Institution
University of Ruhuna
Education•Galle, Sri Lanka•
About: University of Ruhuna is a education organization based out in Galle, Sri Lanka. It is known for research contribution in the topics: Large Hadron Collider & Standard Model. The organization has 1799 authors who have published 2646 publications receiving 41391 citations.
Topics: Large Hadron Collider, Standard Model, Higgs boson, Population, Lepton
Papers published on a yearly basis
Papers
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TL;DR: The effects of arsenic on the human body with a main focus on assorted organ systems with respective disease conditions are outlined and underlying mechanisms of disease development in each organ system due to arsenic have been explored.
601 citations
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Vardan Khachatryan1, Albert M. Sirunyan1, Armen Tumasyan1, Wolfgang Adam2 +2802 more•Institutions (215)
TL;DR: In this paper, the branching fractions of the B meson (B-s(0)) and the B-0 meson decaying into two oppositely charged muons (mu(+) and mu(-)) were observed.
Abstract: The standard model of particle physics describes the fundamental particles and their interactions via the strong, electromagnetic and weak forces. It provides precise predictions for measurable quantities that can be tested experimentally. The probabilities, or branching fractions, of the strange B meson (B-s(0)) and the B-0 meson decaying into two oppositely charged muons (mu(+) and mu(-)) are especially interesting because of their sensitivity to theories that extend the standard model. The standard model predicts that the B-s(0)->mu(+)mu(-) and B-0 ->mu(+)mu(-) decays are very rare, with about four of the former occurring for every billion B-s(0) mesons produced, and one of the latter occurring for every ten billion B-0 mesons(1). A difference in the observed branching fractions with respect to the predictions of the standard model would provide a direction in which the standard model should be extended. Before the Large Hadron Collider (LHC) at CERN2 started operating, no evidence for either decay mode had been found. Upper limits on the branching fractions were an order of magnitude above the standard model predictions. The CMS (Compact Muon Solenoid) and LHCb(Large Hadron Collider beauty) collaborations have performed a joint analysis of the data from proton-proton collisions that they collected in 2011 at a centre-of-mass energy of seven teraelectronvolts and in 2012 at eight teraelectronvolts. Here we report the first observation of the B-s(0)->mu(+)mu(-) decay, with a statistical significance exceeding six standard deviations, and the best measurement so far of its branching fraction. Furthermore, we obtained evidence for the B-0 ->mu(+)mu(-) decay with a statistical significance of three standard deviations. Both measurements are statistically compatible with standard model predictions and allow stringent constraints to be placed on theories beyond the standard model. The LHC experiments will resume taking data in 2015, recording proton-proton collisions at a centre-of-mass energy of 13 teraelectronvolts, which will approximately double the production rates of B-s(0) and B-0 mesons and lead to further improvements in the precision of these crucial tests of the standard model.
467 citations
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TL;DR: In this article, the authors reviewed existing research that provides reliable and quantitative information on pharmaceuticals, personal care products (PCPs), endocrine disrupting compounds (EDCs), pharmaceuticals (PhACs) and their transformation products, whose occurrence at trace levels in treated wastewater is of concern for human health and the aquatic ecosystem.
462 citations
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TL;DR: Combined measurements of the production and decay rates of the Higgs boson, as well as its couplings to vector bosons and fermions, are presented and constraints are placed on various two Higgs doublet models.
Abstract: Combined measurements of the production and decay rates of the Higgs boson, as well as its couplings to vector bosons and fermions, are presented. The analysis uses the LHC proton–proton collision data set recorded with the CMS detector in 2016 at $\sqrt{s}=13\,\text {Te}\text {V} $ , corresponding to an integrated luminosity of 35.9 ${\,\text {fb}^{-1}} $ . The combination is based on analyses targeting the five main Higgs boson production mechanisms (gluon fusion, vector boson fusion, and associated production with a $\mathrm {W}$ or $\mathrm {Z}$ boson, or a top quark-antiquark pair) and the following decay modes: $\mathrm {H} \rightarrow \gamma \gamma $ , $\mathrm {Z}\mathrm {Z}$ , $\mathrm {W}\mathrm {W}$ , $\mathrm {\tau }\mathrm {\tau }$ , $\mathrm {b} \mathrm {b} $ , and $\mathrm {\mu }\mathrm {\mu }$ . Searches for invisible Higgs boson decays are also considered. The best-fit ratio of the signal yield to the standard model expectation is measured to be $\mu =1.17\pm 0.10$ , assuming a Higgs boson mass of $125.09\,\text {Ge}\text {V} $ . Additional results are given for various assumptions on the scaling behavior of the production and decay modes, including generic parametrizations based on ratios of cross sections and branching fractions or couplings. The results are compatible with the standard model predictions in all parametrizations considered. In addition, constraints are placed on various two Higgs doublet models.
451 citations
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TL;DR: Preliminary post-tsunami surveys of Sri Lankan mangrove sites with different degrees of degradation indicate that human activity exacerbated the damage inflicted on the coastal zone by the tsunami.
423 citations
Authors
Showing all 1814 results
Name | H-index | Papers | Citations |
---|---|---|---|
Andrea Giammanco | 135 | 1362 | 98093 |
Aruna Nayak | 128 | 1158 | 79945 |
Nadeesha Wickramage | 125 | 1086 | 74044 |
Atul Gurtu | 90 | 314 | 69389 |
Gary J. Macfarlane | 88 | 389 | 24742 |
A. Gurtu | 87 | 525 | 41022 |
Truls Østbye | 72 | 555 | 21225 |
Silvia Goy Lopez | 54 | 250 | 10093 |
Jesus Manuel Vizan Garcia | 54 | 258 | 10381 |
Cornelis A.M. van Gestel | 54 | 256 | 10083 |
Wanda Lucia Prado Da Silva | 43 | 128 | 5696 |
Gareth T. Jones | 43 | 197 | 8234 |
Kirthi Tennakone | 43 | 267 | 6435 |
Sena S. De Silva | 43 | 129 | 4886 |
Welathantri Gd Dharmaratna | 40 | 243 | 14785 |