Measurement of the cross section and angular correlations for associated production of a Z boson with b hadrons in pp collisions at sqrt(s) = 7 TeV (CROSBI ID 200619)
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Podaci o odgovornosti
Chatrchyan, S. ; ... ; Godinović, Nikola ; Lelas, Damir ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Luetić, Jelena ; Morović, Srećko ; Mekterović, Darko ; Tikvica, Lucija ; ... ; Swanson, J.
engleski
Measurement of the cross section and angular correlations for associated production of a Z boson with b hadrons in pp collisions at sqrt(s) = 7 TeV
A study of proton-proton collisions in which two b hadrons are produced in association with a Z boson is reported. The collisions were recorded at a centre-of-mass energy of 7TeVwith the CMS detector at the LHC, for an integrated luminosity of 5:2 fb1. The b hadrons are identi ed by means of displaced secondary vertices, without the use of reconstructed jets, permitting the study of b- hadron pair production at small angular separation. Di erential cross sections are presented as a function of the angular separation of the b hadrons and the Z boson. In addition, inclusive measurements are presented. For both the inclusive and di erential studies, di erent ranges of Z boson momentum are considered, and each measurement is compared to the predictions from di erent event generators at leading-order and next-to-leading-order accuracy.
Hadron-Hadron Scattering
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Podaci o izdanju
1312
2013.
039-1-039-37
objavljeno
1029-8479
10.1007/JHEP12(2013)039