中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Angular distributions of light projectile fragments in deep inelastic Pb+Em interactions at 160 A GeV

文献类型:期刊论文

;
作者EMU
刊名EUROPEAN PHYSICAL JOURNAL A ; EUROPEAN PHYSICAL JOURNAL A
出版日期1999 ; 1999
卷号6期号:4页码:421-425
关键词COLLISIONS COLLISIONS
DOI10.1007/s100500050365
通讯作者Adamovich, MI (reprint author), PN Lebedev Phys Inst, Leninsky Prospect 53, Moscow 117924, Russia. ; Adamovich, MI (reprint author), PN Lebedev Phys Inst, Leninsky Prospect 53, Moscow 117924, Russia.
英文摘要The nuclear emulsion was exposed at CERN by the lead projectile at 160 A GeV. The angles between any pair of fragments with Z = 2 - 4 have been measured in the emulsion plane for the events which did not contain heavy fragments. The constant characterizing the normal angle (cp) distribution of the fragment momentum projection onto the emulsion plane with respect to initial projectile momentum Po is found to be sigma(phi) = (0.37 +/- 0.02) mrad. Corresponding value sigma(o) = (121 +/- 6) MeV/c of nucleon momentum distribution in the lead nucleus coincides with that expected from Fermi momentum distribution for this nucleus. The peak in the pair-angle distribution of double-charged fragments, Be-8 --> 2 alpha, is presented for the region of small angles (< 0.1 mrad). The fraction of alpha-particles coming from the decay of the ground state Be-8 is found to be (13 +/- 2)% of their whole number.; The nuclear emulsion was exposed at CERN by the lead projectile at 160 A GeV. The angles between any pair of fragments with Z = 2 - 4 have been measured in the emulsion plane for the events which did not contain heavy fragments. The constant characterizing the normal angle (cp) distribution of the fragment momentum projection onto the emulsion plane with respect to initial projectile momentum Po is found to be sigma(phi) = (0.37 +/- 0.02) mrad. Corresponding value sigma(o) = (121 +/- 6) MeV/c of nucleon momentum distribution in the lead nucleus coincides with that expected from Fermi momentum distribution for this nucleus. The peak in the pair-angle distribution of double-charged fragments, Be-8 --> 2 alpha, is presented for the region of small angles (< 0.1 mrad). The fraction of alpha-particles coming from the decay of the ground state Be-8 is found to be (13 +/- 2)% of their whole number.
学科主题Physics ; Physics
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
收录类别SCI
语种英语 ; 英语
WOS记录号WOS:000084668500011 ; WOS:000084668500011
公开日期2016-02-25
源URL[http://ir.ihep.ac.cn/handle/311005/212011]  
专题高能物理研究所_粒子天体物理中心
作者单位中国科学院高能物理研究所
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EMU. Angular distributions of light projectile fragments in deep inelastic Pb+Em interactions at 160 A GeV, Angular distributions of light projectile fragments in deep inelastic Pb+Em interactions at 160 A GeV[J]. EUROPEAN PHYSICAL JOURNAL A, EUROPEAN PHYSICAL JOURNAL A,1999, 1999,6, 6(4):421-425, 421-425.
APA EMU.(1999).Angular distributions of light projectile fragments in deep inelastic Pb+Em interactions at 160 A GeV.EUROPEAN PHYSICAL JOURNAL A,6(4),421-425.
MLA EMU."Angular distributions of light projectile fragments in deep inelastic Pb+Em interactions at 160 A GeV".EUROPEAN PHYSICAL JOURNAL A 6.4(1999):421-425.

入库方式: OAI收割

来源:高能物理研究所

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