Measurements of e(+)e(-) pairs from open heavy flavor in p plus p and d plus A collisions at root S-NN=200 GeV

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10369643" target="_blank" >RIV/00216208:11320/17:10369643 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevC.96.024907" target="_blank" >http://dx.doi.org/10.1103/PhysRevC.96.024907</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.96.024907" target="_blank" >10.1103/PhysRevC.96.024907</a>

Result language

angličtina

Original language name

Measurements of e(+)e(-) pairs from open heavy flavor in p plus p and d plus A collisions at root S-NN=200 GeV

Original language description

We report a measurement of e(+)e(-) pairs from semileptonic heavy-flavor decays in p + p collisions at root S-NN = 200 GeV. The e(+)e(-) pair yield from b (b) over bar and c (c) over bar is separated by exploiting a double differential fit done simultaneously in dielectron invariant mass and p(T). We used three different event generators, PYTHIA, MC@NLO, and POWHEG, to simulate the e(+)e(-) spectra from c (c) over bar and b (b) over bar production. The data can be well described by all three generators within the detector acceptance. However, when using the generators to extrapolate to 4 pi, significant differences are observed for the total cross section. These difference are less pronounced for b (b) over bar than for c (c) over bar. The same model dependence was observed in already published d + A data. The p + p data are also directly compared with d + A data in mass and p(T), and within the statistical accuracy no nuclear modification is seen.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10304 - Nuclear physics

Project

<a href="/en/project/LG15001" target="_blank" >LG15001: Participation of the Czech Republic in experiments at Brookhaven National Laboratory, USA</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review C

ISSN

2469-9985

e-ISSN

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Volume of the periodical

96

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

19

Pages from-to

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UT code for WoS article

000407928200005

EID of the result in the Scopus database

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