Viviani, M. and Baroni, A. and Girlanda, L. and Schiavilla, R. (2012) The parity-violating asymmetry in the ${}^{3}He{}^{3}H$ reaction. Il nuovo cimento C, 35 C (4). pp. 47-51. ISSN 1826-9885
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Abstract
The longitudinal asymmetry An3He z in the 3He(n, p) 3H reaction is an observable directly related to parity-violating (PV) components in the nucleonnucleon (NN) interaction. Here we study An3He z using a PV NN potential derived from an effective field theory framework at next-to-next-to-leading order, including one- and two-pion exchanges, contact interactions and relativistic corrections. This potential depends on six low-energy constants. Some of these parameters are constrained to reproduce the existing accurate measurements of the p-p longitudinal asymmetry. Using these constraints we compute An3He z and study the sensitivity of such an observable to the unconstrained parameters.
| Item Type: | Article |
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| Uncontrolled Keywords: | Charge conjugation, parity, time reversal, and other discrete symmetries ; Nucleon-nucleon interactions (including antinucleons, deuterons, etc.) ; Charge-exchange reactions |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 21 Apr 2020 18:14 |
| Last Modified: | 21 Apr 2020 18:14 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/17882 |
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