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Deepak Kar

Researcher at University of the Witwatersrand

Publications -  1205
Citations -  83312

Deepak Kar is an academic researcher from University of the Witwatersrand. The author has contributed to research in topics: Large Hadron Collider & Higgs boson. The author has an hindex of 128, co-authored 1053 publications receiving 75598 citations. Previous affiliations of Deepak Kar include West University of Timișoara & National and Kapodistrian University of Athens.

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Observation of electroweak production of two jets in association with an isolated photon and missing transverse momentum, and search for a Higgs boson decaying into invisible particles at 13 $$\text {TeV}$$ with the ATLAS detector

Georges Aad, +2832 more
TL;DR: In this paper , the authors present a measurement of the electroweak production of two jets in association with a $Z\gamma$ pair, with the $Z$ boson decaying into two neutrinos.
Journal ArticleDOI

Search for the Associated Production of the Standard-Model Higgs Boson in the All-Hadronic Channel

T. Aaltonen, +633 more
- 25 Nov 2009 - 
TL;DR: The first 95% confidence level upper limit is set on the VH production cross section with V(--> qq/qq')H(--> bb) decay for Higgs boson masses of 100-150 GeV/c2 using data from run II at the Fermilab Tevatron.

Measurement of the ZZ Production Cross Section and Limits on Anomalous Neutral Triple Gauge Couplings in Proton-Proton Collisions at √s=7 TeV with the ATLAS Detector

Georges Aad, +2967 more
TL;DR: In this paper, a measurement of the ZZ production cross section in proton-proton collisions at 7 TeV using data collected by the ATLAS experiment at the LHC is presented.
Journal ArticleDOI

Search for the higgs boson in events with missing transverse energy and b quark jets produced in pp̄ collisions at s=1.96TeV

T. Aaltonen, +661 more
- 28 May 2008 - 
TL;DR: In this article, the authors search for the standard model Higgs boson produced in association with an electroweak vector boson in events with no identified charged leptons, large imbalance in transverse momentum, and two jets where at least one contains a secondary vertex consistent with the decay of b hadrons.

Measurement of flow harmonics with multi-particle cumulants in Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV with the ATLAS detector

Georges Aad, +2885 more
Abstract: ATLAS measurements of the azimuthal anisotropy in lead–lead collisions at √ sNN = 2.76 TeV are shown using a dataset of approximately 7 μb−1 collected at the LHC in 2010. The measurements are performed for charged particles with transverse momenta 0.5 < pT < 20 GeV and in the pseudorapidity range |η| < 2.5. The anisotropy is characterized by the Fourier coefficients, vn , of the charged-particle azimuthal angle distribution for n = 2–4. The Fourier coefficients are evaluated using multi-particle cumulants calculated with the generating function method. Results on the transverse momentum, pseudorapidity and centrality dependence of the vn coefficients are presented. The elliptic flow, v2, is obtained from the two-, four-, sixand eight-particle cumulants while higher-order coefficients, v3 and v4, are determined with twoand four-particle cumulants. Flow harmonics vn measured with four-particle cumulants are significantly reduced compared to the measurement involving two-particle cumulants. A comparison to vn measurements obtained using different analysis methods and previously reported by the LHC experiments is also shown. Results of measurements of flow fluctuations evaluated with multiparticle cumulants are shown as a function of transverse momentum and the collision centrality. Models of the initial spatial geometry and its fluctuations fail to describe the flow fluctuations measurements.