Time-reversal invariance violation effect in dd scattering  

作　　者：M.N.Platonova Yu.N.Uzikov 

机构地区：[1]Skobeltsyn Institute of Nuclear Physics,Lomonosov Moscow State University,Leninskie Gory 1/2,119991 Moscow,Russia [2]Dzhelepov Laboratory of Nuclear Problems,Joint Institute for Nuclear Research,Joliot-Curie 6,141980 Dubna,Moscow region,Russia [3]Faculty of Physics,Lomonosov Moscow State University,Leninskie Gory 1,119991 Moscow,Russia

出　　处：《Chinese Physics C》2025年第3期143-152,共10页中国物理C(英文版)

基　　金：the expense of the grant from the Russian Science Foundation(23-22-00123,https://rscf.ru/en/project/23-22-00123/)。

摘　　要：A formalism is developed for calculating the signal of the violation of time-reversal invariance,provided that space-reflection(parity)invariance is conserved during the scattering of tensor-polarized deuterons on vector-polarized deuterons.The formalism is based on Glauber theory and fully considers the spin dependence of NN elastic scattering amplitudes and the spin structure of colliding deuterons.Numerical calculations are performed in the laboratory proton energy range T_(p)=0.1–1.2 GeV using the SAID database for spin amplitudes and in the energy region of the SPD NICA experiment corresponding to the invariant mass of the interacting nucleon pairs√S_(NN)=2.5-25GeV–25 GeV,using two phenomenological models of PN elastic scattering.It is found that only one type of the time-reversal non-invariant parity conserving interaction gives a non-zero contribution to the signal in question,which is important for isolating an unknown constant of this interaction from the corresponding data.

关 键 词：time-reversal invariance spin observables deuteron-deuteron scattering 

分 类 号：O57[理学—粒子物理与原子核物理]