Baryon-Number Violation by Two Units and the Deuteron Lifetime
| Autor: | Robertus Timmermans, J. de Vries, Bingwei Long, U. van Kolck, F. Oosterhof |
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| Přispěvatelé: | Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), High-Energy Frontier |
| Rok vydání: | 2019 |
| Předmět: |
Quark
Particle physics Nuclear Theory [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th] Physics beyond the Standard Model FOS: Physical sciences General Physics and Astronomy 01 natural sciences 7. Clean energy quark: operator Square (algebra) Nuclear Theory (nucl-th) LIMITS High Energy Physics - Phenomenology (hep-ph) effective field theory 0103 physical sciences Effective field theory TRANSITION OPERATORS 010306 general physics Nuclear Experiment n anti-n: oscillation baryon number: violation Nuclear Physics Physics Oscillation new physics High Energy Physics::Phenomenology deuteron: decay Order (ring theory) NEUTRON-ANTINEUTRON OSCILLATIONS High Energy Physics - Phenomenology Deuterium operator: higher-dimensional [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] High Energy Physics::Experiment Baryon number |
| Zdroj: | Phys.Rev.Lett. Phys.Rev.Lett., 2019, 122 (17), pp.172501. ⟨10.1103/PhysRevLett.122.172501⟩ Physical Review Letters Physical Review Letters, American Physical Society, 2019, 122 (17), pp.172501. ⟨10.1103/PhysRevLett.122.172501⟩ Physical Review Letters, 122(17):172501. AMER PHYSICAL SOC |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/PhysRevLett.122.172501⟩ |
| Popis: | We calculate the lifetime of the deuteron with dimension-nine quark operators that violate baryon number by two units. We construct an effective field theory for $|\Delta B|=2$ interactions that give rise to neutron-antineutron ($n$-$\bar{n}$) oscillations and dinucleon decay within a consistent power counting. We calculate the ratio of the deuteron lifetime to the square of the $n$-$\bar{n}$ oscillation time up to next-to-leading order. Our result, which is analytical and has a quantified uncertainty, is smaller by a factor $\simeq 2.5$ than earlier estimates based on nuclear models, which impacts the indirect bound on he $n$-$\bar{n}$ oscillation time and future experiments. We discuss how combined measurements of $n$-$\bar{n}$ oscillations and deuteron decay can help to identify the sources of baryon-number violation. |
| Databáze: | OpenAIRE |
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