Elliptic flow of thermal dileptons in relativistic nuclear collisions - INSPIRE

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Elliptic flow of thermal dileptons in relativistic nuclear collisions

Rupa Chatterjee
(
- Calcutta, VECC
)
,
Dinesh K. Srivastava
(
- Calcutta, VECC
)
,
Ulrich W. Heinz
(
- Ohio State U.
)
,
Charles Gale
(
- McGill U.
)

Feb, 2007

8 pages

Published in:

Phys.Rev.C 75 (2007) 054909

e-Print:

nucl-th/0702039 [nucl-th]

DOI:

10.1103/PhysRevC.75.054909

View in:

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Abstract:

We calculate the transverse momentum and invariant mass dependence of elliptic flow of thermal dileptons for Au+Au collisions at the Relativistic Heavy Ion Collider. The system is described using hydrodynamics, with the assumption of formation of a thermalized quark-gluon plasma at some early time, followed by cooling through expansion, hadronization and decoupling. Dileptons are emitted throughout the expansion history: by annihilation of quarks and anti-quarks inthe early quark-gluon plasma stage and through a set of hadronic reactions during the late hadronic stage. The resulting differential elliptic flow exhibits a rich structure, with different dilepton mass windows providing access to different stages of the expansion history. Elliptic flow measurements for dileptons,combined with those of hadrons and direct photons, are a powerful tool for mapping the time-evolution of heavy-ion collisions.

12.38.Mh
25.75.-q
scattering: heavy ion
gold
lepton: pair production
fireball
hydrodynamics
critical phenomena
quark gluon: plasma
matter: hadronic

References(80)

Figures(0)

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)
,
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)
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)

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(
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)
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PHENIX

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J. Adams
(
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)

et al.

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•
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•
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(
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)
,
Charles Gale
(
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)
,
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(
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)
,
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(
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)

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•
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Steffen A. Bass
(
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)
,
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(
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)
,
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(
- McGill U.
)

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•
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Steffen A. Bass
(
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)
,
Berndt Muller
(
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)
,
Dinesh K. Srivastava
(
- McGill U.
)

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•
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Thorsten Renk
(
- Duke U.
)
,
Steffen A. Bass
(
- Duke U. and
- RIKEN BNL
)
,
Dinesh K. Srivastava
(
- Calcutta, VECC
)

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•
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Rainer J. Fries
(
- Duke U.
)
,
Berndt Muller
(
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)
,
Dinesh K. Srivastava
(
- Duke U. and
- McGill U.
)

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•
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Rainer J. Fries
(
- Minnesota U.
)
,
Berndt Muller
(
- Duke U.
)
,
Dinesh K. Srivastava
(
- Calcutta, VECC
)

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•
e-Print:
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•
DOI:
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Centrality dependence of direct photon production in s(NN)**(1/ 2) = 200-GeV Au + Au collisions

PHENIX

Collaboration

•

S.S. Adler
(
- Brookhaven
)

et al.

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•
e-Print:
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•
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Low mass dilepton production at RHIC energies

PHENIX

Collaboration

•

Kyoichiro Ozawa

et al.

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•
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- Phys.Rev.C 43 421

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