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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Impact of medium modifications of the nucleon weak and electromagnetic form factors on the neutrino mean free path in dense matter

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Author(s):
Hutauruk, Parada T. P. [1] ; Oh, Yongseok [2, 1] ; Tsushima, K. [3, 1]
Total Authors: 3
Affiliation:
[1] Asia Pacific Ctr Theoret Phys, Pohang 37673, Gyeongbuk - South Korea
[2] Kyungpook Natl Univ, Dept Phys, Daegu 41566 - South Korea
[3] Univ Cruzeiro Sul, Lab Fis Teor & Computac, BR-01506000 Sao Paulo, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Physical Review D; v. 98, n. 1 JUL 30 2018.
Web of Science Citations: 1
Abstract

Impact of the in-medium modified nucleon weak and electromagnetic form factors on the neutrino mean free path in dense matter is studied by considering both the weak and electromagnetic interactions of neutrinos with the constituents of the matter. A relativistic mean field model and the quark-meson coupling model are respectively adopted for the in-medium effective nucleon mass and nucleon form factors. We find that the cross sections of neutrino scattering in cold nuclear medium decrease when the in-medium modifications of the nucleon weak and electromagnetic form factors are taken into account. This reduction results in the enhancement of the neutrino mean free path, in particular at the baryon density of around a few times of the normal nuclear matter density. The enhancement of the neutrino mean free path is estimated to be about 10%-40% compared with the values obtained without the medium modifications of the nucleon form factors, and the enhancement is expected to accelerate the cooling of neutron stars. (AU)

FAPESP's process: 17/05660-0 - Theoretical studies of the structure and reactions of exotic nuclei and many-body systems
Grantee:Brett Vern Carlson
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 15/17234-0 - Properties of hadrons and nuclei in vacuum and medium based on quarks and gluons
Grantee:Kazuo Tsushima
Support Opportunities: Regular Research Grants