Search for CP violation and observation of P violation in Ab0 --> pn-n+n- decays

  • Authors
  • Aaij R, Abellán C, Ackernley T, Comerma A, Zonneveld JB, Zuccheli S
  • UPF authors
  • COMERMA MONTELLS, ALBERT;
  • Type
  • Scholarly articles
  • Journal títle
  • Physical Review D - Particles, Fields, Gravitation and Cosmology
  • Publication year
  • 2020
  • Volume
  • 102
  • Number
  • 5
  • Pages
  • 0-0
  • ISSN
  • 1550-7998
  • Publication State
  • Published
  • Abstract
  • A search for CP violation in the ¿b0¿p¿-¿+¿- decay is performed using LHCb data corresponding to an integrated luminosity of 6.6 fb-1 collected in pp collisions at center-of-mass energies of 7, 8 and 13 TeV. The analysis uses both triple product asymmetries and the unbinned energy test method. The highest significances of CP asymmetry are 2.9 standard deviations from triple product asymmetries and 3.0 standard deviations for the energy test method. Once the global p-value is considered, all results are consistent with no CP violation. Parity violation is observed at a significance of 5.5 standard deviations for the triple product asymmetry method and 5.3 standard deviations for the energy test method. The reported deviations are given in regions of phase space.
  • Complete citation
  • Aaij R, Abellán C, Ackernley T, Comerma A, Zonneveld JB, Zuccheli S. Search for CP violation and observation of P violation in Ab0 --> pn-n+n- decays. Physical Review D - Particles, Fields, Gravitation and Cosmology 2020; 102(5).
Bibliometric indicators
  • 4 times cited Scopus
  • 1 times cited WOS
  • Índex Scimago de 1.882 (2015)