Dielectron production in Au+Au collisions at √sNN=200 GeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00501342" target="_blank" >RIV/68378271:_____/16:00501342 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevC.93.014904" target="_blank" >http://dx.doi.org/10.1103/PhysRevC.93.014904</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.93.014904" target="_blank" >10.1103/PhysRevC.93.014904</a>

Result language
angličtina
Original language name
Dielectron production in Au+Au collisions at √sNN=200 GeV
Original language description
We present measurements of e+e− production at midrapidity in Au+Au collisions at sNN=200 GeV. The invariant yield is studied within the PHENIX detector acceptance over a wide range of mass (mee<5 GeV/c2) and pair transverse momentum (pT<5 GeV/c) for minimum bias and for five centrality classes. The e+e− yield is compared to the expectations from known sources. In the low-mass region (mee=0.30–0.76 GeV/c2) there is an enhancement that increases with centrality and is distributed over the entire pair pT range measured. It is significantly smaller than previously reported by the PHENIX experiment and amounts to 2.3±0.4(stat)±0.4(syst)±0.2(model) or to 1.7±0.3(stat)±0.3(syst)±0.2(model) for minimum bias collisions when the open heavy-flavor contribution is calculated with pythia or mc@nlo, respectively.n
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics

Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)