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vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">amaga</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navegació </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Portada" title="Visiteu la pàgina principal [z]" accesskey="z"><span>Portada</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Especial:Article_aleatori" title="Carrega una pàgina a l’atzar [x]" accesskey="x"><span>Article a l'atzar</span></a></li><li id="n-Articles-de-qualitat" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Articles_de_qualitat"><span>Articles de qualitat</span></a></li> </ul> </div> </div> <div id="p-Comunitat" class="vector-menu mw-portlet mw-portlet-Comunitat" > <div class="vector-menu-heading"> Comunitat </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-portal" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Portal" title="Sobre el projecte, què podeu fer, on trobareu les coses"><span>Portal viquipedista</span></a></li><li id="n-Agenda-d'actes" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Trobades"><span>Agenda d'actes</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Especial:Canvis_recents" title="Una llista dels canvis recents al wiki [r]" accesskey="r"><span>Canvis recents</span></a></li><li id="n-La-taverna" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:La_taverna"><span>La taverna</span></a></li><li id="n-contactpage" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Contacte"><span>Contacte</span></a></li><li id="n-Xat" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Canals_IRC"><span>Xat</span></a></li><li id="n-help" class="mw-list-item"><a href="/wiki/Viquip%C3%A8dia:Ajuda" title="El lloc per a saber més coses"><span>Ajuda</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Portada" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Viquipèdia" src="/static/images/mobile/copyright/wikipedia-wordmark-ca.svg" style="width: 7.5em; height: 1.4375em;"> <img class="mw-logo-tagline" alt="l'Enciclopèdia Lliure" src="/static/images/mobile/copyright/wikipedia-tagline-ca.svg" width="120" height="14" style="width: 7.5em; height: 0.875em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Especial:Cerca" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet 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cdx-search-input__end-button">Cerca</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Eines personals"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Aparença"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Aparença" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-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-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Aparença</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_ca.wikipedia.org&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&returnto=Quark+u&returntoquery=oldid%3D34117299" 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&returnto=Quark+u&returntoquery=oldid%3D34117299" 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 vector-user-menu-logged-out" title="Més opcions" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Eines personals" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-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-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Eines personals</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Menú d'usuari" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_ca.wikipedia.org&uselang=ca"><span>Donatius</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Especial:Crea_compte&returnto=Quark+u&returntoquery=oldid%3D34117299" title="Us animem a crear un compte i iniciar una sessió, encara que no és obligatori"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Crea un compte</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Especial:Registre_i_entrada&returnto=Quark+u&returntoquery=oldid%3D34117299" title="Us animem a registrar-vos, però no és obligatori [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Inicia la sessió</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet 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'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'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"></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> </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">Quark u</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 55 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-55" 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">55 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/Opkwark" title="Opkwark - afrikaans" lang="af" hreflang="af" data-title="Opkwark" 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/%D9%83%D9%88%D8%A7%D8%B1%D9%83_%D8%B9%D9%84%D9%88%D9%8A" title="كوارك علوي - àrab" lang="ar" hreflang="ar" data-title="كوارك علوي" data-language-autonym="العربية" data-language-local-name="àrab" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Quark_enriba" title="Quark enriba - asturià" lang="ast" hreflang="ast" data-title="Quark enriba" data-language-autonym="Asturianu" data-language-local-name="asturià" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/U-%D0%BA%D0%B2%D0%B0%D1%80%D0%BA" title="U-кварк - belarús" lang="be" hreflang="be" data-title="U-кварк" 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%93%D0%BE%D1%80%D0%B5%D0%BD_%D0%BA%D0%B2%D0%B0%D1%80%D0%BA" title="Горен кварк - búlgar" lang="bg" hreflang="bg" data-title="Горен кварк" data-language-autonym="Български" data-language-local-name="búlgar" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%86%E0%A6%AA_%E0%A6%95%E0%A7%8B%E0%A6%AF%E0%A6%BC%E0%A6%BE%E0%A6%B0%E0%A7%8D%E0%A6%95" title="আপ কোয়ার্ক - bengalí" lang="bn" hreflang="bn" data-title="আপ কোয়ার্ক" data-language-autonym="বাংলা" data-language-local-name="bengalí" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Kvark_u" title="Kvark u - txec" lang="cs" hreflang="cs" data-title="Kvark u" 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/Up-kvark" title="Up-kvark - danès" lang="da" hreflang="da" data-title="Up-kvark" data-language-autonym="Dansk" data-language-local-name="danès" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de badge-Q70894304 mw-list-item" title=""><a href="https://de.wikipedia.org/wiki/Up-Quark" title="Up-Quark - alemany" lang="de" hreflang="de" data-title="Up-Quark" data-language-autonym="Deutsch" data-language-local-name="alemany" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Up_quark" title="Up quark - anglès" lang="en" hreflang="en" data-title="Up quark" 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/U-kvarko" title="U-kvarko - esperanto" lang="eo" hreflang="eo" data-title="U-kvarko" 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/Cuark_arriba" title="Cuark arriba - espanyol" lang="es" hreflang="es" data-title="Cuark arriba" data-language-autonym="Español" data-language-local-name="espanyol" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/U-kvark" title="U-kvark - estonià" lang="et" hreflang="et" data-title="U-kvark" data-language-autonym="Eesti" data-language-local-name="estonià" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Gorantz_quark" title="Gorantz quark - basc" lang="eu" hreflang="eu" data-title="Gorantz quark" 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/%DA%A9%D9%88%D8%A7%D8%B1%DA%A9_%D8%A8%D8%A7%D9%84%D8%A7" title="کوارک بالا - persa" lang="fa" hreflang="fa" data-title="کوارک بالا" 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/Yl%C3%B6skvarkki" title="Ylöskvarkki - finès" lang="fi" hreflang="fi" data-title="Ylöskvarkki" 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/Quark_up" title="Quark up - francès" lang="fr" hreflang="fr" data-title="Quark up" 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/Uaschuarc" title="Uaschuarc - irlandès" lang="ga" hreflang="ga" data-title="Uaschuarc" 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%A7%D7%95%D7%95%D7%90%D7%A8%D7%A7_%D7%9C%D7%9E%D7%A2%D7%9C%D7%94" title="קווארק למעלה - hebreu" lang="he" hreflang="he" data-title="קווארק למעלה" 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%85%E0%A4%AA_%E0%A4%95%E0%A5%8D%E0%A4%B5%E0%A4%BE%E0%A4%B0%E0%A5%8D%E0%A4%95" title="अप क्वार्क - hindi" lang="hi" hreflang="hi" data-title="अप क्वार्क" 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/Gornji_kvark" title="Gornji kvark - croat" lang="hr" hreflang="hr" data-title="Gornji kvark" 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/Up_kvark" title="Up kvark - hongarès" lang="hu" hreflang="hu" data-title="Up kvark" 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/U-%D6%84%D5%BE%D5%A1%D6%80%D5%AF" title="U-քվարկ - armeni" lang="hy" hreflang="hy" data-title="U-քվարկ" 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/Kuark_up" title="Kuark up - indonesi" lang="id" hreflang="id" data-title="Kuark up" 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/Quark_up" title="Quark up - italià" lang="it" hreflang="it" data-title="Quark up" 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%A2%E3%83%83%E3%83%97%E3%82%AF%E3%82%A9%E3%83%BC%E3%82%AF" title="アップクォーク - japonès" lang="ja" hreflang="ja" data-title="アップクォーク" 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/U-%E1%83%99%E1%83%95%E1%83%90%E1%83%A0%E1%83%99%E1%83%98" title="U-კვარკი - georgià" lang="ka" hreflang="ka" data-title="U-კვარკი" 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/%EC%9C%84_%EC%BF%BC%ED%81%AC" title="위 쿼크 - coreà" lang="ko" hreflang="ko" data-title="위 쿼크" 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/Quarcum_sursum" title="Quarcum sursum - llatí" lang="la" hreflang="la" data-title="Quarcum sursum" data-language-autonym="Latina" data-language-local-name="llatí" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Kylantysis_kvarkas" title="Kylantysis kvarkas - lituà" lang="lt" hreflang="lt" data-title="Kylantysis kvarkas" 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/U_kvarks" title="U kvarks - letó" lang="lv" hreflang="lv" data-title="U kvarks" 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%93%D0%BE%D1%80%D0%B5%D0%BD_%D0%BA%D0%B2%D0%B0%D1%80%D0%BA" title="Горен кварк - macedoni" lang="mk" hreflang="mk" data-title="Горен кварк" 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/Kuark_naik" title="Kuark naik - malai" lang="ms" hreflang="ms" data-title="Kuark naik" 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-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Upquark" title="Upquark - neerlandès" lang="nl" hreflang="nl" data-title="Upquark" 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/Oppkvark" title="Oppkvark - noruec nynorsk" lang="nn" hreflang="nn" data-title="Oppkvark" 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/Oppkvark" title="Oppkvark - noruec bokmål" lang="nb" hreflang="nb" data-title="Oppkvark" 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/Quark_up" title="Quark up - occità" lang="oc" hreflang="oc" data-title="Quark up" data-language-autonym="Occitan" data-language-local-name="occità" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Kwark_g%C3%B3rny" title="Kwark górny - polonès" lang="pl" hreflang="pl" data-title="Kwark górny" 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/%D8%A7%D9%BE_%DA%A9%D9%88%D8%A7%D8%B1%DA%A9" title="اپ کوارک - Western Punjabi" lang="pnb" hreflang="pnb" data-title="اپ کوارک" 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/Quark_up" title="Quark up - portuguès" lang="pt" hreflang="pt" data-title="Quark up" 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/U-%D0%BA%D0%B2%D0%B0%D1%80%D0%BA" title="U-кварк - rus" lang="ru" hreflang="ru" data-title="U-кварк" 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/Gornji_kvark" title="Gornji kvark - serbocroat" lang="sh" hreflang="sh" data-title="Gornji kvark" 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/Up_quark" title="Up quark - Simple English" lang="en-simple" hreflang="en-simple" data-title="Up quark" 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/Kvark_u" title="Kvark u - eslovac" lang="sk" hreflang="sk" data-title="Kvark u" 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/Kvark_u" title="Kvark u - eslovè" lang="sl" hreflang="sl" data-title="Kvark u" 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/Gornji_kvark" title="Gornji kvark - serbi" lang="sr" hreflang="sr" data-title="Gornji kvark" 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-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%AE%E0%AF%87%E0%AE%B2%E0%AF%8D_%E0%AE%95%E0%AF%81%E0%AE%B5%E0%AE%BE%E0%AE%B0%E0%AF%8D%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AF%81" title="மேல் குவார்க்கு - tàmil" lang="ta" hreflang="ta" data-title="மேல் குவார்க்கு" data-language-autonym="தமிழ்" data-language-local-name="tàmil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Taas_na_quark" title="Taas na quark - tagal" lang="tl" hreflang="tl" data-title="Taas na quark" 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/Yukar%C4%B1_kuark" title="Yukarı kuark - turc" lang="tr" hreflang="tr" data-title="Yukarı kuark" data-language-autonym="Türkçe" data-language-local-name="turc" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/U-kvark" title="U-kvark - tàtar" lang="tt" hreflang="tt" data-title="U-kvark" data-language-autonym="Татарча / tatarça" data-language-local-name="tàtar" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/U-%D0%BA%D0%B2%D0%B0%D1%80%D0%BA" title="U-кварк - ucraïnès" lang="uk" hreflang="uk" data-title="U-кварк" 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/Quark_l%C3%AAn" title="Quark lên - vietnamita" lang="vi" hreflang="vi" data-title="Quark lên" 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/Igbaw_nga_quark" title="Igbaw nga quark - waray" lang="war" hreflang="war" data-title="Igbaw nga quark" 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/%E4%B8%8A%E5%A4%B8%E5%85%8B" title="上夸克 - xinès" lang="zh" hreflang="zh" data-title="上夸克" 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/%E4%B8%8A%E5%A4%B8%E5%85%8B" title="上夸克 - cantonès" lang="yue" hreflang="yue" data-title="上夸克" 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/Q6732#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/Quark_u" title="Vegeu el contingut de la pàgina [c]" accesskey="c"><span>Pàgina</span></a></li><li id="ca-talk" class="new 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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=Quark_u&oldid=34117299" 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=Quark_u&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&page=Quark_u&id=34117299&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&url=https%3A%2F%2Fca.wikipedia.org%2Fw%2Findex.php%3Ftitle%3DQuark_u%26oldid%3D34117299"><span>Obtén una URL abreujada</span></a></li><li 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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/Q6732" title="Enllaç a l'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'enciclopèdia lliure</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><div class="cdx-message cdx-message--block cdx-message--warning mw-revision"><span class="cdx-message__icon"></span><div class="cdx-message__content"><div id="mw-revision-info">Aquesta és una <a href="/wiki/Ajuda:P%C3%A0gina_d%27historial" class="mw-redirect" title="Ajuda:Pàgina d'historial">versió anterior</a> d'aquesta pàgina, de data 20:01, 15 oct 2024 amb l'última edició de <a href="/wiki/Usuari:EVA3.0_(bot)" class="mw-redirect mw-userlink" title="Usuari:EVA3.0 (bot)" data-mw-revid="34117299"><bdi>EVA3.0 (bot)</bdi></a> <span class="mw-usertoollinks">(<a href="/wiki/Usuari_Discussi%C3%B3:EVA3.0_(bot)" class="mw-redirect mw-usertoollinks-talk" title="Usuari Discussió:EVA3.0 (bot)">discussió</a> | <a href="/wiki/Especial:Contribucions/EVA3.0_(bot)" class="mw-usertoollinks-contribs" title="Especial:Contribucions/EVA3.0 (bot)">contribucions</a>)</span>. Pot tenir inexactituds o contingut no apropiat no present en la <span class="plainlinks"><a class="external text" href="https://ca.wikipedia.org/wiki/Quark_u">versió actual</a></span>.</div><div id="mw-revision-nav">(<a href="/w/index.php?title=Quark_u&diff=prev&oldid=34117299" title="Quark u">dif.</a>) <a href="/w/index.php?title=Quark_u&direction=prev&oldid=34117299" title="Quark u">←la pròxima versió més antiga</a> | vegeu la versió actual (dif.) | Versió més nova → (dif.)</div></div></div></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>Quark u</caption><tbody><tr><td colspan="2" class="infobox-full-data infobox-data" style="text-align:center"><span typeof="mw:File"><a href="/w/index.php?title=Fitxer:Proton_quark_structure.svg&lang=ca" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Proton_quark_structure.svg/langca-300px-Proton_quark_structure.svg.png" decoding="async" width="300" height="300" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Proton_quark_structure.svg/langca-450px-Proton_quark_structure.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Proton_quark_structure.svg/langca-600px-Proton_quark_structure.svg.png 2x" data-file-width="800" data-file-height="800" /></a></span></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;">Classificació</th><td class="infobox-data"><a href="/wiki/Quark" title="Quark">quark</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/Q6732?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/Quark" title="Quark">Quark</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">Primera</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/Interacci%C3%B3_forta" class="mw-redirect" title="Interacció forta">Forta</a>, <a href="/wiki/Interacci%C3%B3_feble" class="mw-redirect" title="Interacció feble">Feble</a>, <a href="/wiki/For%C3%A7a_electromagn%C3%A8tica" title="Força electromagnètica">Electromagnètica</a>, <a href="/wiki/Gravetat" title="Gravetat">Gravitatòria</a></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;">Símbol</th><td class="infobox-data">u</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/Antiquark_amunt" class="mw-redirect" title="Antiquark amunt">Antiquark amunt</a> (<span style="text-decoration:overline;">u</span>)</td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;">Teorització</th><td class="infobox-data"><a href="/wiki/Murray_Gell-Mann" title="Murray Gell-Mann">Murray Gell-Mann</a> (<a href="/wiki/1964" title="1964">1964</a>)<br /><a href="/wiki/George_Zweig" title="George Zweig">George Zweig</a> (1964)</td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;">Descoberta</th><td class="infobox-data"><a href="/w/index.php?title=SLAC&action=edit&redlink=1" class="new" title="SLAC (encara no existeix)">SLAC</a> (1968)</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">1.7 – <span class="nowrap"><span data-sort-value="7000310000000000000♠"></span>3,1 <a href="/wiki/Electronvolt#Mass" class="mw-redirect" title="Electronvolt">MeV/<i>c</i><sup>2</sup></a></span><sup id="cite_ref-PDG2011_1-0" class="reference"><a href="#cite_note-PDG2011-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/w/index.php?title=Desintegraci%C3%B3_de_part%C3%ADcules&action=edit&redlink=1" class="new" title="Desintegració de partícules (encara no existeix)">Desintegració en</a></th><td class="infobox-data">Estable o <a href="/wiki/Quark_avall" class="mw-redirect" title="Quark avall">Quark avall</a> + <a href="/wiki/Positr%C3%B3" title="Positró">Positró</a></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">+<span class="frac nowrap"><sup>2</sup>⁄<sub>3</sub></span> <a href="/wiki/C%C3%A0rrega_elemental" class="mw-redirect" title="Càrrega elemental">e</a></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">Blau, verd o vermell</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>⁄<sub>2</sub></span></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/Isoesp%C3%ADn_feble" title="Isoespín feble">Isoespín feble</a></th><td class="infobox-data"><span style="white-space:nowrap;"><a href="/wiki/Quiralitat_(f%C3%ADsica)" title="Quiralitat (física)">LH</a>: +<span class="frac nowrap"><sup>1</sup>⁄<sub>2</sub></span>, <a href="/wiki/Quiralitat_(f%C3%ADsica)" title="Quiralitat (física)">RH</a>: 0</span></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/Hiperc%C3%A0rrega_feble" title="Hipercàrrega feble">Hipercàrrega feble</a></th><td class="infobox-data"><span style="white-space:nowrap;"><a href="/wiki/Quiralitat_(f%C3%ADsica)" title="Quiralitat (física)">LH</a>: +<span class="frac nowrap"><sup>1</sup>⁄<sub>3</sub></span>, <a href="/wiki/Quiralitat_(f%C3%ADsica)" title="Quiralitat (física)">RH</a>: +<span class="frac nowrap"><sup>4</sup>⁄<sub>3</sub></span></span></td></tr><tr><th scope="row" class="infobox-label" style="text-align:left;background:#eeeeee;"><a href="/wiki/Paritat_(f%C3%ADsica)" title="Paritat (física)">Paritat</a></th><td class="infobox-data">1 <span class="penicon"><span class="mw-valign-baseline" typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q6732?uselang=ca#P1123" 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;">Número de partícula de Monte Carlo</th><td class="infobox-data">2 <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/Q6732?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>quark u</b> (<b>amunt</b> o <b>dalt</b>), en <a href="/wiki/Angl%C3%A8s" title="Anglès">anglès</a> <i><b>quark up</b></i>, representat internacionalment pel <a href="/wiki/S%C3%ADmbol" title="Símbol">símbol</a> <b>u</b>, és un dels sis <a href="/wiki/Sabor_(f%C3%ADsica)" title="Sabor (física)">aromes</a> o classes de <a href="/wiki/Quarks" class="mw-redirect" title="Quarks">quarks</a>.<sup id="cite_ref-jorba_2-0" class="reference"><a href="#cite_note-jorba-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> És un element fonamental de la <a href="/wiki/Mat%C3%A8ria" title="Matèria">matèria</a> (la major part de la qual, és a dir, tota, excepte les partícules mediadores de les quatre <a href="/wiki/Forces_fonamentals" title="Forces fonamentals">interaccions fonamentals</a>, està formada per quarks i <a href="/wiki/Leptons" class="mw-redirect" title="Leptons">leptons</a>), que es caracteritza per tenir una <a href="/wiki/C%C3%A0rrega_el%C3%A8ctrica" title="Càrrega elèctrica">càrrega elèctrica</a> de +2/3 de la <a href="/wiki/C%C3%A0rrega_el%C3%A8ctrica#càrrega_elèctrica_elemental" title="Càrrega elèctrica">càrrega elemental</a>, un <a href="/wiki/Isoesp%C3%ADn_feble" title="Isoespín feble">isoespín feble</a> (isoespín a la <a href="/wiki/For%C3%A7a_nuclear_feble" title="Força nuclear feble">força nuclear feble</a>) de +1/2 i una <a href="/wiki/Sabor_(f%C3%ADsica)" title="Sabor (física)">aroma</a> de +1/2. La seva <a href="/wiki/Massa" title="Massa">massa</a> podria estar entre 1,5 M<a href="/wiki/Electrovolt" class="mw-redirect" title="Electrovolt">eV</a>/<a href="/wiki/Velocitat_de_la_llum" title="Velocitat de la llum">c</a>² i 4,0 MeV/c², tot i que no es coneix del cert. La seva <a href="/wiki/Antipart%C3%ADcula" title="Antipartícula">antipartícula</a> és l'antiquark u, que té el color complementari (o anticolor) al quark u. </p><p>El quark <b>u</b>, i el <a href="/wiki/Quark_avall" class="mw-redirect" title="Quark avall">quark</a> <b>d</b>, són els dos quarks de primera generació, més estables que els altres i que es van mantenir més d'un <a href="/wiki/Segon" title="Segon">segon</a> després del <a href="/wiki/Big-bang" title="Big-bang">big-bang</a>, tot i que sempre agrupats en <a href="/wiki/Hadrons" class="mw-redirect" title="Hadrons">hadrons</a>, com per exemple <a href="/wiki/Protons" class="mw-redirect" title="Protons">protons</a> o <a href="/wiki/Neutrons" class="mw-redirect" title="Neutrons">neutrons</a>. Com els altres quarks, el quark u té <a href="/wiki/C%C3%A0rrega_de_color" title="Càrrega de color">càrrega de color</a>: "vermella", "verda" o "blava"; i és sensible a la <a href="/wiki/For%C3%A7a_nuclear_forta" title="Força nuclear forta">força nuclear forta</a> portada per <a href="/wiki/Gluons" class="mw-redirect" title="Gluons">gluons</a>. Un protó, per exemple, està format per dos quarks u i un d, mentre que un neutró ho és per un u i dos d. Les masses del protó i del neutró són semblants, cosa que fa que es comportin de manera essencialment igual davant de les forces nuclears fortes.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>La seva existència va ser postulada per primera vegada, i de forma independent, per <a href="/wiki/Murray_Gell-Mann" title="Murray Gell-Mann">Murray Gell-Mann</a> i <a href="/wiki/George_Zweig" title="George Zweig">George Zweig</a> l'any <a href="/wiki/1964" title="1964">1964</a>, en desenvolupar el model de quarks, amb aleshores només tres d'aquests. El <a href="/wiki/1967" title="1967">1967</a>, hom els va captar per primera vegada en experiments portats a terme al Centre de l'Accelerador <a href="/wiki/Lincoln_Near-Earth_Asteroid_Research" title="Lincoln Near-Earth Asteroid Research">Linear</a> de Stanford (en <a href="/wiki/Angl%C3%A8s" title="Anglès">anglès</a>, <i>Stanford Linear Accelerator Center</i>, SLAC), un laboratori de la <a href="/wiki/Universitat_Stanford" title="Universitat Stanford">Universitat Stanford</a>. </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=Quark_u&action=edit&section=1" title="Modifica la secció: Referències"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist {{#if: | references-column-count references-column-count-{{{col}}}" style="list-style-type: decimal;"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-PDG2011-1"><span class="mw-cite-backlink"><a href="#cite_ref-PDG2011_1-0">↑</a></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&action=edit&redlink=1" class="new" title="Particle Data Group (encara no existeix)">Particle Data Group</a>). «<a rel="nofollow" class="external text" href="http://pdg.lbl.gov/2011/tables/rpp2011-sum-quarks.pdf">PDGLive Particle Summary 'Quarks (u, d, s, c, b, t, b', t', Free)'</a>».  <a href="/w/index.php?title=Particle_Data_Group&action=edit&redlink=1" class="new" title="Particle Data Group (encara no existeix)">Particle Data Group</a>, 2011. [Consulta: 8 agost 2011].</span></span> </li> <li id="cite_note-jorba-2"><span class="mw-cite-backlink"><a href="#cite_ref-jorba_2-0">↑</a></span> <span class="reference-text"><i>Física nuclear I</i>, de Jaume Jorba i Bisbal, <a href="/wiki/ETSEIB" class="mw-redirect" title="ETSEIB">ETSEIB</a>, Edicions <a href="/wiki/Universitat_Polit%C3%A8cnica_de_Catalunya" title="Universitat Politècnica de Catalunya">UPC</a>, <a href="/wiki/2000" title="2000">2000</a>. <a href="/wiki/Especial:Fonts_bibliogr%C3%A0fiques/9788483013731" title="Especial:Fonts bibliogràfiques/9788483013731">ISBN 9788483013731</a> <style data-mw-deduplicate="TemplateStyles:r33711417">.mw-parser-output .languageicon{font-size:0.95em;color:#555;background-color:inherit}@media screen{html.skin-theme-clientpref-night .mw-parser-output .languageicon{background-color:inherit;color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .languageicon{background-color:inherit;color:white}}</style><span class="languageicon" title="En català">(català)</span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><i>Sobre el premi Nobel de Física 1999</i>, de Domènec Espriu, a <i>Els premis Nobel de l'any 1999: Cicle de conferències</i>, <a href="/wiki/Institut_d%27Estudis_Catalans" title="Institut d'Estudis Catalans">Institut d'Estudis Catalans</a>, <a href="/wiki/2003" title="2003">2003</a>. <a href="/wiki/Especial:Fonts_bibliogr%C3%A0fiques/9788472835221" title="Especial:Fonts bibliogràfiques/9788472835221">ISBN 9788472835221</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r33711417"><span class="languageicon" title="En català">(català)</span></span> </li> </ol></div></div> <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;"> ·</span>  <a href="/wiki/Quark_avall" class="mw-redirect" title="Quark avall">d</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Quark_encant" class="mw-redirect" title="Quark encant">c</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Quark_estrany" class="mw-redirect" title="Quark estrany">s</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Quark_cim" class="mw-redirect" title="Quark cim">t</a><span style="font-weight:bold;"> ·</span>  <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;"> ·</span>  <a href="/wiki/Antiquark_avall" class="mw-redirect" title="Antiquark avall"><span style="text-decoration:overline;">d</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Antiquark_encant" class="mw-redirect" title="Antiquark encant"><span style="text-decoration:overline;">c</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Antiquark_estrany" class="mw-redirect" title="Antiquark estrany"><span style="text-decoration:overline;">s</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Antiquark_cim" class="mw-redirect" title="Antiquark cim"><span style="text-decoration:overline;">t</span></a><span style="font-weight:bold;"> ·</span>  <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;"> ·</span>  <a href="/wiki/Mu%C3%B3" title="Muó">μ<sup>-</sup></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Tau%C3%B3" class="mw-redirect" title="Tauó">τ<sup>-</sup></a><span style="font-weight:bold;"> ·</span>  <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;"> ·</span>  <a href="/wiki/Neutr%C3%AD_mu%C3%B2nic" title="Neutrí muònic">ν<sub>μ</sub></a><span style="font-weight:bold;"> ·</span>  <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;"> ·</span>  <a href="/wiki/Antimu%C3%B3" title="Antimuó">μ<sup>+</sup></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Antitau%C3%B3" class="mw-redirect" title="Antitauó">τ<sup>+</sup></a><span style="font-weight:bold;"> ·</span>  <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;"> ·</span>  <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;"> ·</span>  <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;"> ·</span>  <a href="/wiki/Glu%C3%B3" title="Gluó">g</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Bos%C3%B3_W" class="mw-redirect" title="Bosó W">W<sup>±</sup></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Bos%C3%B3_Z" class="mw-redirect" title="Bosó Z">Z</a><span style="font-weight:bold;"> ·</span>  <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%;">u͂</span></a><span style="font-weight:bold;"> ·</span> <a href="/wiki/Quark_savall" class="mw-redirect" title="Quark savall"><span style="font-size:120%;">d͂</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Quark_sencant" class="mw-redirect" title="Quark sencant"><span style="font-size:120%;">c͂</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Quark_sestrany" class="mw-redirect" title="Quark sestrany"><span style="font-size:120%;">s͂</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Quark_sim" class="mw-redirect" title="Quark sim"><span style="font-size:120%;">t͂</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Quark_sfons" class="mw-redirect" title="Quark sfons"><span style="font-size:120%;">b͂</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%;">e͂</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Smu%C3%B3" class="mw-redirect" title="Smuó"><span style="font-size:120%;">μ͂</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Stau%C3%B3" class="mw-redirect" title="Stauó"><span style="font-size:120%;">τ͂</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Sneutr%C3%AD" class="mw-redirect" title="Sneutrí"><span style="font-size:120%;">ν͂</span></a> (<a href="/wiki/Sneutr%C3%AD_electr%C3%B2nic" class="mw-redirect" title="Sneutrí electrònic"><span style="font-size:120%;">ν͂</span><sub>e</sub></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Sneutr%C3%AD_mu%C3%B2nic" class="mw-redirect" title="Sneutrí muònic"><span style="font-size:120%;">ν͂</span><sub>μ</sub></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Sneutr%C3%AD_tau%C3%B2nic" class="mw-redirect" title="Sneutrí tauònic"><span style="font-size:120%;">ν͂</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%;">B͂</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Fot%C3%AD" title="Fotí"><span style="font-size:120%;">γ͂</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Glu%C3%AD" title="Gluí"><span style="font-size:120%;">g͂</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Gravit%C3%AD" title="Gravití"><span style="font-size:120%;">G͂</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/We%C3%AD" title="Weí"><span style="font-size:120%;">W͂</span></a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Zet%C3%AD" title="Zetí"><span style="font-size:120%;">Z͂</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;"> ·</span>  <a href="/wiki/Carregu%C3%AD" title="Carreguí">Carreguí</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Higgs%C3%AD" title="Higgsí">Higgsí</a><span style="font-weight:bold;"> ·</span>  <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;"> ·</span>  <a href="/wiki/Dilat%C3%B3" title="Dilató">D</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Fermi%C3%B3_de_Majorana" title="Fermió de Majorana">Fermió de Majorana</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Fot%C3%B3_magn%C3%A8tic" title="Fotó magnètic">Fotó magnètic</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Gravit%C3%B3" title="Gravitó">G</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Gravifot%C3%B3" title="Gravifotó">Gravifotó</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Inflat%C3%B3" title="Inflató">Inflató</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Leptoquark" title="Leptoquark">Leptoquark</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Major%C3%B3" title="Majoró">J</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Monopol_magn%C3%A8tic" title="Monopol magnètic">m</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Neutr%C3%AD_est%C3%A8ril" title="Neutrí estèril">neutrí estèril</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Pre%C3%B3" title="Preó">Preó</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Taqui%C3%B3" title="Taquió">Taquió</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Bos%C3%B3_X" class="mw-redirect" title="Bosó X">X</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Bos%C3%B3_Y" class="mw-redirect" title="Bosó Y">Y</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Bos%C3%B3_W%27" class="mw-redirect" title="Bosó W'">W'</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Bos%C3%B3_Z%27" class="mw-redirect" title="Bosó Z'">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;"> ·</span>  <a href="/wiki/Neutr%C3%B3" title="Neutró">n</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Antiprot%C3%B3" title="Antiprotó"><span style="text-decoration:overline;">p</span></a><span style="font-weight:bold;"> ·</span>  <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;"> ·</span>  <a href="/wiki/Lambda_(bari%C3%B3)" title="Lambda (barió)">Λ</a><span style="font-weight:bold;"> ·</span>  <a href="/w/index.php?title=Bari%C3%B3_Sigma&action=edit&redlink=1" class="new" title="Barió Sigma (encara no existeix)">Σ</a><span style="font-weight:bold;"> ·</span>  <a href="/w/index.php?title=Bari%C3%B3_Ksi&action=edit&redlink=1" class="new" title="Barió Ksi (encara no existeix)">Ξ</a><span style="font-weight:bold;"> ·</span>  <a href="/w/index.php?title=Bari%C3%B3_Omega&action=edit&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;"> ·</span>  <a href="/wiki/Mes%C3%B3_rho" title="Mesó rho">Mesó rho</a> (ρ)<span style="font-weight:bold;"> ·</span>  <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;"> ·</span>  <a href="/wiki/Mes%C3%B3_fi" title="Mesó fi">Mesó fi</a> (φ)<span style="font-weight:bold;"> ·</span>  <a href="/wiki/Mes%C3%B3_omega" title="Mesó omega">Mesó omega</a> (ω)<span style="font-weight:bold;"> ·</span>  <a href="/wiki/Mes%C3%B3_psi%C3%B3" title="Mesó psió">Mesó psió</a> (J/ψ)<span style="font-weight:bold;"> ·</span>  <a href="/wiki/Mes%C3%B3_%C3%ADpsilon" title="Mesó ípsilon">Mesó ípsilon</a> (ϒ)<span style="font-weight:bold;"> ·</span>  <a href="/wiki/Mes%C3%B3_theta" title="Mesó theta">Mesó theta</a> (θ)<span style="font-weight:bold;"> ·</span>  <a href="/w/index.php?title=Mes%C3%B3_K&action=edit&redlink=1" class="new" title="Mesó K (encara no existeix)">Mesó K</a> (K)<span style="font-weight:bold;"> ·</span>  <a href="/wiki/Mes%C3%B3_B" title="Mesó B">Mesó B</a> (B)<span style="font-weight:bold;"> ·</span>  <a href="/wiki/Mes%C3%B3_D" title="Mesó D">Mesó D</a> (D)<span style="font-weight:bold;"> ·</span>  <a href="/wiki/Mes%C3%B3_T" title="Mesó T">Mesó T</a> (T)<span style="font-weight:bold;"> ·</span> <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;"> ·</span>  <a href="/wiki/%C3%80tom" title="Àtom">Àtom</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Diquark" title="Diquark">Diquark</a><span style="font-weight:bold;"> ·</span>  <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;"> ·</span>  <a href="/wiki/Muoni" title="Muoni">Muoni</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Tautoni" title="Tautoni">Tautoni</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Oni_(part%C3%ADcula)" class="mw-redirect" title="Oni (partícula)">Oni</a> <b>)</b><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Super%C3%A0tom" title="Superàtom">Superàtoms</a><span style="font-weight:bold;"> ·</span>  <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;"> ·</span>  <a href="/wiki/Pentaquark" title="Pentaquark">Pentaquark</a><span style="font-weight:bold;"> ·</span>  <a href="/wiki/Skyrmi%C3%B3" 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