Электронный каталог

Статья

Bashkanov, M.
First Measurement of Polarisation Transfer C&sup(n)&sub(x') in Deuteron Photodisintegration / M.Bashkanov, N.Borisov, I.Gorodnov, V.L.Kashevarov, A.Lazarev, A.Neganov, Yu.A.Usov, [et al.] // Physics Letters B [Electronic resource]. – 2023. – Vol.844. – P.138080. – URL: https://doi.org/10.1016/j.physletb.2023.138080. – Bibliogr.:40.

A first measurement of the polarisation transfer from a circularly-polarised photon to the final state neutron (Cnx) in deuterium photodisintegration has been carried out. This quantity is determined over the photon energy range 370–700MeV and for neutron centre-of-mass breakup angles ∼45 −120◦. The polarisation of the final state neutrons was determined by an ancillary large-acceptance nucleon polarimeter, surrounding a cryogenic liquid deuterium target within the Crystal Ball detector at MAMI. The polarimeter characterised (n, p)charge exchange of the ejected neutrons to determine their polarisation. The new Cnx data are also compared to a theoretical model based on nucleonic and nucleon resonance degrees of freedom constrained by the current world-database of deuterium 138080photodisintegration measurements. Structures in Cnx observed in the region of the d∗(2380)could not be explained by conventional models of deuteron photodisintegration.



Спец.(статьи,препринты) = С 344.1и1 - Пропорциональные камеры
Спец.(статьи,препринты) = С 343 и - Поляризационные эффекты в ядерных реакциях. Угловые корреляции
ОИЯИ = ОИЯИ (JINR)2023
Бюллетени = 5/024