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19 papers · 2 filters
Discovery prospects of a light charged Higgs near the fermiophobic region of Type-I 2HDM
Disha Bhatia, Nishita Desai, Siddharth Dwivedi
Determining if the SM-like Higgs is part of an extended Higgs sector is the most important question to be asked after discovery. A light charged Higgs boson with mass smaller than…
A twisted tale of the transverse-mass tail
Triparno Bandyopadhyay, Ankita Budhraja, Samadrita Mukherjee +1
We propose a tantalizing possibility that misinterpretation of the reconstructed missing momentum may have yielded the observed discrepancies among measurements of the -mass in…
Sterile Neutrinos: Propagation in Matter and Sensitivity to Sterile Mass Ordering
Dibya S. Chattopadhyay, Moon Moon Devi, Amol Dighe +3
We analytically calculate the neutrino conversion probability in the presence of sterile neutrinos, with exact dependence on and with matter effects explicitly…
Locating the Core-Mantle Boundary using Oscillations of Atmospheric Neutrinos
Anuj Kumar Upadhyay, Anil Kumar, Sanjib Kumar Agarwalla +1
Atmospheric neutrinos provide a unique avenue to explore the internal structure of Earth based on weak interactions, which is complementary to seismic studies and gravitational mea…
Constraints on the Doublet Left-Right Symmetric Model from Higgs data
Siddhartha Karmakar, Jai More, Akhila Kumar Pradhan +1
We study the constraints on the doublet left-right symmetric model (DLRSM) arising due to the Higgs data. The symmetry of this model is broken by three vacuum expectation…
Probing Ultra-light Primordial Black Holes as a Dark Matter Candidate
Anupam Ray
Dark Matter (DM) is omnipresent in our universe. Despite its abundance, the microscopic identity of DM still remains a mystery. Primordial black holes (PBHs), possibly formed via g…
Mergers as a Probe of Particle Dark Matter
Anupam Ray
Black holes below Chandrasekhar mass limit (1.4 ) can not be produced via any standard stellar evolution. Recently, gravitational wave experiments have also discovered u…
Axion-like particles as mediators for dark matter: beyond freeze-out
A. Bharucha, F. Brümmer, N. Desai +1
We consider an axion-like particle (ALP) coupled to Standard Model (SM) fermions as a mediator between the SM and a fermionic dark matter (DM) particle. We explore the case where t…
The Charged Higgs from the Bottom-Up: Probing Flavor at the LHC
Nishita Desai, Alberto Mariotti, Mustafa Tabet +1
We systematically study model-independent constraints on the three generic charged Higgs couplings to -quarks and up-type quarks. While existing LHC searches have focussed on th…
Temperature dependence of the static quark diffusion coefficient
Debasish Banerjee, Rajiv Gavai, Saumen Datta +1
The energy loss pattern of a low momentum heavy quark in a deconfined quark-gluon plasma can be understood in terms of a Langevin description. In thermal equilibrium, the motion ca…
A Proposed Kinematic Scaffolding for the Standard Model with Pre-Gravitation
Priyank Kaushik, Vatsalya Vaibhav, Tejinder P. Singh
We present a proposed kinematic scaffolding for the standard model with pre-gravitation. The notation used below records a split-complex exchange g…
Energizing gamma ray bursts via mediated neutrino heating
Tanmay Kumar Poddar, Srubabati Goswami, Arvind Kumar Mishra
The pair annihilation of neutrinos can energize violent stellar explosions such as gamma ray bursts (GRBs). The energy in this neutrino heating me…
Discriminating between Lorentz violation and non-standard interactions using core-passing atmospheric neutrinos at INO-ICAL
Sadashiv Sahoo, Anil Kumar, Sanjib Kumar Agarwalla +1
Precision measurements of neutrino oscillation parameters have provided a tremendous boost to the search for sub-leading effects due to several beyond the Standard Model scenarios…
Elaborating the Ultimate Fate of Fast Collective Neutrino Flavor Oscillations
Soumya Bhattacharyya, Basudeb Dasgupta
Dense clouds of neutrinos and antineutrinos can exhibit fast collective flavor oscillations. Previously, in Phys. Rev. Lett. 126 (2021) 061302, we proposed that such flavor oscilla…
Analytic treatment of 3-flavor neutrino oscillation and decay in matter
Dibya S. Chattopadhyay, Kaustav Chakraborty, Amol Dighe +1
We present compact analytic expressions for 3-flavor neutrino oscillation probabilities with invisible neutrino decay, where matter effects have been explicitly included. We take i…
Substructure of Multiquark Hadrons (Snowmass 2021 White Paper)
Nora Brambilla, Hua-Xing Chen, Angelo Esposito +27
In recent years there has been a rapidly growing body of experimental evidence for existence of exotic, multiquark hadrons, i.e. mesons which contain additional quarks, beyond the…
Displaced Searches for Light Vector Bosons at Belle II
Triparno Bandyopadhyay, Sabyasachi Chakraborty, Sokratis Trifinopoulos
With a design luminosity of 50 ab and detectors with tracking capabilities extending beyond 1 m, the Belle II experiment is the perfect laboratory for the search of particle…
Polarized cross sections in Higgsstrahlung for the determination of anomalous couplings
Kumar Rao, Saurabh D. Rindani, Priyanka Sarmah +1
The production of a Higgs boson in association with a at an electron-positron collider is one of the cleanest methods for the measurement of the couplings of the Higgs boson. I…
Associated production of heavy Higgs bosons with a pair in the Nonholomorphic MSSM and LHC searches
Utpal Chattopadhyay, AseshKrishna Datta, Samadrita Mukherjee +1
In the NonHolomorphic Supersymmetric Standard Model (NHSSM), the Yukawa couplings of the bottom quark () and the tau lepton () might receive substantial supersymmetric (S…