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The observable $\tau _1^b$ is equivalent to a thrust observable defined in the Breit frame. The data sample was collected at the HERA ep collider in the years 2003–2007 with center-of-mass energy of $\sqrt{s}=319\,\textrm{GeV} $, corresponding to an integrated luminosity of 351.1 $\textrm{pb}^{-1}$. Triple differential cross sections are provided as a function of $\tau _1^b$, event virtuality $Q^{2}$, and inelasticity y, in the kinematic region $Q^{2} >150\,\textrm{GeV}^2 $. Single differential cross sections are provided as a function of $\tau _1^b$ in a limited kinematic range. Double differential cross sections are measured, in contrast, integrated over $\tau _1^b$ and represent the inclusive neutral-current DIS cross section measured as a function of $Q^{2}$ and y. The data are compared to a variety of predictions and include long-standing and more recent Monte Carlo event generators, predictions in fixed-order perturbative QCD where calculations up to $\mathcal {O}(\alpha _\textrm{s} ^3)$ are available for $\tau _1^b$ or inclusive DIS, and resummed predictions at next-to-leading logarithmic accuracy matched to fixed order predictions at $\mathcal {O}(\alpha _\textrm{s} ^2)$. These comparisons reveal sensitivity of the 1-jettiness observable to QCD parton shower and resummation effects, as well as the modeling of hadronization and fragmentation. Within their range of validity, the fixed-order predictions provide a good description of the data. Monte Carlo event generators are predictive over the full measured range and hence their underlying models and parameters can be constrained by comparing to the presented data. The H1 Collaboration reports the first measurement of the 1-jettiness event shape observable $\tau_1^b$ in neutral-current deep-inelastic electron-proton scattering (DIS). The observable $\tau_1^b$ is equivalent to a thrust observable defined in the Breit frame. The data sample was collected at the HERA $ep$ collider in the years 2003-2007 with center-of-mass energy of $\sqrt{s}=319\,\text{GeV}$, corresponding to an integrated luminosity of $351.1\,\text{pb}^{-1}$. Triple differential cross sections are provided as a function of $\tau_1^b$, event virtuality $Q^2$, and inelasticity $y$, in the kinematic region $Q^2>150\,\text{GeV}^{2}$. Single differential cross section are provided as a function of $\tau_1^b$ in a limited kinematic range. Double differential cross sections are measured, in contrast, integrated over $\tau_1^b$ and represent the inclusive neutral-current DIS cross section measured as a function of $Q^2$ and $y$. The data are compared to a variety of predictions and include classical and modern Monte Carlo event generators, predictions in fixed-order perturbative QCD where calculations up to $\mathcal{O}(\alpha_s^3)$ are available for $\tau_1^b$ or inclusive DIS, and resummed predictions at next-to-leading logarithmic accuracy matched to fixed order predictions at $\mathcal{O}(\alpha_s^2)$. These comparisons reveal sensitivity of the 1-jettiness observable to QCD parton shower and resummation effects, as well as the modeling of hadronization and fragmentation. Within their range of validity, the fixed-order predictions provide a good description of the data. Monte Carlo event generators are predictive over the full measured range and hence their underlying models and parameters can be constrained by comparing to the presented data. Andreev, V.; Arratia, M.; Baghdasaryan, A.; Baty, A.; Begzsuren, K.; Bolz, A.; Boudry, V.; Brandt, G.; Britzger, D.; Buniatyan, A.; Bystritskaya, L.; Campbell, A.J.; Cantun Avila, K.B.; Cerny, K.; Chekelian, V.; Chen, Z.; Contreras, J.G.; Cvach, J.; Dainton, J.B.; Daum, K.; Deshpande, A.; Diaconu, C.; Drees, A.; Eckerlin, G.; Egli, S.; Elsen, E.; Favart, L.; Fedotov, A.; Feltesse, J.; Fleischer, M.; Fomenko, A.; Gal, C.; Gayler, J.; Goerlich, L.; Gogitidze, N.; Gouzevitch, M.; Grab, C.; Greenshaw, T.; Grindhammer, G.; Haidt, D.; Henderson, R.C. W.; Hessler, J.; Hladký, J.; Hoffmann, D.; Horisberger, R.; Hreus, T.; Huber, F.; Jacobs, P.M.; Jacquet, M.; Janssen, T.; Jung, A.W.; Katzy, J.; Kiesling, C.; Klein, M.; Kleinwort, C.; Klest, H.T.; Kluth, S.; Kogler, R.; Kostka, P.; Kretzschmar, J.; Krücker, D.; Krüger, K.; Landon, M.P. J.; Lange, W.; Laycock, P.; Lee, S.H.; Levonian, S.; Li, W.; Lin, J.; Lipka, K.; List, B.; List, J.; Lobodzinski, B.; Long, O.R.; Malinovski, E.; Martyn, H.-U.; Maxfield, S.J.; Mehta, A.; Meyer, A.B.; Meyer, J.; Mikocki, S.; Mikuni, V.M.; Mondal, M.M.; Müller, K.; Nachman, B.; Naumann, Th.; Newman, P.R.; Niebuhr, C.; Nowak, G.; Olsson, J.E.; Ozerov, D.; Park, S.; Pascaud, C.; Patel, G.D.; Perez, E.; Petrukhin, A.; Picuric, I.; Pitzl, D.; Polifka, R.; Preins, S.; Radescu, V.; Raicevic, N.; Ravdandorj, T.; Reichelt, D.; Reimer, P.; Rizvi, E.; Robmann, P.; Roosen, R.; Rostovtsev, A.; Rotaru, M.; Sankey, D.P. C.; Sauter, M.; Sauvan, E.; Schmitt, S.; Schmookler, B.A.; Schnell, G.; Schoeffel, L.; Schöning, A.; Schumann, S.; Sefkow, F.; Shushkevich, S.; Soloviev, Y.; Sopicki, P.; South, D.; Specka, A.; Steder, M.; Stella, B.; Stöcker, L.; Straumann, U.; Sun, C.; Sykora, T.; Thompson, P.D.; Acosta, F. 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The observable $\tau_1^b$ is equivalent to a thrust observable defined in the Breit frame. The data sample was collected at the HERA $ep$ collider in the years 2003-2007 with center-of-mass energy of $\sqrt{s}=319\,\text{GeV}$, corresponding to an integrated luminosity of $351.1\,\text{pb}^{-1}$. Triple differential cross sections are provided as a function of $\tau_1^b$, event virtuality $Q^2$, and inelasticity $y$, in the kinematic region $Q^2&gt;150\,\text{GeV}^{2}$. Single differential cross section are provided as a function of $\tau_1^b$ in a limited kinematic range. Double differential cross sections are measured, in contrast, integrated over $\tau_1^b$ and represent the inclusive neutral-current DIS cross section measured as a function of $Q^2$ and $y$. The data are compared to a variety of predictions and include classical and modern Monte Carlo event generators, predictions in fixed-order perturbative QCD where calculations up to $\mathcal{O}(\alpha_s^3)$ are available for $\tau_1^b$ or inclusive DIS, and resummed predictions at next-to-leading logarithmic accuracy matched to fixed order predictions at $\mathcal{O}(\alpha_s^2)$. These comparisons reveal sensitivity of the 1-jettiness observable to QCD parton shower and resummation effects, as well as the modeling of hadronization and fragmentation. Within their range of validity, the fixed-order predictions provide a good description of the data. Monte Carlo event generators are predictive over the full measured range and hence their underlying models and parameters can be constrained by comparing to the presented data." property="og:description" /> <meta content="Springer" property="og:description" /> <meta content="The H1 Collaboration reports the first measurement of the 1-jettiness event shape observable $\tau _1^b$ in neutral-current deep-inelastic electron-proton scattering (DIS). The observable $\tau _1^b$ is equivalent to a thrust observable defined in the Breit frame. The data sample was collected at the HERA ep collider in the years 2003–2007 with center-of-mass energy of $\sqrt{s}=319\,\textrm{GeV} $, corresponding to an integrated luminosity of 351.1 $\textrm{pb}^{-1}$. Triple differential cross sections are provided as a function of $\tau _1^b$, event virtuality $Q^{2}$, and inelasticity y, in the kinematic region $Q^{2} &gt;150\,\textrm{GeV}^2 $. Single differential cross sections are provided as a function of $\tau _1^b$ in a limited kinematic range. Double differential cross sections are measured, in contrast, integrated over $\tau _1^b$ and represent the inclusive neutral-current DIS cross section measured as a function of $Q^{2}$ and y. The data are compared to a variety of predictions and include long-standing and more recent Monte Carlo event generators, predictions in fixed-order perturbative QCD where calculations up to $\mathcal {O}(\alpha _\textrm{s} ^3)$ are available for $\tau _1^b$ or inclusive DIS, and resummed predictions at next-to-leading logarithmic accuracy matched to fixed order predictions at $\mathcal {O}(\alpha _\textrm{s} ^2)$. These comparisons reveal sensitivity of the 1-jettiness observable to QCD parton shower and resummation effects, as well as the modeling of hadronization and fragmentation. Within their range of validity, the fixed-order predictions provide a good description of the data. Monte Carlo event generators are predictive over the full measured range and hence their underlying models and parameters can be constrained by comparing to the presented data." property="og:description" /> <meta content="arXiv" property="og:description" />  <meta content="summary" name="twitter:card" /> <style></style> </head> <body class="CERN32Document32Server search" lang="en">  <div id="cern-toolbar"> <h1><a href="http://cern.ch" title="CERN">CERN <span>Accelerating science</span></a></h1> <ul> <li class="cern-accountlinks"><a class="cern-account" href="https://cds.cern.ch/youraccount/login?ln=en&referer=https%3A//cds.cern.ch/record/2892370%3Fln%3Den" title="Sign in to your CERN account">Sign in</a></li> <li><a class="cern-directory" href="http://cern.ch/directory" title="Search CERN resources and browse the directory">Directory</a></li> </ul> </div>   <div role="banner" class="clearfix" id="header"> <div class="header-inner inner"> <hgroup class="clearfix"> <h2 id="site-name"> <a rel="home" title="Home" href="/"><span>CERN Document Server</span></a> </h2> <h3 id="site-slogan">Access articles, reports and multimedia content in HEP</h3> </hgroup> <div role="navigation" id="main-navigation" class="cdsmenu"> <h2 class="element-invisible">Main menu</h2><ul class="links inline clearfix"> <li class="menu-386 first active-trail"><a class="active-trail" href="https://cds.cern.ch/?ln=en">Search</a></li> <li class="menu-444 "><a class="" title="" href="https://cds.cern.ch/submit?ln=en">Submit</a></li> <li class="menu-426 "><a class="" href="https://cds.cern.ch/help/?ln=en">Help</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=en">Personalize</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=en">Your alerts</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=en">Your baskets</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=en">Your comments</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=en">Your searches</a></li></ul></li> </ul> </div> </div> </div>  <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=en" class="navtrail">Home</a> > Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA </td> </tr> </table> </div> <div class="pagebody"><div class="pagebodystripemiddle"> <div class="detailedrecordbox"> <div class="detailedrecordtabs"> <div> <ul class="detailedrecordtabs"><li class="on first"><a href="/record/2892370/?ln=en">Information </a></li><li class=""><a href="/record/2892370/files?ln=en">Files </a></li></ul> <div id="tabsSpacer" style="clear:both;height:0px"> </div></div> </div> <div class="detailedrecordboxcontent"> <div class="top-left-folded"></div> <div class="top-right-folded"></div> <div class="inside">  <abbr class="unapi-id" title="2892370"></abbr> <style type="text/css">  </style> <table class="formatRecordTableFullWidth" > <tr> <td class="formatRecordHeader" style="background-image: url('https://cds.cern.ch/img/journals.jpg');" colspan="2">  Article </td> </tr> <script type="text/javascript"> $( document ).ready(function() { $('.showAuthor').on('click', function() { var author = '<p>' + $(this).data('name') + '</p>'; var affiliation = $(this).data('affiliation') + '</br>'; var contribution = $(this).data('contribution') + '</br>'; $.magnificPopup.open({ items: { src: '<div id="ovelary-mathjax" class="overlay-white oc-content overlay-white-500">' + author + affiliation + contribution + '</div>', type: 'inline' }, callbacks: { open: function() { var div = document.getElementById("overlay-mathjax") MathJax.Hub.Queue(["Typeset", MathJax.Hub, div]); }, } }) }) }); </script> <tr><td class="formatRecordLabel"> Report number </td><td style="padding-left:5px;"><a href="http://arxiv.org/abs/arXiv:2403.10109">arXiv:2403.10109</a> ; DESY-24-035</td></tr> <tr><td class="formatRecordLabel"> Title </td><td style="padding-left:5px;"><b>Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA</b></td></tr> <tr><td class="formatRecordLabel"><span style="white-space:nowrap;"> Author(s) </span> </td><td style="padding-left:5px;"> <script type="text/javascript"> function toggle_authors_visibility(){ var more = document.getElementById('more'); var link = document.getElementById('link'); var extension = document.getElementById('extension'); if (more.style.display=='none'){ more.style.display = ''; extension.style.display = 'none'; link.innerHTML = "Hide" } else { more.style.display = 'none'; extension.style.display = ''; link.innerHTML = "Show all 148 authors" } link.style.color = "rgb(204,0,0);" } function set_up(){ var extension = document.getElementById('extension'); extension.innerHTML = "H1 Collaboration "; toggle_authors_visibility(); } </script> <a name="show_hide" /><p id="more" style=""><a href="https://cds.cern.ch/search?f=author&p=Andreev%2C%20V.&ln=en">Andreev, V.</a> (Unlisted) ; <a href="https://cds.cern.ch/search?f=author&p=Arratia%2C%20M.&ln=en">Arratia, M.</a> (UC, Riverside) ; <a href="https://cds.cern.ch/search?f=author&p=Baghdasaryan%2C%20A.&ln=en">Baghdasaryan, A.</a> (Yerevan Phys. Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Baty%2C%20A.&ln=en">Baty, A.</a> (Illinois U., Chicago) ; <a href="https://cds.cern.ch/search?f=author&p=Begzsuren%2C%20K.&ln=en">Begzsuren, K.</a> (Ulaanbaatar U.) ; <a href="https://cds.cern.ch/search?f=author&p=Bolz%2C%20A.&ln=en">Bolz, A.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Boudry%2C%20V.&ln=en">Boudry, V.</a> (Ecole Polytechnique) ; <a href="https://cds.cern.ch/search?f=author&p=Brandt%2C%20G.&ln=en">Brandt, G.</a> (Gottingen U., II. Phys. Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Britzger%2C%20D.&ln=en">Britzger, D.</a> (Munich, Max Planck Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Buniatyan%2C%20A.&ln=en">Buniatyan, A.</a> (Birmingham U.) ; <a href="https://cds.cern.ch/search?f=author&p=Bystritskaya%2C%20L.&ln=en">Bystritskaya, L.</a> (Unlisted) ; <a href="https://cds.cern.ch/search?f=author&p=Campbell%2C%20A.J.&ln=en">Campbell, A.J.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Cantun%20Avila%2C%20K.B.&ln=en">Cantun Avila, K.B.</a> (Merida, IPN) ; <a href="https://cds.cern.ch/search?f=author&p=Cerny%2C%20K.&ln=en">Cerny, K.</a> (Palacky U.) ; <a href="https://cds.cern.ch/search?f=author&p=Chekelian%2C%20V.&ln=en">Chekelian, V.</a> (Munich, Max Planck Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Chen%2C%20Z.&ln=en">Chen, Z.</a> (Shandong U.) ; <a href="https://cds.cern.ch/search?f=author&p=Contreras%2C%20J.G.&ln=en">Contreras, J.G.</a> (Merida, IPN) ; <a href="https://cds.cern.ch/search?f=author&p=Cvach%2C%20J.&ln=en">Cvach, J.</a> (Prague, Inst. Phys.) ; <a href="https://cds.cern.ch/search?f=author&p=Dainton%2C%20J.B.&ln=en">Dainton, J.B.</a> (Liverpool U.) ; <a href="https://cds.cern.ch/search?f=author&p=Daum%2C%20K.&ln=en">Daum, K.</a> (Wuppertal U.) ; <a href="https://cds.cern.ch/search?f=author&p=Deshpande%2C%20A.&ln=en">Deshpande, A.</a> (Stony Brook U. ; Brookhaven) ; <a href="https://cds.cern.ch/search?f=author&p=Diaconu%2C%20C.&ln=en">Diaconu, C.</a> (Marseille, CPPM) ; <a href="https://cds.cern.ch/search?f=author&p=Drees%2C%20A.&ln=en">Drees, A.</a> (Stony Brook U.) ; <a href="https://cds.cern.ch/search?f=author&p=Eckerlin%2C%20G.&ln=en">Eckerlin, G.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Egli%2C%20S.&ln=en">Egli, S.</a> (PSI, Villigen) ; <a href="https://cds.cern.ch/search?f=author&p=Elsen%2C%20E.&ln=en">Elsen, E.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Favart%2C%20L.&ln=en">Favart, L.</a> (Brussels U., IIHE) ; <a href="https://cds.cern.ch/search?f=author&p=Fedotov%2C%20A.&ln=en">Fedotov, A.</a> (Unlisted) ; <a href="https://cds.cern.ch/search?f=author&p=Feltesse%2C%20J.&ln=en">Feltesse, J.</a> (IRFU, Saclay) ; <a href="https://cds.cern.ch/search?f=author&p=Fleischer%2C%20M.&ln=en">Fleischer, M.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Fomenko%2C%20A.&ln=en">Fomenko, A.</a> (Unlisted) ; <a href="https://cds.cern.ch/search?f=author&p=Gal%2C%20C.&ln=en">Gal, C.</a> (Stony Brook U.) ; <a href="https://cds.cern.ch/search?f=author&p=Gayler%2C%20J.&ln=en">Gayler, J.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Goerlich%2C%20L.&ln=en">Goerlich, L.</a> (Cracow, INP) ; <a href="https://cds.cern.ch/search?f=author&p=Gogitidze%2C%20N.&ln=en">Gogitidze, N.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Gouzevitch%2C%20M.&ln=en">Gouzevitch, M.</a> (Unlisted) ; <a href="https://cds.cern.ch/search?f=author&p=Grab%2C%20C.&ln=en">Grab, C.</a> (Zurich, ETH) ; <a href="https://cds.cern.ch/search?f=author&p=Greenshaw%2C%20T.&ln=en">Greenshaw, T.</a> (Liverpool U.) ; <a href="https://cds.cern.ch/search?f=author&p=Grindhammer%2C%20G.&ln=en">Grindhammer, G.</a> (Munich, Max Planck Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Haidt%2C%20D.&ln=en">Haidt, D.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Henderson%2C%20R.C.%20W.&ln=en">Henderson, R.C. W.</a> (Lancaster U.) ; <a href="https://cds.cern.ch/search?f=author&p=Hessler%2C%20J.&ln=en">Hessler, J.</a> (Munich, Max Planck Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Hladk%C3%BD%2C%20J.&ln=en">Hladký, J.</a> (Prague, Inst. Phys.) ; <a href="https://cds.cern.ch/search?f=author&p=Hoffmann%2C%20D.&ln=en">Hoffmann, D.</a> (Marseille, CPPM) ; <a href="https://cds.cern.ch/search?f=author&p=Horisberger%2C%20R.&ln=en">Horisberger, R.</a> (PSI, Villigen) ; <a href="https://cds.cern.ch/search?f=author&p=Hreus%2C%20T.&ln=en">Hreus, T.</a> (Zurich U.) ; <a href="https://cds.cern.ch/search?f=author&p=Huber%2C%20F.&ln=en">Huber, F.</a> (Heidelberg U.) ; <a href="https://cds.cern.ch/search?f=author&p=Jacobs%2C%20P.M.&ln=en">Jacobs, P.M.</a> (LBNL, Berkeley) ; <a href="https://cds.cern.ch/search?f=author&p=Jacquet%2C%20M.&ln=en">Jacquet, M.</a> (IJCLab, Orsay) ; <a href="https://cds.cern.ch/search?f=author&p=Janssen%2C%20T.&ln=en">Janssen, T.</a> (Brussels U., IIHE) ; <a href="https://cds.cern.ch/search?f=author&p=Jung%2C%20A.W.&ln=en">Jung, A.W.</a> (Purdue U.) ; <a href="https://cds.cern.ch/search?f=author&p=Katzy%2C%20J.&ln=en">Katzy, J.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Kiesling%2C%20C.&ln=en">Kiesling, C.</a> (Munich, Max Planck Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Klein%2C%20M.&ln=en">Klein, M.</a> (Liverpool U.) ; <a href="https://cds.cern.ch/search?f=author&p=Kleinwort%2C%20C.&ln=en">Kleinwort, C.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Klest%2C%20H.T.&ln=en">Klest, H.T.</a> (Stony Brook U. ; Argonne, PHY) ; <a href="https://cds.cern.ch/search?f=author&p=Kluth%2C%20S.&ln=en">Kluth, S.</a> (Munich, Max Planck Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Kogler%2C%20R.&ln=en">Kogler, R.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Kostka%2C%20P.&ln=en">Kostka, P.</a> (Liverpool U.) ; <a href="https://cds.cern.ch/search?f=author&p=Kretzschmar%2C%20J.&ln=en">Kretzschmar, J.</a> (Liverpool U.) ; <a href="https://cds.cern.ch/search?f=author&p=Kr%C3%BCcker%2C%20D.&ln=en">Krücker, D.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Kr%C3%BCger%2C%20K.&ln=en">Krüger, K.</a> (DESY) ; <a href="https://cds.cern.ch/search?f=author&p=Landon%2C%20M.P.%20J.&ln=en">Landon, M.P. 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Inst.) ; <a href="https://cds.cern.ch/search?f=author&p=Zomer%2C%20F.&ln=en">Zomer, F.</a> (IJCLab, Orsay)</p> <span id="extension"></span> <small><i><a id="link" href="#" onclick="toggle_authors_visibility()" style="color:rgb(204,0,0);"></a></i></small><script type="text/javascript">set_up()</script></td></tr> <tr><td class="formatRecordLabel"> Publication </td><td style="padding-left:5px;">2024-08-07</td></tr> <tr><td class="formatRecordLabel"> Imprint </td><td style="padding-left:5px;">2024-03-15</td></tr> <tr><td class="formatRecordLabel"> Number of pages </td><td style="padding-left:5px;">42</td></tr> <tr><td class="formatRecordLabel"> In: </td><td style="padding-left:5px;"><a href="http://dx.doi.org/10.1140/epjc/s10052-024-13115-8"><i>Eur. Phys. J. C</i> 84 (2024) 785</a> </a></td></tr> <tr><td class="formatRecordLabel"> DOI </td><td style="padding-left:5px;"><a href="http://dx.doi.org/10.1140/epjc/s10052-024-13115-8" title="DOI" target="_blank">10.1140/epjc/s10052-024-13115-8</a> <tr><td class="formatRecordLabel"> Subject category </td><td style="padding-left:5px;">nucl-ex ; Nuclear Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology ; hep-ex ; Particle Physics - Experiment</td></tr> <tr><td class="formatRecordLabel"> Accelerator/Facility, Experiment </td><td style="padding-left:5px;"><a href="https://cds.cern.ch/search?p=DESY%20HERA%20H1&f=693__a">DESY HERA H1</a></td></tr> <tr><td class="formatRecordLabel"> Abstract </td><td style="padding-left:5px;">The H1 Collaboration reports the first measurement of the 1-jettiness event shape observable $\tau_1^b$ in neutral-current deep-inelastic electron-proton scattering (DIS). The observable $\tau_1^b$ is equivalent to a thrust observable defined in the Breit frame. The data sample was collected at the HERA $ep$ collider in the years 2003-2007 with center-of-mass energy of $\sqrt{s}=319\,\text{GeV}$, corresponding to an integrated luminosity of $351.1\,\text{pb}^{-1}$. Triple differential cross sections are provided as a function of $\tau_1^b$, event virtuality $Q^2$, and inelasticity $y$, in the kinematic region $Q^2>150\,\text{GeV}^{2}$. Single differential cross section are provided as a function of $\tau_1^b$ in a limited kinematic range. Double differential cross sections are measured, in contrast, integrated over $\tau_1^b$ and represent the inclusive neutral-current DIS cross section measured as a function of $Q^2$ and $y$. The data are compared to a variety of predictions and include classical and modern Monte Carlo event generators, predictions in fixed-order perturbative QCD where calculations up to $\mathcal{O}(\alpha_s^3)$ are available for $\tau_1^b$ or inclusive DIS, and resummed predictions at next-to-leading logarithmic accuracy matched to fixed order predictions at $\mathcal{O}(\alpha_s^2)$. These comparisons reveal sensitivity of the 1-jettiness observable to QCD parton shower and resummation effects, as well as the modeling of hadronization and fragmentation. Within their range of validity, the fixed-order predictions provide a good description of the data. Monte Carlo event generators are predictive over the full measured range and hence their underlying models and parameters can be constrained by comparing to the presented data.</td></tr> <tr><td class="formatRecordLabel"> Copyright/License </td><td style="padding-left:5px;">preprint: (License: <a href="http://arxiv.org/licenses/nonexclusive-distrib/1.0/">arXiv nonexclusive-distrib 1.0</a>)<br/>publication: © 2024 The Author(s) (License: <a href="http://creativecommons.org/licenses/by/4.0/">CC-BY-4.0</a>), sponsored by <a href="http://scoap3.org">SCOAP³</a></td></tr> </table> <br/>Corresponding record in: <a href="http://inspirehep.net/record/2769150">Inspire</a> <small> </small> <br/> <br/><br/><div align="right"><div style="padding-bottom:2px;padding-top:30px;"><span class="moreinfo" style="margin-right:10px;"> <a href="" class="moreinfo">Back to search</a> </span></div></div> <div class="bottom-left-folded"><div class="recordlastmodifiedbox" style="position:relative;margin-left:1px"> Record created 2024-03-21, last modified 2024-08-16</div></div> <div class="bottom-right-folded" style="text-align:right;padding-bottom:2px;"> <span class="moreinfo" style="margin-right:10px;"><a href="/search?ln=en&p=recid%3A2892370&rm=wrd" class="moreinfo">Similar records</a></span></div> </div> </div> </div> <br/> <br /> <div class="detailedrecordminipanel"> <div class="top-left"></div><div class="top-right"></div> <div class="inside"> <div id="detailedrecordminipanelfile" style="width:33%;float:left;text-align:center;margin-top:0"> <div><small class="detailedRecordActions">Fulltext:</small> <br /><em>2403.10109</em> - <a href="/record/2892370/files/2403.10109.pdf"><img style="border:none" src="/img/file-icon-text-12x16.gif" alt="Download fulltext"/>PDF</a><br /><em>document</em> - <a href="/record/2892370/files/document.pdf"><img style="border:none" src="/img/file-icon-text-12x16.gif" alt="Download fulltext"/>PDF</a><br /></div> </div> <div id="detailedrecordminipanelreview" style="width:30%;float:left;text-align:center"> </div> <div id="detailedrecordminipanelactions" style="width:36%;float:right;text-align:right;"> <ul class="detailedrecordactions"> <li><a href="/yourbaskets/add?ln=en&recid=2892370">Add to personal basket</a></li> <li>Export as <a style="text-decoration:underline;font-weight:normal" href="/record/2892370/export/hx?ln=en">BibTeX</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2892370/export/hm?ln=en">MARC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2892370/export/xm?ln=en">MARCXML</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2892370/export/xd?ln=en">DC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2892370/export/xe?ln=en">EndNote</a>,  <a style="text-decoration:underline;font-weight:normal" href="/record/2892370/export/xn?ln=en">NLM</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/2892370/export/xw?ln=en">RefWorks</a> </li> </ul> <div style='padding-left: 13px;'>  <div id="bookmark"></div> <div id="bookmark_sciencewise"></div> <style type="text/css"> #bookmark_sciencewise, #bookmark {float: left;} #bookmark_sciencewise li {padding: 2px; width: 25px;} #bookmark_sciencewise ul, #bookmark ul {list-style-image: none;} </style> <script type="text/javascript" src="/js/jquery.bookmark.min.js"></script> <style type="text/css">@import "/css/jquery.bookmark.css";</style> <script type="text/javascript">// <![CDATA[ $.bookmark.addSite('sciencewise', 'ScienceWise.info', 'https://cds.cern.ch/img/sciencewise.png', 'en', 'bookmark', 'http://sciencewise.info/bookmarks/2403.1010/add'); $('#bookmark_sciencewise').bookmark({sites: ['sciencewise']}); $('#bookmark').bookmark({ sites: ['facebook', 'twitter', 'linkedin', 'google_plusone'], icons: '/img/bookmarks.png', url: 'https://cds.cern.ch/record/2892370', addEmail: true, title: "Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA", description: "The H1 Collaboration reports the first measurement of the 1-jettiness event shape observable $\\tau _1^b$ in neutral-current deep-inelastic electron-proton scattering (DIS). The observable $\\tau _1^b$ is equivalent to a thrust observable defined in the Breit frame. The data sample was collected at the HERA ep collider in the years 2003\u20132007 with center-of-mass energy of $\\sqrt{s}=319\\,\\textrm{GeV} $, corresponding to an integrated luminosity of 351.1\u00a0$\\textrm{pb}^{-1}$. Triple differential cross sections are provided as a function of $\\tau _1^b$, event virtuality $Q^{2}$, and inelasticity y, in the kinematic region $Q^{2} >150\\,\\textrm{GeV}^2 $. Single differential cross sections are provided as a function of $\\tau _1^b$ in a limited kinematic range. Double differential cross sections are measured, in contrast, integrated over $\\tau _1^b$ and represent the inclusive neutral-current DIS cross section measured as a function of $Q^{2}$ and y. The data are compared to a variety of predictions and include long-standing and more recent Monte Carlo event generators, predictions in fixed-order perturbative QCD where calculations up to $\\mathcal {O}(\\alpha _\\textrm{s} ^3)$ are available for $\\tau _1^b$ or inclusive DIS, and resummed predictions at next-to-leading logarithmic accuracy matched to fixed order predictions at $\\mathcal {O}(\\alpha _\\textrm{s} ^2)$. These comparisons reveal sensitivity of the 1-jettiness observable to QCD parton shower and resummation effects, as well as the modeling of hadronization and fragmentation. Within their range of validity, the fixed-order predictions provide a good description of the data. 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