f0(S∗): molecule or quark state?

1991 ◽  
Vol 258 (3-4) ◽  
pp. 444-450 ◽  
Author(s):  
D. Morgan ◽  
M.R. Pennington
Keyword(s):  
Quark State

scholarly journals Disentangling two- and four-quark state pictures of the charmed scalar mesons

2005 ◽  
Vol 624 (3-4) ◽  
pp. 217-222 ◽  
Author(s):  
M.E. Bracco ◽  
A. Lozea ◽  
R.D. Matheus ◽  
F.S. Navarra ◽  
M. Nielsen
Keyword(s):  
Scalar Mesons ◽  
Quark State

The role of nine-quark-state in three nucleon systems

1985 ◽  
Vol 321 (3) ◽  
pp. 527-529
Author(s):  
D. V. Anchishkin ◽  
A. P. Kobushkin
Keyword(s):  
Quark State

scholarly journals Heavy-quark-state production inA-Acollisions atspp=200GeV

2014 ◽  
Vol 89 (2) ◽  
Author(s):  
Leonard S. Kisslinger ◽  
Ming X. Liu ◽  
Patrick McGaughey
Keyword(s):  
Heavy Quark ◽  
Quark State ◽  
State Production

The configuration mixing of four-quark state and hybrid state

2001 ◽  
Vol 692 (1-2) ◽  
pp. 348-353 ◽  
Author(s):  
H. Noya ◽  
H. Nakamura
Keyword(s):  
Hybrid State ◽  
Quark State ◽  
Configuration Mixing

scholarly journals Y(4260) as a four-quark state

2020 ◽  
Vol 101 (9) ◽  
Author(s):  
S. Dubnička ◽  
A. Z. Dubničková ◽  
A. Issadykov ◽  
M. A. Ivanov ◽  
A. Liptaj
Keyword(s):  
Quark State

scholarly journals Holographic penta and hepta quark state in confining gauge theories

2010 ◽  
Vol 2010 (8) ◽  
Author(s):  
Kazuo Ghoroku ◽  
Akihiro Nakamura ◽  
Tomoki Taminato ◽  
Fumihiko Toyoda
Keyword(s):  
Gauge Theories ◽  
Quark State ◽  
Confining Gauge Theories

scholarly journals X(3872), IG(JPC) = 0+(1++), as the χc1(2P) charmonium

2015 ◽  
Vol 30 (33) ◽  
pp. 1550181 ◽  
Author(s):  
N. N. Achasov ◽  
E. V. Rogozina
Keyword(s):  
Potential Model ◽  
Branching Ratio ◽  
The Self ◽  
Coupling Constant ◽  
Self Energy ◽  
Quark State ◽  
Intermediate States ◽  
Experimental Researches

Contrary to almost standard opinion that the [Formula: see text]) resonance is the [Formula: see text] molecule or the [Formula: see text] four-quark state, we discuss the scenario where the [Formula: see text] resonance is the [Formula: see text] charmonium which “sits on” the [Formula: see text] threshold. We explain the shift of the mass of the [Formula: see text] resonance with respect to the prediction of a potential model for the mass of the [Formula: see text] charmonium by the contribution of the virtual [Formula: see text] intermediate states into the self energy of the [Formula: see text] resonance. This allows us to estimate the coupling constant of the [Formula: see text] resonance with the [Formula: see text] channel, the branching ratio of the [Formula: see text] decay, and the branching ratio of the [Formula: see text] decay into all non-[Formula: see text] states. We predict a significant number of unknown decays of [Formula: see text] via two gluon: [Formula: see text]. We suggest a physically clear program of experimental researches for verification of our assumption.

scholarly journals Review of QCD, quark–gluon plasma, heavy quark hybrids, and heavy quark state production in p–p and A–A collisions

2016 ◽  
Vol 31 (07) ◽  
pp. 1630010 ◽  
Author(s):  
Leonard S. Kisslinger ◽  
Debasish Das
Keyword(s):  
Heavy Quark ◽  
Quark Gluon Plasma ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Relativistic Heavy Ion Collisions ◽  
Ion Collisions ◽  
Quark State ◽  
Quark Production ◽  
State Production ◽  
Fragmentation Functions

This is a review of the Quantum Chromodynamics Cosmological Phase Transitions, the quark–gluon plasma, the production of heavy quark states via [Formula: see text]–[Formula: see text] collisions and Relativistic Heavy Ion Collisions (RHIC) using the mixed hybrid theory for the [Formula: see text] and [Formula: see text] states; and the possible detection of the quark–gluon plasma via heavy quark production using RHIC. Recent research on fragmentation for the production of [Formula: see text] mesons is reviewed, as is future theoretical and experimental research on the Collins and Sivers fragmentation functions for pions produced in polarized [Formula: see text]–[Formula: see text] collisions.

scholarly journals Nature of the X(5568) — A critical Laplace sum rule analysis at N2LO

2016 ◽  
Vol 31 (17) ◽  
pp. 1650093 ◽  
Author(s):  
R. Albuquerque ◽  
S. Narison ◽  
A. Rabemananjara ◽  
D. Rabetiarivony
Keyword(s):  
Quark Mass ◽  
Continuum Threshold ◽  
Sum Rule ◽  
Heavy Quark Mass ◽  
Quark State ◽  
Rule Analysis ◽  
The One ◽  
The Masses ◽  
Exotic Hadrons ◽  
Spectral Sum Rules

We scrutinize recent QCD spectral sum rules (QSSR) results to lowest order (LO) predicting the masses of the [Formula: see text] molecule and [Formula: see text] four-quark states. We improve these results by adding NLO and N2LO corrections to the PT contributions giving a more precise meaning on the [Formula: see text]-quark mass definition used in the analysis. We extract our optimal predictions using Laplace sum rule (LSR) within the standard stability criteria versus the changes of the external free parameters ([Formula: see text]-sum rule variable, [Formula: see text] continuum threshold and subtraction constant [Formula: see text]). The smallness of the higher order PT corrections justifies (a posteriori) the LO order results ⊕ the uses of the ambiguous heavy quark mass to that order. However, our predicted spectra in the range [Formula: see text] MeV, summarized in Table 7, for exotic hadrons built with four different flavors [Formula: see text], do not support some previous interpretations of the D0 candidate,1 [Formula: see text], as a pure molecule or a four-quark state. If experimentally confirmed, it could result from their mixing with an angle: [Formula: see text]. One can also scan the region [Formula: see text] MeV (where the [Formula: see text] might be a good candidate) and the one [Formula: see text] MeV for detecting these [Formula: see text] and [Formula: see text] unmixed exotic hadrons (if any) via, eventually, their radiative or [Formula: see text][Formula: see text]+[Formula: see text]hadrons decays.

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