Simple description of pi pi scattering to 1 GeV

被引：205

作者：

Harada, M ^{[1
]}

Sannino, F ^{[1
]}

Schechter, J ^{[1
]}

机构：

[1] UNIV NAPLES, DIPARTIMENTO SCI FIS, I-80125 NAPLES, ITALY

来源：

PHYSICAL REVIEW D | 1996年 / 54卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.54.1991

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Motivated by the 1/N-c expansion, we present a simple model of pi pi scattering as a sum of a current-algebra contact term and resonant pole exchanges. The model preserves crossing symmetry as well as unitarity up to 1.2 GeV. Key features include chiral dynamics, vector meson dominance, a broad low energy scalar (sigma) meson, and a Ramsauer-Townsend mechanism for the understanding of the 980 MeV region. We discuss in detail the regularization (corresponding to rescattering effects) necessary to make all these nice features work.

引用

页码：1991 / 2004

页数：14

共 31 条

[1]

ALEKSEEVA EA, 1982, ZH EKSP TEOR FIZ, V55, P591

[2] ASYMPTOTIC RESTRICTIONS AND THE GENERALIZED SKYRME MODELS [J].

ANDRIANOV, VA ;

MANASHOV, AN .

MODERN PHYSICS LETTERS A, 1993, 8 (23) :2199-2204

[3]

[Anonymous], 1949, QUANTUM THEORY FIELD

[4] IS THERE A P-WAVE BOUND-STATE OF W(L)W(L) - ON THE DYNAMIC GENERATION OF A RHO-MESON IN THE SIGMA-MODEL [J].

ATKINSON, D ;

HARADA, M ;

SANDA, AI .

PHYSICAL REVIEW D, 1992, 46 (09) :3884-3893

[5] NONLINEAR REALIZATION AND HIDDEN LOCAL SYMMETRIES [J].

BANDO, M ;

KUGO, T ;

YAMAWAKI, K .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1988, 164 (4-5) :217-314

[6] LOW-ENERGY PI-PI SCATTERING IN THE LARGE-NC LIMIT OF QCD [J].

BOLOKHOV, AA ;

MANASHOV, AN ;

POLYAKOV, MV ;

VERESHAGIN, VV .

PHYSICAL REVIEW D, 1993, 48 (07) :3090-3097

[7] AMPLITUDE ANALYSIS OF THE K-K+ SYSTEM PRODUCED IN THE REACTIONS PI-P-]K-K+N AND PI+N-]K-K+P AT 6 GEV-C [J].

COHEN, D ;

AYRES, DS ;

DIEBOLD, R ;

KRAMER, SL ;

PAWLICKI, AJ ;

WICKLUND, AB .

PHYSICAL REVIEW D, 1980, 22 (11) :2595-2623

[8]

Coleman S., 1985, ASPECTS SYMMETRY

[9] DYNAMICAL GENERATION OF THE GAUGED SU(2) LINEAR SIGMA-MODEL [J].

DELBOURGO, R ;

SCADRON, MD .

MODERN PHYSICS LETTERS A, 1995, 10 (03) :251-266

[10] HYPERFINE-INTERACTION MESON SPECTROSCOPY AND THE LINKAGE BETWEEN CONTITUENT-QUARK, DYNAMICAL-QUARK, AND CURRENT-QUARK MASSES [J].

ELIAS, V ;

TONG, M ;

SCADRON, MD .

PHYSICAL REVIEW D, 1989, 40 (11) :3670-3674

← 1 2 3 4 →