New relations for excited baryons in large-Nc QCD -: art. no. 012001

被引：217

作者：

Cohen, TD ^{[1
]}

Lebed, RF

机构：

[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[2] Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.91.012001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that excited baryons in large-N-c QCD form multiplets, within which masses are first split at O(1/N-c). The dominant couplings of resonances to various mesons are highly constrained: The N(1535) decays at leading 1/N-c order exclusively to eta-N rather than pi-N, and vice versa for the N(1650). This multiplet structure is reproduced by a simple large-N-c quark model, well studied in the literature, that describes resonances as single-quark excitations.

引用

页数：4

共 31 条

[1] Particles and field .1. Review of particle physics [J].

Barnett, RM ;

Carone, CD ;

Groom, DE ;

Trippe, TG ;

Wohl, CG ;

Armstrong, B ;

Gee, PS ;

Wagman, GS ;

James, F ;

Mangano, M ;

Monig, K ;

Montanet, L ;

Feng, JL ;

Murayama, H ;

Hernandez, JJ ;

Manohar, A ;

AguilarBenitez, M ;

Caso, C ;

Crawford, RL ;

Roos, M ;

Tornqvist, NA ;

Hayes, KG ;

Hagiwara, K ;

Nakamura, K ;

Tanabashi, M ;

Olive, K ;

Honscheid, K ;

Burchat, PR ;

Shrock, RE ;

Eidelman, S ;

Schindler, RH ;

Gurtu, A ;

Hikasa, K ;

Conforto, G ;

Workman, RL ;

Grab, C ;

Amsler, C .

PHYSICAL REVIEW D, 1996, 54 (01) :1-+

[2]

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

[3] Decays of l = 1 baryons to Δγ [J].

Carlson, CE ;

Carone, CD .

PHYSICS LETTERS B, 1998, 441 (1-4) :363-370

[4] Masses of orbitally excited baryons in large Nc QCD [J].

Carlson, CE ;

Carone, CD ;

Goity, JL ;

Lebed, RF .

PHYSICS LETTERS B, 1998, 438 (3-4) :327-335

[5] Predictions for decays of radially excited baryons [J].

Carlson, CE ;

Carone, CD .

PHYSICS LETTERS B, 2000, 484 (3-4) :260-266

[6]

Carlson CE, 1999, PHYS REV D, V59, DOI 10.1103/PhysRevD.59.114008

[7] 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

[8] Excited baryons in large Nc QCD reexamined:: The resonance picture versus single-quark excitations -: art. no. 096008 [J].

Cohen, TD ;

Lebed, RF .

PHYSICAL REVIEW D, 2003, 67 (09)

[9] Honesty Among Lawyers: Moral Character, Game Framing, and Honest Disclosures in Negotiations [J].

Cohen, Taya R. ;

Helzer, Erik G. ;

Creo, Robert A. .

NEGOTIATION JOURNAL, 2022, 38 (02) :199-234

[10] 1/NC CORRECTIONS TO THE BARYON AXIAL CURRENTS IN QCD [J].

DASHEN, R ;

MANOHAR, AV .

PHYSICS LETTERS B, 1993, 315 (3-4) :438-440

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