scholarly journals Thermal Photons and Lepton Pairs from Quark Gluon Plasma and Hot Hadronic Matter

2000 ◽  
Vol 286 (2) ◽  
pp. 159-248 ◽  
Author(s):  
Jan-e Alam ◽  
Sourav Sarkar ◽  
Pradip Roy ◽  
T. Hatsuda ◽  
Bikash Sinha
Keyword(s):  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Hadronic Matter ◽  
Lepton Pairs

scholarly journals Nonextensive statistical effects in the quark-gluon plasma formation at relativistic heavy-ion collisions energies

Open Physics ◽  
2012 ◽  
Vol 10 (3) ◽  
Author(s):  
Gianpiero Gervino ◽  
Andrea Lavagno ◽  
Daniele Pigato
Keyword(s):  
Quark Gluon Plasma ◽  
Mean Field ◽  
Relativistic Equation ◽  
Baryon Number ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Baryon Density ◽  
Hadronic Matter ◽  
Relativistic Heavy Ion Collisions ◽  
Relativistic Mean Field

AbstractWe investigate the relativistic equation of state of hadronic matter and quark-gluon plasma at finite temperature and baryon density in the framework of the non-extensive statistical mechanics, characterized by power-law quantum distributions. We impose the Gibbs conditions on the global conservation of baryon number, electric charge and strangeness number. For the hadronic phase, we study an extended relativistic mean-field theoretical model with the inclusion of strange particles (hyperons and mesons). For the quark sector, we employ an extended MIT-Bag model. In this context we focus on the relevance of non-extensive effects in the presence of strange matter.

EFFECTIVE MESONIC AND BARYONIC DEGREES OF FREEDOM IN NEUTRON STARS

2004 ◽  
Vol 13 (07) ◽  
pp. 1365-1373 ◽  
Author(s):  
MANFRED DILLIG ◽  
MATHIAS SCHOTT ◽  
EDUARDO F. LÜTZ ◽  
ALEXANDRE MESQUITA ◽  
CÉSAR A. Z. VASCONCELLOS
Keyword(s):  
Neutron Stars ◽  
Quark Gluon Plasma ◽  
Degrees Of Freedom ◽  
Gluon Plasma ◽  
Hadronic Matter

We present a sketchy survey on the role of effective mesonic and baryonic degrees of freedom in dense hadronic matter and briefly mention still very crude attempts to include constituent quarks degrees of freedom for a transition to a quark gluon plasma.

scholarly journals PROBING THE QUARK-GLUON PLASMA AT THE LHC WITH Z0-TAGGED JETS IN CMS

2007 ◽  
Vol 16 (07n08) ◽  
pp. 1950-1956 ◽  
Author(s):  
CAMELIA MIRONOV ◽  
MARIA CASTRO ◽  
PAUL CONSTANTIN ◽  
GERD J. KUNDE ◽  
RAMONA VOGT
Keyword(s):  
Quark Gluon Plasma ◽  
Hadron Collider ◽  
Gluon Plasma ◽  
Heavy Meson ◽  
Hard Scattering ◽  
Interacting Particles ◽  
Lepton Pairs ◽  
Electromagnetic Probe ◽  
Muon Pairs ◽  
Fragmentation Functions

An important tool in quark-gluon plasma studies at RHIC has been the measurement of dijets investigated via leading hadron correlations. With much higher rates for hard processes at the Large Hadron Collider, studies of Z0-tagged jets become possible. A clear experimental signature is provided by the measurement of muon pairs from the Z0 decays, for which CMS is an ideally suited detector. Instead of measuring back-to-back correlations of two strongly interacting particles, one side is replaced by an electromagnetic probe which propagates through the plasma undisturbed and provides a measurement of the energy of the initial hard scattering. We propose to use lepton-pair tagged jets to study medium-induced partonic energy loss and to measure in-medium parton fragmentation functions. The lepton pairs from semileptonic decays of heavy meson pairs ([Formula: see text] and [Formula: see text]) are a background source for the tagged dilepton-jet signal. We present the calculated signal rates (using PYTHIA) and background rates (using HVQMNR). We also discuss strategies for maximizing the signal-to-background ratio.

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