A new experimental approach to investigate intermediate-energy proton elastic scattering and breakup reactions on exotic nuclei in inverse kinematics

被引：12

作者：

Kiseev, O. A. ^{[1
,2
]}

Aksouh, F. ^{[2
]}

Bleile, A. ^{[2
]}

Bochkarev, O. V. ^{[3
]}

Chulkov, L. V. ^{[3
]}

Cortina-Gil, D. ^{[2
]}

Dobrovolsky, A. V. ^{[1
]}

Egelhof, P. ^{[2
]}

Geissel, H. ^{[2
]}

Hellstroem, M. ^{[2
]}

Isaev, N. B. ^{[1
]}

Komkov, B. G. ^{[1
]}

Matos, M. ^{[2
]}

Moroz, F. V. ^{[1
]}

Muenzenberg, G. ^{[2
]}

Mutterer, M. ^{[4
]}

Mylnikov, V. A. ^{[1
]}

Neumaier, S. R. ^{[2
]}

Pribora, V. N. ^{[3
]}

Seliverstov, D. M. ^{[1
]}

Sergueev, L. O. ^{[1
]}

Shrivastava, A. ^{[2
]}

Suemmerer, K. ^{[2
]}

Weick, H. ^{[2
]}

Winkler, M. ^{[2
]}

Yatsoura, V. I. ^{[1
]}

机构：

[1] Petersburg Nucl Phys Inst PNPI, Gatchina 188300, Russia

[2] GSI Helmholtzzentrum Schwerionenforsch GmbH GSI, D-64291 Darmstadt, Germany

[3] Kurchatov Inst, Moscow 123182, Russia

[4] Tech Univ Darmstadt, Inst Kernphys IKP, D-64289 Darmstadt, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2011年 / 641卷 / 01期

关键词：

Elastic proton scattering; Halo nuclei; Measured cross-section; Liquid-hydrogen target; CROSS-SECTIONS; HE-8; DISTRIBUTIONS; ISOTOPES; REGION;

D O I：

10.1016/j.nima.2011.03.046

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We report on a new experimental setup for the investigation of proton induced reactions on exotic nuclei in inverse kinematics. It was installed and successfully used in the scattering study of intermediate-energy protons (similar to 700 MeV/u) on neutron-rich nuclei (6.8)He produced with the FRagment Separator (FRS) at the GSI facility, Darmstadt. A new pure liquid-hydrogen target was successfully adapted allowing to obtain low-background data as compared to commonly used (CH(2))(n) targets. Absolute differential cross-sections for elastic (p, (6.8)He) scattering were obtained at angles corresponding to 0.05 <= vertical bar t vertical bar <= 0.125 (GeV/c)(2) of the four-momentum transfer squared (-t) leading to the first diffraction minimum and spanning more than two orders of magnitude. They complement an earlier measurement at smaller angles 0.0025 <= vertical bar t vertical bar <= 0.05 (GeV/c)(2) performed at the same energy with an active target. Both data sets agree well in the overlap region t approximate to 0.05 (GeV/c)(2) and enable a refined and comparative study of the radial distribution of the nuclear matter density. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：72 / 86

页数：15

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