Pentaquark Theta+ mass and width in dense matter

Kim, Hyun-Chul; Lee, Chang-Hwan; Lee, Hee-Jung

Pentaquark Theta+ mass and width in dense matter

Feb, 2004

8 pages

Published in:

J.Korean Phys.Soc. 46 (2005) 393-396

e-Print:

hep-ph/0402141 [hep-ph]

Report number:

PNU-NTG-03-2004,
PNU-NURI-02-2004

View in:

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Abstract:

We investigate medium modifications of the pentaquark

\Theta^+

in dense medium, taking into account different parities of the exotic

\Theta^+

baryon. We find that the chemical potential of the

\Theta^+

is shifted in a density-dependent way to one-loop order. We also investigated the effect of the scaled nucleon mass in dense medium on the

\Theta^+

propagator. The results turn out to depend sensitively on the scaled nucleon mass and on the parity of the

\Theta^+

.

12.40.-y
14.20.Dh
pentaquark Theta+
dense matter
heavy ion collisions
baryon resonance: exotic
pentaquark
nuclear matter
Theta(1540): mass
Theta(1540): width

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