منابع مشابه
Identifying Exotic Hidden-Charm Pentaquarks.
The LHCb Collaboration at the Large Hadron Collider at CERN discovered two pentaquark states P_{c}(4380) and P_{c}(4450). These two hidden-charm states are interpreted as the loosely bound Σ_{c}(2455)D^{*} and Σ_{c}^{*}(2520)D^{*} molecular states in the boson exchange interaction model, which provides an explanation for why the experimental width of P_{c}(4450) is much narrower than that of P_...
متن کاملTowards Exotic Hidden-Charm Pentaquarks in QCD.
Inspired by P(c)(4380) and P(c)(4450) recently observed by LHCb, a QCD sum rule investigation is performed, by which they can be identified as exotic hidden-charm pentaquarks composed of an anticharmed meson and a charmed baryon. Our results suggest that P(c)(4380) and P(c)(4450) have quantum numbers J(P)=3/2(-) and 5/2(+), respectively. Furthermore, two extra hidden-charm pentaqurks with confi...
متن کامل–1– Pentaquarks
(3100), and for the early unsuccessful attempts to confirm them. The table below lists papers published since then giving results of further unsuccessful searches. There are experiments at high energies and low; in new reactions and old; there are experiments—some by the same groups that claimed the original discoveries—with orders-of-magnitude greater statistics than before; there are experime...
متن کاملSoliton Picture for Pentaquarks
In this talk I report on a thorough comparison between the bound state and rigid rotator approaches to generate baryon states with non–zero strangeness in chiral soliton models. This comparison shows that the scattering amplitude in the bound state approach contains contributions generated by the exchange of the rigid pentaquark excitation, and that the two approaches are consistent with each o...
متن کاملTheoretical Development on Pentaquarks
Quark model is very successful in the classification of hadron states. Any state with quark content other than qq̄, qqq is beyond quark model. But quark model can’t be the whole story. Quantum chromodynamics as the underlying theory of strong interaction allows much richer hadron spectrum such as: glueball, hybrid meson/baryon, multiquark states, hadron molecules etc. In the meson sector, there ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2019
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.99.014035