Measurement of the Z boson differential cross section in transverse momentum and rapidity in proton–proton collisions at 8 TeV

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题名:	Measurement of the Z boson differential cross section in transverse momentum and rapidity in proton–proton collisions at 8 TeV
作者:	林宗泰;Levine, Aaron;Poehlsen, Jennifer;Apresyan, Artur;Bagliesi, Giuseppe;Velkovska, Julia;Varelas, Nikos;Wöhrmann, Clemens;Seva, Tomislav;Innocente, Vincenzo;Swain, Sanjay Kumar;Hadjiiska, Roumyana;Gascon, Susan;Geiser, Achim;Spalding, William J;Shukla, Prashant;Colaleo, Anna;Piotrzkowski, Krzysztof;Steinbrück, Georg;Avetisyan, Aram;Rose, Anthony;Elliott-Peisert, Anna;Farrell, Chris;Mittal, Monika;Junkes, Alexandra;Pant, Lalit Mohan;Tricomi, Alessia;Martinez, German;Cockerill, David JA;Ferencek, Dinko;Marchesini, Ivan;Haas, Jeff;Christopher, Grant;Tosi, Nicolò;Ekmedzic, Marko;Lu, Ying;Brooke, James John;Mott, Alexander;Ahmad, Ashfaq;Mohanty, Ajit Kumar;Spiropulu, Maria;De Moraes Gregores, Eduardo;Malcles, Julie;Dewanjee, Ram Krishna;Tamponi, Umberto;Jain, Shilpi;Luyckx, Sten;Danielson, Thomas;Fabbri, Fabrizio;Berry, Edmund;Chwalek, Thorsten;Dupont-Sagorin, Niels;Paktinat Mehdiabadi, Saeid;Nowatschin, Dominik;Korol, Ievgen;Szillasi, Zoltan;Woods, Nathaniel;Hatakeyama, Kenichi;Kazana, Malgorzata;Dumanoglu, Isa;Frueboes, Tomasz;Brandt, Stephanie;Bachtis, Michail;Costa, Salvatore;Gerosa, Raffaele;Letts, James;Kim, Tae Jeong;Saka, Halil;Skatchkov, Nikolai;Piparo, Danilo;Van Mechelen, Pierre;Castaneda Hernandez, Alfredo;Gulmini, Michele;Fulcher, Jonathan;West, Christopher;Gomez, Gervasio;Gninenko, Sergei;Dinardo, Mauro Emanuele;Ptochos, Fotios;Wilken, Rachel;Ford, William T;Damgov, Jordan;Chao, Yuan;Beri, Suman Bala;Cankocak, Kerem;Van Remortel, Nick;Rodozov, Mircho;Halkiadakis, Eva;Navarria, Francesco;Girgis, Semiray;Bellan, Riccardo;Kim, Gui Nyun;Sanders, Stephen;Chang, Sunghyun;Brochet, Sébastien;De La Cruz, Begona;Goldstein, Joel;Naumann-Emme, Sebastian;George, Christopher;Vavilov, Sergey;Dugad, Shashikant
贡献者:	理學院物理學系
关键词:	CMS;Experiment;High Energy Physics - Experiment;Particle Physics;Physics;PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;Z boson differential cross section
日期:	2015-10-07
上传时间:	2026-04-23 12:22:45 (UTC+8)
出版者:	Netherlands: Elsevier
摘要:	摘要： We present a measurement of the Z boson differential cross section in rapidity and transverse momentum using a data sample of pp collision events at a centre-of-mass energy $\sqrt{s}$ = 8 TeV, corresponding to an integrated luminosity of 19.7 fb$^{-1}$. The Z boson is identified via its decay to a pair of muons. The measurement provides a precision test of quantum chromodynamics over a large region of phase space. In addition, due to the small experimental uncertainties in the measurement the data has the potential to constrain the gluon parton distribution function in the kinematic regime important for Higgs boson production via gluon fusion. The results agree with the next-to-next-to-leading-order predictions computed with the FEWZ program. The results are also compared to the commonly used leading-order MADGRAPH and next-to-leading-order POWHEG generators. We present a measurement of the Z boson differential cross section in rapidity and transverse momentum using a data sample of pp collision events at a centre-of-mass energy s=8 TeV , corresponding to an integrated luminosity of 19.7 fb −1 . The Z boson is identified via its decay to a pair of muons. The measurement provides a precision test of quantum chromodynamics over a large region of phase space. In addition, due to the small experimental uncertainties in the measurement the data has the potential to constrain the gluon parton distribution function in the kinematic regime important for Higgs boson production via gluon fusion. The results agree with the next-to-next-to-leading-order predictions computed with the fewz program. The results are also compared to the commonly used leading-order MadGraph and next-to-leading-order powheg generators. We present a measurement of the Z boson differential cross section in rapidity and transverse momentum using a data sample of pp collision events at a centre-of-mass energy sqrt(s)=8 TeV, corresponding to an integrated luminosity of 19.7 inverse femtobarns. The Z boson is identified via its decay to a pair of muons. The measurement provides a precision test of quantum chromodynamics over a large region of phase space. In addition, due to the small experimental uncertainties in the measurement the data has the potential to constrain the gluon parton distribution function in the kinematic regime important for Higgs boson production via gluon fusion. The results agree with the next-to-next-to-leading-order predictions computed with the FEWZ program. The results are also compared to the commonly used leading-order MADGRAPH and next-to-leading-order POWHEG generators. 出版者： Netherlands: Elsevier 出版日期： 2015-10-07 出處： Physics letters. B, 2015-10, Vol.749 (C), p.187-209 資源來源： Elsevier ScienceDirect Journals Complete 版權： CC0 1.0 - Universal 識別號： ISSN: 0370-2693 識別號： ISSN: 1873-2445 識別號： EISSN: 1873-2445 識別號： DOI: 10.1016/j.physletb.2015.07.065
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