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Article
Possibility of extracting the weak phase 7 from Λb→ Λ0 decays
We explore the possibility of extracting the weak phase γ from pure tree decays Λb→ Λ(ie687_01) in a model independent way. We find the CP violating phase γ can be determined cleanly without any hadronic uncertai...
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Article
Analysis of directCP violation in \(B^- \to D^0 D_s^-, D^0 D^-\) decays
We investigate the possibility of observing direct CP violation in the decay modes \(B^- \to D^0 D_s^- \) and \(D^0 D^-\) within the standard m...
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Article
An analysis of Cabibbo-favored two-body decays of charmed mesons withη orη′ in the final state
We have carried out a study of Cabbibbo-favored two-body decays ofD 0 andD s + involving η and η′ in the final state, ...
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Article
The strong and radiative decays ofD *-mesons
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Article
Flavour-spin symmetry and weak decays of heavy hadrons
Recent developments in the theory of heavy quarks have increased the prospects for the study of non-perturbative QCD in the weak decays of heavy mesons and baryons and for the reliable determination of some of...
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Article
Sum rules for the pseudoscalar BBP couplings
In the ‘tadpole’ type mechanism of Coleman and Glashow, where all the summetry breaking effects are generated through symmetry breaking terms belonging to the same regular representation (octet in the case of ...
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Article
Ground state baryon magnetic moments and nucleon axial vector coupling
Ground-state baryon magnetic moments and nucleon axial vector coupling are calculated usingqcd inspired configuration mixing and relativistic corrections. Unlike earlier attempts, we incorporate a natural mass sc...
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Article
Nonleptonic decay matrix elements in the variable pressure bag model
The consequences of the variable pressure bag model for the nonleptonic decays of hyperons and Ω− are investigated. Though the order of magnitude and the relative sign for the various decay amplitudes are correct...
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Article
Baryon magnetic moments in quark-diquark model
The baryon magnetic moments in quark-diquark model are studied and it is found that the diquark (spin 1 and 0) mixing which may arise as a result of quarkgluon interaction inside a hadron, leads to a good agre...
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Article
Effects of gluon exchange on baryon magnetic moments
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Article
Masses of charmed andb-quark hadrons in quasinuclear coloured quark model
Employing non-relativistic quasinuclear coloured quark model, which provides a unified description of mesons and baryons, masses of charmed andb-quark hadrons are studied. Various mass splittings are estimated, a...
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Article
Symmetry breaking for theBBP-couplings
Using the consistency requirements arising from the Coleman-Glashow null result for ‘tadpole’-type symmetry-breaking, we obtain a simple method of accounting for the SU(3) symmetry-breaking at theBBP-vertex, with...
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Article
Masses of heavy hadrons in quark model
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Article
Quark model predictions on the masses of heavier vector mesons
We use the quark model considerations of Federman, Rubinstein and Talmi and the relation (m ψ/m ϕ)≃(m ϒ/m ψ)≃(m ϒ/m
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Article
Baryon mass relations in the internalSU 6 symmetry
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Article
Magnetic moments of baryons in broken SU(4)
Assuming that the anomalous magnetic moment interaction has the formaT 1 1 +bT 2 ...
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Article
Charm changing weak decays 1/2+ → 3/2+ + 0−/γ in SU(4) and SU(8) w
Weak decay modes (1/2+ → 3/2+ + 0−/γ) of charmed baryons are studied. Relations among the various decay amplitudes are derived in isospin, SU(3), SU(4) and SU(8) w symmetries. S...
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Article
Adjoint representation admixture to weak nonleptonic decays in SU(4) and SU(8)
In order to remove some of the unsatisfactory features of the GIM model, we consider15-admixture in SU(4). ΔC=±ΔS decays remain unaffected. Lee-Sugawara sum-rule is obtained.15-admixture is extended then to63-adm...
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Article
SU (8) mass relations amongJ P=1/2+ and 3/2+ baryons
Mass relations among charmed and uncharmed baryons belonging to20 and20′ multiplets of SU(4) are derived in the framework of SU(8) symmetry, Spin singlet mass breaking interaction is found to give unsatisfactory ...
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Article
Magnetic moments of baryons in higher symmetry schemes including charm
Relations among the magnetic moments of charmed and uncharmed baryons are derived in the framework of SU(4) and SU(8) symmetries. The SU(3) resultμ (Σ o)=−μ(Λ) is not present in SU(4), but is obta...
