EXCITATION OF THE DELTA (1232)-RESONANCE IN PROTON-NUCLEUS COLLISIONS

被引：24

作者：

TRZASKA, M

PELTE, D

LEMAIRE, MC

ALARD, JP

AUGERAT, J

BACHELIER, D

BASTID, N

BOYARD, JL

CAVATA, C

CHARMENSAT, P

CUGNON, J

DUPIEUX, P

GORODETZKY, P

GOSSET, J

HENNINO, T

JOURDAIN, JC

LEMERDY, A

LHOTE, D

LUCAS, B

MARRONCLE, J

MONTAROU, G

PARIZET, MJ

POITOU, J

QUASSOUD, D

RADVANYI, P

RAMSTEIN, B

RAHMANI, A

ROYSTEPHAN, M

VALETTE, O

VANDERMEULEN, J

ZUPRANSKI, P

机构：

[1] UNIV LIEGE,PHILOSOPHENWEG 12,B-4000 SART,BELGIUM

[2] INST PHYS NUCL,F-91406 ORSAY,FRANCE

[3] CENS,DEPT PHYS NUCL,F-91191 GIF SUR YVETTE,FRANCE

[4] CENS,LAB NATL SATURNE,F-91191 GIF SUR YVETTE,FRANCE

[5] CTR RECH NUCL,F-67037 STRASBOURG,FRANCE

[6] LAB PHYS CORPUSCULAIRE CLERMONT FERRAND,F-63177 CLERMONT FERRAND,FRANCE

来源：

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI | 1991年 / 340卷 / 03期

关键词：

D O I：

10.1007/BF01294681

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The excitation of the DELTA-resonance is observed in proton collisions on C, Nb and Pb targets at 0.8 and 1.6 GeV incident energies. The mass E0 and width LAMBDA of the resonance are determined from the invariant mass spectra of correlated (p, pi +/-)-pairs in the final state of the collision: The mass E0 is smaller than that of the free resonance, however by comparing to intra-nuclear cascade calculations, this reduction is traced back to the effects of Fermi motion, NN scattering and pion reabsorption in nuclear matter.

引用

页码：325 / 331

页数：7

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