Progress and simulations for intranuclear neutron-antineutron transformations in ${}^{40}_{18} Ar$
| Autor: | Barrow, Joshua L., Golubeva, Elena S., Paryev, Eduard, Richard, Jean-Marc |
|---|---|
| Přispěvatelé: | Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
nucleon: decay
Nuclear Theory [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th] FOS: Physical sciences anti-n: annihilation baryogenesis High Energy Physics - Experiment Phenomenological aspects of field theory Nuclear Theory (nucl-th) High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology (hep-ph) neutrino: atmosphere [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] fission Nuclear Experiment n anti-n: oscillation lepton number: violation baryon number: violation lifetime argon: nucleus neutrino: background suppression time projection chamber: liquid argon deep underground detector general methods cascade High Energy Physics - Phenomenology n: beam correlation [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] numerical calculations: Monte Carlo |
| Zdroj: | Phys.Rev.D Phys.Rev.D, 2020, 101 (3), pp.036008. ⟨10.1103/PhysRevD.101.036008⟩ Physical Review D Physical Review D, American Physical Society, 2020, 101 (3), pp.036008. ⟨10.1103/PhysRevD.101.036008⟩ |
| ISSN: | 1550-7998 1550-2368 |
| DOI: | 10.1103/PhysRevD.101.036008⟩ |
| Popis: | With the imminent construction of the Deep Underground Neutrino Experiment (DUNE) and Hyper-Kamiokande, nucleon decay searches as a means to constrain beyond Standard Model (BSM) extensions are once again at the forefront of fundamental physics. Abundant neutrons within these large experimental volumes, along with future high-intensity neutron beams such as the European Spallation Source, offer a powerful, high-precision portal onto this physics through searches for $\mathcal{B}$ and $\mathcal{B}-\mathcal{L}$ violating processes such as neutron--antineutron transformations ($n\rightarrow\bar{n}$), a key prediction of compelling theories of baryogenesis. With this in mind, this paper discusses a novel and self-consistent intranuclear simulation of this process within ${}^{40}_{18} Ar$, which plays the role of both detector and target within DUNE's gigantic liquid argon time projection chambers. An accurate and independent simulation of the resulting intranuclear annihilation respecting important physical correlations and cascade dynamics for this large nucleus is necessary to understand the viability of such rare searches when contrasted against background sources such as atmospheric neutrinos. Recent theoretical improvements to our model, including the first calculation of ${}^{40}_{18} Ar$'s $\bar{n}$-intranuclear suppression factor, and Monte Carlo simulation comparisons to another publicly available $n\rightarrow\bar{n}$ generator within GENIE, are also discussed. Comment: 19 pages, 20 figures |
| Databáze: | OpenAIRE |
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