RT Journal Article
T1 Observation of pentaquark resonances in Λb → J/ψK−p decays
A1 Adeva Andany, Bernardo
AB LHCb has recently reported the observation of exotic structures in the J/ψp channel, in Λb → J/ψK−p decay, which we discuss here and refer to as charmoniumpentaquarkstates. The data sample corresponds to an integrated luminosity of 3.0 fb−1acquired with the LHCb detector from 7 and 8 TeV pp collisions. An amplitude analysisof the three-body final state reproduces the two-body mass and angular distributions. Toobtain a satisfactory fit of the structures seen in the J/ψp mass spectrum, it is necessaryto include two Breit-Wigner amplitudes that each describe a resonant state. Details aregiven on the significance, and prefered quantum numbers, of these two resonances
PB EDP Sciences
YR 2016
FD 2016-11-04
LK http://hdl.handle.net/10347/16329
UL http://hdl.handle.net/10347/16329
LA eng
NO Adeva, B. (2016). Observation of pentaquark resonances in Λb→J/ψK−pdecays. EPJ Web Of Conferences, 126, 02002. http://dx.doi.org/10.1051/epjconf/201612602002
DS Minerva
RD 4 may 2026