Inclusive W and Z production in the forward region at root s=7TeV

Aaij, R.; Beteta, C. A.; Adametz, A.; Adeva, B.; Adinolfi, M.; Adrover, C.; Affolder, A.; Ajaltouni, Z.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Cartelle, P. A.; Alves, A. A.; Amato, S.; Amhis, Y.; Anderson, J.; Appleby, R. B.; Gutierrez, O. A.; Archilli, F.; Artamonov, A.; Artuso, M.; Aslanides, E.; Auriemma, G.; Bachmann, S.; Back, J. J.; Balagura, V.; Baldini, W.; Barlow, R. J.; Barschel, C.; Barsuk, S.; Barter, W.; Bates, A.; Bauer, C.; Bauer, T.; Bay, A.; Beddow, J.; Bediaga, I.; Belogurov, S.; Belous, K.; Belyaev, I.; Ben Haim, E.; Benayoun, M.; Bencivenni, G.; Benson, S.; Benton, J.; Bernet, R.; Bettler, M. O.; Beuzekom, M. V.; Bien, A.; Bifani, S.; Bird, T.; Bizzeti, A.; Bjornstad, P. M.; Blake, T.; Blanc, F.; Blanks, C.; Blouw, J.; Blusk, S.; Bobrov, A.; Bocci, V.; Bondar, A.; Bondar, N.; Bonivento, W.; Borghi, S.; Borgia, A.; Bozzi, C.; Brambach, T.; Den, J. V.; Bressieux, J.; Brett, D.; Britsch, M.; Britton, T.; Brook, N. H.; Brown, H.; Buchler Germann, A.; Burducea, I.; Bursche, A.; Buytaert, J.; Cadeddu, S.; Callot, O.; Calvi, M.; Gomez, M. C.; Camboni, A.; Campana, P.; Carbone, A.; Carboni, G.; Cardinale, R.; Cardini, A.; Carson, L.; Akiba, K. C.; Casse, G.; Cattaneo, M.; Cauet, C.; Charles, M.; Charpentier, P.; Chiapolini, N.; Chrzaszcz, M.; Ciba, K.; Vidal, X. C.; Ciezarek, G.; Clemencic, M.; Cliff, H. V.; Closier, J.; Coca, C.; Coco, V.; Cogan, J.; Cogneras, E.; Collins, P.; Comerma Montells, A.; Contu, A.; Cook, A.; Coombes, M.; Corti, G.; Couturier, B.; Cowan, G. A.; Currie, R.; D'Ambrosio, C.; David, P.; Bonis, I. D.; Bruyn, K. D.; Capua, S. D.; Cian, M. D.; J. M., De; Paula, L. D.; Simone, P. D.; Decamp, D.; Deckenhoff, M.; Degaudenzi, H.; Buono, L. D.; Deplano, C.; Derkach, D.; Deschamps, O.; Dettori, F.; Dickens, J.; Dijkstra, H.; Batista, P. D.; Bonal, F. D.; Donleavy, S.; Dordei, F.; Suarez, A. D.; Dossett, D.; Dovbnya, A.; Dupertuis, F.; Dzhelyadin, R.; Dziurda, A.; Dzyuba, A.; Easo, S.; Egede, U.; Egorychev, V.; Eidelman, S.; Eijk, D. V.; Eisele, F.; Eisenhardt, S.; Ekelhof, R.; Eklund, L.; Elsasser, C.; Elsby, D.; Pereira, D. E.; Falabella, A.; Farber, C.; Fardell, G.; Farinelli, C.; Farry, S.; Fave, V.; Albor, V. F.; Ferro Luzzi, M.; Filippov, S.; Fitzpatrick, C.; Fontana, M.; Fontanelli, F.; Forty, R.; Francisco, O.; Frank, M.; Frei, C.; Frosini, M.; Furcas, S.; Torreira, A. G.; Galli, D.; Gandelman, M.; Gandini, P.; Gao, Y.; Garnier, J. C.; Garofoli, J.; Tico, J. G.; Garrido, L.; Gascon, D.; Gaspar, C.; Gauld, R.; Gauvin, N.; Gersabeck, M.; Gershon, T.; Ghez, P.; Gibson, V.; Gligorov, V. V.; Goebel, C.; Golubkov, D.; Golutvin, A.; Gomes, A.; Gordon, H.; Gandara, M. G.; Diaz, R. G.; Grauges, E.; Graziani, G.; Grecu, A.; Greening, E.; Gregson, S.; Gruenberg, O.; Gui, B.; Gushchin, E.; Guz, Y.; Gys, T.; Hadjivasiliou, C.; Haefeli, G.; Haen, C.; Haines, S. C.; Hampson, T.; Hansmann Menzemer, S.; Harnew, N.; Harrison, J.; Harrison, P. F.; Hartmann, T.; He, J.; Heijne, V.; Hennessy, K.; Henrard, P.; Herwijnen, E. V.; Hicks, E.; Holubyev, K.; Hopchev, P.; Hulsbergen, W.; Hunt, P.; Huse, T.; Huston, R. S.; Hutchcroft, D.; Hynds, D.; Iakovenko, V.; Ilten, P.; Imong, J.; Jacobsson, R.; Jaeger, A.; Hussein, M. J.; Jans, E.; Jansen, F.; Jaton, P.; Jean Marie, B.; Jing, F.; John, M.; Johnson, D.; Jones, C. R.; Jost, B.; Kaballo, M.; Kandybei, S.; Karacson, M.; Karbach, T. M.; Keaveney, J.; Kenyon, I. R.; Kerzel, U.; Ketel, T.; Keune, A.; Khanji, B.; Kim, Y. M.; Knecht, M.; Komarov, I.; Koopman, R. F.; Koppenburg, P.; Korolev, M.; Kozlinskiy, A.; Kravchuk, L.; Kreplin, K.; Kreps, M.; Krocker, G.; Krokovny, P.; Kruse, F.; Kruzelecki, K.; Kucharczyk, M.; Kudryavtsev, V.; Kvaratskheliya, T.; V. N., La; Lacarrere, D.; Lai, A.; Lambert, D.; Lambert, R. W.; Lanciotti, E.; Lanfranchi, G.; Langenbruch, C.; Latham, T.; Lazzeroni, C.; Gac, R. L.; Leerdam, J. V.; Lees, J. P.; Lefevre, R.; Leflat, A.; Lefrancois, J.; Leroy, O.; Lesiak, T.; Li, L.; Li, Y.; Gioi, L. L.; Lieng, M.; Liles, M.; Lindner, R.; Linn, C.; Liu, B.; Liu, G.; Loeben, J. V.; Lopes, J. H.; Asamar, E. L.; Lopez March, N.; Lu, H.; Luisier, J.; Raighne, A. M.; Machefert, F.; Machikhiliyan, I. V.; Maciuc, F.; Maev, O.; Magnin, J.; Malde, S.; Manca, G.; Mancinelli, G.; Mangiafave, N.; Marconi, U.; Marki, R.; Marks, J.; Martellotti, G.; Martens, A.; Martin, L.; Sanchez, A. M.; Martinelli, M.; Santos, D. M.; Massafferri, A.; Mathe, Z.; Matteuzzi, C.; Matveev, M.; Maurice, E.; Maynard, B.; Mazurov, A.; Mcgregor, G.; Mcnulty, R.; Meissner, M.; Merk, M.; Merkel, J.; Miglioranzi, S.; Milanes, D. A.; Minard, M. N.; Rodriguez, J. M.; Monteil, S.; Moran, D.; Morawski, P.; Mountain, R.; Mous, I.; Muheim, F.; Muller, K.; Muresan, R.; Muryn, B.; Muster, B.; Mylroie Smith, J.; Naik, P.; Nakada, T.; Nandakumar, R.; Nasteva, I.; Needham, M.; Neufeld, N.; Nguyen, A. D.; Nguyen Mau, C.; Nicol, M.; Niess, V.; Nikitin, N.; Nikodem, T.; Nomerotski, A.; Novoselov, A.; Oblakowska Mucha, A.; Obraztsov, V.; Oggero, S.; Ogilvy, S.; Okhrimenko, O.; Oldeman, R.; Orlandea, M.; Owen, P.; Pal, B. K.; Palacios, J.; Palano, A.; Palutan, M.; Panman, J.; Papanestis, A.; Pappagallo, M.; Parkes, C.; Parkinson, C. J.; Passaleva, G.; Patel, G. D.; Patel, M.; Paterson, S. K.; Patrick, G. N.; Patrignani, C.; Pavel Nicorescu, C.; Alvarez, A. P.; Pellegrino, A.; Penso, G.; Altarelli, M. P.; Perazzini, S.; Perego, D. L.; Trigo, E. P.; Perret, P.; Perrin Terrin, M.; Pessina, G.; Petrolini, A.; Phan, A.; Olloqui, E. P.; Valls, B. P.; Pietrzyk, B.; Pilar, T.; Pinci, D.; Plackett, R.; Playfer, S.; Casasus, M. P.; Polok, G.; Poluektov, A.; Polycarpo, E.; Popov, D.; Popovici, B.; Potterat, C.; Powell, A.; Prisciandaro, J.; Pugatch, V.; Navarro, A. P.; Qian, W.; Rademacker, J. H.; Rakotomiaramanana, B.; Rangel, M. S.; Raniuk, I.; Raven, G.; Redford, S.; Reid, M. M.; Dos, A. C.; Ricciardi, S.; Richards, A.; Rinnert, K.; Robbe, P.; Rodrigues, E.; Rodrigues, F.; Perez, P. R.; Rogers, G. J.; Roiser, S.; Romanovsky, V.; Rosello, M.; Rouvinet, J.; Ruf, T.; Ruiz, H.; Sabatino, G.; Sagidova, N.; Sail, P.; Saitta, B.; Salzmann, C.; Sannino, M.; Santacesaria, R.; Rios, C. S.; Santinelli, R.; Santovetti, E.; Sapunov, M.; Sarti, Alessio; Satriano, C.; Satta, A.; Savrie, M.; Savrina, D.; Schaack, P.; Schiller, M.; Schindler, H.; Schleich, S.; Schlupp, M.; Schmelling, M.; Schmidt, B.; Schneider, O.; Schopper, A.; Schune, M. H.; Schwemmer, R.; Sciascia, B.; Sciubba, Adalberto; Seco, M.; Semennikov, A.; Senderowska, K.; Sepp, I.; Serra, N.; Serrano, J.; Seyfert, P.; Shapkin, M.; Shapoval, I.; Shatalov, P.; Shcheglov, Y.; Shears, T.; Shekhtman, L.; Shevchenko, O.; Shevchenko, V.; Shires, A.; Coutinho, R. S.; Skwarnicki, T.; Smith, N. A.; Smith, E.; Smith, M.; Sobczak, K.; Solomin, A.; Soomro, F.; B. S., De; Spaan, B.; Sparkes, A.; Spradlin, P.; Stagni, F.; Stahl, S.; Steinkamp, O.; Stoica, S.; Stone, S.; Storaci, B.; Straticiuc, M.; Straumann, U.; Subbiah, V. K.; Swientek, S.; Szczekowski, M.; Szczypka, P.; Szumlak, T.; T'Jampens, S.; Teodorescu, E.; Teubert, F.; Thomas, C.; Thomas, E.; Tilburg, J. V.; Tisserand, V.; Tobin, M.; Tolk, S.; Topp Joergensen, S.; Torr, N.; Tournefier, E.; Tourneur, S.; Tran, M. T.; Tsaregorodtsev, A.; Tuning, N.; Garcia, M. U.; Ukleja, A.; Uwer, U.; Vagnoni, V.; Valenti, G.; Gomez, R. V.; Regueiro, P. V.; Vecchi, S.; Velthuis, J. J.; Veltri, M.; Viaud, B.; Videau, I.; Vieira, D.; Vilasis Cardona, X.; Visniakov, J.; Vollhardt, A.; Volyanskyy, D.; Voong, D.; Vorobyev, A.; Vorobyev, V.; Voss, C.; Voss, H.; Waldi, R.; Wallace, R.; Wandernoth, S.; Wang, J.; Ward, D. R.; Watson, N. K.; Webber, A. D.; Websdale, D.; Whitehead, M.; Wicht, J.; Wiedner, D.; Wiggers, L.; Wilkinson, G.; Williams, M. P.; Williams, M.; Wilson, F. F.; Wishahi, J.; Witek, M.; Witzeling, W.; Wotton, S. A.; Wright, S.; Wu, S.; Wyllie, K.; Xie, Y.; Xing, F.; Xing, Z.; Yang, Z.; Young, R.; Yuan, X.; Yushchenko, O.; Zangoli, M.; Zavertyaev, M.; Zhang, F.; Zhang, L.; Zhang, W. C.; Zhang, Y.; Zhelezov, A.; Zhong, L.; Zvyagin, A.

doi:10.1007/jhep06(2012)058

Measurements of inclusive W and Z boson production cross-sections in p p collisions at root s = 7TeV using final states containing muons are presented. The data sample corresponds to an integrated luminosity of 37 pb(-1) collected with the LHCb detector. The W and Z bosons are reconstructed from muons with a transverse momentum above 20 GeV/c and pseudorapidity between 2.0 and 4.5, and, in the case of the Z cross-section, a dimuon invariant mass between 60 and 120 GeV/c(2). The cross-sections are measured to be 831 +/- 9 +/- 27 +/- 29 pb for W+, 656 +/- 8 +/- 19 +/- 23 for W- and 76.7 +/- 1.7 +/- 3.3 +/- 2.7 pb for Z, where the first uncertainty is statistical, the second is systematic and the third is due to the luminosity. Differential cross-sections, W and Z cross-section ratios and the lepton charge asymmetry are also measured in the same kinematic region. The ratios are determined to be sigma W+->mu(+)nu/sigma W-->mu-(nu) over bar = 1.27 +/- 0.02 +/- 0.01 and (sigma W+->mu+nu+sigma W-->mu-(nu) over bar)/sigma Z ->mu mu = 19.4 +/- 0.5 +/- 0.9. The results are in general agreement with theoretical predictions, performed at next-to-next-to-leading order in QCD using recently calculated parton distribution functions.

Inclusive W and Z production in the forward region at root s=7TeV / R., A., C. A., B., A., A., B., A., M., A., C., A., A., A., Z., A., J., A., F., A., M., A., S., A., G., A., P. A., C., A. A., A., S., A., Y., A., J., A., R. B., A., O. A., G., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2012:6(2012), p. 058. [10.1007/jhep06(2012)058]

Inclusive W and Z production in the forward region at root s=7TeV

R. Aaij;C. A. Beteta;A. Adametz;B. Adeva;M. Adinolfi;C. Adrover;A. Affolder;Z. Ajaltouni;J. Albrecht;F. Alessio;M. Alexander;S. Ali;G. Alkhazov;P. A. Cartelle;A. A. Alves;S. Amato;Y. Amhis;J. Anderson;R. B. Appleby;O. A. Gutierrez;F. Archilli;A. Artamonov;M. Artuso;E. Aslanides;G. Auriemma;S. Bachmann;J. J. Back;V. Balagura;W. Baldini;R. J. Barlow;C. Barschel;S. Barsuk;W. Barter;A. Bates;C. Bauer;T. Bauer;A. Bay;J. Beddow;I. Bediaga;S. Belogurov;K. Belous;I. Belyaev;E. Ben Haim;M. Benayoun;G. Bencivenni;S. Benson;J. Benton;R. Bernet;M. O. Bettler;M. V. Beuzekom;A. Bien;S. Bifani;T. Bird;A. Bizzeti;P. M. Bjornstad;T. Blake;F. Blanc;C. Blanks;J. Blouw;S. Blusk;A. Bobrov;V. Bocci;A. Bondar;N. Bondar;W. Bonivento;S. Borghi;A. Borgia;C. Bozzi;T. Brambach;J. V. Den;J. Bressieux;D. Brett;M. Britsch;T. Britton;N. H. Brook;H. Brown;A. Buchler Germann;I. Burducea;A. Bursche;J. Buytaert;S. Cadeddu;O. Callot;M. Calvi;M. C. Gomez;A. Camboni;P. Campana;A. Carbone;G. Carboni;R. Cardinale;A. Cardini;L. Carson;K. C. Akiba;G. Casse;M. Cattaneo;C. Cauet;M. Charles;P. Charpentier;N. Chiapolini;M. Chrzaszcz;K. Ciba;X. C. Vidal;G. Ciezarek;M. Clemencic;H. V. Cliff;J. Closier;C. Coca;V. Coco;J. Cogan;E. Cogneras;P. Collins;A. Comerma Montells;A. Contu;A. Cook;M. Coombes;G. Corti;B. Couturier;G. A. Cowan;R. Currie;C. D'Ambrosio;P. David;I. D. Bonis;K. D. Bruyn;S. D. Capua;M. D. Cian;J. M. De;L. D. Paula;P. D. Simone;D. Decamp;M. Deckenhoff;H. Degaudenzi;L. D. Buono;C. Deplano;D. Derkach;O. Deschamps;F. Dettori;J. Dickens;H. Dijkstra;P. D. Batista;F. D. Bonal;S. Donleavy;F. Dordei;A. D. Suarez;D. Dossett;A. Dovbnya;F. Dupertuis;R. Dzhelyadin;A. Dziurda;A. Dzyuba;S. Easo;U. Egede;V. Egorychev;S. Eidelman;D. V. Eijk;F. Eisele;S. Eisenhardt;R. Ekelhof;L. Eklund;C. Elsasser;D. Elsby;D. E. Pereira;A. Falabella;C. Farber;G. Fardell;C. Farinelli;S. Farry;V. Fave;V. F. Albor;M. Ferro Luzzi;S. Filippov;C. Fitzpatrick;M. Fontana;F. Fontanelli;R. Forty;O. Francisco;M. Frank;C. Frei;M. Frosini;S. Furcas;A. G. Torreira;D. Galli;M. Gandelman;P. Gandini;Y. Gao;J. C. Garnier;J. Garofoli;J. G. Tico;L. Garrido;D. Gascon;C. Gaspar;R. Gauld;N. Gauvin;M. Gersabeck;T. Gershon;P. Ghez;V. Gibson;V. V. Gligorov;C. Goebel;D. Golubkov;A. Golutvin;A. Gomes;H. Gordon;M. G. Gandara;R. G. Diaz;E. Grauges;G. Graziani;A. Grecu;E. Greening;S. Gregson;O. Gruenberg;B. Gui;E. Gushchin;Y. Guz;T. Gys;C. Hadjivasiliou;G. Haefeli;C. Haen;S. C. Haines;T. Hampson;S. Hansmann Menzemer;N. Harnew;J. Harrison;P. F. Harrison;T. Hartmann;J. He;V. Heijne;K. Hennessy;P. Henrard;E. V. Herwijnen;E. Hicks;K. Holubyev;P. Hopchev;W. Hulsbergen;P. Hunt;T. Huse;R. S. Huston;D. Hutchcroft;D. Hynds;V. Iakovenko;P. Ilten;J. Imong;R. Jacobsson;A. Jaeger;M. J. Hussein;E. Jans;F. Jansen;P. Jaton;B. Jean Marie;F. Jing;M. John;D. Johnson;C. R. Jones;B. Jost;M. Kaballo;S. Kandybei;M. Karacson;T. M. Karbach;J. Keaveney;I. R. Kenyon;U. Kerzel;T. Ketel;A. Keune;B. Khanji;Y. M. Kim;M. Knecht;I. Komarov;R. F. Koopman;P. Koppenburg;M. Korolev;A. Kozlinskiy;L. Kravchuk;K. Kreplin;M. Kreps;G. Krocker;P. Krokovny;F. Kruse;K. Kruzelecki;M. Kucharczyk;V. Kudryavtsev;T. Kvaratskheliya;V. N. La;D. Lacarrere;A. Lai;D. Lambert;R. W. Lambert;E. Lanciotti;G. Lanfranchi;C. Langenbruch;T. Latham;C. Lazzeroni;R. L. Gac;J. V. Leerdam;J. P. Lees;R. Lefevre;A. Leflat;J. Lefrancois;O. Leroy;T. Lesiak;L. Li;Y. Li;L. L. Gioi;M. Lieng;M. Liles;R. Lindner;C. Linn;B. Liu;G. Liu;J. V. Loeben;J. H. Lopes;E. L. Asamar;N. Lopez March;H. Lu;J. Luisier;A. M. Raighne;F. Machefert;I. V. Machikhiliyan;F. Maciuc;O. Maev;J. Magnin;S. Malde;G. Manca;G. Mancinelli;N. Mangiafave;U. Marconi;R. Marki;J. Marks;G. Martellotti;A. Martens;L. Martin;A. M. Sanchez;M. Martinelli;D. M. Santos;A. Massafferri;Z. Mathe;C. Matteuzzi;M. Matveev;E. Maurice;B. Maynard;A. Mazurov;G. Mcgregor;R. Mcnulty;M. Meissner;M. Merk;J. Merkel;S. Miglioranzi;D. A. Milanes;M. N. Minard;J. M. Rodriguez;S. Monteil;D. Moran;P. Morawski;R. Mountain;I. Mous;F. Muheim;K. Muller;R. Muresan;B. Muryn;B. Muster;J. Mylroie Smith;P. Naik;T. Nakada;R. Nandakumar;I. Nasteva;M. Needham;N. Neufeld;A. D. Nguyen;C. Nguyen Mau;M. Nicol;V. Niess;N. Nikitin;T. Nikodem;A. Nomerotski;A. Novoselov;A. Oblakowska Mucha;V. Obraztsov;S. Oggero;S. Ogilvy;O. Okhrimenko;R. Oldeman;M. Orlandea;P. Owen;B. K. Pal;J. Palacios;A. Palano;M. Palutan;J. Panman;A. Papanestis;M. Pappagallo;C. Parkes;C. J. Parkinson;G. Passaleva;G. D. Patel;M. Patel;S. K. Paterson;G. N. Patrick;C. Patrignani;C. Pavel Nicorescu;A. P. Alvarez;A. Pellegrino;G. Penso;M. P. Altarelli;S. Perazzini;D. L. Perego;E. P. Trigo;P. Perret;M. Perrin Terrin;G. Pessina;A. Petrolini;A. Phan;E. P. Olloqui;B. P. Valls;B. Pietrzyk;T. Pilar;D. Pinci;R. Plackett;S. Playfer;M. P. Casasus;G. Polok;A. Poluektov;E. Polycarpo;D. Popov;B. Popovici;C. Potterat;A. Powell;J. Prisciandaro;V. Pugatch;A. P. Navarro;W. Qian;J. H. Rademacker;B. Rakotomiaramanana;M. S. Rangel;I. Raniuk;G. Raven;S. Redford;M. M. Reid;A. C. Dos;S. Ricciardi;A. Richards;K. Rinnert;P. Robbe;E. Rodrigues;F. Rodrigues;P. R. Perez;G. J. Rogers;S. Roiser;V. Romanovsky;M. Rosello;J. Rouvinet;T. Ruf;H. Ruiz;G. Sabatino;N. Sagidova;P. Sail;B. Saitta;C. Salzmann;M. Sannino;R. Santacesaria;C. S. Rios;R. Santinelli;E. Santovetti;M. Sapunov;SARTI, ALESSIO;C. Satriano;A. Satta;M. Savrie;D. Savrina;P. Schaack;M. Schiller;H. Schindler;S. Schleich;M. Schlupp;M. Schmelling;B. Schmidt;O. Schneider;A. Schopper;M. H. Schune;R. Schwemmer;B. Sciascia;SCIUBBA, Adalberto;M. Seco;A. Semennikov;K. Senderowska;I. Sepp;N. Serra;J. Serrano;P. Seyfert;M. Shapkin;I. Shapoval;P. Shatalov;Y. Shcheglov;T. Shears;L. Shekhtman;O. Shevchenko;V. Shevchenko;A. Shires;R. S. Coutinho;T. Skwarnicki;N. A. Smith;E. Smith;M. Smith;K. Sobczak;A. Solomin;F. Soomro;B. S. De;B. Spaan;A. Sparkes;P. Spradlin;F. Stagni;S. Stahl;O. Steinkamp;S. Stoica;S. Stone;B. Storaci;M. Straticiuc;U. Straumann;V. K. Subbiah;S. Swientek;M. Szczekowski;P. Szczypka;T. Szumlak;S. T'Jampens;E. Teodorescu;F. Teubert;C. Thomas;E. Thomas;J. V. Tilburg;V. Tisserand;M. Tobin;S. Tolk;S. Topp Joergensen;N. Torr;E. Tournefier;S. Tourneur;M. T. Tran;A. Tsaregorodtsev;N. Tuning;M. U. Garcia;A. Ukleja;U. Uwer;V. Vagnoni;G. Valenti;R. V. Gomez;P. V. Regueiro;S. Vecchi;J. J. Velthuis;M. Veltri;B. Viaud;I. Videau;D. Vieira;X. Vilasis Cardona;J. Visniakov;A. Vollhardt;D. Volyanskyy;D. Voong;A. Vorobyev;V. Vorobyev;C. Voss;H. Voss;R. Waldi;R. Wallace;S. Wandernoth;J. Wang;D. R. Ward;N. K. Watson;A. D. Webber;D. Websdale;M. Whitehead;J. Wicht;D. Wiedner;L. Wiggers;G. Wilkinson;M. P. Williams;M. Williams;F. F. Wilson;J. Wishahi;M. Witek;W. Witzeling;S. A. Wotton;S. Wright;S. Wu;K. Wyllie;Y. Xie;F. Xing;Z. Xing;Z. Yang;R. Young;X. Yuan;O. Yushchenko;M. Zangoli;M. Zavertyaev;F. Zhang;L. Zhang;W. C. Zhang;Y. Zhang;A. Zhelezov;L. Zhong;A. Zvyagin

2012

Abstract

Measurements of inclusive W and Z boson production cross-sections in p p collisions at root s = 7TeV using final states containing muons are presented. The data sample corresponds to an integrated luminosity of 37 pb(-1) collected with the LHCb detector. The W and Z bosons are reconstructed from muons with a transverse momentum above 20 GeV/c and pseudorapidity between 2.0 and 4.5, and, in the case of the Z cross-section, a dimuon invariant mass between 60 and 120 GeV/c(2). The cross-sections are measured to be 831 +/- 9 +/- 27 +/- 29 pb for W+, 656 +/- 8 +/- 19 +/- 23 for W- and 76.7 +/- 1.7 +/- 3.3 +/- 2.7 pb for Z, where the first uncertainty is statistical, the second is systematic and the third is due to the luminosity. Differential cross-sections, W and Z cross-section ratios and the lepton charge asymmetry are also measured in the same kinematic region. The ratios are determined to be sigma W+->mu(+)nu/sigma W-->mu-(nu) over bar = 1.27 +/- 0.02 +/- 0.01 and (sigma W+->mu+nu+sigma W-->mu-(nu) over bar)/sigma Z ->mu mu = 19.4 +/- 0.5 +/- 0.9. The results are in general agreement with theoretical predictions, performed at next-to-next-to-leading order in QCD using recently calculated parton distribution functions.

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	Anno di pubblicazione
	
				2012
			
	Parole chiave
	
				hadron-hadron scattering
			
	Tipologia
	
				01 Pubblicazione su rivista::01a Articolo in rivista
			
	Citazione
	
				Inclusive W and Z production in the forward region at root s=7TeV / R., A., C. A., B., A., A., B., A., M., A., C., A., A., A., Z., A., J., A., F., A., M., A., S., A., G., A., P. A., C., A. A., A., S., A., Y., A., J., A., R. B., A., O. A., G., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2012:6(2012), p. 058. [10.1007/jhep06(2012)058]
			
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				01a Articolo in rivista

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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/493844

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