Production of b b ¯ at forward rapidity in p+p collisions at s =510 GeV PRODUCTION of b b ¯ at FORWARD RAPIDITY ... ACHARYA U et al..
(2020) In Physical Review D 102(9).- Abstract
- The cross section of bottom quark-antiquark (bb¯) production in p+p collisions at s=510 GeV is measured with the PHENIX detector at the Relativistic Heavy Ion Collider. The results are based on the yield of high mass, like-sign muon pairs measured within the PHENIX muon arm acceptance (1.21 GeV/c, and dimuon mass of 5-10 GeV/c2. The extrapolated total cross section at this energy for bb¯ production is 13.1±0.6 (stat)±1.5 (syst)±2.7 (global) μb. The total cross section is compared to a perturbative quantum chromodynamics calculation and is consistent within uncertainties. The azimuthal opening angle between muon pairs from bb¯ decays and their pT distributions are compared to distributions generated using ps pythia6, which includes... (More)
- The cross section of bottom quark-antiquark (bb¯) production in p+p collisions at s=510 GeV is measured with the PHENIX detector at the Relativistic Heavy Ion Collider. The results are based on the yield of high mass, like-sign muon pairs measured within the PHENIX muon arm acceptance (1.21 GeV/c, and dimuon mass of 5-10 GeV/c2. The extrapolated total cross section at this energy for bb¯ production is 13.1±0.6 (stat)±1.5 (syst)±2.7 (global) μb. The total cross section is compared to a perturbative quantum chromodynamics calculation and is consistent within uncertainties. The azimuthal opening angle between muon pairs from bb¯ decays and their pT distributions are compared to distributions generated using ps pythia6, which includes next-to-leading order processes. The azimuthal correlations and pair pT distribution are not very well described by pythia calculations, but are still consistent within uncertainties. Flavor creation and flavor excitation subprocesses are favored over gluon splitting. © 2020 authors. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/59af02fb-7fb1-4d56-b09f-fcef44735d67
- author
- Acharya, U. ; Oskarsson, Anders LU ; Silvermyr, David LU and Zou, L.
- author collaboration
- organization
- publishing date
- 2020
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review D
- volume
- 102
- issue
- 9
- publisher
- American Physical Society
- external identifiers
-
- scopus:85096136290
- ISSN
- 2470-0010
- DOI
- 10.1103/PhysRevD.102.092002
- language
- English
- LU publication?
- yes
- id
- 59af02fb-7fb1-4d56-b09f-fcef44735d67
- date added to LUP
- 2020-11-24 14:31:10
- date last changed
- 2023-04-11 00:46:40
@article{59af02fb-7fb1-4d56-b09f-fcef44735d67, abstract = {{The cross section of bottom quark-antiquark (bb¯) production in p+p collisions at s=510 GeV is measured with the PHENIX detector at the Relativistic Heavy Ion Collider. The results are based on the yield of high mass, like-sign muon pairs measured within the PHENIX muon arm acceptance (1.21 GeV/c, and dimuon mass of 5-10 GeV/c2. The extrapolated total cross section at this energy for bb¯ production is 13.1±0.6 (stat)±1.5 (syst)±2.7 (global) μb. The total cross section is compared to a perturbative quantum chromodynamics calculation and is consistent within uncertainties. The azimuthal opening angle between muon pairs from bb¯ decays and their pT distributions are compared to distributions generated using ps pythia6, which includes next-to-leading order processes. The azimuthal correlations and pair pT distribution are not very well described by pythia calculations, but are still consistent within uncertainties. Flavor creation and flavor excitation subprocesses are favored over gluon splitting. © 2020 authors.}}, author = {{Acharya, U. and Oskarsson, Anders and Silvermyr, David and Zou, L.}}, issn = {{2470-0010}}, language = {{eng}}, number = {{9}}, publisher = {{American Physical Society}}, series = {{Physical Review D}}, title = {{Production of b b ¯ at forward rapidity in p+p collisions at s =510 GeV PRODUCTION of b b ¯ at FORWARD RAPIDITY ... ACHARYA U et al..}}, url = {{http://dx.doi.org/10.1103/PhysRevD.102.092002}}, doi = {{10.1103/PhysRevD.102.092002}}, volume = {{102}}, year = {{2020}}, }