Σ photoproduction in the resonance region -: art. no. 035202

被引：0

作者：

Janssen, S ^{[1
]}

Ryckebusch, J ^{[1
]}

Debruyne, D ^{[1
]}

Van Cauteren, T ^{[1
]}

机构：

[1] Univ Ghent, Dept Subatom & Radiat Phys, B-9000 Ghent, Belgium

来源：

PHYSICAL REVIEW C | 2002年 / 66卷 / 03期

关键词：

D O I：

暂无

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

A study of gammap-->KSigma processes in an isobar model at tree level is reported. By comparing model calculations to the published SAPHIR data, we explore the possible role of different isospin I=1/2 (N*) and I=3/2(Delta*) resonances in the reaction dynamics. In our analysis, the inclusion of the "missing" D-13(1895) resonance does only slightly improve the global description of the Sigma photoproduction data. More convincing signals for the presence of such a "missing" resonance emerged in the analysis of the isospin related gammap-->K(+)Lambda reaction. Various implementations of the nonresonant part of the Sigma photoproduction amplitude are presented. The sensitivity of the computed observables and extracted resonance parameters to the uncertainties inherent to the treatment of the nonresonant (background) diagrams are discussed.

引用

页数：12

共 50 条

[41] Radiative corrections to W and quark propagators in the resonance region -: art. no. 113010
Passera, M
Sirlin, A
PHYSICAL REVIEW D, 1998, 58 (11)
[42] Color singlet relativistic correction in J/ψ photoproduction -: art. no. 114502
Paranavitane, CB
McKellar, BHJ
Ma, JP
PHYSICAL REVIEW D, 2000, 61 (11)
[43] Interaction effects in K+ photoproduction on the deuteron -: art. no. 044008
Salam, A
Arenhövel, H
PHYSICAL REVIEW C, 2004, 70 (04): : 044008 - 1
[44] Comment on "Photoproduction of η-mesic 3He" -: art. no. 049101
Hanhart, C
PHYSICAL REVIEW LETTERS, 2005, 94 (04)
[45] Photoproduction of kaons from 3He -: art. no. 034601
Maxwell, OV
PHYSICAL REVIEW C, 2005, 72 (03):
[46] Incoherent η photoproduction from the deuteron near threshold -: art. no. 067002
Sibirtsev, A
Schneider, S
Elster, C
Haidenbauer, J
Krewald, S
Speth, J
PHYSICAL REVIEW C, 2002, 65 (06):
[47] Incoherent π0 photoproduction from complex nuclei -: art. no. 051603
Rodrigues, TE
Arruda-Neto, JDT
Mesa, J
Garcia, C
Shtejer, K
Dale, D
Nakagawa, I
PHYSICAL REVIEW C, 2005, 71 (05):
[48] Color octet contribution to J/ψ photoproduction asymmetries -: art. no. 034022
Japaridze, G
Nowak, WD
Tkabladze, A
PHYSICAL REVIEW D, 2000, 62 (03):
[49] Spin observables and the determination of the parity of Θ+ in photoproduction reaction -: art. no. 012201
Nakayama, K
Love, WG
PHYSICAL REVIEW C, 2004, 70 (01): : 012201 - 1
[50] Quark model predictions for K* photoproduction on the proton -: art. no. 052201
Zhao, Q
Al-Khalili, JS
Bennhold, C
PHYSICAL REVIEW C, 2001, 64 (05): : 522011 - 522015

← 1 2 3 4 5 →