Gericke, M. T. W. (2012) Hadronic parity violation and neutron capture reactions. Il nuovo cimento C, 35 (4). pp. 52-56. ISSN 1826-9885
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Abstract
The hadronic weak interaction remains one of the most poorly understood sectors of the Standard Model; for obvious reasons. On the one hand, the initial and final states involve strongly bound systems of particles, for which the theoretical description (e.g. QCD) is insufficient itself and all of the current alternative or hybrid approaches are phenomenological and therefore depend on experimental input. On the other hand, experimental tests are notoriously difficult because the weak interaction observables are suppressed by the strong interaction and very high statistics measurements are needed to reach a meaningful accuracy, which in turn requires tight control of systematic uncertainties. All of this is true for both strangeness-conserving (ΔS = 0) and strangeness-changing (ΔS = 1) nonleptonic interactions. In the former category, new high intensity neutron facilities and the experiments that are proposed or are in preparation there promise sensitivities that could finally see non-zero parity violating (PV) effects in systems that have a theoretically clean interpretation. This paper provides a brief description of the physics issues and various models and introduces a few experimental efforts that are currently underway.
| Item Type: | Article |
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| Uncontrolled Keywords: | Charge conjugation, parity, time reversal, and other discrete symmetries ; Polarization phenomena in reactions ; Nucleon-nucleon interactions (including antinucleons, deuterons, etc.) ; Radiative capture |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 21 Apr 2020 18:15 |
| Last Modified: | 21 Apr 2020 18:15 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/17883 |
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