Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session D09: Meson Electro- and Photo-production
3:30 PM–5:18 PM,
Saturday, April 13, 2019
Sheraton
Room: Governor's Square 11
Sponsoring
Units:
DNP GHP
Chair: Latifa Elouadrhiri, Jefferson Lab
Abstract: D09.00001 : A Search for the LHCb Pentaquark in Hall C at Jefferson Lab*
3:30 PM–3:42 PM
View Presentation Abstract
Presenter:
Burcu Duran
(Temple University)
Author:
Burcu Duran
(Temple University)
Collaboration:
The E12-16-007 collaboration
The Jefferson Lab experiment E12-16-007 will measure the elastic J/ψ photo-production cross section as a function of proton momentum transfer variable t and photon energy Eγ in the region of the recently discovered LHCb charmed pentaquark Pc(4380) and Pc(4450) resonances. The experiment will be performed using a bremsstrahlung beam generated by a 10.6 GeV incident electron beam traversing a copper radiator upstream of a hydrogen target in Hall C. The two high momentum spectrometers of Hall C, HMS and SHMS will detect the e+e- di-lepton J/ψ decay pair in coincidence. In combination with the high incident photon flux, the optimized spectrometer settings provide the preferred kinematics where the s-channel pentaquark signal, if it exists, should strongly dominate over that of the regular t-channel J/ψ production. I will discuss the very preliminary results that will either confirm or refute the resonance nature of the LHCb pentaquark Pc(4450).
*This work is supported by the Department of Energy through grant DE-FG02-94ER4084
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