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Descripción

The production of b jets in association with a Z/γ*boson is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7TeV and recorded by the CMS detector. The inclusive cross section for Z/γ*+b-jet production is measured in a sample corresponding to an integrated luminosity of 2.2 fb -1 . The Z/γ*+b-jet cross section with Z/γ*→ℓℓ (where ℓ ℓ = ee or μ μ) for events with the invariant mass 60 < M ℓ ℓ < 120 GeV, at least one b jet at the hadron level with pT > 25 GeV and |η| < 2:1, and a separation between the leptons and the jets of ΔR > 0:5 is found to be 5:84±0:08 (stat:) ±0:72 (syst:) -0:55 +0:25 (theory) pb. The kinematic properties of the events are also studied and found to be in agreement with the predictions made by the MadGraph event generator with the parton shower and the hadronisation performed by pythia.

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DSpace at MIT  

Autor(es)

CMS Collaboration -  Alver, Burak Han -  Bauer, Gerry P -  Bendavid, Joshua L. -  Busza, Wit -  Butz, Erik M. -  Cali, Ivan Amos -  Chan, Matthew Hans -  Dutta, Valentina -  Gomez -  Ceballos, Guillelmo -  Goncharov, Maxim -  Hahn, Kristian Allan -  Kim, Yongsun -  Klute, Markus -  Lee, Yen -  Jie -  Li, Wei -  Luckey Jr, P David -  Ma, Teng -  Nahn, Steven -  Paus, Christoph M. E. -  Ralph, Duncan Kelley -  Roland, Christof E -  Roland, Gunther M -  Rudolph, Matthew Scott -  Stephans, George S. F. -  Stoeckli, Fabian -  Sumorok, Konstanty C -  Sung, Kevin Kai Hong -  Velicanu, Dragos Alexandru -  Wenger, Edward Allen -  Wolf, Roger -  Wyslouch, Boleslaw -  Xie, Si -  Yang, Ming -  Yilmaz, Yetkin -  Yoon, A. S. -  Zanetti, Marco - 

Id.: 71382014

Versión: 1.0

Estado: Final

Tipo de recurso: Article  -  http://purl.org/eprint/type/JournalArticle  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: Attribution 4.0 International (CC BY 4.0)

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] Journal of High Energy Physics
[References] http://dx.doi.org/10.1007/JHEP06(2012)126
[References] Journal of High Energy Physics

Fecha de contribución: 10-jun-2018

Contacto:

Localización:
* 1029-8479
* Chatrchyan, S. et al. “Measurement of the Z/γ* + b-jet cross section in pp collisions at √s = 7 TeV.” Journal of High Energy Physics 2012, 6 (June 2012): 126 © 2012 SISSA
* PUBLISHER_CC

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