Utkal University

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19922026

most citedObservation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays

2k citations

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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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hep-ph2026

An $A_{4}$ -Symmetric Double Seesaw for Neutrino Masses and Mixing in Light of JUNO results

Swaraj Kumar Nanda, Maibam Ricky Devi, Chandini Dash +2

We discuss a double seesaw mechanism for generating light neutrino masses within the Standard Model extensions that include both right-handed neutrinos and extra gauge-singlet ster…

hep-ph2024★ 2 cited

Improved precision on 2-3 oscillation parameters using the synergy between DUNE and T2HK

Sanjib Kumar Agarwalla, Ritam Kundu, Masoom Singh

A high-precision measurement of $Δ m_{31}^{2}$ and $θ_{23}$ is inevitable to estimate the Earth's matter effect in long-baseline experiments which in turn plays an important role in a…

hep-ph2024★ 6 cited

A plethora of long-range neutrino interactions probed by DUNE and T2HK

Sanjib Kumar Agarwalla, Mauricio Bustamante, Masoom Singh +1

Upcoming neutrino experiments will soon search for new neutrino interactions more thoroughly than ever before, boosting the prospects of extending the Standard Model. In anticipati…

hep-ph2022★ 10 cited

Exclusive semileptonic $B_{c}$ -meson decays to radially excited charmonium and charm meson states

Lopamudra Nayak, P. C. Dash, Susmita Kar +1

In the wake of recent measurements of ratios of semileptonic branching fractions: $R_{J / ψ}, R_{D}$ and $R_{D^{*}}$ reported by the LHCb, BELLE and HFLAV Collaborat…

hep-ph2022★ 18 cited

Exclusive nonleptonic Bc-meson decays to S-wave charmonium states

Lopamudra Nayak, P. C. Dash, Susmita Kar +1

We study the exclusive two-body nonleptonic $B_{c} \to X_{c c ˉ} M$ decays, where $X_{c c ˉ}$ is either a ground(1S) or a radially excited (2S or 3S) charmonium and $M$ is a pseu…

hep-ph2021★ 10 cited

Scalar Dark Matter and Radiative Dirac neutrino mass in an extended $U (1)_{B - L}$ model

Subhasmita Mishra, Nimmala Narendra, Prafulla Kumar Panda +1

We explore a gauged $U (1)_{B - L}$ extension of standard model with inclusion of three right-handed neutrinos of exotic $B - L$ charges to cancel the gauge anomaly. Non-trivial transfo…

hep-ph2021★ 7 cited

A close look on 2-3 mixing angle with DUNE in light of current neutrino oscillation data

Sanjib Kumar Agarwalla, Ritam Kundu, Suprabh Prakash +1

Recent global fit analyses of oscillation data show a preference for normal mass ordering (NMO) at 2.5 $σ$ and provide 1.6 $σ$ indications for lower $θ_{23}$ octant and leptonic CP v…

hep-ph2021★ 13 cited

Lepton mass effects in exclusive semileptonic $B_{c}$ -meson decays

Lopamudra Nayak, Sonali Patnaik, P. C. Dash +2

In this work, we discuss exclusive semileptonic $B_{c}$ -meson decays: $B_{c} \to η_{c} (J / ψ) l ν$ and $B_{c} \to D (D^{*}) l ν$ in the framework of the relativistic independent quark(RIQ) model base…

hep-ph2021★ 18 cited

Magnetic Moments of Leptons, Charged Lepton Flavor Violations and Dark Matter Phenomenology of a Minimal Radiative Dirac Neutrino Mass Model

Bibhabasu De, Debottam Das, Manimala Mitra +1

In a simple extension of the standard model (SM), a pair of vector like lepton doublets ( $L_{1}$ and $L_{2}$ ) and a $S U (2)_{L}$ scalar doublet ( $η$ ) have been introduced to help in accom…

hep-ph2021★ 4 cited

Leptogenesis in an extended seesaw model with $U (1)_{B - L}$ symmetry

Ujjal Kumar Dey, Tapoja Jha, Ananya Mukherjee +1

We have explored an extended seesaw model accommodating a keV sterile neutrino adopting $U (1)_{B - L}$ symmetry. This model provides a natural platform for achieving resonant leptoge…

hep-ph2019

Semileptonic $B_{c}$ meson decays to S-wave charmonium states

Sonali Patnaik, Lopamudra Nayak, P. C. Dash +2

We study the semileptonic decays of $B_{c}$ meson to S-wave charmonium states in the framework of relativistic independent quark model based on an average flavor-independent confinin…

hep-ph2018★ 8 cited

Electromagnetic transitions of $(b c ˉ)$ bound system

Sonali Patnaik, P. C. Dash, Susmita Kar +1

We study electromagnetic transitions: $B_{c}^{*} (n s) \to B_{c} (n s) e^{+} e^{-}$ , $B_{c}^{*} (n s) \to B_{c} (n^{'} s) e^{+} e^{-}$ and $B_{c} (n s) \to B_{c}^{*} (n^{'} s) e^{+} e^{-}$ in the relativistic indepe…

hep-ph2017★ 17 cited

Magnetic Dipole Transitions of $B_{c}$ and $B_{c}^{*}$ mesons in the Relativistic Independent Quark Model

Sonali Patnaik, P. C. Dash, S. Kar +2

We study M1-transitions involving mesons: $B_{c} (1 s)$ , $B_{c}^{*} (1 s)$ , $B_{c} (2 s)$ , $B_{c}^{*} (2 s)$ , $B_{c} (3 s)$ and $B_{c}^{*} (3 s)$ in the relativistic independent quark (RIQ) model based on a fla…

hep-ph2011★ 19 cited

Effect of both Z and Z'-mediated flavor-changing neutral currents on the baryonic rare decay $l amb d a_{b}$ decays into $l amb d a l^{+} l^{-}$

S. Sahoo, C. K. Das, L. Maharana

We study the effect of both Z and Z'-mediated flavor-changing neutral currents (FCNCs) on the $l amb d a_{b} a r r o w l amb d a l^{+} l^{-} (l = m u, t a u)$ rare decay. We find the branching ratio…

hep-ph2005★ 1 cited

Solutions of the Renormalisation Group Equation in Minimal Supersymmetric Standard Model

B. B. Deo, L. Maharana, P. K. Mishra

Renormalisation Group Equation(RGE) for color and top couplings sector of MSSM has been solved. The mass of the top comes out to be 180.363 $\pm$ 10.876 GeV and $β_{t o p}$ =$\fracπ{2}…

hep-ph2002★ 8 cited

Does CPT violation affect the B_d meson life times and decay asymmetries?

Amitava Datta, E. A. Paschos, L. P. Singh

We study indirect CPT violating effects in B_d meson decays and mixing, taking into account the recent constraints on the CPT violating parameters from the Belle collaboration. The…

hep-ph2001★ 1 cited

Parton Distributions in Nucleon on the Basis of a Relativistic Independent Quark Model

N. Barik, R. N. Mishra

At a low resolution scale with $Q^{2} = μ^{2}$ corresponding to the nucleon bound state; deep inelastic unpolarized structure functions $F_{1} (x, μ^{2})$ and $F_{2} (x, μ^{2})$ are derived with cor…

hep-ph1997★ 1 cited

Two body non-leptonic $Λ_{b}$ decays in the large $N_{c}$ limit

A. K. Giri, L. Maharana, R. Mohanta

The two body non-leptonic $Λ_{b}$ decays are analyzed in the HQET with factorization approximation and large $N_{c}$ limit. In this limit, $Λ_{b}$ and $Λ_{c}$ baryons can be treated as the…

hep-ph1997

A Heavy Higgs Can Give Strong First Order Electroweak Phase Transition in the Standard Model

B. B. Deo, L. Maharana

The role of Higgs sector of the standard model in first order phase transition is reexamined.It is found that a solution to the mass gap equations exist which can be used in higher…

hep-ph1993★ 11 cited

Gluon Condensates at Finite Baryon Densities and Temperature

A. Mishra H. Mishra, S. P. Misra

We derive here the equation of state for quark matter with a nontrivial vacuum structure in QCD at finite temperature and baryon density. Using thermofield dynamics, the parameters…

hep-ph1992★ 17 cited

Gluon Condensates, Chiral Symmetry Breaking and Pion Wave Function

A. Mishra, S. P. Misra

We consider here chiral symmetry breaking in quantum chromodynamics arising from gluon condensates in vacuum. Through coherent states of gluons simulating a mean field type of appr…

hep-ph1992★ 7 cited

QCD at Finite Temperature: A Variational Approach:

A. Mishra, H. Mishra, S. P. Misra +1

We develop here a nonperturbative framework to study quantum chromodynamics (QCD) at finite temperatures using the thermofield dynamics (TFD) method of Umezawa. The methodology con…

hep-ph1992★ 8 cited

Effective Potentials in QCD and Chiral Symmetry Breaking

A. Mishra, H. Mishra, S. P. Misra

We consider chiral symmetry breaking through nontrivial vacuum structure with an explicit construct for the vacuum with quark antiquark condensates in QCD with Coulomb gauge for di…

An A4​-Symmetric Double Seesaw for Neutrino Masses and Mixing in Light of JUNO results