Vector meson-baryon interaction to study dynamical generation of resonances

2011 ◽  
Author(s):  
K. P. Khemchandani ◽  
A. Hosaka ◽  
H. Kaneko ◽  
H. Nagahiro ◽  
Atsushi Hosaka ◽  
...  
Keyword(s):  
Vector Meson ◽  
Baryon Interaction ◽  
Dynamical Generation

BARYON–BARYON INTERACTION IN THE EXTENDED CHIRAL SU(3) QUARK MODEL

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2413-2416 ◽  
Author(s):  
L. R. DAI ◽  
H. ZHANG ◽  
Y. FU ◽  
Z. Y. ZHANG ◽  
Y. W. YU
Keyword(s):  
Vector Meson ◽  
Quark Model ◽  
Short Range ◽  
Meson Exchange ◽  
Group Method ◽  
Short Range Interaction ◽  
Range Interaction ◽  
Baryon Interaction ◽  
The One ◽  
Vector Meson Exchange

The hyperon-nucleon scattering processes and some dibaryon states are studied both in the chiral SU(3) quark model and in the extended chiral SU(3) quark model by solving the resonating group method (RGM) equation. We find that the short-range interaction could be described either by the one-gluon exchange or by the vector meson exchange for baryon-baryon system.

scholarly journals CHIRAL UNITARY APPROACH TO HADRON SPECTROSCOPY

2003 ◽  
Vol 18 (03) ◽  
pp. 387-396 ◽  
Author(s):  
E. Oset ◽  
T. Inoue ◽  
M. J. Vicente Vacas ◽  
A. Ramos ◽  
C. Bennhold
Keyword(s):  
Complex Plane ◽  
Final States ◽  
S Wave ◽  
Baryon Interaction ◽  
Hadron Spectroscopy ◽  
Dynamical Generation ◽  
Coupled Channels ◽  
Unitary Approach ◽  
Chiral Unitary Approach ◽  
Chiral Lagrangian

The s-wave meson-baryon interaction in the S = -1, S = 0 and S = -2 sectors is studied by means of coupled channels, using the lowest-order chiral Lagrangian and the N/D method or equivalently the Bethe-Salpeter equation to implement unitarity. This chiral approach leads to the dynamical generation of the Λ(1405), Λ(1670) and Σ(1620) states for S = -1, the N*(1535) for S = 0 and the Ξ(1620) for S = -2. We look for poles in the complex plane and extract the couplings of the resonances to the different final states. This allows identifying the Λ(1405) and the Λ(1670) resonances with [Formula: see text] and K Ξ quasibound states, respectively. Our results are found to be incompatible with the measured properties of the Ξ(1690) resonance, thus ruling this state out as the remaining member of this octet of dynamically generated resonances. We therefore assign 1/2- for the spin and parity of the Ξ(1620) resonance as the S = -2 member of the lowest-lying 1/2- octet.

Vector Meson Production in Semi‐Inclusive π ‐ p Interactions

1974 ◽  
Author(s):  
A. Levy ◽  
D. Brick ◽  
M. Hodous ◽  
R. Hulsizer ◽  
V. Kistiakowsky ◽  
...  
Keyword(s):  
Vector Meson ◽  
Meson Production ◽  
Vector Meson Production

scholarly journals Exclusive heavy vector meson electroproduction to NLO in collinear factorisation

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
C. A. Flett ◽  
J. A. Gracey ◽  
S. P. Jones ◽  
T. Teubner
Keyword(s):  
Phase Space ◽  
Vector Meson ◽  
Heavy Quarkonia ◽  
Diffractive Scattering ◽  
Meson Electroproduction

Abstract We compute the exclusive electroproduction, γ*p → Vp, of heavy quarkonia V to NLO in the collinear factorisation scheme, which has been formally proven for this process. The inclusion of an off-shell virtuality Q2 carried by the photon extends the photoproduction phase space of the exclusive heavy quarkonia observable to electroproduction kinematics. This process is relevant for diffractive scattering at HERA and the upcoming EIC, as well as at the proposed LHeC and FCC.

scholarly journals DYNAMICAL SYMMETRY BREAKING IN A MINIMAL 3-3-1 MODEL

2012 ◽  
Vol 27 (26) ◽  
pp. 1250156 ◽  
Author(s):  
A. DOFF ◽  
A. A. NATALE
Keyword(s):  
Gauge Symmetry ◽  
Symmetry Breaking ◽  
Dynamical Symmetry ◽  
Mass Scale ◽  
Coupling Constant ◽  
Walking Behavior ◽  
Dynamical Symmetry Breaking ◽  
Dynamical Generation ◽  
Breaking Scale

The gauge symmetry breaking in some versions of 3-3-1 models can be implemented dynamically because at the scale of a few TeVs the U(1)X coupling constant becomes strong. In this work, we consider the dynamical symmetry breaking in a minimal SU(3) TC × SU(3)L × U(1)X model, where we propose a new scheme to cancel the chiral anomalies, including two-index symmetric (6) technifermions, which incorporates naturally the walking behavior in the Technicolor (TC) sector. The composite scalar content of the model is minimal and all the symmetry breaking is implemented by a multiplet of technifermions. The choice of TC representations not only provides the anomaly cancelation with a walking behavior, but is crucial to promote the model's full dynamical symmetry breaking. We consider the dynamical generation of technigluon masses and, depending on the 3-3-1 symmetry breaking scale (μ331), we verify that the technigluon mass is strongly linked to the Z′ mass scale, for instance, if μ331 = 1 TeV , we have MZ′ > 1 TeV only if M TG < 350 GeV .

scholarly journals Dynamical generation of Floquet Majorana flat bands in s-wave superconductors

2015 ◽  
Vol 110 (1) ◽  
pp. 17004 ◽  
Author(s):  
A. Poudel ◽  
G. Ortiz ◽  
L. Viola
Keyword(s):  
S Wave ◽  
Flat Bands ◽  
Dynamical Generation
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