Tata Institute of Fundamental Research

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19912026

most citedSciPy 1.0--Fundamental Algorithms for Scientific Computing in Python

40.2k citations

researchers with a paper here

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

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Showing 2017 · hep-phShow all

23 papers · 2 filters

hep-ph2017★ 2 cited

The bulk Higgs in the Deformed RS Model

F. Mahmoudi, N. Manglani, K. Sridhar

The Randall-Sundrum model with a deformed metric can generate light Kaluza-Klein (KK) Higgs modes consistent with the electroweak precision analysis for a certain range of paramete…

hep-ph2017★ 6 cited

A Lower Bound on Inelasticity in Pion-Pion Scattering

André Martin, S. M. Roy

Assuming that the pion-pion scattering amplitude and its absorptive part are analytic inside an ellipse in $t$ - plane with foci $t = 0$ , $u = 0$ and right extremity $t = 4 m_{π}^{2} + ε$ , ($ε…

hep-ph2017★ 10 cited

An effective field theory for warm QCD

Sourendu Gupta, Rishi Sharma

Using only global symmetries of QCD, we set up an effective model of quarks at finite temperature near the cross over, including all possible terms up to dimension 6. We first trea…

hep-ph2017★ 94 cited

New physics solutions for $R_{D}$ and $R_{D^{*}}$

Ashutosh Kumar Alok, Dinesh Kumar, Jacky Kumar +2

Recent measurements of $R_{D^{*}}$ have reduced tension with the Standard Model prediction. Taking all the present data into account, we obtain the values of the Wilson coefficients…

hep-ph2017★ 62 cited

Fast Neutrino Flavor Conversion as Oscillations in a Quartic Potential

Basudeb Dasgupta, Manibrata Sen

Neutrinos in dense environments undergo collective pair conversions $ν_{e} ν ˉ_{e} \leftrightarrow ν_{x} ν ˉ_{x}$ , where $x$ is a non-electron flavor, due to forward scattering off each…

hep-ph2017★ 39 cited

Non-standard neutrino self-interactions in a supernova and fast flavor conversions

Amol Dighe, Manibrata Sen

We study the effects of non-standard self-interactions (NSSI) of neutrinos streaming out of a core-collapse supernova. We show that with NSSI, the standard linear stability analysi…

hep-ph2017★ 18 cited

New Dissipation Mechanisms from Multi-level Dark Matter Scattering

Anirban Das, Basudeb Dasgupta

Multi-level dark matter with diagonal and off-diagonal interactions shows a rich phenomenology in its self-scattering. If the interactions are mediated by a particle that is less m…

hep-ph2017★ 51 cited

Collisional and thermal dissociation of $J / ψ$ and $Υ$ states at the LHC

Samuel Aronson, Evan Borras, Brunel Odegard +2

We present new results for the suppression of high transverse momentum charmonium [ $J / ψ, ψ (2 S)$ ] and bottomonium [ $Υ (1 S), Υ (2 S), Υ (3 S)$ ] states in Pb+Pb collisions at the Large Hadro…

hep-ph2017★ 16 cited

A Framework for Finding Anomalous Objects at the LHC

Amit Chakraborty, Abhishek M. Iyer, Tuhin S. Roy

Search for new physics events at the LHC mostly rely on the assumption that the events are characterized in terms of standard-reconstructed objects such as isolated photons, lepton…

hep-ph2017★ 13 cited

Dissecting Multi-Photon Resonances at the Large Hadron Collider

B. C. Allanach, D. Bhatia, A. M. Iyer

We examine the phenomenology of the production, at the 13 TeV Large Hadron Collider (LHC), of a heavy resonance $X$ , which decays via other new on-shell particles $n$ into multi- (…

hep-ph2017★ 117 cited

Fast flavor conversions of supernova neutrinos: Classifying instabilities via dispersion relations

Francesco Capozzi, Basudeb Dasgupta, Eligio Lisi +2

Supernova neutrinos can exhibit a rich variety of flavor conversion mechanisms. In particular, they can experience "fast" self-induced flavor conversions almost immediately above t…

hep-ph2017★ 87 cited

Role of Tensor operators in $R_{K}$ and $R_{K^{*}}$

Debjyoti Bardhan, Pritibhajan Byakti, Diptimoy Ghosh

The recent LHCb measurement of $R_{K^{*}}$ in two $q^{2}$ bins, when combined with the earlier measurement of $R_{K}$ , strongly suggests lepton flavour non-universal new physics in semi-…

hep-ph2017★ 5 cited

Detection prospects of light pseudoscalar Higgs boson at the LHC

Monoranjan Guchait, Aravind H. Vijay, Jacky Kumar

The discovery potential of light pseudo scalar Higgs boson for the mass range 10-60 GeV is explored. In the context of the next-to-minimal supersymmetric standard(NMSSM) model, the…

hep-ph2017★ 52 cited

New effects of non-standard self-interactions of neutrinos in a supernova

Anirban Das, Amol Dighe, Manibrata Sen

Neutrino self-interactions are known to lead to non-linear collective flavor oscillations in a core-collapse supernova. We point out new possible effects of non-standard self-inter…

hep-ph2017

Effective Field Theory Models for Thermal QCD

Sourendu Gupta, Rishi Sharma

We present an effective field theory model for QCD at finite temperature with quarks. We discuss the mean field theory, the fixing of parameters, and a prediction for the curvature…

hep-ph2017★ 5 cited

Discovery prospects of a light Higgs boson at the LHC in type-I 2HDM

Disha Bhatia, Ushoshi Maitra, Saurabh Niyogi

We present a comprehensive analysis of observing a light Higgs boson in the mass range $70$ -- $110$ GeV at the 13/14 TeV LHC, in the context of the type-I two-Higgs-doublet model.…

hep-ph2017★ 14 cited

Lepton flavor non-universality in the B-sector: a global analyses of various new physics models

Ashutosh Kumar Alok, Jacky Kumar, Dinesh Kumar +1

The measurements of the ratios $R_{K^{(*)}}$ along with $R_{D^{(*)}}$ hint towards lepton flavor non universality which is in disagreement with the standard model. In this work, we…

hep-ph2017★ 9 cited

Constraining compressed versions of MUED and MSSM using soft tracks at the LHC

Sabyasachi Chakraborty, Saurabh Niyogi, K. Sridhar

A compressed spectrum is an anticipated hideout for many beyond standard model scenarios. Such a spectrum naturally arises in the minimal universal extra dimension framework and al…

hep-ph2017★ 123 cited

Quantum Numbers of Recently Discovered $Ω_{c}^{0}$ Baryons from Lattice QCD

M. Padmanath, Nilmani Mathur

We present the ground and excited state spectra of $Ω_{c}^{0}$ baryons with spin up to 7/2 from lattice quantum chromodynamics with dynamical quark fields. Based on our lattice res…

hep-ph2017★ 40 cited

Shear viscosity $η$ to electrical conductivity $σ_{e l}$ ratio for an anisotropic QGP

Lata Thakur, P. K. Srivastava, Guru Prakash Kadam +2

We study the transport properties of strongly interacting matter in the context of ultrarelativistic heavy ion collision experiments. We calculate the transport coefficients viz. s…

hep-ph2017★ 13 cited

Mixed Higgs-Radion States at the LHC -- a Detailed Study

Amit Chakraborty, Ushoshi Maitra, Sreerup Raychaudhuri +1

Light radions constitute one of the few surviving possibilities for observable new particle states at the sub-TeV level which arise in models with extra spacetime dimensions. It is…

hep-ph2017★ 69 cited

Neutrino mixing and $R_{K}$ anomaly in $U (1)_{X}$ models: a bottom-up approach

Disha Bhatia, Sabyasachi Chakraborty, Amol Dighe

We identify a class of $U (1)_{X}$ models which can explain the $R_{K}$ anomaly and the neutrino mixing pattern, by using a bottom-up approach. The different $X$ -charges of lepton gener…

hep-ph2017★ 12 cited

Natural emergence of neutrino masses and dark matter from $R$ -symmetry

Sabyasachi Chakraborty, Joydeep Chakrabortty

We propose a supersymmetric extension of the Standard Model (SM) with a continuous global $U (1)_{R}$ symmetry. The $R$ -charges of the SM fields are identified with that of their lept…