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

Journal Article · Tue Dec 21 23:00:00 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, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1317; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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