Institution
Tata Institute of Fundamental Research
Education•Mumbai, Maharashtra, India•
About: Tata Institute of Fundamental Research is a education organization based out in Mumbai, Maharashtra, India. It is known for research contribution in the topics: Magnetization & Large Hadron Collider. The organization has 7786 authors who have published 21742 publications receiving 622368 citations. The organization is also known as: TIFR.
Topics: Magnetization, Large Hadron Collider, Galaxy, Higgs boson, Lepton
Papers published on a yearly basis
Papers
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Raman Research Institute1, National Radio Astronomy Observatory2, University of Sydney3, Curtin University4, Harvard University5, Arizona State University6, Australian National University7, Commonwealth Scientific and Industrial Research Organisation8, Massachusetts Institute of Technology9, University of Washington10, Victoria University of Wellington11, University of Wisconsin–Milwaukee12, University of Melbourne13, Tata Institute of Fundamental Research14, University of Tasmania15
TL;DR: In this paper, the authors explore the relative magnitudes of three fundamental sources of uncertainty, namely, foreground contamination, thermal noise, and sample variance, in detecting the H I power spectrum from the epoch of reionization (EoR).
Abstract: In this paper, we explore for the first time the relative magnitudes of three fundamental sources of uncertainty, namely, foreground contamination, thermal noise, and sample variance, in detecting the H I power spectrum from the epoch of reionization (EoR). We derive limits on the sensitivity of a Fourier synthesis telescope to detect EoR based on its array configuration and a statistical representation of images made by the instrument. We use the Murchison Widefield Array (MWA) configuration for our studies. Using a unified framework for estimating signal and noise components in the H I power spectrum, we derive an expression for and estimate the contamination from extragalactic point-like sources in three-dimensional k -space. Sensitivity for EoR H I power spectrum detection is estimated for different observing modes with MWA. With 1000 hr of observing on a single field using the 128 tile MWA, EoR detection is feasible (S/N >1 for k ≲ 0.8 Mpc -1 ). Bandpass shaping and refinements to the EoR window are found to be effective in containing foreground contamination, which makes the instrument tolerant to imaging errors. We find that for a given observing time, observing many independent fields of view does not offer an advantage over a single field observation when thermal noise dominates over other uncertainties in the derived power spectrum.
155 citations
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TL;DR: In this paper, a search for new physics in the final state containing a photon and missing transverse energy was conducted, and the authors set 90% confidence level (CL) upper limits for spin-dependent chi-nucleon scattering for chi masses between 1 and 100 GeV.
Abstract: Results are presented from a search for new physics in the final state containing a photon and missing transverse energy. The data correspond to an integrated luminosity of 5.0 inverse femtobarns collected in pp collisions at sqrt(s)=7 TeV by the CMS experiment. The observed event yield agrees with standard-model expectations for photon plus missing transverse energy events. Using models for production of dark-matter particles (chi), we set 90% confidence level (CL) upper limits of 13.6--15.4 femtobarns on chi production in the photon plus missing transverse energy state. These provide the most sensitive upper limits for spin-dependent chi-nucleon scattering for chi masses between 1 and 100 GeV. For spin-independent contributions, the present limits are extended to chi masses below 3.5 GeV. For models with 3--6 large extra dimensions, our data exclude extra-dimensional Planck scales between 1.65 and 1.71 TeV at 95% CL.
155 citations
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TL;DR: The last decade has seen very substantial progress in the understanding of the formation and decay dynamics of multiply charged molecules, their structure, and their interactions with electrons, photons, atoms and molecules.
154 citations
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TL;DR: In this paper, multi-year measurements of near surface aerosol black carbon (BC) mass concentration, made from a high altitude station at Manora Peak (29.4° N, 79.5° E, 1958 mmsl) in the Central Himalayas, using a 7-channel Aethalometer for 38 months from November 2004 to December 2007, are examined.
154 citations
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TL;DR: In this paper, a fuzzy σ-model action for the two-sphere fulfilling a fuzzy Belavin-Polyakov bound is proposed, which is based on fuzzy physics and noncommutative geometry.
Abstract: Monopoles and solitons have important topological aspects like quantized fluxes, winding numbers and curved target spaces. Naive discretizations which substitute a lattice of points for the underlying manifolds are incapable of retaining these features in a precise way. We study these problems of discrete physics and matrix models and discuss mathematically coherent discretizations of monopoles and solitons using fuzzy physics and noncommutative geometry. A fuzzy σ-model action for the two-sphere fulfilling a fuzzy Belavin–Polyakov bound is also put forth.
154 citations
Authors
Showing all 7857 results
Name | H-index | Papers | Citations |
---|---|---|---|
Pulickel M. Ajayan | 176 | 1223 | 136241 |
Suvadeep Bose | 154 | 960 | 129071 |
Subir Sarkar | 149 | 1542 | 144614 |
Sw. Banerjee | 146 | 1906 | 124364 |
Dipanwita Dutta | 143 | 1651 | 103866 |
Ajit Kumar Mohanty | 141 | 1124 | 93062 |
Tariq Aziz | 138 | 1646 | 96586 |
Andrew Mehta | 137 | 1444 | 101810 |
Suchandra Dutta | 134 | 1265 | 87709 |
Kajari Mazumdar | 134 | 1295 | 94253 |
Bobby Samir Acharya | 133 | 1121 | 100545 |
Gobinda Majumder | 133 | 1523 | 87732 |
Eric Conte | 132 | 1206 | 84593 |
Prashant Shukla | 131 | 1341 | 85287 |
Alessandro Montanari | 131 | 1387 | 93071 |