Measurement of the W charge asymmetry in the W -> mu nu decay mode in pp collisions at root s=7 TeV with the ATLAS detector

Abstract

This Letter reports a measurement of the muon charge asymmetry from W bosons produced in proton–proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS experiment at the LHC. The asymmetry is measured in the W→μν decay mode as a function of the muon pseudorapidity using a data sample corresponding to a total integrated luminosity of 31 pb−1. The results are compared to predictions based on next-to-leading order calculations with various parton distribution functions. This measurement provides information on the u and d quark momentum fractions in the proton.

Metadata

Authors/Creators:	Aad, G Abbott, B Abdallah, J Abdelalim, AA Abdesselam, A Abdinov, O Abi, B Abolins, M Abramowicz, H Abreu, H Acerbi, E Acharya, BS Adams, DL Addy, TN Adelman, J Aderholz, M Adomeit, S Adragna, P Adye, T Aefsky, S Aguilar-Saavedra, JA Aharrouche, M Ahlen, SP Ahles, F Ahmad, A Ahsan, M Aielli, G Akdogan, T Akesson, TPA Akimoto, G Akimov, AV Akiyama, A Alam, MS Alam, MA Albrand, S Aleksa, M Aleksandrov, IN Alessandria, F Alexa, C Alexander, G Alexandre, G Alexopoulos, T Alhroob, M Aliev, M Alimonti, G Alison, J Aliyev, M Allport, PP Allwood-Spiers, SE Almond, J Aloisio, A Alon, R Alonso, A Alviggi, MG Amako, K Amaral, P Amelung, C Ammosov, VV Amorim, A Amoros, G Amram, N Anastopoulos, C Andeen, T Anders, CF Anderson, KJ Andreazzaa, A Andrei, V Andrieux, ML Anduaga, XS Angerami, A Anghinolfi, F Anjos, N Annovi, A Antonaki, A Antonelli, M Antonelli, S Antonov, A Antos, J Anulli, F Aoun, S Bella, LA Apolle, R Arabidze, G Aracena, I Arai, Y Arce, ATH Archambault, JP Arfaoui, S Arguin, JF Arik, E Arik, M Armbruster, AJ Arnaez, O Arnault, C Artamonov, A Artoni, G Arutinov, D Asai, S Asfandiyarov, R Ask, S Asman, B Asquith, L Assamagan, K Astbury, A Astvatsatourov, A Atoian, G Aubert, B Auerbach, B Auge, E Augsten, K Aurousseau, M Austin, N Avramidou, R Axen, D Ay, C Azuelos, G Azuma, Y Baak, MA Baccaglioni, G Bacci, C Bach, AM Bachacou, H Bachas, K Bachy, G Backes, M Backhaus, M Badescu, E Bagnaia, R Bahinipati, S Bai, Y Bailey, DC Bain, T Baines, JT Baker, OK Baker, MD Baker, S Pedrosa, FBD Banas, E Banerjee, R Banerjee, S Banfi, D Bangert, A Bansal, V Bansil, HS Barak, L Baranov, SP Barashkou, A Galtieri, AB Barber, T Barberio, EL Barberis, D Barbero, M Bardin, DY Barillari, T Barisonzi, M Barklow, T Barlow, N Barnett, BM Barnett, RM Baroncelli, A Barr, AJ Barreiro, F da Costa, JBG Barrillon, P Bartoldus, R Barton, AE Bartsch, D Bartsch, V Bates, RL Batkova, L Batley, JR Battaglia, A Battistin, M Battistoni, G Bauer, F Bawa, HS Beare, B Beau, T Beauchemin, PH Beccherle, R Bechtle, P Beck, HP Beckingham, M Becks, KH Beddall, AJ Beddall, A Bedikian, S Bednyakov, VA Bee, CP Begel, M Harpaz, SB Behera, PK Beimforde, M Belanger-Champagne, C Bell, PJ Bell, WH Bella, G Bellagamba, L Bellina, F Bellomolla, M Belloni, A Beloborodova, O Belotskiy, K Beltramello, O Ben Ami, S Benary, O Benchekroun, D Benchouk, C Bendel, M Benedict, BH Benekos, N Benhammou, Y Benjamin, DP Benoit, M Bensinger, JR Benslama, K Bentvelsen, S Berge, D Kuutmann, EB Berger, N Berghaus, F Berglund, E Beringer, J Bernardet, K Bernat, P Bernhard, R Bernius, C Berry, T Bertin, A Bertinelli, E Bertolucci, F Besana, MI Besson, N Bethke, S Bhimji, W Bianchi, RM Bianco, M Biebel, O Bieniek, SP Biesiada, J Biglietti, M Bilokon, H Bindi, M Binet, S Bingul, A Bini, C Biscarat, C Bitenc, U Black, KM Blair, RE Blanchard, JB Blanchot, G Blocker, C Blocki, J Blondel, A Blum, W Blumenschein, U Bobbink, GJ Bobrovnikov, VB Bocchetta, SS Bocci, A Boddy, CR Boehler, M Boek, J Boelaert, N Boser, S Bogaerts, JA Bogdanchikov, A Bogouch, A Bohm, C Boisvert, V Bold, T Boldea, V Bona, M Bondarenko, VG Boonekamp, M Boorman, G Booth, CN https://orcid.org/0000-0002-6051-2847 Booth, P Bordoni, S Borer, C Borisov, A Borissov, G Borjanovic, I Borroni, S Bos, K Boscherini, D Bosman, M Boterenbrood, H Botterill, D Bouchami, J Boudreau, J Bouhova-Thacker, EV Boulahouache, C Bourdarios, C Bousson, N Boveia, A Boyd, J Boyko, IR Bozhko, NI Bozovic-Jelisavcic, I Bracinik, J Braem, A Branchini, P Brandenburg, GW Brandt, A Brandt, G Brandt, O Bratzler, U Brau, B Brau, JE Braun, HM Brelier, B Bremer, J Brenner, R Bressler, S Breton, D Brett, ND Britton, D Brochu, FM Brock, I Brock, R Brodbeck, TJ Brodet, E Broggi, F Bromberg, C Brooijmans, G Brooks, WK Brown, G Brubaker, E de Renstrom, PAB Bruncko, D Bruneliere, R Brunet, S Bruni, A Bruni, G Bruschi, M Buanes, T Bucci, F Buchanan, J Buchanan, NJ Buchholz, R Buckingham, RM Buckley, AG Buda, SI Budagov, IA Budick, B Buscher, V Bugge, L 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F Cetin, SA Cevenini, E Chafaq, A Chakraborty, D Chan, K Chapleau, B Chapman, JD Chapman, JW Chareyre, E Charlton, DG Chavda, V Cheatham, S Chekanov, S Chekulaev, SV Chelkov, GA Chelstowska, MA Chen, C Chen, H Chen, L Chen, S Chen, T Chen, X Cheng, S Cheplakov, A Chepurnov, VF El Moursli, RC Chernyatin, V Cheu, E Cheung, SL Chevalier, L Chiefari, G Chikovani, L Childers, JT Chilingarov, A Chiodini, G Chizhov, MV Choudalakis, G Chouridou, S Christidi, IA Christov, A Chromek-Burckhart, D Chu, ML Chudoba, J Ciapetti, G Ciba, K Ciftci, AK Ciftci, R Cinca, D Cindro, V Ciobotaru, MD Ciocca, C Ciocio, A Cirilli, M Ciubancan, M Clark, A Clark, PJ Cleland, W Clemens, JC Clement, B Clement, C Clifft, RW Coadou, Y Cobal, M Coccaro, A Cochran, TJ Coe, P Cogan, JG Coggeshal, J Cogneras, E Cojocaru, CD Colas, J Colijn, AP Collard, C Collins, NJ Collins-Tooth, C Collot, J Colon, G Comune, G Muino, PC Coniavitis, E Conidi, MC Consonni, M Constantinescu, S Conta, C Conventi, F Cook, J Cooke, M Cooper, BD Cooper-Sarkar, AM Cooper-Smith, NJ Copic, K Cornelissen, T Corradi, M Corriveau, F Cortes-Gonzalez, A Cortiana, G Costa, G Costa, MJ Costanzo, D Costin, T Cote, D Torres, RC Courneyea, L Cowan, G Cowden, C Cox, BE Cranmer, K Crescioli, F Cristinziani, M Crosetti, G Crupi, R Crepe-Renaudin, S Almenar, CC Donszelmann, TC Cuneo, S Curatolo, M Curtis, CJ Cwetanski, P Czirr, H Czyczula, Z D'Auria, S D'Onofrio, M D'Orazio, A Mello, ADG Da Silva, PVM Da Via, C Dabrowski, W Dahlhoff, A Dai, T Dallapiccola, C Dallison, SJ Dam, M Dameri, M Damiani, DS Danielsson, HO Dankers, R Dannheim, D Dao, V Darbo, G Darlea, GL Daum, C Dauvergne, JP Davey, W Davidek, T Davidson, N Davidson, R Davies, M Davison, AR Dawe, E Dawson, I Dawson, JW Daya, RK De, K de Asmundis, R De Castro, S Salgado, PEDF De Cecco, S de Graat, J De Groot, N de Jong, R De la Taille, C De la Torre, H De Lotto, B De Mora, L De Nooij, L Branco, MD De Pedis, D de Saintignon, P De Salvo, A De Sanctis, U De Santo, A De Regie, JBD Dean, S Dedovich, DV Degenhardt, J Dehchar, M Deile, M Del Papa, C Del Peso, J Del Prete, T Dell'Acqua, A Dell'Asta, L Della Pietra, M della Volpe, D Delmastro, M Delpierre, P Delruelle, N Delsart, PA Deluca, C Demers, S Demichev, M Demirkoz, B Deng, J Denisov, SP Derendarz, D Derkaoui, JE Derue, F Dervan, P Desch, K Devetak, E Deviveiros, PO Dewhurst, A DeWilde, B Dhaliwal, S Dhullipudi, R Di Ciaccioa, A Di Ciaccio, L Di Girolamo, A Di Girolamo, B Luise, S Di Mattia, A Di Micco, B Di Nardo, R Di Simone, A Di Sipio, R Diaza, MA Diblen, F Diehl, EB Dietl, H Dietrich, J Dietzsch, TA Diglio, S Yagci, KD Dingfelder, J Dionisi, C Dita, P Dita, S Dittus, F Djama, F Djilkibaev, R Djobava, T Vale, MAB Wemans, AD Doan, TKO Dobbs, M Dobinson, R Dobos, D Dobson, E Dobson, M Dodd, J Dogan, OB Doglioni, C Doherty, T Doi, Y Dolejsi, J Dolenc, I Dolezal, Z Dolgoshein, BA Dohmae, T Donadelli, M Donega, M Donini, J Dopke, J Doria, A Dos Anjos, A Dosil, M Dotti, A Dova, MT Dowell, JD Doxiadis, AD Doyle, AT 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L Fazio, S Febbraro, R Federic, R Fedin, OL Fedorko, I Fedorko, W Fehling-Kaschek, M Feligioni, L Fellmann, D Felzmann, CU Feng, C Feng, EJ Fenyuk, AB Ferencei, J Ferland, J Fernandes, B Fernando, W Ferrag, S Ferrando, J Ferrara, V Ferrari, A Ferrari, P Ferrari, R Ferrer, A Ferrer, ML Ferrere, D Ferretti, C Parodi, AF Fiascaris, M Fiedler, F Filipcic, A Filippas, A Filthaut, F Fincke-Keeler, M Fiolhais, MCN Fiorini, L Firan, A Fischer, G Fischer, P Fisher, MJ Fisher, SM Flammer, J Flechl, M Fleck, I Fleckner, J Fleischmann, P Fleischmann, S Flick, T Castillo, LRF Flowerdew, MJ Foehlisch, E Fokitis, M Martin, TF Forbush, DA Formica, A Forti, A Fortin, D Foster, JM Fournier, D Foussat, A Fowler, AJ Fowler, K Fox, H Francavilla, P Franchino, S Francis, D Frank, T Franklin, M Franz, S Fraternali, M Fratina, S French, ST Froeschl, R Froidevaux, D Frost, JA Fukunaga, C Torregrosa, EF Fuster, J Gabaldon, C Gabizon, O Gadfort, T Gadomski, S Gagliardi, G Gagnon, R Galea, C Gallas, EJ Gallas, MV 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Nakano, I Nanava, G Napier, A Nash, M Nation, NR Nattermann, T Naumann, T Navarro, G Neal, HA Nebot, E Nechaeva, PY Negri, A Negri, G Nektarijevic, S Nelson, A Nelson, S Nelson, TK Nemecek, S Nemethy, R Nepomuceno, AA Nessi, M Nesterov, SY Neubauer, MS Neusiedl, A Neves, RM Nevski, R Newman, PR Nickerson, RB Nicolaidou, R Nicolas, L Nicquevert, B Niedercorn, F Nielsen, J Niinikoski, T Nikiforov, A Nikolaenko, V Nikolaev, K Nikolic-Audit, I Nikolopoulos, K Nilsen, H Nilsson, P Ninomiya, Y Nisati, A Nishiyama, T Nisius, R Nodulman, L Nomachi, M Nomidis, I Nomoto, H Nordberg, M Nordkvist, B Norton, PR Novakova, J Nozaki, M Nozicka, M Nozka, L Nugent, IM Nuncio-Quiroz, AE Hanninger, GN Nunnemann, T Nurse, E Nyman, T O'Brien, BJ O'Neale, SW O'Neil, DC O'Shea, V Oakham, FG Oberlack, H Ocariz, J Ochi, A Oda, S Odaka, S Odier, J Ogren, H Oh, A Oh, SH Ohm, CC Ohshima, T Ohshita, H Ohska, TK Ohsugi, T Okada, S Okawa, H Okumura, Y Okuyama, T Olcese, M Olchevski, AG Oliveira, M Damazio, DO Garcia, EO Olivito, D Olszewski, A Olszowska, J Omachi, C Onofre, A Onyisi, PUE Oram, CJ Oreglia, MJ Orellana, F Oren, Y Orestano, D Orlov, I Barrera, CO Orr, RS Ortega, EO Osculati, B Ospanov, R Osuna, C Garzon, GY Ottersbach, JP Ouchrif, M Ould-Saada, F Ouraou, A Ouyang, Q Owen, M Owen, S Oye, OK Ozcan, VE Ozturk, N Pages, AP Aranda, CP Paganis, E Paige, F Pajchel, K Palestini, S Pallin, D Palma, A Palmer, JD Pan, YB Panagiotopoulou, E Panes, B Panikashvili, N Panitkin, S Pantea, D Panuskova, M Paolone, V Paoloni, A Papadelis, A Papadopoulou, TD Paramonov, A Park, W Parker, MA Parodi, F Parsons, JA Parzefall, U Pasqualucci, E Passeri, A Pastore, F Pastore, F Pasztor, G Pataraia, S Patel, N Pater, JR Patricelli, S Pauly, T Pecsy, M Morales, MIP Peleganchuk, SV Peng, H Pengo, R Penson, A Penwell, J Perantoni, M Perez, K Cavalcanti, TP Codina, EP Garcia-Estan, MTP Reale, VP Peric, I Perini, L Pernegger, H Perrino, R Perrodo, P Persembe, S Peshekhonov, VD Peters, O Petersen, BA Petersen, J Petersen, TC Petit, E Petridis, A Petridou, C Petrolo, E Petrucci, F Petschull, D Petteni, M Pezoa, R Phan, A Phillips, AW Phillips, PW Piacquadio, G Piccaro, E Piccinini, M Pickford, A Piec, SM Piegaia, R Pitcher, JE Pilkington, AD Pina, J Pinamonti, M Pinder, A Pinfold, JL Ping, J Pinto, B Pirotte, O Pizio, C Placakyte, R Plamondon, M Plano, WG Pleier, MA Pleskach, AV Poblaguev, A Poddar, S Podlyski, E Poggioli, L Poghosyan, T Pohl, M Polci, F Polesello, G Policicchio, A Polini, A Poll, J Polychronakos, V Pomarede, DM Pomeroy, D Pommes, K Pontecorvo, L Pope, BG Popeneciu, GA Popovic, DS Poppleton, A Bueso, XP Porter, R Posch, C Pospelov, GE Pospisil, S Potrap, IN Potter, CJ Potter, CT Poulard, G Poveda, J Prabhu, R Pralavorio, R Prasad, S Pravahan, R Prell, S Pretzl, K Pribyl, L Price, D Price, LE Price, MJ Prichard, PM Prieur, D Primavera, M Prokofiev, K Prokoshin, F Protopopescu, S Proudfoot, J Prudent, X Przysiezniak, H Psoroulas, S Ptacek, E Purdham, J Purohitv, M Puzo, P Pylypchenko, Y Qian, J Qian, Z Qin, Z Quadt, A Quarrie, DR Quayle, WB Quinonez, F Raas, M Radescu, V Radics, B Rador, T Ragusa, F Rahal, G Rahimi, AM Rahm, D Rajagopalan, S Rammensee, M Rammes, M Ramstedt, M Randrianarivony, K Ratoff, PN Rauscher, F Rauter, E Raymond, M Read, AL Rebuzzi, DM Redelbach, A Redlinger, G
Copyright, Publisher and Additional Information:	© 2016 Elsevier. This is an author produced version of a paper subsequently published in Physics Letters B. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/)
Keywords:	W production; Charge asymmetry; Parton distribution function; Muon decay mode; PARTON DISTRIBUTIONS; CROSS-SECTION
Dates:	Accepted: 12 May 2011 Published: 27 June 2011
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	02 Dec 2016 12:43
Last Modified:	02 Dec 2016 12:43
Published Version:	https://doi.org/10.1016/j.physletb.2011.05.024
Status:	Published
Publisher:	Elsevier
Refereed:	Yes
Identification Number:	https://doi.org/10.1016/j.physletb.2011.05.024

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Measurement of the W charge asymmetry in the W -> mu nu decay mode in pp collisions at root s=7 TeV with the ATLAS detector

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