$\phi$ meson in nuclear matter and nuclei - INSPIRE

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$\phi$ meson in nuclear matter and nuclei

J.J. Cobos-Martínez
(
- CINVESTAV, IPN and
- Cruzeiro do Sul U.
)
,
K. Tsushima
(
- Cruzeiro do Sul U.
)
,
G. Krein
(
- Sao Paulo, IFT
)
,
A.W. Thomas
(
- Adelaide U., Sch. Chem. Phys. and
- Adelaide U.
)

Nov 27, 2017

6 pages

Part of Proceedings, 17th International Conference on Hadron Spectroscopy and Structure (Hadron 2017) : Salamanca, Spain, September 25-29, 2017, 209

Published in:

PoS Hadron2017 (2018) 209

Contribution to:

- HADRON 2017
, 209

Published: Nov 27, 2017 by SISSA

e-Print:

1711.09895 [nucl-th]

DOI:

10.22323/1.310.0209

Report number:

LFTC-17-20-20

View in:

ADS Abstract Service

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Abstract: (SISSA)

The mass and decay width of the

\phi

meson in cold nuclear matter are computed in an effective Lagrangian approach, with the mediumdependence of these properties obtained by evaluating kaon-antikaon loop contributions to the

\phi

self-energy.At normal nuclear matter density, we find a downward shift of the

\phi

mass by a few percent, while the decay width is enhanced by an order of magnitude. We also present

\phi

--nucleus bound state energies and absorption widths for some selected nuclei, using complex optical potentials obtained in the local density approximation. Our results suggest that the

\phi

should form bound states with all the nuclei considered. However, the identification of the signal for these predicted bound states will need careful investigation because of their sizable absorption widths.

Note:

To appear in the proceedings of the XVII International Conference on Hadron Spectroscopy and Structure, Hadron2017, 25-29 September 2017, Salamanca, Spain. arXiv admin note: text overlap with arXiv:1711.06358

approximation: density
nuclear matter: density
bound state: energy
potential: optical
density: local
meson nucleus
numerical calculations
Klein-Gordon equation
effective Lagrangian
Phi(1020): propagator

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