Scalar dipion states produced in heavy quarkonium decays and the final state interaction

被引：13
作者：
Uehara, M
机构：
[1] Saga 840-0921
来源：
PROGRESS OF THEORETICAL PHYSICS | 2003年 / 109卷 / 02期
关键词：
D O I：
10.1143/PTP.109.265
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study phenomenologically the invariant mass spectra of scalar dipion states produced in cascade decays of excited Y and psi, and J/psi decays into light vector mesons. The dipion production amplitude is given as a product in the Born term and an effective scalar form factor written in terms of a unitarized chiral theory. The model reproduces the experimental mass spectra very well.
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页码：265 / 277
页数：13
相关论文
共 32 条
[11]  
HANNA T, 1996, PHYS REV D, V54, P4654
[12]   Inverse amplitude method and chiral perturbation theory to two loops [J].
Hannah, T .
PHYSICAL REVIEW D, 1997, 55 (09) :5613-5626
[13]   The σ-meson production in excited Υ decay processes:: constraint from chiral symmetry [J].
Ishida, M ;
Ishida, S ;
Komada, T ;
Matsumoto, SI .
PHYSICS LETTERS B, 2001, 518 (1-2) :47-54
[14]   The σ-meson production in excited Υ decay processes:: phenomenological analyses [J].
Komada, T ;
Ishida, M ;
Ishida, S .
PHYSICS LETTERS B, 2001, 508 (1-2) :31-36
[15]   OZI-VIOLATING DIPION DECAYS OF HEAVY QUARKONIA VIA AN INTERMEDIATE HEAVY MESON PAIR STATE [J].
LIPKIN, HJ ;
TUAN, SF .
PHYSICS LETTERS B, 1988, 206 (02) :349-353
[16]   Radiative decay of ρ0 and φ mesons in a chiral unitary approach [J].
Marco, E ;
Hirenzaki, S ;
Oset, E ;
Toki, H .
PHYSICS LETTERS B, 1999, 470 (1-4) :20-26
[17]  
Meissner U.-G., 1991, Comments on Nuclear and Particle Physics, V20, P119
[18]   J/ψ → φππ(KK) decays, chiral dynamics and OZI violation [J].
Meissner, UG ;
Oller, JA .
NUCLEAR PHYSICS A, 2001, 679 (3-4) :671-697
[19]   COUPLED-CHANNEL EFFECTS IN THE DECAY UPSILON(3S)-]UPSILON(1S)PI+PI- [J].
MOXHAY, P .
PHYSICAL REVIEW D, 1989, 39 (11) :3497-3499
[20]  
Nicola AG, 2002, PHYS REV D, V65, DOI 10.1103/PhysRevD.65.054009
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