Masses and Decays of Charmed and Bottom Baryons

1997 ◽  
Vol 12 (24) ◽  
pp. 1791-1802 ◽  
Author(s):  
Fayyazuddin ◽  
Riazuddin
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Hadronic Decays ◽  
Present Experimental Data ◽  
Heavy Baryons ◽  
Nonrelativistic Quark Model ◽  
Decay Widths ◽  
The Masses

Using SU(3) and the nonrelativistic quark model, the masses and the strong hadronic decays of heavy baryons are discussed. A number of results for the decay widths are obtained using the present experimental data as input.

scholarly journals HEAVY DIQUARK SYMMETRY CONSTRAINTS FOR STRONG DECAYS

2012 ◽  
Vol 27 (27) ◽  
pp. 1250153 ◽  
Author(s):  
B. EAKINS ◽  
W. ROBERTS
Keyword(s):  
Heavy Quark ◽  
Quark Model ◽  
Strange Quark ◽  
Mass Spectra ◽  
Heavy Baryons ◽  
Nonrelativistic Quark Model ◽  
Decay Widths ◽  
Symmetry Constraints

The heavy diquark symmetry (HDS) of doubly heavy baryons (DHBs) provides new insights into the spectroscopy of these hadrons. We derive the consequences of this symmetry for the mass spectra and the decay widths of DHBs. We compare these symmetry constraints to results from a nonrelativistic quark model for the mass spectra and results from the 3P0 model for strong decays. The quark model we implement was not constructed with these symmetries and contains interactions which explicitly break HDS. Nevertheless these symmetries emerge. We argue that the 3P0 model and any other model for strong transitions which employs a spectator assumption explicitly respects HDS. We also explore the possibility of treating the strange quark as a heavy quark and apply these ideas to Ξ, Ξc and Ξb baryons.

scholarly journals MODEL-INDEPENDENT ESTIMATES FOR THE ABELIAN Z′ BOSON AT MODERN HADRON COLLIDERS

2011 ◽  
Vol 26 (23) ◽  
pp. 4083-4100 ◽  
Author(s):  
ALEXEY GULOV ◽  
ANDREY KOZHUSHKO
Keyword(s):  
Experimental Data ◽  
Z Boson ◽  
Hadron Colliders ◽  
Present Experimental Data ◽  
Decay Widths ◽  
Model Independent

The model-independent constraints on the Abelian Z′ couplings from the LEP data are applied to estimate the Z′ production in experiments at the Tevatron and LHC. The Z′ total and partial decay widths are analyzed. The results are compared with model-dependent predictions and present experimental data from the Tevatron. If we assume the 1–2σ hints from the LEP data to be a signal of the Abelian Z′ boson, then the Tevatron data constrain the Z′ mass between 400 GeV and 1.2 TeV.

scholarly journals SYMMETRIES AND SYSTEMATICS OF DOUBLY HEAVY HADRONS

2012 ◽  
Vol 27 (08) ◽  
pp. 1250039 ◽  
Author(s):  
B. EAKINS ◽  
W. ROBERTS
Keyword(s):  
Experimental Data ◽  
Excitation Energy ◽  
Heavy Quark ◽  
Quark Model ◽  
Strange Quark ◽  
Heavy Meson ◽  
Heavy Quarks ◽  
Heavy Mesons ◽  
Heavy Baryons

We discuss the extension of the superflavor symmetry of doubly heavy baryons to states which contain an excited heavy diquark and we examine some of the consequences of this symmetry for the spectra of doubly heavy baryons and heavy mesons. We explore the ramifications of a proposed symmetry that relates heavy diquarks to doubly heavy mesons. We present a method for determining how the excitation energy of a system containing two heavy quarks will scale as one changes the strength of the interactions and the reduced mass of the system. We use this to derive consequences of the heavy diquark-doubly heavy meson symmetry. We compare these consequences to the results of a quark model as well as the experimental data for doubly and singly heavy mesons. We also discuss the possibility of treating the strange quark as a heavy quark and apply the ideas developed here to strange hadrons.

scholarly journals Mass spectra and decays of ground and orbitally excited cb̄ states in nonrelativistic quark model

2017 ◽  
Vol 32 (04) ◽  
pp. 1750021 ◽  
Author(s):  
Antony Prakash Monteiro ◽  
Manjunath Bhat ◽  
K. B. Vijaya Kumar
Keyword(s):  
Quark Model ◽  
Mass Spectra ◽  
Radiative Decay ◽  
Weak Decay ◽  
Exchange Potential ◽  
Complete Spectrum ◽  
Confinement Potential ◽  
Gluon Exchange ◽  
Nonrelativistic Quark Model ◽  
Decay Widths

The complete spectrum of [Formula: see text] states is obtained in a phenomenological nonrelativistic quark model (NRQM), which consists of a confinement potential and one gluon exchange potential (OGEP) as effective quark–antiquark potential. We make predictions for the radiative decay (E1 and M1) widths and weak decay widths of [Formula: see text] states in the framework of NRQM formalism.

scholarly journals d∗(2380) Resonance in a Chiral SU(3) Constituent Quark Model

2018 ◽  
Vol 46 ◽  
pp. 1860034
Author(s):  
Yubing Dong ◽  
Pengnian Shen ◽  
Fei Huang ◽  
Zongye Zhang
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Charge Distribution ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Total Width ◽  
Compact Structure ◽  
Decay Modes ◽  
Decay Widths

Recent studies on the newly observed resonance [Formula: see text] with a compact structure in a chiral SU(3) constituent quark model are briefly reported. the overall properties, including the mass, the partial decay widths in various decay modes, and the total width, comparing with the experimental data, show that a compact hexaquark dominated structure might be a reasonable interpretation for this state. Moreover, the charge distribution of [Formula: see text] is also discussed.

Electromagnetic properties of nonstrange Baryons in a nonrelativistic quark model

2017 ◽  
Vol 26 (07) ◽  
pp. 1750049 ◽  
Author(s):  
Zahra Ghalenovi ◽  
Masoumeh Moazzen
Keyword(s):  
Quark Model ◽  
Radiative Decay ◽  
Magnetic Moments ◽  
Theoretical Models ◽  
Branching Ratios ◽  
Electromagnetic Properties ◽  
Nonrelativistic Quark Model ◽  
Decay Widths ◽  
Helicity Amplitudes ◽  
Hyperspherical Approach

Masses and magnetic moments of [Formula: see text] and [Formula: see text] resonances are calculated employing the hyperspherical approach. We extend our scheme to obtain the helicity amplitudes and transition magnetic moments of the [Formula: see text] process. We also compute the radiative decay widths and branching ratios of [Formula: see text] baryons. A comparison of our results with the predictions obtained in recent theoretical models is also presented.

RADIATIVE DECAY OF LIGHT AND HEAVY MESONS IN AN INDEPENDENT QUARK MODEL

2001 ◽  
Vol 16 (27) ◽  
pp. 1785-1794 ◽  
Author(s):  
HAKAN ÇIFTCI ◽  
HÜSEYIN KORU
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Ground State ◽  
Radiative Decay ◽  
Potential Model ◽  
Magnetic Moments ◽  
Heavy Mesons ◽  
Decay Widths ◽  
Relativistic Potential

In this paper we have calculated transition magnetic moments and radiative decay widths of light and heavy mesons using a relativistic potential model of independent quarks with its parameters determined from a fit to the mass of ground state mesons in the strange, charm and bottom flavor sectors. The results are in agreement with the experimental data.

scholarly journals HYBRID STATES FROM CONSTITUENT GLUE MODEL

2008 ◽  
Vol 23 (32) ◽  
pp. 5229-5250 ◽  
Author(s):  
FARIDA IDDIR ◽  
LAHOUARI SEMLALA
Keyword(s):  
Quark Model ◽  
Hybrid Meson ◽  
Hybrid Mesons ◽  
Decay Widths ◽  
The Masses

The hybrid meson is one of the most interesting new hadron species beyond the naive quark model. It acquire great attention both from the theoretical and experimental efforts. Many good candidates have been claimed to be observed, but there is no absolute confirmation about the existence of hybrid mesons. In the present work we propose new calculations of the masses and decay widths of the hybrid mesons in the context of constituent gluon model.

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