S. Bhatnagar

activity

20052022

most citedSpectroscopy of ground and excited states of pseudoscalar and vector charmonium and bottomonium

37 citations · 215 across the 17 of their papers we have counts for

collaborators

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17 papers · 1 filter

hep-ph2022

( $γ$ , $χ_{c J} (J = 0, 1)$ ) and ( $γ$ , $η_{c}$ ) production in electron-positron annihilation at $s = 10.6$ GeV and $4.6$ GeV in the framework of Bethe-Salpeter equation

Shashank Bhatnagar, Vaishali Guleria

In present work we study the production of ground and excited charmonium states in $e^{-} e^{+} \to γ χ_{c J} (n P) (J = 0, 1)$ , and $e^{-} e^{+} \to γ η_{c} (n S)$ , through leading ord…

hep-ph2022

$J /Ψ$ and $χ_{c J} (J = 0, 1)$ production in electron-positron annihilation at $s = 10.6$ GeV in the framework of Bethe-Salpeter equation

Shashank Bhatnagar, Teresa Aruja, Vaishali Guleria

In present work we study the production of ground and excited charmonium pairs in $e^{-} e^{+} \to Ψ (n S) + χ_{c J} (n P)$ for $J = 0, 1$ and $n = 1, 2$ , through leading order (LO) tree-l…

hep-ph2021★ 8 cited

$E 1$ and M1 radiative transitions involving heavy-light axial, pseudoscalar and vector quarkonia in the framework of Bethe-Salpeter equation

Vaishali Guleria, Eshete Gebrehana, Shashank Bhatnagar

This work is an extension of our previous work in \cite{bhatnagar20} to calculate M1 transitions, $0^{-+} \to 1^{--} γ$ , and E1 transitions involving axial vector mesons suc…

hep-ph2020★ 9 cited

Mass spectra and decay constants of heavy-light axial quarkonia in the framework of Bethe-Salpeter equation

Vaishali Guleria, Shashank Bhatnagar

In this work we calculate the mass spectrum and decay constants of ground and excited states of heavy-light $P$ -wave mesons such as $1^{++}$ and $1^{+-}$ , with quark composition, $…

hep-ph2020★ 9 cited

Radiative decays of heavy-light quarkonia through $M 1$ , and $E 1$ transitions in the framework of Bethe-Salpeter equation

Shashank Bhatnagar, Eshete Gebrehana

In this work we study the radiative decays of heavy-light quarkonia through M1 and E1 transitions, that involve quark-triangle diagrams with two hadron vertices, and are difficult…

hep-ph2019★ 20 cited

Analytic approach to calculations of mass spectra and decay constants of heavy-light quarkonia in the framework of Bethe-Salpeter equation

Eshete Gebrehana, Shashank Bhatnagar, Hluf Negash

This work is an extension of the work in \cite{bhatnagar18} to ground and excited states of $0^{++}, 0^{-+}$ , and $1^{--}$ of heavy-light ($c\overline{u}, c\overline{s}, b\overline…

(γ, χcJ​(J=0,1)) and (γ, ηc​) production in electron-positron annihilation at s​=10.6 GeV and 4.6 GeV in the framework of Bethe-Salpeter equation

J/Ψ and χcJ​(J=0,1) production in electron-positron annihilation at s​=10.6 GeV in the framework of Bethe-Salpeter equation

E1 and M1 radiative transitions involving heavy-light axial, pseudoscalar and vector quarkonia in the framework of Bethe-Salpeter equation