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Titolo:
THRESHOLD STRUCTURE OF THE QUASI-FREE P-]D+ETA REACTION(N)
Autore:
CALEN H; DYRING J; FRANSSON K; GUSTAFSSON L; HAGGSTROM S; HOISTAD B; JOHANSON J; JOHANSSON A; JOHANSSON T; KHOUKAZ A; KULLANDER S; RUBER RJMY; ZLOMANCZUK J; MOROSOV B; POVTOREJKO A; SUKHANOV A; ZERNOV A; KUPSC A; MARCINIEWSKI P; STEPANIAK J; BILGER R; BRODOWSKI W; CLEMENT H; WAGNER GJ; EKSTROM C; ZABIEROWSKI J; BONDAR A; KUZMIN A; SHWARTZ B; SIDOROV V; SUKHANOV A; TUROWIECKI A; WILHELMI Z; KILIAN K; OELERT W; SEFZICK T; SOPOV V; TCHERNYCHEV V;
Indirizzi:
UNIV UPPSALA,DEPT RADIAT SCI,BOX 535 S-75121 UPPSALA SWEDEN JOINT INST NUCL RES MOSCOW 101000 RUSSIA INST NUCL STUDIES PL-00681 WARSAW POLAND UNIV TUBINGEN,INST PHYS D-72076 TUBINGEN GERMANY SVEDBERG LAB S-75121 UPPSALA SWEDEN INST NUCL STUDIES PL-90137 LODZ POLAND BUDKER INST NUCL PHYS NOVOSIBIRSK 630090 RUSSIA UNIV WARSAW,INST EXPT PHYS PL-0061 WARSAW POLAND KFA JULICH GMBH,FORSCHUNGSZENTRUM,IKP D-52425 JULICH GERMANY INST THEORET & EXPT PHYS MOSCOW 117259 RUSSIA
Titolo Testata:
Physical review letters
fascicolo: 10, volume: 80, anno: 1998,
pagine: 2069 - 2072
SICI:
0031-9007(1998)80:10<2069:TSOTQP>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
13
Recensione:
Indirizzi per estratti:
Citazione:
H. Calen et al., "THRESHOLD STRUCTURE OF THE QUASI-FREE P-]D+ETA REACTION(N)", Physical review letters, 80(10), 1998, pp. 2069-2072

Abstract

The quasifree p + n --> d + eta reaction cross section has been measured at the threshold using 1295 MeV protons in the CELSIUS storage ring and an internal cluster-jet deuterium target. The kinematics is chosen such that the target proton can be assumed to be a spectator. The Fermi momentum of the target neutron is used to extract the energy dependence of the cross section by reconstructing the kinematics on an event-by-event basis. The data cover excess energies from threshold to 10MeV in the center of mass of the final d eta system. Approaching the threshold the cross section is enhanced compared to what is expected from phase space. This behavior is typical for a strong final-state interaction.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 13:38:45