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Titolo:
ANALYZING POWERS AND CROSS-SECTIONS OF (P)OVER-RIGHT-ARROWP-]PN-PI(-THRESHOLD() NEAR)
Autore:
FLAMMANG RW; DAEHNICK WW; DYTMAN SA; TEDESCHI DJ; THOMPSON RA; VRANA T; FOSTER CC; HARDIE JG; JACOBS WW; RINCKEL T; STEPHENSON EJ; PANCELLA PV; BROOKS WK;
Indirizzi:
UNIV PITTSBURGH,DEPT PHYS & ASTRON PITTSBURGH PA 15260 INDIANA UNIV,CYCLOTRON FACIL BLOOMINGTON IN 47408 WESTERN MICHIGAN UNIV,DEPT PHYS KALAMAZOO MI 49007 THOMAS JEFFERSON ACCELERATOR FACIL NEWPORT NEWS VA 23606
Titolo Testata:
Physical review. C. Nuclear physics
fascicolo: 2, volume: 58, anno: 1998,
pagine: 916 - 931
SICI:
0556-2813(1998)58:2<916:APACO(>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
REACTION NEAR-THRESHOLD; NUCLEON-NUCLEON-INTERACTION; MESON-EXCHANGE MODEL; PP->PP-PI(0) REACTION; P+P->P+P+PI-0; SCATTERING; NN->D-PI;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
45
Recensione:
Indirizzi per estratti:
Citazione:
R.W. Flammang et al., "ANALYZING POWERS AND CROSS-SECTIONS OF (P)OVER-RIGHT-ARROWP-]PN-PI(-THRESHOLD() NEAR)", Physical review. C. Nuclear physics, 58(2), 1998, pp. 916-931

Abstract

Analyzing powers for (p) over right arrow-->pn pi(+) were measured for the first time close to threshold at beam energies that yield maximum pion momentum fractions (eta = p(c.m. )(max)/m(pi)c) Of eta = 0.22, 0.42, and 0.50, and enable a decomposition of the low order partial waves. Cross sections were measured at seven different beam energies witheta = 0.07, 0.17, 0.22, 0.28, 0.34, 0.42, and 0.50. The analysis shows that pion s-wave channels dominate the reaction. The p-wave channel containing the Delta resonance contributes, at eta = 0.22, less than one-tenth of the total cross section and less than one-third of the total cross section at eta = 0.42 and 0.50. The nonresonant p-wave channel contributes less than 1% of the cross section at these three energies.

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Documento generato il 05/12/20 alle ore 13:41:52