8,808 research outputs found
Charmed hadron photoproduction at COMPASS
Photoproduction of the charmonium-like state and the charmed
baryon is investigated with an effective Lagrangian
approach and the Regge trajectories applying to the COMPASS experiment.
Combining the experimental data from COMPASS and our theoretical model we
estimate the upper limit of to be
of about 37 MeV. Moreover, the possibility to produce at COMPASS is discussed. It seems one can try to search for this
hadron in the missing mass spectrum since the -channel is dominating for the
photoproduction.Comment: Proceedings of the Second International Symposium on Physics of
Photons (ISPP 15), Lanzhou, China, July 201
The production of neutral resonance with hidden beauty from scattering
We investigate the discovery potential of the predicted neutral hidden beauty
resonance through scattering within an effective
Lagrangian approach. Two reactions and
are studied in this work, with nucleon pole
exchange as the background. It is found that the contributions of the
resonance give clear peak structures in the magnitude of 1
near the threshold of the in the total cross sections. The
numerical results indicate that the center of mass energy 11-11.1 GeV
would be a best energy window for searching the resonance, where
the signal can be easily distinguished from the background. The
COMPASS experiment at CERN's Super Proton Synchrotron (SPS) with pion beam of
280 GeV will be an ideal platform for searching the super-heavy
resonance with hidden beauty, which is hopeful to test the theoretical results
Production of the superheavy baryon in kaon-induced reaction
The production of superheavy baryon in
the process via -channel is
investigated with an effective Lagrangian approach and the isobar model.
Moreover, the -channel with and -channel with nucleon
exchange are also considered, which are regarded as the background for the
production in the reaction. The numerical results indicate it is feasible to
searching for the superheavy via
scattering. These theoretical results not only provide valuable informations to
future experimental exploration of
resonance but enable us to have a better understanding of the exotic baryons.Comment: 6 page
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