Fitxers
Tipus de document
ArticleVersió
Versió publicadaData de publicació
Llicència de publicació
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/185719
Precise measurements of the properties of the B 1(5721)0 ,+ and B {2/*}(5747)0,+ states and observation of B + ,0 π - ,+ mass structures
Títol de la revista
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
Invariant mass distributions of B+π − and B0π + combinations are investigated in order to study excited B mesons. The analysis is based on a data sample corresponding to 3.0 fb−1 of pp collision data, recorded by the LHCb detector at centre-of-mass energies of 7 and 8 TeV. Precise measurements of the masses and widths of the B1(5721)0,+ and B∗ 2 (5747)0,+ states are reported. Clear enhancements, particularly prominent at high pion transverse momentum, are seen over background in the mass range 5850-6000 MeV in both B+π − and B0π + combinations. The structures are consistent with the presence of four excited B mesons, labelled BJ (5840)0,+ and BJ (5960)0,+, whose masses and widths are obtained under different hypotheses for their quantum numbers.
Matèries (anglès)
Citació
Citació
BADALOV, A., et al. Precise measurements of the properties of the B 1(5721)0 ,+ and B {2/*}(5747)0,+ states and observation of B + ,0 π - ,+ mass structures. Journal of High Energy Physics. 2015. Vol. 2015, num. 24, pags. 1-30. ISSN 1126-6708. [consulted: 19 of August of 2026]. Available at: https://hdl.handle.net/2445/185719