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Comprehensive analysis of beta decays within and beyond the Standard Model

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اقرأ أكثر حفظ في قائمتي
  • معلومة اضافية
    • Contributors:
      Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab); Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS); Laboratoire de physique corpusculaire de Caen (LPCC); Université de Caen Normandie (UNICAEN); Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN); Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS); ANR-19-CE31-0012,MORA,Origine de la matière depuis l'étude de la radioactivité béta d'ions piégés polarisés(2019)
    • بيانات النشر:
      HAL CCSD
      Springer
    • الموضوع:
      2021
    • Collection:
      Normandie Université: HAL
    • نبذة مختصرة :
      International audience ; Precision measurements in allowed nuclear beta decays and neutron decay are reviewed and analyzed both within the Standard Model and looking for new physics. The analysis incorporates the most recent experimental and theoretical developments. The results are interpreted in terms of Wilson coefficients describing the effective interactions between leptons and nucleons (or quarks) that are responsible for beta decay. New global fits are performed incorporating a comprehensive list of precision measurements in neutron decay, superallowed 0$^{+}$→ 0$^{+}$ transitions, and other nuclear decays that include, for the first time, data from mirror beta transitions. The results confirm the V-A character of the interaction and translate into updated values for V$_{ud}$ and g$_{A}$ at the 10$^{−4}$ level. We also place new stringent limits on exotic couplings involving left-handed and right-handed neutrinos, which benefit significantly from the inclusion of mirror decays in the analysis.
    • Relation:
      info:eu-repo/semantics/altIdentifier/arxiv/2010.13797; hal-03011057; https://hal.science/hal-03011057; https://hal.science/hal-03011057/document; https://hal.science/hal-03011057/file/Falkowski2021_Article_ComprehensiveAnalysisOfBetaDec.pdf; ARXIV: 2010.13797; INSPIRE: 1826404
    • الرقم المعرف:
      10.1007/JHEP04(2021)126
    • Rights:
      info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.6DEBC2