Charm and beauty searches using electron -D{sup 0} azimuthal correlations and microvertexing techniques in STAR experiment at RHIC

Journal Article · Wed Dec 22 00:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3536569· OSTI ID:21510038

Geromitsos, Artemios ^[1]

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1. SUBATECH, Ecole de Mines, 4 rue Alfred Kastler, BP 20722, 44307, Nantes (France)

The energy loss of heavy quarks in the hot and dense matter created at RHIC, can be used to probe the properties of the medium. Both charm and beauty quarks contribute to the non-photonic electrons through their semi-leptonic decays. It is essential to determine experimentally the relative contribution of charm and beauty quarks to understand the suppression of heavy flavors at high p{sub T} in central Au+Au collisions. The azimuthal angular correlations of non-photonic electrons with the reconstructed D{sup 0} allow to disentangle the contribution of charm and beauty and to reduce the background below the D{sup 0} invariant mass as well. We discuss the STAR measurement of non-photonic electron and D{sup 0{yields}}K{sup -{pi}+} azimuthal correlations in p+p collisions at 200 GeV. Furthermore, we show results from the application of microvertexing techniques for charm and beauty searches in Cu+Cu and Au+Au collisions at 200 GeV using the information of the Silicon tracker of STAR.

• OSTI ID: 21510038
• Journal Information: AIP Conference Proceedings, Vol. 1317, Issue 1; Conference: International workshop on quantum chromodynamics: Theory and experiment - Beppe Nardulli memorial workshop, Martina Franca (Italy), 20-23 Jun 2010; Other Information: DOI: 10.1063/1.3536569; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR CORRELATION
ATOM-ATOM COLLISIONS
B QUARKS
BROOKHAVEN RHIC
C QUARKS
CALORIMETERS
COPPER
D NEUTRAL MESONS
ELECTRON-MESON INTERACTIONS
ENERGY LOSSES
FLAVOR MODEL
GEV RANGE 100-1000
GOLD
KAONS MINUS
LEPTONIC DECAY
MASS
PIONS PLUS
PROTON-PROTON INTERACTIONS
T QUARKS
ACCELERATORS
ATOM COLLISIONS
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
BEAUTY PARTICLES
BOSONS
CHARM PARTICLES
CHARMED MESONS
COLLISIONS
COMPOSITE MODELS
CORRELATIONS
D MESONS
DECAY
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
GEV RANGE
HADRON-HADRON INTERACTIONS
HADRONS
HEAVY ION ACCELERATORS
INTERACTIONS
KAONS
LEPTON-HADRON INTERACTIONS
LEPTON-MESON INTERACTIONS
LOSSES
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESONS
METALS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
PIONS
POSTULATED PARTICLES
PROTON-NUCLEON INTERACTIONS
PSEUDOSCALAR MESONS
QUARK MODEL
QUARKS
STORAGE RINGS
STRANGE MESONS
STRANGE PARTICLES
TOP PARTICLES
TRANSITION ELEMENTS
WEAK INTERACTIONS
WEAK PARTICLE DECAY