RT Journal Article
T1 Double polarization observables in pentaquark photoproduction
A1 Winney, D.
A1 Fanelli, C.
A1 Pilloni, A.
A1 Blin, A. N. Hiller
A1 Fernández Ramírez, C.
A1 Albaladejo, M.
A1 Mathieu, V.
A1 Mokeev, V. I.
A1 Szczepaniak, A. P.
AB We investigate the properties of the hidden-charm pentaquark-like resonances first observed by the LHCb Collaboration in 2015, by measuring the polarization transfer K L L between the incident photon and the outgoing proton in the exclusive photoproduction of J / ψ near threshold. We present a first estimate of the sensitivity of this observable to the pentaquark photocouplings and hadronic branching ratios, and extend our predictions to the case of the initial-state helicity correlation A L L , using a polarized target. These results serve as a benchmark for the SBS experiment at Jefferson Lab, which proposes to measure for the first time the helicity correlations A L L and K L L in J / ψ exclusive photoproduction, in order to determine the pentaquark photocouplings and branching ratios.
PB APS Physics
SN 2470-0010
YR 2019
FD 2019-08-20
LK https://hdl.handle.net/20.500.14352/12876
UL https://hdl.handle.net/20.500.14352/12876
LA eng
NO U.S. Department of Energy
NO PAPIITDGAPA (UNAM, Mexico)
NO CONACYT (Mexico)
NO DFG/Collaborative Research Center/Cluster of Excellence
DS Docta Complutense
RD 1 sept 2024