró (encara no existeix)">Plasmaró</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Plasm%C3%B3" title="Plasmó">Plasmó</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/w/index.php?title=Polarit%C3%B3&amp;action=edit&amp;redlink=1" class="new" title="Polaritó (encara no existeix)">Polaritó</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Polar%C3%B3" title="Polaró">Polaró</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Rot%C3%B3" title="Rotó">Rotó</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/w/index.php?title=Tri%C3%B3_(f%C3%ADsica)&amp;action=edit&amp;redlink=1" class="new" title="Trió (física) (encara no existeix)">Trió</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Descartades</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;background:transparent;"><div style="padding:0em 0.25em"><a href="/wiki/Part%C3%B3" title="Partó">Partó</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Llistes</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"><a href="/wiki/Llista_de_part%C3%ADcules" title="Llista de partícules">Llista de partícules</a><span style="font-weight:bold;">&#160;·</span>&#32; <a href="/wiki/Cronologia_de_la_f%C3%ADsica_de_part%C3%ADcules" title="Cronologia de la física de partícules">Cronologia de la física de partícules</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a 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