Measurement of associated W + charm production in pp collisions at [SQRT]s = 7 TeV
(ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image) Abstract Measurements are presented of the associated production of a W boson and a charm-quark jet (W + c) in pp collisions at a center-of-mass energy of 7 TeV. The analysis is conducted with a data sample corresponding to...
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| Veröffentlicht in: | The journal of high energy physics 2014-02, Vol.2014 (2), p.1 |
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| creator | Chatrchyan, S Tumasyan, A Frühwirth, R Liko, D Villella, I Caillol, C Vanlaer, P Du Pree, T Pagano, D Fernandez Perez Tomei, T R Genchev, V Liu, S Chaparro Sierra, L F Lehti, S Tuovinen, E Salerno, R Drouhin, F Verdier, P Perieanu, A Bell, A J Kleinwort, C Pitzl, D Raspereza, A Sahin, M Ö Heine, K Höing, R S Kirschenmann, H Chwalek, T Nürnberg, A Hajdu, C Trocsanyi, Z L Choudhary, B C Grunewald, M De Palma, M Fiore, L Benvenuti, A C Guiducci, L Kanishchev, K Ratti, S P Arneodo, M Hoorani, H R Boimska, B Nguyen, F Gorbunov, I Andreev, Yu Goy Lopez, S Munoz Sanchez, F J Rodríguez-marrero, A Y Guida, R Lourenço, C Quertenmont, L Racz, A Tsirou, A Wallny, R Kilminster, B Cardaci, M Onengut, G Tali, B Kaya, O Senkin, S Williams, T Bell, K W Bainbridge, R Futyan, D Pesaresi, M Sparrow, A Khan, A Symonds, P Christopher, G Ellison, J Wagner, S R Winn, D Yun, J C Chen, M Kropivnitskaya, A Martinez, G Nachtman, J Bolognesi, S Martin, C Murray, M Rebassoo, F Pedro, K Wyslouch, B Yoon, A S Snow, G R Iashvili, I Alverson, G Nash, D Pozdnyakov, A Wolf, M Smith, G Neumeister, N Flanagan, W Volobouev, I Greene, S Arenton, M W Hirosky, R Kottachchi Kankanamge Don, C Sakharov, A Savin, A |
| description | (ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image) Abstract Measurements are presented of the associated production of a W boson and a charm-quark jet (W + c) in pp collisions at a center-of-mass energy of 7 TeV. The analysis is conducted with a data sample corresponding to a total integrated luminosity of 5 fb^sup -1^, collected by the CMS detector at the LHC. W boson candidates are identified by their decay into a charged lepton (muon or electron) and a neutrino. The W + c measurements are performed for charm-quark jets in the kinematic region ... > 25 GeV, |[eta]^sup jet^| < 2.5, for two different thresholds for the transverse momentum of the lepton from the W-boson decay, and in the pseudorapidity range |[eta]^sup ^| < 2.1. Hadronic and inclusive semileptonic decays of charm hadrons are used to measure the following total cross sections: [sigma](pp [arrow right] W + c + X) × ...(W [arrow right] ν) = 107.7 ± 3.3 (stat.) ± 6.9 (syst.) pb (... > 25 GeV) and [sigma](pp [arrow right] W + c + X)×...(W [arrow right] ν) = 84.1 ± 2.0 (stat.) ± 4.9 (syst.) pb (... > 35 GeV), and the cross section ratios [sigma](pp [arrow right] W^sup +^ + ... + X)/[sigma](pp [arrow right] W^sup -^ + c + X) = 0.954 ± 0.025 (stat.) ± 0.004 (syst.) (... > 25 GeV) and [sigma](pp [arrow right] W^sup +^ + ... + X)/[sigma](pp [arrow right] W^sup -^ + c + X) = 0.938 ± 0.019 (stat.) ± 0.006 (syst.) (... > 35 GeV). Cross sections and cross section ratios are also measured differentially with respect to the absolute value of the pseudorapidity of the lepton from the W-boson decay. These are the first measurements from the LHC directly sensitive to the strange quark and antiquark content of the proton. Results are compared with theoretical predictions and are consistent with the predictions based on global fits of parton distribution functions. [Figure not available: see fulltext.] |
| doi_str_mv | 10.1007/JHEP02(2014)013 |
| format | Article |
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The analysis is conducted with a data sample corresponding to a total integrated luminosity of 5 fb^sup -1^, collected by the CMS detector at the LHC. W boson candidates are identified by their decay into a charged lepton (muon or electron) and a neutrino. The W + c measurements are performed for charm-quark jets in the kinematic region ... > 25 GeV, |[eta]^sup jet^| < 2.5, for two different thresholds for the transverse momentum of the lepton from the W-boson decay, and in the pseudorapidity range |[eta]^sup ^| < 2.1. Hadronic and inclusive semileptonic decays of charm hadrons are used to measure the following total cross sections: [sigma](pp [arrow right] W + c + X) × ...(W [arrow right] ν) = 107.7 ± 3.3 (stat.) ± 6.9 (syst.) pb (... > 25 GeV) and [sigma](pp [arrow right] W + c + X)×...(W [arrow right] ν) = 84.1 ± 2.0 (stat.) ± 4.9 (syst.) pb (... > 35 GeV), and the cross section ratios [sigma](pp [arrow right] W^sup +^ + ... + X)/[sigma](pp [arrow right] W^sup -^ + c + X) = 0.954 ± 0.025 (stat.) ± 0.004 (syst.) (... > 25 GeV) and [sigma](pp [arrow right] W^sup +^ + ... + X)/[sigma](pp [arrow right] W^sup -^ + c + X) = 0.938 ± 0.019 (stat.) ± 0.006 (syst.) (... > 35 GeV). Cross sections and cross section ratios are also measured differentially with respect to the absolute value of the pseudorapidity of the lepton from the W-boson decay. These are the first measurements from the LHC directly sensitive to the strange quark and antiquark content of the proton. Results are compared with theoretical predictions and are consistent with the predictions based on global fits of parton distribution functions. [Figure not available: see fulltext.]</description><identifier>EISSN: 1029-8479</identifier><identifier>DOI: 10.1007/JHEP02(2014)013</identifier><language>eng</language><publisher>Heidelberg: Springer Nature B.V</publisher><subject>High energy physics</subject><ispartof>The journal of high energy physics, 2014-02, Vol.2014 (2), p.1</ispartof><rights>SISSA, Trieste, Italy 2014</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,864,27924,27925</link.rule.ids></links><search><creatorcontrib>Chatrchyan, S</creatorcontrib><creatorcontrib>Tumasyan, A</creatorcontrib><creatorcontrib>Frühwirth, R</creatorcontrib><creatorcontrib>Liko, D</creatorcontrib><creatorcontrib>Villella, I</creatorcontrib><creatorcontrib>Caillol, 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T</creatorcontrib><creatorcontrib>Nürnberg, A</creatorcontrib><creatorcontrib>Hajdu, C</creatorcontrib><creatorcontrib>Trocsanyi, Z L</creatorcontrib><creatorcontrib>Choudhary, B C</creatorcontrib><creatorcontrib>Grunewald, M</creatorcontrib><creatorcontrib>De Palma, M</creatorcontrib><creatorcontrib>Fiore, L</creatorcontrib><creatorcontrib>Benvenuti, A C</creatorcontrib><creatorcontrib>Guiducci, L</creatorcontrib><creatorcontrib>Kanishchev, K</creatorcontrib><creatorcontrib>Ratti, S P</creatorcontrib><creatorcontrib>Arneodo, M</creatorcontrib><creatorcontrib>Hoorani, H R</creatorcontrib><creatorcontrib>Boimska, B</creatorcontrib><creatorcontrib>Nguyen, F</creatorcontrib><creatorcontrib>Gorbunov, I</creatorcontrib><creatorcontrib>Andreev, Yu</creatorcontrib><creatorcontrib>Goy Lopez, S</creatorcontrib><creatorcontrib>Munoz Sanchez, F J</creatorcontrib><creatorcontrib>Rodríguez-marrero, A Y</creatorcontrib><creatorcontrib>Guida, R</creatorcontrib><creatorcontrib>Lourenço, C</creatorcontrib><creatorcontrib>Quertenmont, L</creatorcontrib><creatorcontrib>Racz, A</creatorcontrib><creatorcontrib>Tsirou, A</creatorcontrib><creatorcontrib>Wallny, R</creatorcontrib><creatorcontrib>Kilminster, B</creatorcontrib><creatorcontrib>Cardaci, M</creatorcontrib><creatorcontrib>Onengut, G</creatorcontrib><creatorcontrib>Tali, B</creatorcontrib><creatorcontrib>Kaya, O</creatorcontrib><creatorcontrib>Senkin, S</creatorcontrib><creatorcontrib>Williams, T</creatorcontrib><creatorcontrib>Bell, K W</creatorcontrib><creatorcontrib>Bainbridge, R</creatorcontrib><creatorcontrib>Futyan, D</creatorcontrib><creatorcontrib>Pesaresi, M</creatorcontrib><creatorcontrib>Sparrow, A</creatorcontrib><creatorcontrib>Khan, A</creatorcontrib><creatorcontrib>Symonds, P</creatorcontrib><creatorcontrib>Christopher, G</creatorcontrib><creatorcontrib>Ellison, J</creatorcontrib><creatorcontrib>Wagner, S R</creatorcontrib><creatorcontrib>Winn, D</creatorcontrib><creatorcontrib>Yun, J C</creatorcontrib><creatorcontrib>Chen, M</creatorcontrib><creatorcontrib>Kropivnitskaya, A</creatorcontrib><creatorcontrib>Martinez, G</creatorcontrib><creatorcontrib>Nachtman, J</creatorcontrib><creatorcontrib>Bolognesi, S</creatorcontrib><creatorcontrib>Martin, C</creatorcontrib><creatorcontrib>Murray, M</creatorcontrib><creatorcontrib>Rebassoo, F</creatorcontrib><creatorcontrib>Pedro, K</creatorcontrib><creatorcontrib>Wyslouch, B</creatorcontrib><creatorcontrib>Yoon, A S</creatorcontrib><creatorcontrib>Snow, G R</creatorcontrib><creatorcontrib>Iashvili, I</creatorcontrib><creatorcontrib>Alverson, G</creatorcontrib><creatorcontrib>Nash, D</creatorcontrib><creatorcontrib>Pozdnyakov, A</creatorcontrib><creatorcontrib>Wolf, M</creatorcontrib><creatorcontrib>Smith, G</creatorcontrib><creatorcontrib>Neumeister, N</creatorcontrib><creatorcontrib>Flanagan, W</creatorcontrib><creatorcontrib>Volobouev, I</creatorcontrib><creatorcontrib>Greene, S</creatorcontrib><creatorcontrib>Arenton, M W</creatorcontrib><creatorcontrib>Hirosky, R</creatorcontrib><creatorcontrib>Kottachchi Kankanamge Don, C</creatorcontrib><creatorcontrib>Sakharov, A</creatorcontrib><creatorcontrib>Savin, A</creatorcontrib><title>Measurement of associated W + charm production in pp collisions at [SQRT]s = 7 TeV</title><title>The journal of high energy physics</title><description>(ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image) Abstract Measurements are presented of the associated production of a W boson and a charm-quark jet (W + c) in pp collisions at a center-of-mass energy of 7 TeV. The analysis is conducted with a data sample corresponding to a total integrated luminosity of 5 fb^sup -1^, collected by the CMS detector at the LHC. W boson candidates are identified by their decay into a charged lepton (muon or electron) and a neutrino. The W + c measurements are performed for charm-quark jets in the kinematic region ... > 25 GeV, |[eta]^sup jet^| < 2.5, for two different thresholds for the transverse momentum of the lepton from the W-boson decay, and in the pseudorapidity range |[eta]^sup ^| < 2.1. Hadronic and inclusive semileptonic decays of charm hadrons are used to measure the following total cross sections: [sigma](pp [arrow right] W + c + X) × ...(W [arrow right] ν) = 107.7 ± 3.3 (stat.) ± 6.9 (syst.) pb (... > 25 GeV) and [sigma](pp [arrow right] W + c + X)×...(W [arrow right] ν) = 84.1 ± 2.0 (stat.) ± 4.9 (syst.) pb (... > 35 GeV), and the cross section ratios [sigma](pp [arrow right] W^sup +^ + ... + X)/[sigma](pp [arrow right] W^sup -^ + c + X) = 0.954 ± 0.025 (stat.) ± 0.004 (syst.) (... > 25 GeV) and [sigma](pp [arrow right] W^sup +^ + ... + X)/[sigma](pp [arrow right] W^sup -^ + c + X) = 0.938 ± 0.019 (stat.) ± 0.006 (syst.) (... > 35 GeV). Cross sections and cross section ratios are also measured differentially with respect to the absolute value of the pseudorapidity of the lepton from the W-boson decay. These are the first measurements from the LHC directly sensitive to the strange quark and antiquark content of the proton. Results are compared with theoretical predictions and are consistent with the predictions based on global fits of parton distribution functions. [Figure not available: see fulltext.]</description><subject>High energy physics</subject><issn>1029-8479</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNotjk1Lw0AURQdBsFbXbh-4UST65nuycCGlWqWi1qALkTKdTDAlzaSZyf83oKvD3Zx7CDmjeE0R9c3TYv6K7IIhFZdI-QGZUGR5ZoTOj8hxjFtEKmmOE7J69jYOvd_5NkGowMYYXG2TL-ETrsD92H4HXR_KwaU6tFC30HXgQtPUcdwRbIKv97dV8R3hFjQU_uOEHFa2if70n1NS3M-L2SJbvjw8zu6WWZeblDHJnFVMoqMUuXeOV9zJjTGlYa4slVJ6wyuhpUUrmLFCCq83pZNMcCGU4lNy_qcd6_aDj2m9DUPfjo9rqpWghqtR_Au0mE1v</recordid><startdate>20140201</startdate><enddate>20140201</enddate><creator>Chatrchyan, S</creator><creator>Tumasyan, A</creator><creator>Frühwirth, R</creator><creator>Liko, D</creator><creator>Villella, I</creator><creator>Caillol, C</creator><creator>Vanlaer, 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B.V</general><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope></search><sort><creationdate>20140201</creationdate><title>Measurement of associated W + charm production in pp collisions at [SQRT]s = 7 TeV</title><author>Chatrchyan, S ; Tumasyan, A ; Frühwirth, R ; Liko, D ; Villella, I ; Caillol, C ; Vanlaer, P ; Du Pree, T ; Pagano, D ; Fernandez Perez Tomei, T R ; Genchev, V ; Liu, S ; Chaparro Sierra, L F ; Lehti, S ; Tuovinen, E ; Salerno, R ; Drouhin, F ; Verdier, P ; Perieanu, A ; Bell, A J ; Kleinwort, C ; Pitzl, D ; Raspereza, A ; Sahin, M Ö ; Heine, K ; Höing, R S ; Kirschenmann, H ; Chwalek, T ; Nürnberg, A ; Hajdu, C ; Trocsanyi, Z L ; Choudhary, B C ; Grunewald, M ; De Palma, M ; Fiore, L ; Benvenuti, A C ; Guiducci, L ; Kanishchev, K ; Ratti, S P ; Arneodo, M ; Hoorani, H R ; Boimska, B ; Nguyen, F ; Gorbunov, I ; Andreev, Yu ; Goy Lopez, S ; Munoz Sanchez, F J ; Rodríguez-marrero, A Y ; Guida, R ; Lourenço, C ; Quertenmont, L ; Racz, A ; Tsirou, A ; Wallny, R ; Kilminster, B ; Cardaci, M ; Onengut, G ; Tali, B ; Kaya, O ; Senkin, S ; Williams, T ; Bell, K W ; Bainbridge, R ; Futyan, D ; Pesaresi, M ; Sparrow, A ; Khan, A ; Symonds, P ; Christopher, G ; Ellison, J ; Wagner, S R ; Winn, D ; Yun, J C ; Chen, M ; Kropivnitskaya, A ; Martinez, G ; Nachtman, J ; Bolognesi, S ; Martin, C ; Murray, M ; Rebassoo, F ; Pedro, K ; Wyslouch, B ; Yoon, A S ; Snow, G R ; Iashvili, I ; Alverson, G ; Nash, D ; Pozdnyakov, A ; Wolf, M ; Smith, G ; Neumeister, N ; Flanagan, W ; Volobouev, I ; Greene, S ; Arenton, M W ; Hirosky, R ; Kottachchi Kankanamge Don, C ; Sakharov, A ; Savin, A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p98t-252ca6250c1103ecc3f3c5b88d82cdd6667b3f475a0a428a454e7bdc524344663</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>High energy physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chatrchyan, S</creatorcontrib><creatorcontrib>Tumasyan, A</creatorcontrib><creatorcontrib>Frühwirth, R</creatorcontrib><creatorcontrib>Liko, D</creatorcontrib><creatorcontrib>Villella, I</creatorcontrib><creatorcontrib>Caillol, C</creatorcontrib><creatorcontrib>Vanlaer, P</creatorcontrib><creatorcontrib>Du Pree, T</creatorcontrib><creatorcontrib>Pagano, D</creatorcontrib><creatorcontrib>Fernandez Perez Tomei, T R</creatorcontrib><creatorcontrib>Genchev, V</creatorcontrib><creatorcontrib>Liu, S</creatorcontrib><creatorcontrib>Chaparro Sierra, L F</creatorcontrib><creatorcontrib>Lehti, S</creatorcontrib><creatorcontrib>Tuovinen, E</creatorcontrib><creatorcontrib>Salerno, R</creatorcontrib><creatorcontrib>Drouhin, F</creatorcontrib><creatorcontrib>Verdier, P</creatorcontrib><creatorcontrib>Perieanu, A</creatorcontrib><creatorcontrib>Bell, A J</creatorcontrib><creatorcontrib>Kleinwort, C</creatorcontrib><creatorcontrib>Pitzl, D</creatorcontrib><creatorcontrib>Raspereza, A</creatorcontrib><creatorcontrib>Sahin, M Ö</creatorcontrib><creatorcontrib>Heine, K</creatorcontrib><creatorcontrib>Höing, R S</creatorcontrib><creatorcontrib>Kirschenmann, H</creatorcontrib><creatorcontrib>Chwalek, T</creatorcontrib><creatorcontrib>Nürnberg, A</creatorcontrib><creatorcontrib>Hajdu, C</creatorcontrib><creatorcontrib>Trocsanyi, Z L</creatorcontrib><creatorcontrib>Choudhary, B C</creatorcontrib><creatorcontrib>Grunewald, M</creatorcontrib><creatorcontrib>De Palma, M</creatorcontrib><creatorcontrib>Fiore, L</creatorcontrib><creatorcontrib>Benvenuti, A C</creatorcontrib><creatorcontrib>Guiducci, L</creatorcontrib><creatorcontrib>Kanishchev, K</creatorcontrib><creatorcontrib>Ratti, S P</creatorcontrib><creatorcontrib>Arneodo, M</creatorcontrib><creatorcontrib>Hoorani, H R</creatorcontrib><creatorcontrib>Boimska, B</creatorcontrib><creatorcontrib>Nguyen, F</creatorcontrib><creatorcontrib>Gorbunov, I</creatorcontrib><creatorcontrib>Andreev, Yu</creatorcontrib><creatorcontrib>Goy Lopez, S</creatorcontrib><creatorcontrib>Munoz Sanchez, F J</creatorcontrib><creatorcontrib>Rodríguez-marrero, A Y</creatorcontrib><creatorcontrib>Guida, R</creatorcontrib><creatorcontrib>Lourenço, C</creatorcontrib><creatorcontrib>Quertenmont, L</creatorcontrib><creatorcontrib>Racz, A</creatorcontrib><creatorcontrib>Tsirou, A</creatorcontrib><creatorcontrib>Wallny, R</creatorcontrib><creatorcontrib>Kilminster, B</creatorcontrib><creatorcontrib>Cardaci, M</creatorcontrib><creatorcontrib>Onengut, G</creatorcontrib><creatorcontrib>Tali, 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(Alumni)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest advanced technologies & aerospace journals</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><jtitle>The journal of high energy physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chatrchyan, S</au><au>Tumasyan, A</au><au>Frühwirth, R</au><au>Liko, D</au><au>Villella, I</au><au>Caillol, C</au><au>Vanlaer, P</au><au>Du Pree, T</au><au>Pagano, D</au><au>Fernandez Perez Tomei, T R</au><au>Genchev, V</au><au>Liu, S</au><au>Chaparro Sierra, L F</au><au>Lehti, S</au><au>Tuovinen, E</au><au>Salerno, R</au><au>Drouhin, F</au><au>Verdier, P</au><au>Perieanu, A</au><au>Bell, A J</au><au>Kleinwort, C</au><au>Pitzl, D</au><au>Raspereza, A</au><au>Sahin, M Ö</au><au>Heine, K</au><au>Höing, R S</au><au>Kirschenmann, H</au><au>Chwalek, T</au><au>Nürnberg, A</au><au>Hajdu, C</au><au>Trocsanyi, Z L</au><au>Choudhary, B C</au><au>Grunewald, M</au><au>De Palma, M</au><au>Fiore, L</au><au>Benvenuti, A C</au><au>Guiducci, L</au><au>Kanishchev, K</au><au>Ratti, S P</au><au>Arneodo, M</au><au>Hoorani, H R</au><au>Boimska, B</au><au>Nguyen, F</au><au>Gorbunov, I</au><au>Andreev, Yu</au><au>Goy Lopez, S</au><au>Munoz Sanchez, F J</au><au>Rodríguez-marrero, A Y</au><au>Guida, R</au><au>Lourenço, C</au><au>Quertenmont, L</au><au>Racz, A</au><au>Tsirou, A</au><au>Wallny, R</au><au>Kilminster, B</au><au>Cardaci, M</au><au>Onengut, G</au><au>Tali, B</au><au>Kaya, O</au><au>Senkin, S</au><au>Williams, T</au><au>Bell, K W</au><au>Bainbridge, R</au><au>Futyan, D</au><au>Pesaresi, M</au><au>Sparrow, A</au><au>Khan, A</au><au>Symonds, P</au><au>Christopher, G</au><au>Ellison, J</au><au>Wagner, S R</au><au>Winn, D</au><au>Yun, J C</au><au>Chen, M</au><au>Kropivnitskaya, A</au><au>Martinez, G</au><au>Nachtman, J</au><au>Bolognesi, S</au><au>Martin, C</au><au>Murray, M</au><au>Rebassoo, F</au><au>Pedro, K</au><au>Wyslouch, B</au><au>Yoon, A S</au><au>Snow, G R</au><au>Iashvili, I</au><au>Alverson, G</au><au>Nash, D</au><au>Pozdnyakov, A</au><au>Wolf, M</au><au>Smith, G</au><au>Neumeister, N</au><au>Flanagan, W</au><au>Volobouev, I</au><au>Greene, S</au><au>Arenton, M W</au><au>Hirosky, R</au><au>Kottachchi Kankanamge Don, C</au><au>Sakharov, A</au><au>Savin, A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement of associated W + charm production in pp collisions at [SQRT]s = 7 TeV</atitle><jtitle>The journal of high energy physics</jtitle><date>2014-02-01</date><risdate>2014</risdate><volume>2014</volume><issue>2</issue><spage>1</spage><pages>1-</pages><eissn>1029-8479</eissn><abstract>(ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image) Abstract Measurements are presented of the associated production of a W boson and a charm-quark jet (W + c) in pp collisions at a center-of-mass energy of 7 TeV. The analysis is conducted with a data sample corresponding to a total integrated luminosity of 5 fb^sup -1^, collected by the CMS detector at the LHC. W boson candidates are identified by their decay into a charged lepton (muon or electron) and a neutrino. The W + c measurements are performed for charm-quark jets in the kinematic region ... > 25 GeV, |[eta]^sup jet^| < 2.5, for two different thresholds for the transverse momentum of the lepton from the W-boson decay, and in the pseudorapidity range |[eta]^sup ^| < 2.1. Hadronic and inclusive semileptonic decays of charm hadrons are used to measure the following total cross sections: [sigma](pp [arrow right] W + c + X) × ...(W [arrow right] ν) = 107.7 ± 3.3 (stat.) ± 6.9 (syst.) pb (... > 25 GeV) and [sigma](pp [arrow right] W + c + X)×...(W [arrow right] ν) = 84.1 ± 2.0 (stat.) ± 4.9 (syst.) pb (... > 35 GeV), and the cross section ratios [sigma](pp [arrow right] W^sup +^ + ... + X)/[sigma](pp [arrow right] W^sup -^ + c + X) = 0.954 ± 0.025 (stat.) ± 0.004 (syst.) (... > 25 GeV) and [sigma](pp [arrow right] W^sup +^ + ... + X)/[sigma](pp [arrow right] W^sup -^ + c + X) = 0.938 ± 0.019 (stat.) ± 0.006 (syst.) (... > 35 GeV). Cross sections and cross section ratios are also measured differentially with respect to the absolute value of the pseudorapidity of the lepton from the W-boson decay. These are the first measurements from the LHC directly sensitive to the strange quark and antiquark content of the proton. Results are compared with theoretical predictions and are consistent with the predictions based on global fits of parton distribution functions. [Figure not available: see fulltext.]</abstract><cop>Heidelberg</cop><pub>Springer Nature B.V</pub><doi>10.1007/JHEP02(2014)013</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 1029-8479 |
| ispartof | The journal of high energy physics, 2014-02, Vol.2014 (2), p.1 |
| issn | 1029-8479 |
| language | eng |
| recordid | cdi_proquest_journals_1764183610 |
| source | Springer_OA刊; Directory of Open Access Journals; SpringerLink_现刊; Alma/SFX Local Collection; EZB Electronic Journals Library |
| subjects | High energy physics |
| title | Measurement of associated W + charm production in pp collisions at [SQRT]s = 7 TeV |
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