INVESTIGATION OF PION ABSORPTION IN HEAVY-ION INDUCED SUBTHRESHOLD-PI-0 PRODUCTION

被引：22

作者：

MAYER, RS

HENNING, W

HOLZMANN, R

SIMON, RS

DELAGRANGE, H

LEFEVRE, F

MATULEWICZ, T

MERROUCH, R

MITTIG, W

OSTENDORF, RW

SCHUTZ, Y

BERG, FD

KUHN, W

METAG, V

NOVOTNY, R

PFEIFFER, M

BOONSTRA, AL

LOHNER, H

VENEMA, LB

WILSCHUT, HW

ARDOUIN, D

DABROWSKI, H

ERAZMUS, B

LEBRUN, C

SEZAC, L

BALLESTER, F

CASAL, E

DIAZ, J

FERRERO, JL

MARQUES, M

MARTINEZ, G

NIFENECKER, H

FORNAL, B

FRIENDL, L

SUJKOWSKI, Z

机构：

[1] UNIV WARSAW, PL-00325 WARSAW, POLAND

[2] GRAND ACCELERATEUR NATL IONS LOURDS, F-14021 CAEN, FRANCE

[3] UNIV GIESSEN, INST PHYS 2, W-6300 GIESSEN, GERMANY

[4] KERNFYS VERSNELLER INST, 9747 AA GRONINGEN, NETHERLANDS

[5] LAB PHYS NUCL, F-44072 NANTES 03, FRANCE

[6] IST FIS CORPUSCULAR, E-46100 BURJASSOT, SPAIN

[7] UNIV GRENOBLE 1, INST SCI NUCL, F-38026 ST MARTIN DHERES, FRANCE

[8] INST NUCL PHYS, PL-31342 KRAKOW, POLAND

[9] SOLTAN INST NUCL STUDIES, PL-05400 OTWOCK, POLAND

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.70.904

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present results from an experimental study of reabsorption effects in subthreshold pi0 production in the reaction Xe-129 + Au-197 at 44 MeV/nucleon. Within the picture of pion generation in nucleon-nucleon scattering we deduce, from our data and from a comparison with the systematics of production cross sections available for lighter reaction systems, information on the pi0 absorption length in nuclear matter. For the pi0 kinetic-energy range congruent-to 5-100 MeV the energy-averaged lambda(abs) and its momentum dependence are obtained, and compared with optical-model calculations.

引用

页码：904 / 907

页数：4

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