The azimuthal anisotropy of electrons from heavy flavor decays in square root (sNN) = 200 GeV Au-Au collisions by PHENIX

• Autorzy: Sakai S.
• Konferencja: Proceedings of the 18th International conference on Nucleus-Nucleus Collisions QUARK MATTER 2005, 4-9 August, 2005, Budapest, Hungary
• Języki publikacji: EN

Abstrakty

EN

The transverse momentum dependence of the azimuthal anisotropy parameter v2, the second harmonic of the azimuthal distribution, for electrons at mid-rapidity (|eta| < 0.35) has been measured with the PHENIX detector in Au+Au collisions at square root(sNN) = 200 GeV with respect to the reaction plane defined at high rapidities (|eta| = 3-4). From the result, we have calculated non-photonic electron v2, which is expected to reflect the heavy-flavor azimuthal anisotropy, by subtracting v2 of electrons from other sources such as photon conversions, Dalitz decay etc.

Słowa kluczowe

EN

electron; charm quark; elliptic flow

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2006
• Tom: Vol. 51,suppl.3
• Strony: 33--35
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Sakai S.

• Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, Tel.: [phone], Fax: [phone],

Bibliografia

• 1. Adcox K et al. (PHENIX Collaboration) (2002) Measurement of single electrons and implications for charm production in Au+Au collisions at square root s = 130 GeV. Phys Rev Lett 88:192303
• 2. Adler SS et al. (PHENIX Collaboration) (2003) Elliptic flow of identified hadrons in Au+Au collisions at square root s =200 GeV. Phys Rev Lett 91:182301
• 3. Adler SS et al. (PHENIX Collaboration) (2005) Centrality dependence of charm production from a measurement of single electrons in Au+Au collisions at ?s = 200 GeV Phys Rev Lett 94:082301
• 4. Adler SS et al. (PHENIX Collaboration) (2005) Measurement of single electron event anisotropy in Au+Au collisions at square root s = 200 GeV. Phys Rev C 72:024901
• 5. Greco V, Ko CM, Rapp R (2004) Quark coalescence for charmed mesons in ultrarelativistic heavy-ion collisions. Phys Lett B 595:202?208
• 6. Molnar D, Voloshin SA (2003) Elliptic flow at large transverse momenta from quark coalescence. Phys Rev Lett 91:092301
• 7. Poskanzer AM, Voloshin SA (1998) Methods for analyzing anisotropic flow in relativistic nuclear collisions.Phys Rev C 58:1671?1678