Measurement of the single-top-quark t-channel cross section in pp collisions at sqrt{s}=7 TeV
Articolo
Data di Pubblicazione:
2012
Abstract:
A measurement of the single-top-quark t-channel production cross section
in pp collisions at √
s = 7 TeV with the CMS detector at the LHC is presented. Two
different and complementary approaches have been followed. The first approach exploits
the distributions of the pseudorapidity of the recoil jet and reconstructed top-quark mass
using background estimates determined from control samples in data. The second approach
is based on multivariate analysis techniques that probe the compatibility of the candidate
events with the signal. Data have been collected for the muon and electron final states,
corresponding to integrated luminosities of 1.17 and 1.56 fb−1
, respectively. The single-topquark
production cross section in the t-channel is measured to be 67.2±6.1 pb, in agreement
with the approximate next-to-next-to-leading-order standard model prediction. Using the
standard model electroweak couplings, the CKM matrix element |Vtb| is measured to be
1.020 ± 0.046 (meas.) ± 0.017 (theor.)
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
S. Chatrchyan;V. Khachatryan;A. M. Sirunyan;A. Tumasyan;W. Adam;E. Aguilo;T. Bergauer;M. Dragicevic;J. Erö;C. Fabjan;M. Friedl;R. Frühwirth;V. M. Ghete;N. Hörmann;J. Hrubec;M. Jeitler;W. Kiesenhofer;V. Knünz;M. Krammer;I. Krätschmer;D. Liko;I. Mikulec;M. Pernicka;D. Rabady;B. Rahbaran;C. Rohringer;H. Rohringer;R. Schöfbeck;J. Strauss;A. Taurok;W. Waltenberger;C.-E. Wulz;V. Mossolov;N. Shumeiko;J. Suarez Gonzalez;M. Bansal;S. Bansal;T. Cornelis;E. A. Wolf;X. Janssen;S. Luyckx;L. Mucibello;S. Ochesanu;B. Roland;R. Rougny;M. Selvaggi;H. Haevermaet;P. Mechelen;N. Remortel;A. Spilbeeck;F. Blekman;S. Blyweert;J. D’Hondt;R. Gonzalez Suarez;A. Kalogeropoulos;M. Maes;A. Olbrechts;W. Doninck;P. Mulders;G. P. Onsem;I. Villella;B. Clerbaux;G. Lentdecker;V. Dero;A. P. R. Gay;T. Hreus;A. Léonard;P. E. Marage;A. Mohammadi;T. Reis;L. Thomas;C. Vander Velde;P. Vanlaer;J. Wang;V. Adler;K. Beernaert;A. Cimmino;S. Costantini;G. Garcia;M. Grunewald;B. Klein;J. Lellouch;A. Marinov;J. Mccartin;A. A. Ocampo Rios;D. Ryckbosch;N. Strobbe;F. Thyssen;M. Tytgat;S. Walsh;E. Yazgan;N. Zaganidis;S. Basegmez;G. Bruno;R. Castello;L. Ceard;C. Delaere;T. Pree;D. Favart;L. Forthomme;A. Giammanco;J. Hollar;V. Lemaitre;J. Liao;O. Militaru;C. Nuttens;D. Pagano;A. Pin;K. Piotrzkowski;J. M. Vizan Garcia;N. Beliy;T. Caebergs;E. Daubie;G. H. Hammad;G. A. Alves;M. Correa Martins;T. Martins;M. E. Pol;M. H. G. Souza;W. L. Aldá;W. Carvalho;A. Custódio;E. M. Costa;D. Jesus Damiao;C. Oliveira Martins;S. Fonseca De Souza;H. Malbouisson;M. Malek;D. Matos Figueiredo;L. Mundim;H. Nogima;W. L. Prado Da Silva;A. Santoro;L. Soares Jorge;A. Sznajder;A. Vilela Pereira;T. S. Anjos;C. A. Bernardes;F. A. Dias;T. R. Fernandez Perez Tomei;E. M. Gregores;C. Lagana;F. Marinho;P. G. Mercadante;S. F. Novaes;Sandra S. Padula;V. Genchev;P. Iaydjiev;S. Piperov;M. Rodozov;S. Stoykova;G. Sultanov;V. Tcholakov;R. Trayanov;M. Vutova;A. Dimitrov;R. Hadjiiska;V. Kozhuharov;L. Litov;B. Pavlov;P. Petkov;J. G. Bian;G. M. Chen;H. S. Chen;C. H. Jiang;D. Liang;S. Liang;X. Meng;J. Tao;J. Wang;X. Wang;Z. Wang;H. Xiao;M. Xu;J. Zang;Z. Zhang;C. Asawatangtrakuldee;Y. Ban;Y. Guo;W. Li;S. Liu;Y. Mao;S. J. Qian;H. Teng;D. Wang;L. Zhang;W. Zou;C. Avila;J. P. Gomez;B. Gomez Moreno;A. F. Osorio Oliveros;J. C. Sanabria;N. Godinovic;D. Lelas;R. Plestina;D. Polic;I. Puljak;Z. Antunovic;M. Kovac;V. Brigljevic;S. Duric;K. Kadija;J. Luetic;D. Mekterovic;S. Morovic;A. Attikis;M. Galanti;G. Mavromanolakis;J. Mousa;C. Nicolaou;F. Ptochos;P. A. Razis;M. Finger;M. Finger;Y. Assran;N. Bakhet;S. Elgammal;A. Ellithi Kamel;S. Khalil;A. M. Kuotb Awad;M. A. Mahmoud;A. Radi;M. Kadastik;M. Müntel;M. Raidal;L. Rebane;A. Tiko;P. Eerola;G. Fedi;M. Voutilainen;J. Härkönen;A. Heikkinen;V. Karimäki;R. Kinnunen;M. J. Kortelainen;T. Lampén;K. Lassila-Perini;S. Lehti;T. Lindén;P. Luukka;T. Mäenpää;T. Peltola;E. Tuominen;J. Tuominiemi;E. Tuovinen;D. Ungaro;L. Wendland;K. Banzuzi;A. Karjalainen;A. Korpela;T. Tuuva;M. Besancon;S. Choudhury;M. Dejardin;D. Denegri;B. Fabbro;J. L. Faure;F. Ferri;S. Ganjour;A. Givernaud;P. Gras;G. Hamel de Monchenault;P. Jarry;E. Locci;J. Malcles;L. Millischer;A. Nayak;J. Rander;A. Rosowsky;M. Titov;S. Baffioni;F. Beaudette;L. Benhabib;L. Bianchini;M. Bluj;P. Busson;C. Charlot;N. Daci;T. Dahms;M. Dalchenko;L. Dobrzynski;A. Florent;R. Granier de Cassagnac;M. Haguenauer;P. Miné;C. Mironov;I. N. Naranjo;M. Nguyen;C. Ochando;P. Paganini;D. Sabes;R. Salerno;Y. Sirois;C. Veelken;A. Zabi;J.-L. Agram;J. Andrea;D. Bloch;D. Bodin;J.-M. Brom;M. Cardaci;E. C. Chabert;C. Collard;E. Conte;F. Drouhin;J.-C. Fontaine;D. Gelé;U. Goerlach;P. Juillot;A.-C. Bihan;P. Hove;F. Fassi;D. M
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