Production of b(b)over-bar at forward rapidity in p plus p collisions at root s=510 GeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10424262" target="_blank" >RIV/00216208:11320/20:10424262 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/20:00344712
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=vNs219.jfo" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=vNs219.jfo</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.102.092002" target="_blank" >10.1103/PhysRevD.102.092002</a>
Alternative languages
Result language
angličtina
Original language name
Production of b(b)over-bar at forward rapidity in p plus p collisions at root s=510 GeV
Original language description
The cross section of bottom quark-antiquark (b (b) over bar) production in p + p collisions at root 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 (1.2 < vertical bar y vertical bar < 2.2). The b (b) over bar signal is extracted from like-sign dimuons by utilizing the unique properties of neutral B meson oscillation. We report a differential cross section of d sigma(b (b) over bar ->mu +/-mu +/-)/dy = 0.16 +/- 0.01 (stat) +/- 0.02 (syst) +/- 0.02 (global) nb for like-sign muons in the rapidity and p(T) ranges 1.2 < vertical bar y vertical bar < 2.2 and p(T) > 1 GeV/c, and dimuon mass of 5-10 GeV/c(2). The extrapolated total cross section at this energy for b (b) over bar production is 13.1 +/- 0.6 (stat) +/- 1.5 (syst) +/- 2.7 (global) mu b. 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 b (b) over bar decays and their p(T) distributions are compared to distributions generated using PS PYTHIA6, which includes next-to-leading order processes. The azimuthal correlations and pair p(T) 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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/LM2018109" target="_blank" >LM2018109: Brookhaven National Laboratory - the participation of the Czech Republic</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
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Volume of the periodical
102
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
092002
UT code for WoS article
000588231600002
EID of the result in the Scopus database
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