dorsal/arxiv
View SchemaNo-Lose `Theorem' for Parity Violating Nucleon-Nucleon Scattering Experiments
| Authors | T. Goldman |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9304020 |
| URL | https://arxiv.org/abs/nucl-th/9304020 |
Abstract
A purely left-chiral model of the weak interactions is used to show that the total parity-violating asymmetry in quark-quark scattering must grow with increasing energy. In the absence of other new physics, non-observation of a large asymmetry can therefore be used to infer an upper bound on the mass scale for new right-chiral weak vector bosons. Applying this idea to actual nucleon-nucleon scattering requires more involved calculations, as the dominant contribution appears to come from a component of diquark-quark scattering related to, but not identical to, wavefunction-mixing. Earlier criticism of this model by Simonius and Unger is refuted and a new calculation is proposed as an additional check on the result. Finally, we argue that the so-called `spin crisis' does not affect our conclusions. (Talk given at the BNL workshop on future directions in particle and nuclear physics at multi-GeV hadron beam facilities, March 4--6, 1993.)
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"abstract": "A purely left-chiral model of the weak interactions is used to show that the\ntotal parity-violating asymmetry in quark-quark scattering must grow with\nincreasing energy. In the absence of other new physics, non-observation of a\nlarge asymmetry can therefore be used to infer an upper bound on the mass scale\nfor new right-chiral weak vector bosons. Applying this idea to actual\nnucleon-nucleon scattering requires more involved calculations, as the dominant\ncontribution appears to come from a component of diquark-quark scattering\nrelated to, but not identical to, wavefunction-mixing. Earlier criticism of\nthis model by Simonius and Unger is refuted and a new calculation is proposed\nas an additional check on the result. Finally, we argue that the so-called\n`spin crisis\u0027 does not affect our conclusions. (Talk given at the BNL workshop\non future directions in particle and nuclear physics at multi-GeV hadron beam\nfacilities, March 4--6, 1993.)",
"arxiv_id": "nucl-th/9304020",
"authors": [
"T. Goldman"
],
"categories": [
"nucl-th",
"hep-ph"
],
"title": "No-Lose `Theorem\u0027 for Parity Violating Nucleon-Nucleon Scattering Experiments",
"url": "https://arxiv.org/abs/nucl-th/9304020"
},
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