Decays of l = 1 baryons to Δγ

被引：50

作者：

Carlson, CE ^{[1
]}

Carone, CD ^{[1
]}

机构：

[1] Coll William & Mary, Nucl & Particle Theory Grp, Dept Phys, Williamsburg, VA 23187 USA

来源：

PHYSICS LETTERS B | 1998年 / 441卷 / 1-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(98)01148-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recently we considered the electromagnetic decays of the orbitally-excited SU(6) 70-plet baryons in large-N-c QCD, fitting to the helicity amplitudes measured in photoproduction experiments. Using the results of this analysis, we predict the helicity amplitudes for the decays N* --> Delta gamma and Delta* --> Delta gamma. These decays can be studied at a number of new experimental facilities, and thus provide another nontrivial test of the lowest order large-N-c predictions. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：363 / 370

页数：8

共 22 条

[1]

Carlson CE, 1998, PHYS REV D, V58, DOI 10.1103/PhysRevD.58.053005

[2]

CARLSON CE, UNPUB PHYS LETT B

[3] ON SPIN INDEPENDENCE IN LARGE NC BARYONS [J].

CARONE, C ;

GEORGI, H ;

OSOFSKY, S .

PHYSICS LETTERS B, 1994, 322 (03) :227-232

[4] DECAYS OF L=1 BARYONS - QUARK-MODEL VERSUS LARGE N-C [J].

CARONE, CD ;

GEORGI, H ;

KAPLAN, L ;

MORIN, D .

PHYSICAL REVIEW D, 1994, 50 (09) :5793-5807

[5] Review of Particle Physics [J].

The European Physical Journal C - Particles and Fields, 1998, 3 (1-4) :1-783

[6]

CLOSE FE, 1979, QUARKS PARTONS

[7] BACKWARD SINGLE PION PHOTOPRODUCTION AND SYMMETRIC QUARK MODEL [J].

COPLEY, LA ;

KARL, G ;

OBRYK, E .

PHYSICS LETTERS B, 1969, B 29 (02) :117-&

[8] SINGLE PION PHOTOPRODUCTION IN QUARK MODEL [J].

COPLEY, LA ;

KARL, G ;

OBRYK, E .

NUCLEAR PHYSICS B, 1969, B 13 (02) :303-&

[9] Flavor symmetry breaking in the 1/N-c expansion [J].

Dai, J ;

Dashen, R ;

Jenkins, E ;

Manohar, AV .

PHYSICAL REVIEW D, 1996, 53 (01) :273-282

[10] 1/N(C) EXPANSION FOR BARYONS [J].

DASHEN, R ;

JENKINS, E ;

MANOHAR, AV .

PHYSICAL REVIEW D, 1994, 49 (09) :4713-4738

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