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The production of a Z boson, decaying into two leptons and produced in association with one or more b jets, is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV. The data were recorded in 2011 with the CMS detector and correspond to an integrated luminosity of 5 fb-1. The Z(ℓℓ) + b-jets cross sections (where ℓℓ = μμ or ee) are measured separately for a Z boson produced with exactly one b jet and with at least two b jets. In addition, a cross section ratio is extracted for a Z boson produced with at least one b jet, relative to a Z boson produced with at least one jet. The measured cross sections are compared to various theoretical predictions, and the data favour the predictions in the five-flavour scheme, where b quarks are assumed massless. The kinematic properties of the reconstructed particles are compared with the predictions from the MadGraph event generator using the pythia parton shower simulation.
Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at sqrt(s) = 7 TeV / S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, 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, et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - ELETTRONICO. - 06:120:(2014), pp. 1-38. [10.1007/JHEP06(2014)120]
Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at sqrt(s) = 7 TeV
S. Chatrchyan;V. Khachatryan;A. M. Sirunyan;A. Tumasyan;W. Adam;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;D. Rabady;B. Rahbaran;C. Rohringer;H. Rohringer;R. Schöfbeck;J. Strauss;A. Taurok;W. Treberer Treberspurg;W. Waltenberger;C. E. Wulz;V. Mossolov;N. Shumeiko;J. Suarez Gonzalez;S. Alderweireldt;M. Bansal;S. Bansal;T. Cornelis;E. A. De Wolf;X. Janssen;A. Knutsson;S. Luyckx;L. Mucibello;S. Ochesanu;B. Roland;R. Rougny;Z. Staykova;H. Van Haevermaet;P. Van Mechelen;N. Van Remortel;A. Van Spilbeeck;F. Blekman;S. Blyweert;J. D’Hondt;A. Kalogeropoulos;J. Keaveney;M. Maes;A. Olbrechts;S. Tavernier;W. Van Doninck;P. Van Mulders;G. P. Van Onsem;I. Villella;C. Caillol;B. Clerbaux;G. De Lentdecker;L. Favart;A. P. R. Gay;T. Hreus;A. Léonard;P. E. Marage;A. Mohammadi;L. Perniè;T. Reis;T. Seva;L. Thomas;C. Vander Velde;P. Vanlaer;J. Wang;V. Adler;K. Beernaert;L. 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Bainbridge;O. Buchmuller;D. Burton;D. Colling;N. Cripps;M. Cutajar;P. Dauncey;G. Davies;M. Della Negra;W. Ferguson;J. Fulcher;D. Futyan;A. Gilbert;A. Guneratne Bryer;G. Hall;Z. Hatherell;J. Hays;G. Iles;M. Jarvis;G. Karapostoli;M. Kenzie;R. Lane;R. Lucas;L. Lyons;A. M. Magnan;J. Marrouche;B. Mathias;R. Nandi;J. Nash;A. Nikitenko;J. Pela;M. Pesaresi;K. Petridis;M. Pioppi;D. M. Raymond;S. Rogerson;A. Rose;C. Seez;P. Sharp;A. Sparrow;A. Tapper;M. Vazquez Acosta;T. Virdee;S. Wakefield;N. Wardle;M. Chadwick;J. E. Cole;P. R. Hobson;A. Khan;P. Kyberd;D. Leggat;D. Leslie;W. Martin;I. D. Reid;P. Symonds;L. Teodorescu;M. Turner;J. Dittmann;K. Hatakeyama;A. Kasmi;H. Liu;T. Scarborough;O. Charaf;S. I. Cooper;C. Henderson;P. Rumerio;A. Avetisyan;T. Bose;C. Fantasia;A. Heister;P. Lawson;D. Lazic;J. Rohlf;D. Sperka;J. S.t. John;L. Sulak;J. Alimena;S. Bhattacharya;G. Christopher;D. Cutts;Z. Demiragli;A. Ferapontov;A. Garabedian;U. Heintz;S. Jabeen;G. Kukartsev;E. Laird;G. Landsberg;M. Luk;M. Narain;M. Segala;T. Sinthuprasith;T. Speer;R. Breedon;G. Breto;M. Calderon De La Barca Sanchez;S. Chauhan;M. Chertok;J. Conway;R. Conway;P. T. Cox;R. Erbacher;M. Gardner;R. Houtz;W. Ko;A. Kopecky;R. Lander;T. Miceli;D. Pellett;J. Pilot;F. Ricci Tam;B. Rutherford;M. Searle;S. Shalhout;J. Smith;M. Squires;M. Tripathi;S. Wilbur;R. Yohay;V. Andreev;D. Cline;R. Cousins;S. Erhan;P. Everaerts;C. Farrell;M. Felcini;J. Hauser;M. Ignatenko;C. Jarvis;G. Rakness;P. Schlein;E. Takasugi;P. Traczyk;V. Valuev;M. Weber;J. Babb;R. Clare;J. Ellison;J. W. Gary;G. Hanson;J. Heilman;P. Jandir;H. Liu;O. R. Long;A. Luthra;M. Malberti;H. Nguyen;A. Shrinivas;J. Sturdy;S. Sumowidagdo;R. Wilken;S. Wimpenny;W. Andrews;J. G. Branson;G. B. Cerati;S. Cittolin;D. Evans;A. Holzner;R. Kelley;M. Lebourgeois;J. Letts;I. Macneill;S. Padhi;C. Palmer;G. Petrucciani;M. Pieri;M. Sani;V. Sharma;S. Simon;E. Sudano;M. Tadel;Y. Tu;A. Vartak;S. Wasserbaech;F. Würthwein;A. Yagil;J. Yoo;D. Barge;C. Campagnari;T. Danielson;K. Flowers;P. Geffert;C. George;F. Golf;J. Incandela;C. Justus;D. Kovalskyi;V. Krutelyov;S. Lowette;R. Magaña Villalba;N. Mccoll;V. Pavlunin;J. Richman;R. Rossin;D. Stuart;W. To;C. West;A. Apresyan;A. Bornheim;J. Bunn;Y. Chen;E. Di Marco;J. Duarte;D. Kcira;Y. Ma;A. Mott;H. B. Newman;C. Pena;C. Rogan;M. Spiropulu;V. Timciuc;J. Veverka;R. Wilkinson;S. Xie;R. Y. Zhu;V. Azzolini;A. Calamba;R. Carroll;T. Ferguson;Y. Iiyama;D. W. Jang;Y. F. Liu;M. Paulini;J. Russ;H. Vogel;I. Vorobiev;J. P. Cumalat;B. R. Drell;W. T. Ford;A. Gaz;E. Luiggi Lopez;U. Nauenberg;J. G. Smith;K. Stenson;K. A. Ulmer;S. R. Wagner;J. Alexander;A. Chatterjee;N. Eggert;L. K. Gibbons;W. Hopkins;A. Khukhunaishvili;B. Kreis;N. Mirman;G. Nicolas Kaufman;J. R. Patterson;A. Ryd;E. Salvati;W. Sun;W. D. Teo;J. Thom;J. Thompson;J. Tucker;Y. Weng;L. Winstrom;P. Wittich;D. Winn;S. Abdullin;M. Albrow;J. Anderson;G. Apollinari;L. A. T. Bauerdick;A. Beretvas;J. Berryhill;P. C. Bhat;K. Burkett;J. N. Butler;V. Chetluru;H. W. K. Cheung;F. Chlebana;S. Cihangir;V. D. Elvira;I. Fisk;J. Freeman;Y. Gao;E. Gottschalk;L. Gray;D. Green;O. Gutsche;D. Hare;R. M. Harris;J. Hirschauer;B. Hooberman;S. Jindariani;M. Johnson;U. Joshi;K. Kaadze;B. Klima;S. Kunori;S. Kwan;J. Linacre;D. Lincoln;R. Lipton;J. Lykken;K. Maeshima;J. M. Marraffino;V. I. Martinez Outschoorn;S. Maruyama;D. Mason;P. McBride;K. Mishra;S. Mrenna;Y. Musienko;C. Newman Holmes;V. O’Dell;O. Prokofyev;N. Ratnikova;E. Sexton Kennedy;S. Sharma;W. J. Spalding;L. Spiegel;L. Taylor;S. Tkaczyk;N. V. Tran;L. Uplegger;E. W. Vaandering;R. Vidal;J. Whitmore;W. Wu;F. Yang;J. C. Yun;D. Acosta;P. Avery;D. Bourilkov;M. Chen;T. Cheng;S. Das;M. De Gruttola;G. P. Di Giovanni;D. Dobur;A. Drozdetskiy;R. D. Field;M. Fisher;Y. Fu;I. K. Furic;J. Hugon;B. Kim;J. Konigsberg;A. Korytov;A. Kropivnitskaya;T. Kypreos;J. F. Low;K. Matchev;P. Milenovic;G. Mitselmakher;L. Muniz;R. Remington;A. Rinkevicius;N. Skhirtladze;M. Snowball;J. Yelton;M. Zakaria;V. Gaultney;S. Hewamanage;S. Linn;P. Markowitz;G. Martinez;J. L. Rodriguez;T. Adams;A. Askew;J. Bochenek;J. Chen;B. Diamond;S. V. Gleyzer;J. Haas;S. Hagopian;V. Hagopian;K. F. Johnson;H. Prosper;V. Veeraraghavan;M. Weinberg;M. M. Baarmand;B. Dorney;M. Hohlmann;H. Kalakhety;F. Yumiceva;M. R. Adams;L. Apanasevich;V. E. Bazterra;R. R. Betts;I. Bucinskaite;J. Callner;R. Cavanaugh;O. Evdokimov;L. Gauthier;C. E. Gerber;D. J. Hofman;S. Khalatyan;P. Kurt;F. Lacroix;D. H. Moon;C. O’Brien;C. Silkworth;D. Strom;P. Turner;N. Varelas;U. Akgun;E. A. Albayrak;B. Bilki;W. Clarida;K. Dilsiz;F. Duru;S. Griffiths;J. P. Merlo;H. Mermerkaya;A. Mestvirishvili;A. Moeller;J. Nachtman;C. R. Newsom;H. Ogul;Y. Onel;F. Ozok;S. Sen;P. Tan;E. Tiras;J. Wetzel;T. Yetkin;K. Yi;B. A. Barnett;B. Blumenfeld;S. Bolognesi;G. Giurgiu;A. V. Gritsan;G. Hu;P. Maksimovic;C. Martin;M. Swartz;A. Whitbeck;P. Baringer;A. Bean;G. Benelli;R. P. Kenny III;M. Murray;D. Noonan;S. Sanders;R. Stringer;J. S. Wood;A. F. Barfuss;I. Chakaberia;A. Ivanov;S. Khalil;M. Makouski;Y. 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Meier;G. R. Snow;J. Dolen;A. Godshalk;I. Iashvili;S. Jain;A. Kharchilava;A. Kumar;S. Rappoccio;Z. Wan;G. Alverson;E. Barberis;D. Baumgartel;M. Chasco;J. Haley;A. Massironi;D. Nash;T. Orimoto;D. Trocino;D. Wood;J. Zhang;A. Anastassov;K. A. Hahn;A. Kubik;L. Lusito;N. Mucia;N. Odell;B. Pollack;A. Pozdnyakov;M. Schmitt;S. Stoynev;K. Sung;M. Velasco;S. Won;D. Berry;A. Brinkerhoff;K. M. Chan;M. Hildreth;C. Jessop;D. J. Karmgard;J. Kolb;K. Lannon;W. Luo;S. Lynch;N. Marinelli;D. M. Morse;T. Pearson;M. Planer;R. Ruchti;J. Slaunwhite;N. Valls;M. Wayne;M. Wolf;L. Antonelli;B. Bylsma;L. S. Durkin;C. Hill;R. Hughes;K. Kotov;T. Y. Ling;D. Puigh;M. Rodenburg;G. Smith;C. Vuosalo;B. L. Winer;H. Wolfe;E. Berry;P. Elmer;V. Halyo;P. Hebda;J. Hegeman;A. Hunt;P. Jindal;S. A. Koay;P. Lujan;D. Marlow;T. Medvedeva;M. Mooney;J. Olsen;P. Piroué;X. Quan;A. Raval;H. Saka;D. Stickland;C. Tully;J. S. Werner;S. C. Zenz;A. Zuranski;E. Brownson;A. Lopez;H. Mendez;J. E. Ramirez Vargas;E. Alagoz;D. Benedetti;G. Bolla;D. Bortoletto;M. De Mattia;A. Everett;Z. Hu;M. Jones;K. Jung;O. Koybasi;M. Kress;N. Leonardo;D. Lopes Pegna;V. Maroussov;P. Merkel;D. H. Miller;N. Neumeister;I. Shipsey;D. Silvers;A. Svyatkovskiy;M. Vidal Marono;F. Wang;W. Xie;L. Xu;H. D. Yoo;J. Zablocki;Y. Zheng;N. Parashar;A. Adair;B. Akgun;K. M. Ecklund;F. J. M. Geurts;W. Li;B. Michlin;B. P. Padley;R. Redjimi;J. Roberts;J. Zabel;B. Betchart;A. Bodek;R. Covarelli;P. de Barbaro;R. Demina;Y. Eshaq;T. Ferbel;A. Garcia Bellido;P. Goldenzweig;J. Han;A. Harel;D. C. Miner;G. Petrillo;D. Vishnevskiy;M. Zielinski;A. Bhatti;R. Ciesielski;L. Demortier;K. Goulianos;G. Lungu;S. Malik;C. Mesropian;S. Arora;A. Barker;J. P. Chou;C. Contreras Campana;E. Contreras Campana;D. Duggan;D. Ferencek;Y. Gershtein;R. Gray;E. Halkiadakis;D. Hidas;A. Lath;S. Panwalkar;M. Park;R. Patel;V. Rekovic;J. Robles;S. Salur;S. Schnetzer;C. Seitz;S. Somalwar;R. Stone;S. Thomas;P. Thomassen;M. Walker;G. Cerizza;M. Hollingsworth;K. Rose;S. Spanier;Z. C. Yang;A. York;O. Bouhali;R. Eusebi;W. Flanagan;J. Gilmore;T. Kamon;V. Khotilovich;R. Montalvo;I. Osipenkov;Y. Pakhotin;A. Perloff;J. Roe;A. Safonov;T. Sakuma;I. Suarez;A. Tatarinov;D. Toback;N. Akchurin;C. Cowden;J. Damgov;C. Dragoiu;P. R. Dudero;K. Kovitanggoon;S. W. Lee;T. Libeiro;I. Volobouev;E. Appelt;A. G. Delannoy;S. Greene;A. Gurrola;W. Johns;C. Maguire;Y. Mao;A. Melo;M. Sharma;P. Sheldon;B. Snook;S. Tuo;J. Velkovska;M. W. Arenton;S. Boutle;B. Cox;B. Francis;J. Goodell;R. Hirosky;A. Ledovskoy;C. Lin;C. Neu;J. Wood;S. Gollapinni;R. Harr;P. E. Karchin;C. Kottachchi Kankanamge Don;P. Lamichhane;A. Sakharov;D. A. Belknap;L. Borrello;D. Carlsmith;M. Cepeda;S. Dasu;S. Duric;E. Friis;M. Grothe;R. Hall Wilton;M. Herndon;A. Hervé;P. Klabbers;J. Klukas;A. Lanaro;R. Loveless;A. Mohapatra;M. U. Mozer;I. Ojalvo;T. Perry;G. A. Pierro;G. Polese;I. Ross;T. Sarangi;A. Savin;W. H. Smith;J. Swanson
2014
Abstract
The production of a Z boson, decaying into two leptons and produced in association with one or more b jets, is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV. The data were recorded in 2011 with the CMS detector and correspond to an integrated luminosity of 5 fb-1. The Z(ℓℓ) + b-jets cross sections (where ℓℓ = μμ or ee) are measured separately for a Z boson produced with exactly one b jet and with at least two b jets. In addition, a cross section ratio is extracted for a Z boson produced with at least one b jet, relative to a Z boson produced with at least one jet. The measured cross sections are compared to various theoretical predictions, and the data favour the predictions in the five-flavour scheme, where b quarks are assumed massless. The kinematic properties of the reconstructed particles are compared with the predictions from the MadGraph event generator using the pythia parton shower simulation.
S. Chatrchyan; V. Khachatryan; A. M. Sirunyan; A. Tumasyan; W. Adam; T. Bergauer; M. Dragicevic; J. Erö; C. Fabjan; M. Friedl; R. Frühwirth; V. M. Ghe...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/879929
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simulazione ASN
Il report seguente simula gli indicatori relativi alla propria produzione scientifica in relazione alle soglie ASN 2023-2025 del proprio SC/SSD. Si ricorda che il superamento dei valori soglia (almeno 2 su 3) è requisito necessario ma non sufficiente al conseguimento dell'abilitazione. La simulazione si basa sui dati IRIS e sugli indicatori bibliometrici alla data indicata e non tiene conto di eventuali periodi di congedo obbligatorio, che in sede di domanda ASN danno diritto a incrementi percentuali dei valori. La simulazione può differire dall'esito di un’eventuale domanda ASN sia per errori di catalogazione e/o dati mancanti in IRIS, sia per la variabilità dei dati bibliometrici nel tempo. Si consideri che Anvur calcola i valori degli indicatori all'ultima data utile per la presentazione delle domande.
La presente simulazione è stata realizzata sulla base delle specifiche raccolte sul tavolo ER del Focus Group IRIS coordinato dall’Università di Modena e Reggio Emilia e delle regole riportate nel DM 589/2018 e allegata Tabella A. Cineca, l’Università di Modena e Reggio Emilia e il Focus Group IRIS non si assumono alcuna responsabilità in merito all’uso che il diretto interessato o terzi faranno della simulazione. Si specifica inoltre che la simulazione contiene calcoli effettuati con dati e algoritmi di pubblico dominio e deve quindi essere considerata come un mero ausilio al calcolo svolgibile manualmente o con strumenti equivalenti.