Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
KINEMATICALLY COMPLETE MEASUREMENT OF PP-]PN-PI(-THRESHOLD() NEAR)
Autore:
HARDIE JG; DYTMAN SA; DAEHNICK WW; BROOKS WK; FLAMMANG RW; BLAND LC; JACOBS WW; PANCELLA PV; RINCKEL T; BROWN JD; JACOBSEN E;
Indirizzi:
CHRISTOPHER NEWPORT UNIV,DEPT PHYS & COMP SCI NEWPORT NEWS VA 23601 UNIV PITTSBURGH,DEPT PHYS & ASTRON PITTSBURGH PA 15260 INDIANA UNIV,CYCLOTRON FACIL BLOOMINGTON IN 47408 PRINCETON UNIV,DEPT PHYS PRINCETON NJ 08540
Titolo Testata:
Physical review. C. Nuclear physics
fascicolo: 1, volume: 56, anno: 1997,
pagine: 20 - 37
SICI:
0556-2813(1997)56:1<20:KCMOPN>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
TOTAL CROSS-SECTION; MESON-EXCHANGE MODEL; NEAR-THRESHOLD; INTERMEDIATE ENERGIES; PP->PP-PI(0) REACTION; P+P->P+P+PI-0; SCATTERING; AMPLITUDES; NN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
53
Recensione:
Indirizzi per estratti:
Citazione:
J.G. Hardie et al., "KINEMATICALLY COMPLETE MEASUREMENT OF PP-]PN-PI(-THRESHOLD() NEAR)", Physical review. C. Nuclear physics, 56(1), 1997, pp. 20-37

Abstract

Cross sections for pp-->pn pi(+) have been measured at incident proton energies of 294.3, 299.3, 306.3, 314.1, and 319.2 MeV (0.11 < eta < 0.42) to investigate hadronic pi(+) production near threshold. Pion angular distributions are presented for 294.3, 299.3, and 319.2 MeV. At 294.3 and 299.3 MeV they are consistent with isotropy, indicating s-wave dominance for the angular momentum of the phi(+)pn system. The shapes of the pn, n pi(+), and p pi(+) invariant mass distributions provide further evidence for dominance of s-wave mechanisms close to threshold. At 319.2 MeV significant anisotropy indicates contributions from higher partial waves. The total cross sections show an energy dependence consistent with an early partial conservation of axial current basedcalculation and with a recent calculation that considers only s-wave contributions. Tentative values for the strongest contributing partialwave amplitudes are presented.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 13:03:15