Journal
PHYSICAL REVIEW C
Volume 83, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.83.028801
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Funding
- National Research Foundation of Korea [2009-0077273]
- Grants-in-Aid for Scientific Research [20105004, 20244035] Funding Source: KAKEN
- National Research Foundation of Korea [2009-0077273] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We calculated neutrino reactions on Ar-40 for detecting core-collapsing supernovae (SNe) neutrinos. The nucleus was originally exploited to identify the solar neutrino emitted from B-8 produced in pp chains on the Sun. With the higher energy neutrinos emitted from the core-collapsing SNe, contributions from higher multipole transitions, as well as from the Gamow-Teller and Fermi transitions, are shown to be important ingredients for understanding reactions induced by the SN neutrino. Moreover, higher excited states beyond a few states known in experiment diminish significantly the expected large difference between the cross sections of nu(e) and (nu) over bar (e) reactions on Ar-40, which difference is anticipated because of the large Q value in the (nu) over bar (e) reaction. The reduction is shown to lead to a difference between them of only a factor of 2.
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