Details

Autor(en) / Beteiligte

• Adare, A.
• PHENIX Collaboration

Titel

Heavy-quark production in p + p and energy loss and flow of heavy quarks in Au + Au collisions at sqrt(s_NN)=200 GeV

Ist Teil von

• Physical review. C, Nuclear physics, 2011-10, Vol.84 (4)

Ort / Verlag

United States

Erscheinungsjahr

2011

Quelle

PROLA - Physical Review Online Archive

Beschreibungen/Notizen

• Transverse momentum spectra of electrons (p{sub T}{sup e}) from semileptonic weak decays of heavy-flavor mesons in the range of 0.3 < p{sub T}{sup e} < 9.0 GeV/c have been measured at midrapidity (|y| < 0.35) by the PHENIX experiment at the Relativistic Heavy Ion Collider in p+p and Au+Au collisions at {radical}s{sub NN} = 200 GeV. In addition, the azimuthal anisotropy parameter v{sub 2} has been measured for 0.3 < p{sub T}{sup e} < 5.0 GeV/c in Au+Au collisions. The substantial modification in the p{sub T}{sup e} spectra in Au+Au compared with p+p collisions as well as the nonzero v{sub 2} indicate substantial interactions and flow of heavy quarks in traversing the produced medium. Comparisons of these observables with detailed theoretical calculations can be used to identify the nature of these interactions and to quantify their extent.