Cosmophysical aspects of relativistic nuclear fragmentation

封面

如何引用文章

全文:

开放存取 开放存取
受限制的访问 ##reader.subscriptionAccessGranted##
受限制的访问 订阅或者付费存取

详细

The status of the study of multiple fragmentation of 950 MeV per nucleon Kr nuclei in a nuclear track emulsion aimed at determining the contributions of 2α decays of 8Be, the Hoyle 3α state, and the search for a 4α particle condensate state, is presented. In events with the production of few relativistic fragments of He and H, the possibility of estimating the multiplicity of neutrons in the fragmentation cone of a projectile nucleus is studied. For the planar component of neutron transverse momenta estimated from the angles of observed secondary stars, the Rayleigh distribution parameter was 35 ± 7 MeV/c. The importance of such events for the interpretation of cosmophysical observations is noted.

全文:

受限制的访问

作者简介

A. Zaitsev

Joint Institute for Nuclear Research; P. N. Lebedev Physical Institute of the Russian Academy of Sciences

编辑信件的主要联系方式.
Email: zaicev@jinr.ru
俄罗斯联邦, Dubna; Moscow

N. Marimuthu

Joint Institute for Nuclear Research

Email: zaicev@jinr.ru
俄罗斯联邦, Dubna

D. Artemenkov

Joint Institute for Nuclear Research

Email: zaicev@jinr.ru
俄罗斯联邦, Dubna

P. Zarubin

Joint Institute for Nuclear Research; P. N. Lebedev Physical Institute of the Russian Academy of Sciences

Email: zaicev@jinr.ru
俄罗斯联邦, Dubna; Moscow

N. Peresadʹko

Email: zaicev@jinr.ru
俄罗斯联邦

V. Rusakova

Joint Institute for Nuclear Research

Email: zaicev@jinr.ru
俄罗斯联邦, Dubna

参考

  1. D. A. Artemenkov, V. Bradnova, O. N. Kashanskaya, N. V. Kondratieva, N. K. Kornegrutsa, E. Mitsova, N. G. Peresadko, V. V. Rusakova, R. Stanoeva, A. A. Zaitsev, I. G. Zarubina, and P. I. Zarubin, Phys. At. Nucl. 85, 528 (2022); doi.org/10.1134/S1063778822060035; arXiv: 2206.09690.
  2. A. Tohsaki, H. Horiuchi, P. Schuck, and G. Ropke, Rev. Mod. Phys. 89, 011002 (2017); doi.org/10.1103/RevModPhys.89.011002
  3. W. von Oertzen, Lect. Notes Phys. 818, 1 (2010); doi.org/10.1007/978-3-642-13899-7_3
  4. J. Abdallah et al. (DELPHI Collab.), Astophys. J. 28, 273 (2007); doi.org/10.1016/j.astropartphys.2007.06.001; arXiv: 0706.2561 [astro-ph].
  5. A. G. Bogdanov, R. P. Kokoulin, G. Manocchi, A. A. Petrukhin, and O. Saavedra, Astophys. J. 98, 13 (2018); doi.org/10.1016/j.astropartphys.2018.01.003
  6. V. S. Vorobev and A. A. Petrukhin, Phys. At. Nucl. 84, 934 (2021); doi.org/10.1134/S1063778821130408
  7. G. Trinchero, M. B. Amelchakov, A. G. Bogdanov, A. Chiavassa, A. N. Dmitrieva, G. Mannocchi, S. S. Khokhlov, R. P. Kokoulin, K. G. Kompaniets, A. A. Petrukhin, V. V. Shutenko, I. A. Shulzhenko, I. I. Yashin, and E. A. Yurina, Astophys. J. 945, 123 (2023); doi.org/10.3847/1538-4357/acb1fc; arXiv: 2210.09690.
  8. S. Typel, G. Röpke, T. Klähn, D. Blaschke, and H. H. Wolter, Phys. Rev. C 81, 015803 (2010); doi.org/10.1103/PhysRevC.81.015803; arXiv.org/ abs/0908.2344 [nucl-th].

补充文件

附件文件
动作
1. JATS XML
下载
2. Fig. 1. Macrophotograph of the peripheral interaction of the 124Xe nucleus with an energy of 3.8 GeV per nucleon (irradiation in 2022 at the NICA accelerator complex).

下载 (284KB)
索引源数据
3. Fig. 2. Distribution in the region of small values of the excess invariant mass Q of pairs (dots), triplets (solid line) and quadruples (shaded region) of α-particles formed in the fragmentation of Kr nuclei.

下载 (67KB)
索引源数据
4. Fig. 3. Distribution of events by multiplicity of relativistic fragments of He and H.

下载 (64KB)
索引源数据
5. Fig. 4. Correlation of the SNS number and the multiplicity of He and H fragments in the fragmentation cone. The number of He and H fragments is given in brackets.

下载 (69KB)
索引源数据
6. Fig. 5. Macrophotographs of secondary stars in the fragmentation cone, interpreted as neutron-induced.

下载 (169KB)
索引源数据
7. Fig. 6. Distribution of SNS star coordinates in the XY focal plane relative to the primary vertex.

下载 (56KB)
索引源数据
8. Fig. 7. Distribution over the plane angle φ of SNS observation relative to the direction of the primary trace, approximated by a Gaussian function (dashed curve).

下载 (56KB)
索引源数据
9. Fig. 8. Distribution of the planar component of the transverse momenta of neutrons in the fragmentation cone, approximated by the Rayleigh function (dashed curve).

下载 (61KB)
索引源数据

版权所有 © Russian Academy of Sciences, 2024