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277 papers · 1 filter
Anisotropy in the cosmic acceleration inferred from supernovae
Mohamed Rameez
Under the assumption that they are standard(isable) candles, the lightcurves of Type Ia supernovae have been analyzed in the framework of the standard Friedmann-Lemaître-Robertson-…
AstroSat timing and spectral analysis of the accretion-powered millisecond X-ray pulsar IGR J17591--2342
Akshay Singh, Andrea Sanna, Sudip Bhattacharyya +5
IGR J17591--2342, a transient accretion-powered millisecond X-ray pulsar, was discovered during its 2018 outburst. Here, we present a timing and spectral analysis of the source usi…
Control of spatiotemporal chaos by stochastic resetting
Camille Aron, Manas Kulkarni
We study how spatiotemporal chaos in dynamical systems can be controlled by stochastically returning them to their initial conditions. Focusing on discrete nonlinear maps, we analy…
First evidence for mixing-induced violation in B J/(1020) decays in pp collisions at 13 TeV
CMS Collaboration
A novel machine-learning-based flavor-tagging algorithm combining same-side and opposite-side tagging is used to obtain the equivalent of 27000 tagged B J/…
Dynamical phase transitions in certain non-ergodic stochastic processes
Yogeesh Reddy Yerrababu, Satya N. Majumdar, Benjamin Guiselin +1
We present a class of stochastic processes in which the large deviation functions of time-integrated observables exhibit singularities that relate to dynamical phase transitions of…
Search for a neutral gauge boson with nonuniversal fermion couplings in vector boson fusion processes in proton-proton collisions at = 13 TeV
CMS Collaboration
The first search for a heavy neutral spin-1 gauge boson (Z') with nonuniversal fermion couplings produced via vector boson fusion processes and decaying to tau leptons or W bosons…
Dependence of the estimated electric potential in thunderstorms observed at GRAPES-3 on the hadronic interaction generators used in simulations
B. Hariharan, S. K. Gupta, Y. Hayashi +13
A potential difference of 1.3 Giga-Volts (GV) was inferred across a thundercloud using data from the GRAPES-3 muon telescope (G3MT) [1]. This was the first-ever estimation of gigav…
Identification of low-momentum muons in the CMS detector using multivariate techniques in proton-proton collisions at = 13.6 TeV
CMS Collaboration
"Soft" muons with a transverse momentum below 10 GeV are featured in many processes studied by the CMS experiment, such as decays of heavy-flavor hadrons or rare tau lepton decays.…
Determination of the strong coupling and its running from measurements of inclusive jet production
CMS Collaboration
The value of the strong coupling is determined in a comprehensive analysis at next-to-next-to-leading order accuracy in quantum chromodynamics. The analysis uses dou…
Measurement of light-by-light scattering and the Breit-Wheeler process, and search for axion-like particles in ultraperipheral PbPb collisions at = 5.02 TeV
CMS Collaboration
Measurements of light-by-light scattering (LbL, ) and the Breit-Wheeler process (BW, ) are reported in ultraperipheral PbPb collisions at…
High-precision measurement of the W boson mass with the CMS experiment
CMS Collaboration
In the standard model of particle physics, the masses of the W and Z bosons, the carriers of the weak interaction, are uniquely related. A precise determination of their masses is…
On the packing dimension of weighted singular matrices on fractals
Gaurav Aggarwal, Anish Ghosh
We provide the first known upper bounds for the packing dimension of weighted singular and weighted -singular matrices. We also prove upper bounds for these sets when intersecte…
Three-dimensional tearing instability of flux-tube-like magnetic fields
Vinay Kumar, Pallavi Bhat
Magnetic reconnection, a fundamental plasma process, is pivotal in understanding energy conversion and particle acceleration in astrophysical systems. While extensively studied in…
Partial-immunity of two-photon correlation against wavefront distortion for spatially entangled photons
Kiran Bajar, Rounak Chatterjee, Vikas S. Bhat +1
High-dimensional quantum entanglement in photons offers notable technological advancements over traditional qubit-based systems, including increased information density and enhance…
Grey Galaxies in
Kabir Bajaj, Vipul Kumar, Shiraz Minwalla +2
It has recently been conjectured \cite{Kim:2023sig} that the end point of the rotational superradiant instability of black holes in is a Grey Galaxy: an black hole si…
Search for heavy neutral resonances decaying to tau lepton pairs in proton-proton collisions at = 13 TeV
CMS Collaboration
A search for heavy neutral gauge bosons (Z') decaying into a pair of tau leptons is performed in proton-proton collisions at = 13 TeV at the CERN LHC. The data were coll…
Four-fold Anisotropic Magnetoresistance in Antiferromagnetic Epitaxial Thin Films of MnPtPd
Shivesh Yadav, Shikhar Kumar Gupta, Mohit Verma +8
Antiferromagnets are emerging as promising alternatives to ferromagnets in spintronics applications. A key feature of antiferromagnets is their anisotropic magnetoresistance (AMR),…
Measurement of the inclusive WZ production cross section in pp collisions at = 13.6 TeV
CMS Collaboration
The inclusive WZ production cross section is measured in proton-proton collisions at a centre-of-mass energy of 13.6 TeV, using data collected during 2022 with the CMS detector, co…
Search for heavy neutral Higgs bosons A and H in the Z channel in proton-proton collisions at 13 TeV
CMS Collaboration
A direct search for new heavy neutral Higgs bosons A and H in the Z channel is presented, targeting the process pp A ZH with H $\mathrm{t\bar{t…
Inertial Dynamics of Run-and-Tumble Particle
Debraj Dutta, Anupam Kundu, Urna Basu
We study the dynamics of a single inertial run-and-tumble particle on a straight line. The motion of this particle is characterized by two intrinsic time-scales, namely, an inertia…
Non-thermal emission in galaxy groups at extremely low frequency: the case of A1213
T. Pasini, V. H. Mahatma, M. Brienza +7
Galaxy clusters and groups are the last link in the chain of hierarchical structure formation. Their environments can be significantly affected by outbursts from AGN, especially in…
DESI 2024 VII: Cosmological Constraints from the Full-Shape Modeling of Clustering Measurements
DESI Collaboration, A. G. Adame, J. Aguilar +210
We present cosmological results from the measurement of clustering of galaxy, quasar and Lyman- forest tracers from the first year of observations with the Dark Energy Spectrosc…
Lax random matrices from Calogero systems
Jitendra Kethepalli, Manas Kulkarni, Anupam Kundu +1
We study a class of random matrices arising from the Lax matrix structure of classical integrable systems, particularly the Calogero family of models. Our focus is the density of e…
Magnetic ground state and excitations in mixed 3-4 quasi-1D spin-chain oxide SrNiRhO
A. Jain, D. T. Adroja, S. Rayaprol +4
Entanglement of spin and orbital degrees of freedom, via relativistic spin-orbit coupling, in 4 transition metal oxides can give rise to a variety of novel quantum phases. A pre…