Vector meson propagation in dense matter

Friman, Bengt

Vector meson propagation in dense matter

Bengt Friman
(
- Darmstadt, GSI and
- Darmstadt, Tech. Hochsch.
)

Oct, 1997

18 pages

Part of Properties of hadrons in matter. Proceedings, APCTP Workshop on astro-hadron physics, Seoul, Korea, October 25-31, 1997, 337-354

Contribution to:

APCTP Workshop on Astro-Hadron Physics: Properties of Hadrons in Matter, 337-354

e-Print:

nucl-th/9801053 [nucl-th]

Report number:

GSI-98-7

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Abstract:

The properties of vector mesons in nuclear matter are discussed. Results for the momentum dependence of the

\rho

-meson self energy in matter due to

\rho N

interactions are presented, and consequences for the production rate of

e^+e^-

pairs in hot and dense matter are discussed. I also examine the constraints imposed by elementary processes on the widths of

\rho

and

\omega

mesons in nuclear matter, and conclude that in recent models the in-medium widths of these mesons are overestimated.

talk: Seoul 1997/10/25
nuclear matter: density
scattering: rho(770) nucleon
rho(770): propagator
momentum dependence
rho(770): electromagnetic decay
rho(770): width
omega(783): electromagnetic decay
omega(783): width
numerical calculations

References(38)

Figures(0)

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