Dispersion relation formalism for the two-photon exchange correction to elastic muon-proton scattering: elastic intermediate state
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arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2018
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| _version_ | 1866914987387125760 |
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| author | Tomalak, Oleksandr Vanderhaeghen, Marc |
| author_facet | Tomalak, Oleksandr Vanderhaeghen, Marc |
| contents | We evaluate the two-photon exchange correction to the unpolarized cross section in the elastic muon-proton scattering within dispersion relations. One of the six independent invariant amplitudes requires a subtraction. We fix the subtraction function to the model estimate of the full two-photon exchange at one of three MUSE beam energies and make a prediction for the two other energies. Additionally, we present single and double polarization observables accounting for the lepton mass. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1803_05349 |
| institution | arXiv |
| publishDate | 2018 |
| record_format | arxiv |
| spellingShingle | Dispersion relation formalism for the two-photon exchange correction to elastic muon-proton scattering: elastic intermediate state Tomalak, Oleksandr Vanderhaeghen, Marc High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory We evaluate the two-photon exchange correction to the unpolarized cross section in the elastic muon-proton scattering within dispersion relations. One of the six independent invariant amplitudes requires a subtraction. We fix the subtraction function to the model estimate of the full two-photon exchange at one of three MUSE beam energies and make a prediction for the two other energies. Additionally, we present single and double polarization observables accounting for the lepton mass. |
| title | Dispersion relation formalism for the two-photon exchange correction to elastic muon-proton scattering: elastic intermediate state |
| topic | High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/1803.05349 |