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346 papers · 1 filter
Discovery of PSR J1227-4853: A transition from a low-mass X-ray binary to a redback millisecond pulsar
Jayanta Roy, Paul S. Ray, Bhaswati Bhattacharyya +12
XSS J12270-4859 is an X-ray binary associated with the Fermi LAT gamma-ray source 1FGL J1227.9-4852. In 2012 December, this source underwent a transition where the X-ray and optica…
Effect of heat source on the growth of dendritic drying patterns
Kiran M. Kolwankar, Pulkit Prakash, Shruthi Radhakrishnan +4
Shining a tightly-focused but low-powered laser beam on an absorber dispersed in a biological fluid gives rise to spectacular growth of dendritic patterns. These result from locali…
Zero temperature dynamics of the Hubbard model in infinite dimensions: A local moment approach
Himadri Barman
The local moment approach (LMA) has presented itself as a powerful semi-analytical quantum impurity solver (QIS) in the context of the dynamical mean-field theory (DMFT) for the pe…
Monopoles on Sasakian Three-folds
Indranil Biswas, Jacques Hurtubise
We consider monopoles with singularities of Dirac type on quasiregular Sasakian three-folds fibering over a compact Riemann surface , for example the Hopf fibration $S^3\longrig…
Thermodynamic Geometry and Phase Transitions of Dyonic Charged AdS Black Holes
Pankaj Chaturvedi, Anirban Das, Gautam Sengupta
We investigate phase transitions and critical phenomena of four dimensional dyonic charged AdS black holes in the framework of thermodynamic geometry. In a mixed canonical grand ca…
Slowing down of vortex motion in thin NbN films near the superconductor-insulator transition
Rini Ganguly, Dipanjan Chaudhuri, Pratap Raychaudhuri +1
We present a quantitative comparison between the measurements of the complex conductance at low (kHz) and high (GHz) frequency in a thin superconducting film of NbN and the theoret…
Electric-field-induced turbulent energy cascade in an oil-in-oil emulsion
Atul Varshney, Mayur Sathe, Shankar Ghosh +3
We observe electro-hydrodynamically driven turbulent flows at low Reynolds numbers in a two-fluid emulsion consisting of micron-scale droplets. In the presence of electric fields,…
Observation and Structural Control of Charge-Density-Waves resonating with Terahertz Frequencies in NdNiO3
Rakesh Rana, Parul Pandey, S. S. Prabhu +1
Formation of charge-density-waves in ordered electronic phases (such as charge-order) is an emergent phenomenon in the perovskite class of correlated oxides. This scenario is visua…
Study of morphology and stellar content of the Galactic HII region IRAS 16148-5011
K. K. Mallick, D. K. Ojha, M. Tamura +3
An investigation of the IRAS 16148-5011 region - a cluster at a distance of 3.6 kpc - is presented here, carried out using multiwavelength data in near-infrared (NIR) from the 1.4m…
Light matter interaction in WS nanotube-graphene hybrid devices
John P. Mathew, Gobinath Jegannathan, Sameer Grover +5
We study the light matter interaction in WS nanotube-graphene hybrid devices. Using scanning photocurrent microscopy we find that by engineering graphene electrodes for WS$_{…
Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV
CMS Collaboration
Properties of the Higgs boson with mass near 125 GeV are measured in proton-proton collisions with the CMS experiment at the LHC. Comprehensive sets of production and decay measure…
Nucleon isovector couplings from lattice QCD
Gunnar S. Bali, Sara Collins, Benjamin Glässle +7
We compute the axial, scalar, tensor and pseudoscalar isovector couplings of the nucleon as well as the induced tensor and pseudoscalar charges in lattice simulations with …
Macrospin in external magnetic field: Entropy production and fluctuation theorems
Swarnali Bandopadhyay, Debasish Chaudhuri, A. M. Jayannavar
We consider stochastic rotational dynamics of a macrospin at a constant temperature, in presence of an external magnetic field. Starting from the appropriate Langevin equation whic…
Search for physics beyond the standard model in dilepton mass spectra in proton-proton collisions at sqrt(s) = 8 TeV
CMS Collaboration
Dimuon and dielectron mass spectra, obtained from data resulting from proton-proton collisions at 8 TeV and recorded by the CMS experiment, are used to search for both narrow reson…
Searches for continuous gravitational waves from nine young supernova remnants
J. Aasi, B. P. Abbott, R. Abbott +887
We describe directed searches for continuous gravitational waves in data from the sixth LIGO science data run. The targets were nine young supernova remnants not associated with pu…
Measurement of the -jet and -jet differential production cross sections in collisions at TeV
D0 Collaboration
We present a measurement of the cross sections for the associated production of a boson with at least one heavy quark jet, or , in proton-antiproton collisions. Data cor…
Lyman-alpha emitters gone missing: evidence for late reionization?
Tirthankar Roy Choudhury, Ewald Puchwein, Martin G. Haehnelt +1
We combine high resolution hydrodynamical simulations with an intermediate resolution, dark matter only simulation and an analytical model for the growth of ionized regions to esti…
Fundamental Groups of Character Varieties: Surfaces and Tori
Indranil Biswas, Sean Lawton, Daniel Ramras
We compute the fundamental group of moduli spaces of Lie group valued representations of surface and torus groups.
Searches for supersymmetry based on events with b jets and four W bosons in pp collisions at 8 TeV
CMS Collaboration
Five mutually exclusive searches for supersymmetry are presented based on events in which b jets and four W bosons are produced in proton-proton collisions at sqrt(s) = 8 TeV. The…
Measurement of the electron charge asymmetry in decays in collisions at TeV
D0 Collaboration
We present a measurement of the electron charge asymmetry in events at a center-of-mass energy of 1.96 TeV, using data corresponding to 9…
Optimal Offline and Competitive Online Strategies for Transmitter-Receiver Energy Harvesting
Siddhartha Satpathi, Rushil Nagda, Rahul Vaze
A joint transmitter-receiver energy harvesting model is considered, where both the transmitter and receiver are powered by (renewable) energy harvesting source. Given a fixed numbe…
Measurement of the inclusive 3-jet production differential cross section in proton-proton collisions at 7 TeV and determination of the strong coupling constant in the TeV range
CMS Collaboration
This paper presents a measurement of the inclusive 3-jet production differential cross section at a proton-proton centre-of-mass energy of 7 TeV using data corresponding to an inte…
Measurements of differential and double-differential Drell-Yan cross sections in proton-proton collisions at 8 TeV
CMS Collaboration
Measurements of the differential and double-differential Drell-Yan cross sections in the dielectron and dimuon channels are presented. They are based on proton-proton collision dat…
Quantum Criticality in the 122 Iron Pnictide Superconductors Emerging from Orbital-Selective Mottness
S. D. Das, M. S. Laad, L. Craco +3
The twin issues of the nature of the normal state and competing order(s) in the iron arsenides are central to understanding their unconventional, high-Tc superconductivity. We use…