---

Prog. Theor. Phys. Supplement No.149 (2003) pp. 49-55

Nuclear Media Effects on Production and Decay of Vector Meson Studied in 12 GeV p+A Interaction

Hideto En'yo,¹ Junsei Chiba,² Haruhiko Funahashi,³ Hideki Hamagaki,⁴ Masaharu Ieiri,² Masaya Ishino,⁵ Hiroki Kanda,⁶ Masaaki Kitaguchi,³ Satoshi Mihara,^3,* T. Miyashita,^3,** Tetsuya Murakami,³ Ryotaro Muto,¹ Megumi Naruki,³ Masaharu Nomachi,^2,*** Kyoichiro Ozawa,⁴ Fuminori Sakuma,³ Osamu Sasaki,² H. D. Sato,³ Michiko Sekimoto,² Tsuguchika Tabaru,¹ K. H. Tanaka,² S. Yadama,³ Satoshi Yokkaichi¹ and Y. Yoshimura^3,****

¹RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan
²KEK, Tsukuba 305-0801, Japan
³Department of Physics, Kyoto University, Kyoto 606-8502, Japan
⁴Center for Nuclear Study, Graduate School of Science, University of Tokyo, Tokyo 113-0033, Japan
⁵ICEPP, University of Tokyo, Tokyo 113-0033, Japan
⁶Physics Department, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan

(Received May 2, 2003)

Abstract:

The experiment E325 has been carried out at KEK-PS to investigate nuclear media effects on the invariant mass spectra of ρ, ω and φ mesons through their decays in the e⁺e^- or K⁺K^- channels. From the earlier data, the experiment has reported the signature of in-medium mass modification of ρ and/or ω mesons for the first time. This manuscript describes our preliminary results based on the data aquired in the allocated beam time of ∼3200 hours, which ended in February 2002.

URL : http://ptp.ipap.jp/link?PTPS/149/49/
DOI : 10.1143/PTPS.149.49

^*Present address: ICEPP, University of Tokyo, Tokyo 113-0033, Japan.
^**Present address: Fujitsu Corporation, 4-1-1 Kamikodanaka, Nakahara, Kawasaki 211-8588, Japan.
^***Present address: Department of Physics, Osaka University, Toyonaka 560-0043, Japan.
^****Present address: Xaxon Corporation, 1-3-19 Tanimachi, Osaka 540-0012, Japan.

[ Full Text PDF : FREE ACCESS (221K) ] Citation: Plain Text BiBTeX EndNote(RIS) RSS

---

References:

1. T. Hatsuda and S. H. Lee, Phys. Rev. C 46 (1992), R34[APS].
2. K. Ozawa et al., Phys. Rev. Lett. 86 (2001), 5019[APS].
3. G. Agakichiev et al., Eur. Phys. J. C 4 (1998), 231.
4. G. J. Lolos et al., Phys. Rev. Lett. 80 (1998), 241[APS]; Phys. Lett. B 528 (2002), 65[CrossRef].
5. I. Adachi et al., Nucl. Instrum. Methods A 355 (1995), 390.
6. M. Ishino et al., Nucl. Instrum. Methods A 457 (2001), 581.
7. M. Sekimoto et al., to appear in Nucl. Instrum. Methods.
8. S. Yokkaichi, Memoirs of the Faculty of Science, Kyoto Univ., Series of Physics, Astrophysics, Geophysics and Chemistry, Vol. 41, No.1 (2001), Article 3 (doctor thesis).
   M. Ishino, Memoirs of the Faculty of Science, Kyoto Univ., Series of Physics, Astrophysics, Geophysics and Chemistry, Vol. 42, No.1 (2001), Article 1 (doctor thesis).
   S. Yokkaichi et al., Proc. of international Nuclear Physics Conference (INPC2001), Berkeley 2001, Nuclear Physics in the 21st century, p. 551 (doctor thesis).
9. Y. Nara et al., Phys. Rev. C 61 (1999), 024901[APS].
10. V. Blobel et al., Phys. Lett. B 48 (1974), 73[CrossRef].
11. D. Cabera, E. Oset and M. J. Vicente Vacas, Nucl. Phys. A 705 (2002), 90[CrossRef].

Citing Article(s) :

1. Progress of Theoretical Physics Vol. 115 No. 2 (2006) pp. 381-409 :

   The φ-Meson Mass Shift in Medium Using a Chiral Effective Lagrangian

   Hitoshi Kuwabara

2. Progress of Theoretical Physics Supplement No.149 (2003) pp. 247-256 :

   Lattice Study of QCD Vacuum at Finite Baryon Number Density

   Shin Muroya, Atsushi Nakamura and Chiho Nonaka

---

[PTP HOME] [BROWSE] [SEARCH] [SUBSCRIPTION] [SUBMISSION] [REGISTRATION]

Copyright © Progress of Theoretical Physics 2013 All rights reserved.