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Mass spectra and regge trajectories of Λ_c^+,∑_c^0,Ξ_c^0 and Ω_c^0 baryons

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Chinese Physics C 2016年第12期40卷 10-21页

作者： Zalak Shah Kaushal Thakkar Ajay Kumar Rai P. C. Vinodkumar Department of Applied Physics Sardar Vallabhbhai National Institute of Technology Surat Gujarat 395007 India Department of Applied Sciences &: Humanities GIDC Degree Engineering college Abrama Navsari 396406 India Department of physics Sardar Patel University V.V. Nagar Anand 388120 India

We calculate the mass spectra of the singly charmed baryons （∧＋ c, ∑0 c,[I]0c and Ω0 c） using the hypercentral constituent quark model （hCQM）. The hyper color Coulomb plus linear potential is used to calculate the masses ofpositive （up to JP = 7＋/2 ）9 and negative （up to JP = 9-/2）parity excited states. The spin-spin, spin-orbital and tensorinteraction terms are-also incorporated for mass spectra. We have compared our results with other theoretical and lattice QCD predictions for each baryon. Moreover, the known experimental results are also reasonably close to our predicted masses. By using the radial and orbital excitation, we construct regge trajectories for the baryons in the （n,M2） plane and find their slopes and intercepts. Other properties of these baryons, like magnetic moments, radiative transitions and radiative decay widths, are also calculated successfully.

关键词： baryons potential model regge trajectories

Spectroscopy of the ?_(ccb) baryon in the hypercentral constituent quark model

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Chinese Physics C 2018年第5期42卷 25-29页

作者： Zalak Shah Ajay Kumar Rai Department of Applied Physics Sardar Vallabhbhai National Institute of Technology

We extract the mass spectrum of the triply heavy baryon ?ccbusing the hypercentral constituent quark model. The first order correction is also added to the potential term of the Hamiltonian. The radial and orbital exc... 详细信息

关键词： baryons potential model regge trajectories

Spectroscopy and decay properties of charmonium

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Chinese Physics C 2018年第8期42卷 19-33页

作者： Virendrasinh Kher Ajay Kumar Rai Applied Physics Department PolytechnicThe M.S.University of Baroda Department of Applied Physics Sardar Vallabhbhai National Institute of Technology

The mass spectra of charmonium are investigated using a Coulomb plus linear（Cornell）*** wave functions in position space as well as in momentum space are employed to calculate the expectation values of potential and kinetic energy *** experimental states（X（4660）（5^3S1）,X（3872）（2^3P1）,X（3900）（2^1P1）,X（3915）（2^3P0）and X（4274）（3^3P1）etc.）are assigned as charmonium *** also study the regge trajectories,pseudoscalar and vector decay constants,electric and magnetic dipole transition rates,and annihilation decay widths for charmonium states.

关键词： potential model mass spectrum decay constant regge trajectories

Hadronic spectra from deformed AdS backgrounds

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Chinese Physics C 2020年第6期44卷 109-122页

作者： Eduardo Folco Capossoli Miguel Angel Martín Contreras Danning Li Alfredo Vega Henrique Boschi-Filho Instituto de Física Universidade Federal do Rio de Janeiro21.941-972-Rio de Janeiro-RJ-Brazil Departamento de Física/Mestrado Profissional em Práticas da Educação Básica(MPPEB) Colégio Pedro II20.921-903-Rio de Janeiro-RJ-Brazil Instituto de Física y Astronomía Universidad de ValparaísoA.Gran Bretaña 1111ValparaísoChile Department of Physics and Siyuan Laboratory Jinan UniversityGuangzhou 510632China

Because of the presence of modified warp factors in metric tensors,we use deformed AdS5 spaces to apply the AdS/CFT correspondence to calculate the spectra for even and odd glueballs,scalar and vector mesons,and baryons with different *** the glueball cases,we derive their regge trajectories and compare them with those related to the pomeron and the *** the scalar and vector mesons,as well as baryons,the determined masses are compatible with the *** particular,for these hadrons we found regge trajectories compatible with another holographic approach as well as with the hadronic spectroscopy,which present an universal regge slope of approximately 1.1 GeV^2.

关键词： hadronic spectra AdS/QCD model regge trajectories