activity
20092025
most citedPhenomenology of relaxion-Higgs mixing

135 citations · 1.1k across the 30 of their papers we have counts for

collaborators

30 papers

hep-ph2025

An EFT study of the process at the FCC-

Shankha Banerjee, Rick S. Gupta, Shilpi Jain +2

We carry out an Effective Field Theory (EFT) study of the process in the $4b + 3 \ell + \ge 2j + \slashed{E}_T$ final state. This process can uniquely probe t…

hep-ph2023

On the Dynamical Origin of the Potential and the Axion Mass

Csaba Csáki, Raffaele Tito D'Agnolo, Rick S. Gupta +3

We investigate the dynamics responsible for generating the potential of the , the (would-be) Goldstone boson associated with the anomalous axial symmetry of QCD. The sta…

hep-ph2022★ 1 cited

Probing Poincaré Violation

Rick S. Gupta, Joerg Jaeckel, Michael Spannowsky

Time and space translation invariance, giving rise to energy and momentum conservation, are not only amongst the most fundamental but also the most generally accepted symmetry assu…

hep-ph2022★ 6 cited

Running away from the T-parameter solution to the W mass anomaly

Rick S. Gupta

We show that it is essential to include renormalisation group (RG) effects for determining the SMEFT parameter space consistent with the CDF W-mass anomaly at the matching scale. T…

hep-ph2021★ 4 cited

High energy lepton colliders as the ultimate Higgs microscopes

Shankha Banerjee, Rick S. Gupta, Oscar Ochoa-Valeriano +1

We study standard electroweak/Higgs processes at the high-energy lepton colliders ILC and CLIC. We identify a subset of three operators in the SMEFT that give leading contributions…

hep-ph2020★ 19 cited

A fully differential SMEFT analysis of the golden channel using the method of moments

Shankha Banerjee, Rick S. Gupta, Oscar Ochoa-Valeriano +2

The Method of Moments is a powerful framework to disentangle the relative contributions of amplitudes of a specific process to its various phase space regions. We apply this method…

hep-ph2020★ 22 cited

Precision SMEFT bounds from the VBF Higgs at high transverse momentum

Jack Y. Araz, Shankha Banerjee, Rick S. Gupta +1

We study the production of Higgs bosons at high transverse momenta via vector-boson fusion (VBF) in the Standard Model Effective Field Theory (SMEFT). We find that contributions fr…

hep-ph2019★ 55 cited

Towards the ultimate differential SMEFT analysis

Shankha Banerjee, Rick S. Gupta, Joey Y. Reiness +2

We obtain SMEFT bounds using an approach that utilises the complete multi-dimensional differential information of a process. This approach is based on the fact that at a given EFT…

hep-ph2019★ 44 cited

On the Wondrous Stability of ALP Dark Matter

Gonzalo Alonso-Álvarez, Rick S. Gupta, Joerg Jaeckel +1

The very low mass and small coupling of axion-like particles (ALPs) is usually taken as a guarantor of their cosmological longevity, making them excellent dark matter candidates. T…

hep-ph2019★ 34 cited

Resolving the tensor structure of the Higgs coupling to -bosons via Higgs-strahlung

Shankha Banerjee, Rick S. Gupta, Joey Y. Reiness +1

We propose differential observables for that can be used to completely determine the tensor structure of the couplings releva…

hep-ph2018★ 17 cited

Out-of-the-box Baryogenesis During Relaxation

S. A. Abel, R. S. Gupta, J. Scholtz

We show that spontaneous baryogenesis occurs automatically in relaxion models if the reheating temperature is larger than the weak scale, provided the Standard Model fields are cha…

hep-ph2018★ 62 cited

Probing Electroweak Precision Physics via boosted Higgs-strahlung at the LHC

Shankha Banerjee, Christoph Englert, Rick S. Gupta +1

We study the process in the Standard Model Effective Field Theory (SMEFT) at high energies using subjet techniques to reconstruct the Higgs boso…

hep-ph2018★ 32 cited

The Hierarchion, a Relaxion Addressing the Standard Model's Hierarchies

Oz Davidi, Rick S. Gupta, Gilad Perez +2

We present a mechanism that addresses the electroweak, the strong CP, and the flavor hierarchies of the Standard Model (including neutrino masses) in a unified way. The naturalness…

hep-ph2018★ 15 cited

The Relaxion Measure Problem

Rick S. Gupta

We examine the necessity of requiring that relaxion dynamics is dominated by classical slow roll and not quantum fluctuations. It has been recently proposed by Nelson and Prescod-W…

hep-ph2017★ 28 cited

The Nelson-Barr Relaxion

Oz Davidi, Rick S. Gupta, Gilad Perez +2

Cosmological relaxation models in which the relaxion is identified with the QCD axion, generically fail to account for the smallness of the strong CP phase. We present a simple alt…

hep-ph2016★ 135 cited

Phenomenology of relaxion-Higgs mixing

Thomas Flacke, Claudia Frugiuele, Elina Fuchs +2

We show that the relaxion generically stops its rolling at a point that breaks CP leading to relaxion-Higgs mixing. This opens the door to a variety of observational probes since t…

hep-ph2015★ 24 cited

Interpreting a 750 GeV Diphoton Resonance

Rick S. Gupta, Sebastian Jäger, Yevgeny Kats +2

We discuss the implications of the significant excesses in the diphoton final state observed by the LHC experiments ATLAS and CMS around a diphoton invariant mass of 750 GeV. The i…

hep-ph2015★ 79 cited

Is the Relaxion an Axion?

Rick S. Gupta, Zohar Komargodski, Gilad Perez +1

We consider the recently proposed cosmological relaxation mechanism where the hierarchy problem is ameliorated, and the electroweak scale is dynamically selected by a slowly rollin…

hep-ph2015★ 59 cited

Is the Higgs Mechanism of Fermion Mass Generation a Fact? A Yukawa-less First-Two-Generation Model

Diptimoy Ghosh, Rick Sandeepan Gupta, Gilad Perez

It is now established that the major source of electroweak symmetry breaking (EWSB) is due to the observed Higgs particle. However, whether the Higgs mechanism is responsible for t…

hep-ph2014

BSM Primary Effects: The complete set of predictions from the dimension-6 BSM Lagrangian

Rick S. Gupta

We present a physical parameterization of the leading effects beyond the SM (BSM), that give us, at present, the best way to constrain heavy new-physics at low-energies. We call th…

hep-ph2014★ 45 cited

BSM Primary Effects

Rick S. Gupta, Alex Pomarol, Francesco Riva

Using the predictive power of the effective field theory approach, we present a physical parametrization of the leading effects beyond the SM (BSM), that give us at present the bes…

hep-ph2013★ 106 cited

Scaling and tuning of EW and Higgs observables

Joan Elias-Miro, Christophe Grojean, Rick S. Gupta +1

We study deformations of the SM via higher dimensional operators. In particular, we explicitly calculate the one-loop anomalous dimension matrix for 13 bosonic dimension-6 operator…

hep-ph2013

BSM Theories Face Higgs Coupling data

Rick S. Gupta

We discuss how much Higgs couplings (including the Higgs self coupling) can deviate from their Standard Model values, in different Beyond Standard Model (BSM) theories, if no other…

hep-ph2013★ 88 cited

How well do we need to measure the Higgs boson mass and self-coupling?

Rick S. Gupta, Heidi Rzehak, James D. Wells

Much of the discussion regarding future measurements of the Higgs boson mass and self-coupling is focussed on how well various collider options can do. In this article we ask a phy…