Measurement of the Z/γ * boson transverse momentum distribution in pp collisions at s = 7 $$ \sqrt{s}=7 $$ TeV with the ATLAS detector

G Aad,V Cindro,H Weits,B Nicquevert,J Dingfelder,F Alonso,R Cantrill,S Constantinescu,J A Klinger,M A Parker,M Bindi,M Wu,A Khodinov,R Vari,A J Lankford,S Maltezos,N Makovec,V Ippolito,M Morii,S Caron,E Berglund,W Mohr,M W Wolter,J G Panduro Vazquez,W Fedorko,I Aracena,F Dudziak,F Luehring,V Nikolaenko,Z Gecse,O Nackenhorst,D Short,U Soldevila,R C W Henderson,C Schwanenberger,M Ishitsuka,M Hauschild,C Padilla Aranda,V Tsulaia,F Bertolucci,C A Chavez Barajas,C Rudolph,K Bristow,K Copic,M Suk,D Macina,H H Williams,C Guyot,M Demichev,M Kuna,A S Boldyrev,N Konstantinidis,B Jackson,F Berghaus,W B Quayle,S De Cecco,C Isaksson,G Brown,R Kehoe,S Mergelmeyer,F Barreiro,S Kaneti,E Guido,S Li,B E Cox,J Llorente Merino,J A Benitez Garcia,H Takai,C W Black,E Lipeles,L Y Shan,E Coniavitis,R Turra,B Gorini,S Bentvelsen,K Liu,J Z Will,T Nakamura,S Strandberg,T Takeshita,A L Maslennikov,Y Cheng,P Anger,S C Lee,K Wang,A Forti,A G Goussiou,M Proissl,A A Minaenko,J P Rutherfoord,A A Komar,T A Martin,H Peng,P Balek,D Lopez Mateos,A Soloshenko,S Caughron,K Potamianos,D Pallin,L Di Ciaccio,S M Consonni,M Dris,D Fortin,J Khubua,Y Rozen,S Monzani,S N Karpov,T Del Prete,N E Pettersson,O L Rezanova,O Smirnova,D Tsionou,A I Etienvre,A Madsen,A Corso-Radu,T P A Åkesson,A Gabrielli,F Vannucci,I Sadeh,V Bansal,W Cleland,F Ahmadov,F Paige,L Li,D Zhang,V A Kramarenko,E Ideal,K Lantzsch,L Tremblet,A Antonaki,S Goldfarb,C Meyer,R W L Jones,H Lee,W Wiedenmann,I Chalupkova,T Vu Anh,L M Mir,C N Marques,J Machado Miguens,S Tokár,N Ghodbane,W J Murray,B Mandelli,T Beau,M Nessi,J F Marchand,C Hensel,A M Soukharev,C Melachrinos,T Serre,Y Oren,M Cristinziani,E Busato,P Klimek,J Brosamer,G Volpi,A Vogel,D Schaefer,S Becker,G Sciolla,O Arslan,J Kirk,S White,A Salamon,A Strandlie,D Muenstermann,C F Anders,Q Ouyang,L Smestad,S Turchikhin,J B Hansen,P Dondero,A C Schaffer,J T Baines,A Ruschke,C Alpigiani,J P Thomas,J Beringer,J Ye,Z Hajduk,R Santonico,N Soni,G Gonzalez Parra,P C Van Der Deijl,S A Stucci,J R Catmore,T Harenberg,W C Fisher,A Coccaro,H Kim,S Patricelli,G H Herbert,E Higón-Rodriguez,J Hobbs,C M Delitzsch,M Testa,J Kanzaki,L Nodulman,F Huegging,A Amorim,U Schnoor,O A Ducu,H Ten Kate,M Boehler,H Wolters,V Canale,G Sartisohn,O Abdinov,E Yatsenko,C Ferretti,R Klingenberg,B Schneider,P Farthouat,O Zenin,G Arabidze,A Vartapetian,V B Vinogradov,C Rembser,K Yamauchi,Y Yasu,F Anulli,J E García Navarro,J Wetter,C David,L Mijović,X Ju,A Ashkenazi,I Caprini,O Beltramello,J R Bensinger,L Iconomidou-Fayard,F Guescini,L Serin,S Terada,L Barak,H Merritt,H Otono,A Romaniouk,D Costanzo,J Schaarschmidt,M Crispin Ortuzar,A Meade,M Hamer,K Bachas,S Shushkevich,R Stamen,B Butler,H S Bawa,I Bloch,S Cheatham,D Quilty,R P Middleton,R Peschke,N Amram,M Lehmacher,J Stark,B Walsh,M P Goulette,J Abdallah,B Dechenaux,S Valentinetti,R Tanaka,A P Colijn,P Waller,M Wessels,K Kawagoe,J Jongmanns,P Fassnacht,N Van Eldik,J Cochran,S Schaetzel,S J Sekula,E Magradze,J Cummings,P Radloff,T M Hong,G H Lewis,R Sadykov,A Floderus,A Boveia,M Ridel,R Madar,S Haug,M Janus,S Trincaz-Duvoid,R J Falla,J Boek,M Nomachi,M C Van Woerden,E Kladiva,T Ženiš,S Stonjek,A Pacheco Pages,C Haber,R J Hawkings,U Blumenschein,Y Hasegawa,C B Gwilliam,J Meyer,D M Rebuzzi,M Campanelli,T Buanes,D Hall,C Glasman,C J Potter,E Khramov,M Nozaki,D Bertsche,C Schillo,J Walder,S Hassani,G Polesello,M Zeman,G Fletcher,Y A Kurochkin,P V Tsiareshka,K Pachal,V P Maleev,R Piegaia,S Bressler,C Bacci,M George,J Taenzer,J Proudfoot,C Dionisi,T Kono,P Buchholz,V Pleskot,D Giugni,A Dafinca,J M Iturbe Ponce,M Düren,T M Bristow,M Kaci,R Schwienhorst,A Kruse,C Bini,M Fiascaris,C Wiglesworth,L Dell’Asta,M Battistin,K E Varvell,A Lister,B Zhou,V Polychronakos,G T Fletcher,R Aben,S Binet,J E Sundermann,S Pires,E Ritsch,J C Hill,P F Harrison,H J Maddocks,I Van Vulpen,M Schott,E Tiouchichine,V Grassi,G A Stewart,A L Read,E Scifo,H Esch,M Bruschi,A Ferrer,B Giacobbe,M D Joergensen,D Fournier,D Krasnopevtsev,B Cole,K Peters,L Mapelli,V S Bobrovnikov,A Loginov,O Sidiropoulou,T Theveneaux-Pelzer,K H Hiller,D Fassouliotis,A Sfyrla,H Von Radziewski,J R Pater,S J Wollstadt,I Massa,M Morgenstern,X Lou,S Kazama,N Berger,S Gadatsch,A Qureshi,B Liberti,U Parzefall,R Moles-Valls,K W Mcfarlane,B Pinto,T Lecompte,K Whalen,W A Leight,S Tapprogge,J Olszowska,G Costa,A Ereditato,C C Chau,K Lohwasser,J Lorenz,B K B Chow,M Rose,C Pahl,M Verducci,S Cole,S.-C Hsu,R Leitner,M Ugland,L Batkova,G Artoni,N Ruthmann,J R Goddard,P De Jong,R Mandrysch,X Portell Bueso,A E Kiryunin,J D Morris,Y V Grishkevich,R L Bates,L Adamczyk,K Mahboubi,G Ernis,T Loddenkoetter,J R Carter,G Mirabelli,G Lenzen,M Dell’Orso,K Uchida,R Vuillermet,L March,M Romano,G Mc Goldrick,B Mindur,A Koutsman,S Swedish,E G Tskhadadze,B Spurlock,R Caputo,L Aperio Bella,T Todorov,H Y Song,A A Talyshev,T Andeen,C Roda,F Legger,M Fanti,Th D Papadopoulou,N Asbah,K Hamacher,A Brandt,H A Gordon,E Mountricha,B G Fulsom,D Malon,V Rossetti,S Nowak,L Perini,U De Sanctis,A Rozanov,L Yao,M Hance,G H A Viehhauser,A Lewis,M Mineev,K Becker,S Kreiss,K Belotskiy,M R Hoeferkamp,M Elsing,G Alexandre,T Kruker,D Tsybychev,N F Castro,F Fassi,K Cranmer,M Shiyakova,Y Coadou,G Salamanna,T Kitamura,V Scharf,J A Aguilar-Saavedra,C O Shimmin,A C Florez Bustos,R Caminal Armadans,H P Skottowe,H Torres,G Amundsen,V Dao,J Montejo Berlingen,E W Hughes,J Bilbao De Mendizabal,C Galea,L Alio,K Yoshihara,M Alhroob,C Rangel-Smith,L Lambourne,I Angelozzi,M Neumann,V Kartvelishvili,D Schouten,A Di Simone,W Taylor,Y Qin,A Dimitrievska,G Bella,J Guo,S Tsuno,S H Oh,Y Hernández Jiménez,K Sliwa,E Graziani,R Engelmann,A Gershon,A Salzburger,C Zimmermann,Y Okumura,T Nattermann,I Koletsou,G Compostella,R Sandstroem,D Amidei,R Beccherle,E Le Guirriec,D O Jamin,S Gozpinar,A Grohsjean,A Dudarev,A Rimoldi,Y Sakurai,D Van Der Ster,J S Webster,S T French,F Scuri,V Perez Reale,K Yorita,B E Lindquist,D M Gingrich,M Purohit,H Oberlack,L Graber,S Shimizu,P A Wijeratne,M El Kacimi,S Rolli,M Jimenez Belenguer,V Sanchez Martinez,R Keeler,U Landgraf,M Fincke-Keeler,J Erdmann,A S Hard,R Richter,J Backus Mayes,F Lo Sterzo,F Djama,T A Dietzsch,L Zhang,H Severini,P Calafiura,B Li,N Huseynov,M A L Leite,M J Schultens,S Pedraza Lopez,E Brost,S L Lloyd,J Mitrevski,P F Giraud,S Diglio,Ch Geich-Gimbel,S Chen,B J O’Brien,B Penning,M Negrini,M Volpi,H Fox,T Naumann,Y Yamaguchi,C Suhr,M Hohlfeld,P Rieck,M G Alviggi,A R Stradling,D Chakraborty,F S Merritt,D Cavalli,P Catastini,V Tsiskaridze,D Kisielewska,Y Inamaru,C Leggett,M Rammensee,S Chouridou,P Weigell,X Hu,J F Laporte,H Boterenbrood,J Kroseberg,S Mehlhase,A Chitan,P Morettini,A G Buckley,G Crosetti,N Triplett,M Heller,K-J Grahn,D Hu,A A Grillo,G Iacobucci,J Groth-Jensen,A Di Girolamo,L Jeanty,B A Petersen,D Harper,T Lagouri,P O Deviveiros,Z Vykydal,H L Tran,K Pajchel,M Slater,G Stoicea,S W Weber,D O Savu,A T Watson,M A B Do Vale,M Dührssen,M Beckingham,R K Daya-Ishmukhametova,L De Nooij,A A Solodkov,D Francis,Q Buat,J Boudreau,A J Brennan,P J Bell,K J 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Goblirsch-Kolb,I Dawson,L Masetti,G Tsipolitis,V Giangiobbe,V Khovanskiy,E Rizvi,U Mallik,C Cuthbert,K J C Leney,T Cao,F Scutti,S Feigl,W S Lockman,C Goy,J J Chwastowski,D Urbaniec,M C Vetterli,B Di Girolamo,E Petit,A Gorišek,Y Ninomiya,F Cerutti,J Pearce,D Barberis,R Ferrari,N D Topilin,L Manhaes De Andrade Filho,A Salvucci,E V Bouhova-Thacker,F Hartjes,J Rothberg,J Lacey,P Calfayan,E Pueschel,S Cabrera Urbán,J Mamuzic,G Anders,P Nilsson,J Cantero,S Borroni,S Migas,Z Czyczula,P S Wells,T Tashiro,C Sandoval,C Sbarra,G Cree,J Price,H S Bansil,I Brock,K E Johansson,F Touchard,T Lari,H P Beck,A G Olchevski,P F Klok,J Kunkle,A Schwartzman,S Majewski,A J Armbruster,M Vreeswijk,K Toms,B T King,J A Mcfayden,M Begel,A F Saavedra,S Kuday,P Steinberg,K Desch,L Rehnisch,C Maidantchik,V Bartsch,L Lee,A J Barr,J Schwindling,V Garonne,A Nelson,J Godlewski,A C König,S Tarem,K Bierwagen,G Galster,S Chekanov,F Conventi,S Wahrmund,G G Hesketh,C Dallapiccola,M Antonelli,E J Feng,N Meric,P Pralavorio,S Burdin,C Wasicki,A T Doyle,G Duckeck,H Chen,R Reece,C Bertella,M Nagel,T Alexopoulos,C Oropeza Barrera,N Karastathis,S George,D Levin,R L Mccarthy,L Shi,T Kohriki,T Berry,E Von Toerne,O Jinnouchi,D Orestano,J Schieck,S Leontsinis,R Ströhmer,W Trischuk,G A Popeneciu,R Di Nardo,A Bassalat,C Schmitt,D Scheirich,P True,J Bouffard,D Silverstein,T T Boek,I Gorelov,D Moreno,F Winklmeier,M Della Pietra,I L Gavrilenko,J Ebke,R Pezoa,A Do Valle Wemans,T Javůrek,P Jussel,M Jackson,M Leyton,H Pernegger,Z Yan,A Basye,J Dubbert,C Doglioni,R Lafaye,J P Araque,N Javadov,C Tsarouchas,D M Seliverstov,V Vercesi,S Poddar,F Parodi,P Dervan,M C Kruse,Yu A Tikhonov,L Mandelli,B Simmons,D Ventura,S Leone,M J Da Cunha Sargedas De Sousa,T Kondo,G Spigo,T Kawamoto,E Tassi,G Gaudio,P Teixeira-Dias,J Faltova,M Davies,E A Fitzgerald,J Thomas-Wilsker,T Bain,G Redlinger,H Ghazlane,R Brock,F Linde,R Konoplich,B Stelzer,N Anjos,F Friedrich,L Poggioli,M Werner,N Panikashvili,R Hanna,T J Khoo,A A E Bannoura,A Sansoni,C Troncon,G Brooijmans,I Burmeister,D Calvet,D Duda,C Schiavi,M Sandhoff,O Rosenthal,A Lipniacka,M Vlasak,A Kaczmarska,E Etzion,M D M Capeans Garrido,A Zaman,G F Tartarelli,Y Unno,V Izzo,G Cortiana,H Arnold,K Sapp,T Hayashi,T P S Gillam,L Guan,R Hickling,C P Bee,M Cooke,S V Mouraviev,K Leonhardt,I Watanabe,J L Pinfold,H S Hayward,M J Alconada Verzini,F Siegert,T B Huffman,C Heller,G Rybkin,F Hariri,G Kramberger,T C Rave,E Thomson,L Hooft Van Huysduynen,K Ikematsu,J Elmsheuser,J C Vermeulen,G Alimonti,S Falciano,S Bedikian,S Ferrag,R Narayan,S Spagnolo,D Della Volpe,J Moss,M Ziolkowski,K Gregersen,L La Rotonda,K Mochizuki,A Warburton,R Wall,K Bos,N A Styles,J Almond,S Norberg,S Jézéquel,E Dubreuil,S A Olivares Pino,Y Bai,A Andreazza,F Veloso,L Luminari,F Malek,A White,Y S Gao,B Åsman,E Protopapadaki,G Alexander,C Bourdarios,T Mitani,M Corradi,F Podlyski,T Mueller,V Sipica,H Schulz,J Fuster,M Cobal,J I Hofmann,G Zurzolo,T Matsushita,S Schaepe,M Zur Nedden,L Cerrito,J Huth,R Takashima,G 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Антонов ,I Grabowska-Bołd ,N Öztürk ,Feng Tian ,M Marčišovský ,M Taševský ,T Blažek ,Ç İşsever ,Tom Neep ,A Llères ,P Šı́cho ,T Löhse ,J Böhm ,D S Popović ,A Randle-Conde ,S Banerjee ,J Linnemann ,M A Pleier ,П Б Шаталов ,K Johns ,Fangjun Lu ,M Przybycień ,F Muêller ,J Schovancová ,W Iwański ,S Dubé ,M A Díaz ,Han Liu ,A M Zaǐtsev ,M Trzebiński ,B Le ,I Sýkora ,S Henrot-Versillé ,J Krstić ,C Clément ,C Bélanger-Champagne ,J Pína ,R Kass ,O Çakır ,Lj Simić ,S Martí-García ,S Cŕéṕe-Renaudin ,Steffen Staerz ,C Schröeder ,P Diţâ ,M Weber ,G Y Jeng ,K Černý ,T Mäshimo ,C Bécot ,M Marjanović ,M Pałka ,Z Doležal ,S Iştin ,А Хорошилов ,Zhou Liu ,M Dwužnik ,B Żabiński ,E Le Ménédeu ,P Y Nechaeva ,R Brunelière ,C Böhm ,M Hrabovský ,S Pospı́šil ,C Royon ,F Déliot ,T Bołd ,H L Zhu ,M Costa ,P Kodyš ,H.‐C Schultz‐Coulon ,В М Малышев ,J Šolc ,K Wong ,K W Woźniak ,I Türk Cakir ,S Diţă ,Satoshi Tanaka ,M Smižanská ,L Hervás ,T Sýkora ,P Pluciński ,J K Behr ,M Bóna ,J Muêller ,I Mandić ,M Mikeštíková ,A Robichaud-Véronneau ,A Ruiz-Martínez ,A Bundock ,Š Todorova-Nová ,Г Е Поспелов ,F Kiss ,K Skovpen ,B Mansoulié ,J Hřivnáč ,L Caminada ,И Н Александров ,M Myška ,B Lund‐Jensen ,Hiroshi Takeda ,L L ,C Gütschow ,W Dąbrowski ,Peter Hansen ,D Nguyen ,M Dyndał ,J Antos̆ ,C Garćıa ,E Górnicki ,J Mašík ,E Banaś ,I Vukotić ,Masaki Endo ,J Tóth ,D Tureček ,M Villaplana Pérez ,M Svatoš ,P Vokáč ,Κ Παπαγεωργίου ,J De Vivie De B Regie ,Ø Dale ,S A Çetin ,H S Subramania ,V I Ruď ,M Arık ,F Ë Taylor ,Dj Šijački ,С Тимошенко ,G Pásżtor ,M Cavalli‐Sforza ,D Yu ,L Rossi ,S González-Sevilla ,R Lysák ,Š Valkár ,P Gutiérrez ,В А Коротков ,L Valéry ,L P Calôba ,P Némethy ,T Kühl ,И И Цукерман ,I López Paz ,À Zoccoli ,P Stríženec ,D Šálek ,V Šimák ,J Dassoulas ,V Sorı́n ,M Lokajı́ček ,A Filipčǐc ,H Öhman ,M Lévy ,В Ф Казанин ,S Němeček ,M Červ ,J Terrón ,O M Kind ,P Conde Muíño ,J Braciník ,B Álvarez González ,K Jon‐And ,J Große-Knetter ,R Çiftçi ,T Davídek ,D Strom ,C Stănescu ,P Řezníček ,T Šfiligoj ,A K Çiftçi ,J Jakůbek ,Charlie Young ,P Bartoš ,T Agatonović-Jovin ,Yuan Li ,G Ünel ,B C Cerio ,M Bessner ,T Ekelöf ,L Nožka

doi:10.1007/jhep09(2014)145

Abstract

This paper describes a measurement of the $Z/\gamma^*$ boson transverse momentum spectrum using ATLAS proton-proton collision data at a centre-of-mass energy of $\sqrt{s}$ = 7 TeV at the LHC. The measurement is performed in the $Z/\gamma^* \rightarrow e^+e^-$ and $Z/\gamma^* \rightarrow \mu^+\mu^-$ channels, using data corresponding to an integrated luminosity of 4.7 fb$^{-1}$. Normalized differential cross sections as a function of the $Z/\gamma^*$ boson transverse momentum are measured for transverse momenta up to 800 GeV. The measurement is performed inclusively for $Z/\gamma^*$ rapidities up to 2.4, as well as in three rapidity bins. The channel results are combined, compared to perturbative and resummed QCD calculations and used to constrain the parton shower parameters of Monte Carlo generators.

Highlights

Background processes includeW ± → ±ν, Z → τ +τ − and bb, cc → ± + X and are generated with Pythia6-AUET2B
The total uncertainty is between 0.5% and 1% for pZT < 30 GeV, below 1.5% per bin up to pZT = 150 GeV and rises to 7% at the end of the spectrum
In order to compensate for the changes in energy and particle flow induced by the modifications in the parton shower and primordial kT parameters, the pT threshold for the QCD 2 → 2 scattering processes used in multiple parton interactions (MPI) is changed from 2.085 GeV to 2.18 GeV for Pythia8, following the underlying event data measured in Drell-Yan events by ATLAS [54]

Summary

QCD predictions

The measurements are compared to a representative set of theoretical predictions They rely on perturbative QCD (pQCD) only, or include resummation of soft-gluon emissions. The ResBos calculation relies on soft-gluon resummation at low pZT and matches the O(αS2) cross section at high pZT. It simulates the vector boson decays but does not include a description of the hadronic activity in the event. The Pythia [2] and Herwig [3] generators use the parton shower approach to describe the low-pZT region and include an O(αS) matrix element for the emission of one hard parton.

The ATLAS detector

Event simulation

Event reconstruction and selection

Background estimation

Unfolding and systematic uncertainties

Results

Comparison to QCD predictions

Background

11 Conclusion

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Journal: Journal of High Energy Physics	Publication Date: Sep 1, 2014
Citations: 192	License type: cc-by

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Measurement of the Z/γ * boson transverse momentum distribution in pp collisions at s = 7 $$ \sqrt{s}=7 $$ TeV with the ATLAS detector

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Measurement of the Z/γ * boson transverse momentum distribution in pp collisions at s = 7 $$ \sqrt{s}=7 $$ TeV with the ATLAS detector

Abstract

Highlights

Summary

Talk to us

Similar Papers

More From: Journal of High Energy Physics