scholarly journals New X0,1(2900) -like exotic states in b -baryon decays

2021 ◽  
Vol 104 (3) ◽  
Author(s):  
Yu-Kuo Hsiao ◽  
Yao Yu
Keyword(s):  
Exotic States

scholarly journals Isoscalar mesons and exotic states in light front holographic QCD

2019 ◽  
Vol 99 (11) ◽  
Author(s):  
Liping Zou ◽  
Hans Günter Dosch ◽  
Guy F. de Téramond ◽  
Stanley J. Brodsky
Keyword(s):  
Light Front ◽  
Exotic States ◽  
Holographic Qcd

scholarly journals Exotic states in the S=1 N-pi-K system and low-lying 1/2+ S=-1 resonances

2010 ◽  
Vol 3 ◽  
pp. 07016
Author(s):  
K.P. Khemchandani ◽  
A. Martínez Torres ◽  
E. Oset
Keyword(s):  
Exotic States

THE AFFINE N = 4 YANG–MILLS THEORY

1992 ◽  
Vol 07 (11) ◽  
pp. 2469-2485
Author(s):  
A. C. CADAVID ◽  
R. J. FINKELSTEIN
Keyword(s):  
Mass Spectrum ◽  
Vacuum Expectation ◽  
Vacuum Expectation Value ◽  
Effective Theory ◽  
Affine Algebra ◽  
Linear Mass ◽  
Expectation Value ◽  
Yang Mills ◽  
Exotic States ◽  
Affine Symmetry

An affine field theory may be constructed by gauging an affine algebra. The momentum integrals of the affine N = 4 Yang–Mills theory are ultraviolet finite but diverge because the sum over states is infinite. If the affine symmetry is broken by postulating a nonvanishing vacuum expectation value for that component of the scalar field lying in the L0 direction, then the theory acquires a linear mass spectrum. This broken theory is ultraviolet finite too, but the mass spectrum is unbounded. If it is also postulated that the mass spectrum has an upper bound (say, the Planck mass), then the resulting theory appears to be altogether finite. The influence of the exotic states has been estimated and, according to the proposed scenario, is negligible below energies at which gravitational interactions become important. The final effective theory has the symmetry of a compact Lie algebra augmented by the operator L0.

scholarly journals α-cluster structure and exotic states in a self-consistent model for light nuclei

2006 ◽  
Vol 74 (4) ◽  
Author(s):  
J. A. Maruhn ◽  
Masaaki Kimura ◽  
S. Schramm ◽  
P.-G. Reinhard ◽  
H. Horiuchi ◽  
...  
Keyword(s):  
Cluster Structure ◽  
Light Nuclei ◽  
Exotic States ◽  
Consistent Model ◽  
Self Consistent

Search for Exotic States in 13C

JETP Letters ◽  
2021 ◽  
Author(s):  
A. S. Demyanova ◽  
A. N. Danilov ◽  
S. V. Dmitriev ◽  
A. A. Ogloblin ◽  
V. I. Starastsin ◽  
...  
Keyword(s):  
Exotic States

scholarly journals XYZ states as hadronic molecules

2019 ◽  
Vol 202 ◽  
pp. 01002
Author(s):  
A.V. Nefediev
Keyword(s):  
Heavy Quarks ◽  
Exotic States ◽  
The Past ◽  
Quark Models ◽  
Molecule Model

In the past decade, a lot of new hadrons containing heavy quarks were discovered which do not fit into the scheme provided by the traditional quark models. Such states are known as the XYZ states and they are conventionally referred to as exotic ones. At present, there is no consensus on their nature, and different models and approaches have been suggested to explain their unusual properties. The talk is devoted to a brief overview of the molecule model for such exotic states.

scholarly journals Recent results of quarkonium and heavy flavour physics at ATLAS

2019 ◽  
Vol 199 ◽  
pp. 04004
Author(s):  
Weimin Song
Keyword(s):  
Heavy Quark ◽  
Atlas Detector ◽  
Final States ◽  
Exotic States ◽  
Decay Properties ◽  
Muon Pairs ◽  
Beauty Production ◽  
Flavour Physics

Heavy quark spectroscopy and exotic states are studied with the ATLAS detector, mainly through final states containing muon pairs from J/ψ decays. This proceedings will summarise recent results from ATLAS on these topics, including production of quarkonium and heavy flavour, searches for exotic states and measurements of decay properties in open beauty production.

scholarly journals Topological transitions in an oscillatory driven liquid crystal cell

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Marcel G. Clerc ◽  
Michał Kowalczyk ◽  
Valeska Zambra
Keyword(s):  
Liquid Crystal ◽  
Topological States Of Matter ◽  
Low Frequency ◽  
Vortex State ◽  
Liquid Crystal Cell ◽  
Topological Transition ◽  
Exotic States ◽  
Crystal Cell ◽  
Topological States ◽  
Topological Transitions

Abstract Matter under different equilibrium conditions of pressure and temperature exhibits different states such as solid, liquid, gas, and plasma. Exotic states of matter, such as Bose–Einstein condensates, superfluidity, chiral magnets, superconductivity, and liquid crystalline blue phases are observed in thermodynamic equilibrium. Rather than being a result of an aggregation of matter, their emergence is due to a change of a topological state of the system. These topological states can persist out of thermodynamics equilibrium. Here we investigate topological states of matter in a system with injection and dissipation of energy by means of oscillatory forcing. In an experiment involving a liquid crystal cell under the influence of a low-frequency oscillatory electric field, we observe a transition from a non-vortex state to a state in which vortices persist, topological transition. Depending on the period and the type of the forcing, the vortices self-organise, forming square lattices, glassy states, and disordered vortex structures. The bifurcation diagram is characterised experimentally. A continuous topological transition is observed for the sawtooth and square forcings. The scenario changes dramatically for sinusoidal forcing where the topological transition is discontinuous, which is accompanied by serial transitions between square and glassy vortex lattices. Based on a stochastic amplitude equation, we recognise the origin of the transition as the balance between stochastic creation and deterministic annihilation of vortices. Numerical simulations show topological transitions and the emergence of square vortex lattice. Our results show that the matter maintained out of equilibrium by means of the temporal modulation of parameters can exhibit exotic states.

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