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SUMMARY:GT Nuclear resonances for 71Ga(nu\,e)71Ge reaction investigation
DTSTART;VALUE=DATE-TIME:20200228T072000Z
DTEND;VALUE=DATE-TIME:20200228T074000Z
DTSTAMP;VALUE=DATE-TIME:20260912T084209Z
UID:indico-contribution-1551@indico.tlabs.ac.za
DESCRIPTION:Speakers: Grigory Koroteev (Moscow Institute of Physics and Te
 chnology)\nNeutrino-matter interaction has great importance for neutrino p
 hysics and astrophysics. Neutrino capture cross-section depends on the str
 ucture of the target nucleus strength function. 71Ga(v\,e)71Ge process cou
 ld be analysed using the charge-exchange strength functions of 71Ga(p\,n)7
 1Ge and 71Ga(3He\,t)71Ge reactions. Nuclear phenomenology of charge-exchan
 ge reactions describes not only discrete excited levels\, but also collect
 ive resonant states such as GTR and pygmy-resonances. It is shown that acc
 ounting of GT-resonances increase neutrino capture rate and that capture r
 ate is very sensitive to the exact behavior of the Fermi function at low e
 nergies. We will discuss the quenching effect estimation and the accuracy 
 of B(GT) extraction from experimental data as a function of resonance widt
 h. The talk proposes a comparison of the experimental data processing and 
 calculations obtained in the framework of the self-consistent theory of fi
 nite Fermi systems.\n\nhttps://indico.tlabs.ac.za/event/85/contributions/1
 551/
LOCATION:Main Venue
URL:https://indico.tlabs.ac.za/event/85/contributions/1551/
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