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Institution

Tata Institute of Fundamental Research

EducationMumbai, 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.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the neutrino mass hierarchy sensitivity of the data from ICAL@INO was analyzed using the NUANCE based generator developed for ICAL and folded with the detector resolutions and efficiencies obtained by the INO collaboration from a full Geant4-based detector simulation.
Abstract: The relatively large measured value of θ 13 has opened up the possibility of determining the neutrino mass hierarchy through earth matter effects. Amongst the current accelerator-based experiments only NOvA has a long enough baseline to observe earth matter effects. However, NOvA is plagued with uncertainty on the knowledge of the true value of δ CP, and this could drastically reduce its sensitivity to the neutrino mass hierarchy. The earth matter effect on atmospheric neutrinos on the other hand is almost independent of δ CP. The 50 kton magnetized Iron CALorimeter at the India-based Neutrino Observatory (ICAL@INO) will be observing atmospheric neutrinos. The charge identification capability of this detector gives it an edge over others for mass hierarchy determination through observation of earth matter effects. We study in detail the neutrino mass hierarchy sensitivity of the data from this experiment simulated using the NUANCE based generator developed for ICAL@INO and folded with the detector resolutions and efficiencies obtained by the INO collaboration from a full Geant4-based detector simulation. The data from ICAL@INO is then combined with simulated data from T2K, NOvA, Double Chooz, RENO and Daya Bay experiments and a combined sensitivity study to the mass hierarchy is performed. With 10 years of ICAL@INO data combined with T2K, NOvA and reactor data, one could get about 2.3σ-5.7σ discovery of the neutrino mass hierarchy, depending on the true value of sin2 θ 23 [0.4-0.6], sin2 2θ 13 [0.08-0.12] and δ CP [0-2π].

111 citations

Journal ArticleDOI
TL;DR: In this article, a search for direct production of the supersymmetric partners of electrons or muons is presented in final states with two opposite-charge, same-flavour leptons (electrons and muons), no jets, and large missing transverse momentum.

111 citations

Journal ArticleDOI
TL;DR: A fuzzy σ-model action for the two-sphere fulfilling a fuzzy Belavin–Polyakov bound is put forth and mathematically coherent discretizations of monopoles and solitons are discussed using 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 sigma-model action for the two-sphere fulfilling a fuzzy Belavin-Polyakov bound is also put forth.

111 citations

Journal ArticleDOI
TL;DR: The distribution and morphology of the sensilla on the 3rd antennal segment of Drosophila melanogaster Meigen were studied with light and electron microscopy and four types of hairs were identified.
Abstract: The distribution and morphology of the sensilla on the 3rd antennal segment of Drosophila melanogaster Meigen (Diptera : Drosophilidae) were studied with light and electron microscopy. Four types of hairs were identified. Three types of hairs innervated by dendrites are sensilla basiconica, sensilla coeloconica and sensilla trichodea. They occur amongst a large number of the 4th type of uninnervated hairs or spinules. Sensilla basiconica and coeloconica can be easily identified by light microscopy on staining with 0.1016 silver nitrate in 70% ethanol. The tips of sensilla basiconica and coeloconica appear dark brown. Most of the sensilla trichodea and spinules remain unstained. Sensilla basiconica conform to the single-walled, multiporous sensilla, having poretubules and branched dendrites. Sensilla coeloconica are double-walled and have longitudinal channels near the tip. No wall pores are found on sensilla trichodea. Dendrites do not branch in sensilla coelonica and trichodea. A mechanosensory dendrite with characteristic tubular body is absent in these sensilla. Populations of sensilla basiconica and sensilla trichodea occur in diametrically opposite, distinct regions on the 3rd antennal segment-the former in the dorsomedial and the latter in the ventrolateral regions, whereas sensilla coeloconica are distributed on most of the anterior and posterior surfaces, including the cavity walls of the sacculus. The axons are arranged in distinct groups in the antennal nerves at the stalk of the 3rd segment. This grouping becomes more pronounced in the nerve prior to its entry into the brain.

111 citations

Journal ArticleDOI
TL;DR: In this paper, the authors used the variations in the adiabatic index in the second helium ionization zone of the Sun to infer the helium abundance in the solar envelope using the observed solar oscillation frequencies.
Abstract: The variations in the adiabatic index in the second helium ionization zone of the Sun allow us to infer the helium abundance in the solar envelope using the observed solar oscillation frequencies These variations leave their signature on the sound-speed in this region, hence, techniques based on solar sound speed inversion can be used to determine the abundance of helium These techniques are known to be sensitive to the equation of state used in the reference models Sensitivity of the helium abundance measurements to the equation of state is studied using models constructed with MHD or OPAL equations of state Recent observations of high degree solar pmodes yield helium abundance Y=0246 and 0249, respectively using reference models with MHD and OPAL equations of state Further, the models constructed using OPAL equation of state are found to be in better agreement with the inferred sound speed in the Sun, particularly below the second helium ionization zone

111 citations


Authors

Showing all 7857 results

NameH-indexPapersCitations
Pulickel M. Ajayan1761223136241
Suvadeep Bose154960129071
Subir Sarkar1491542144614
Sw. Banerjee1461906124364
Dipanwita Dutta1431651103866
Ajit Kumar Mohanty141112493062
Tariq Aziz138164696586
Andrew Mehta1371444101810
Suchandra Dutta134126587709
Kajari Mazumdar134129594253
Bobby Samir Acharya1331121100545
Gobinda Majumder133152387732
Eric Conte132120684593
Prashant Shukla131134185287
Alessandro Montanari131138793071
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202322
2022128
2021939
20201,085
20191,100
20181,040