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High Energy Physics - Phenomenology

Title: Most general neutron decay correlations: Standard Model recoil and radiative corrections

Abstract: To continue from our previous work \textit{Phys.Rev.D\textbf{109}(2024),073007}, we derive the full Standard Model prediction of the most general free neutron differential decay rate with all massive particles (neutron, proton and electron) polarized, including the $\mathcal{O}(1/m_N)$ recoil corrections and $\mathcal{O}(\alpha/\pi)$ radiative corrections. For the latter we adopt the newly-developed pseudo-neutrino formalism which is compatible to realistic experimental setups, in which neutrinos and photons are not detected. We also provide readily-executable \textit{Mathematica} notebooks to evaluate these corrections.
Comments: 29 pages, 4 tables
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex); High Energy Physics - Lattice (hep-lat); Nuclear Experiment (nucl-ex); Nuclear Theory (nucl-th)
Cite as: arXiv:2404.17200 [hep-ph]
  (or arXiv:2404.17200v1 [hep-ph] for this version)

Submission history

From: Chien Yeah Seng [view email]
[v1] Fri, 26 Apr 2024 07:18:49 GMT (139kb)

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