Emission of forward neutrons by 158A GeV indium nuclei in collisions with Al, Cu, Sn and Pb

被引：5

作者：

Karpechev, E. V. ^{[1
]}

Pshenichnov, I. A. ^{[1
]}

Karavicheva, T. L. ^{[1
]}

Kurepin, A. B. ^{[1
]}

Golubeva, M. B. ^{[1
]}

Guber, F. F. ^{[1
]}

Maevskaya, A. I. ^{[1
]}

Reshetin, A. I. ^{[1
]}

Tiflov, V. V. ^{[1
]}

Topilskaya, N. S. ^{[1
]}

Cortese, P. ^{[2
,3
]}

Dellacasa, G. ^{[2
,3
]}

Arnaldi, R. ^{[4
,5
]}

De Marco, N. ^{[4
,5
]}

Ferretti, A. ^{[4
,5
]}

Gallio, M. ^{[4
,5
]}

Musso, A. ^{[4
,5
]}

Oppedisano, C. ^{[4
,5
]}

Piccotti, A. ^{[4
,5
]}

Scomparin, E. ^{[4
,5
]}

Vercellin, E. ^{[4
,5
]}

Cicalo, C. ^{[6
,7
]}

Puddu, G. ^{[6
,7
]}

Siddi, E. ^{[6
,7
]}

Szymanski, P. ^{[8
,9
]}

Efthymiopoulos, I. ^{[8
]}

机构：

[1] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[2] Dipartimento Sci & Tecnol Avanzate, I-15100 Alessandria, Italy

[3] Ist Nazl Fis Nucl, I-15100 Alessandria, Italy

[4] Univ Turin, I-10125 Turin, Italy

[5] Ist Nazl Fis Nucl, I-10125 Turin, Italy

[6] Univ Cagliari, I-09042 Cagliari, Italy

[7] Ist Nazl Fis Nucl, I-09042 Cagliari, Italy

[8] CERN, Div EP, CH-1211 Geneva 23, Switzerland

[9] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland

来源：

NUCLEAR PHYSICS A | 2014年 / 921卷

基金：

俄罗斯基础研究基金会;

关键词：

Electromagnetic dissociation of nuclei; Ultraperipheral nucleus-nucleus collisions; Zero degree calorimeters; PHOTONEUTRON CROSS-SECTIONS; GIANT-DIPOLE RESONANCE; HEAVY; MULTIFRAGMENTATION; EXCITATION;

D O I：

10.1016/j.nuclphysa.2013.11.003

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 cross sections of forward emission of one, two and three neutrons by 158A GeV In-115 nuclei in collisions with Al, Cu, Sn and Pb targets are reported. The measurements were performed in the framework of the ALICE-LUMI experiment at the SPS facility at CERN. Various corrections accounting for the absorption of beam nuclei and produced neutrons in target material and surrounding air were introduced. The corrected cross section data are compared with the predictions of the RELDIS model for electromagnetic fragmentation of In-115 in ultraperipheral collisions, as well as with the results of the abrasion ablation model for neutron emission in hadronic interactions. The measured neutron emission cross sections well agree with the RELDIS results, with the exception of In-Al collisions where the measured cross sections are larger compared to RELDIS. This is attributed to a relatively large contribution of hadronic fragmentation of In on Al target with respect to electromagnetic fragmentation, in contrast to similar measurements performed earlier with 30A GeV Pb-208 colliding with Al. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：60 / 84

页数：25

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