Search For New Physics In Events With Same Sign Dileptons And Jets In Pp Collisions At Sqrts
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Total Pages | : 29 |
Release | : 2012 |
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Download Search for New Physics in Events with Same-sign Dileptons and $b$ Jets in $pp$ Collisions at $\sqrt{s} Book in PDF, Epub and Kindle
Author | : Roman Pasechnik |
Publisher | : Frontiers Media SA |
Total Pages | : 180 |
Release | : 2020-09-03 |
Genre | : Science |
ISBN | : 2889639908 |
Download Phenomena Beyond the Standard Model: What Do We Expect for New Physics to Look Like? Book in PDF, Epub and Kindle
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
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Total Pages | : 8 |
Release | : 2007 |
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Download Inclusive Search for New Physics with Like-sign Dilepton Events in $p \bar{p}$ Collisions at $\sqrt{s}$ Book in PDF, Epub and Kindle
Author | : Frank Golf |
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Total Pages | : 161 |
Release | : 2012 |
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ISBN | : 9781267209788 |
Download Search for New Physics in a Final State with Same-sign Dileptons, Jets, and Missing Transverse Energy at 7 TeV Center of Mass Energy Book in PDF, Epub and Kindle
We report on a search for new physics in a final state with two same sign leptons, missing transverse energy, and significant hadronic activity at a center of mass energy sqrt(s) = 7 TeV. The data were collected with the CMS detector at the CERN LHC and correspond to an integrated luminosity of 0.98 inverse femtobarns. Data-driven methods are developed to estimate the dominant Standard Model backgrounds. No evidence for new physics is observed. The dominant background to the analysis comes from failures of lepton identification in Standard Model ttbar events. The ttbar production cross section in the dilepton final state is measured using 3.1 inverse picobarns of data. The cross section is measured to be 194 ± 72 (stat) ± 24 (syst) ± 21 (lumi) pb. An algorithm is developed that uses tracking information to improve the reconstruction of missing transverse energy. The reconstruction of missing transverse energy is commissioned using the first collisions recorded at 0.9, 2.36 and 7 TeV data. Events with abnormally large values of missing transverse energy are identified as arising from anomalous signals in the calorimeters. Tools are developed to identify and remove these anomalous signals.
Author | : Yueh-Feng Liu |
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Total Pages | : 0 |
Release | : 2013 |
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Download Search for New Physics Using Events with Two Photons and Large Missing Transverse Energy in Pp Collisions at ?s Book in PDF, Epub and Kindle
Author | : T. Åkesson |
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Release | : 1984 |
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Download Properties of Jets in High-E#VT Events Produced in Pp Collisions at Sqrt(s) Book in PDF, Epub and Kindle
Author | : Mario Masciovecchio |
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Release | : 2016 |
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Download Search for New Physics with the MT2 Variable in All-jets Final States Produced in Pp Collisions at √s Book in PDF, Epub and Kindle
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Total Pages | : 39 |
Release | : 2016 |
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Download Correlations Between Jets and Charged Particles in PbPb and Pp Collisions at $ \sqrt{s_{\mathrm{NN}}} Book in PDF, Epub and Kindle
In this study, the quark-gluon plasma is studied via medium-induced changes to correlations between jets and charged particles in PbPb collisions compared to pp reference data. This analysis uses data sets from PbPb and pp collisions with integrated luminosities of 166 inverse microbarns and 5.3 inverse picobarns, respectively, collected at $ \sqrt{s_{\mathrm{NN}}}=2.76 $ TeV. The angular distributions of charged particles are studied as a function of relative pseudorapidity ([Delta][eta]) and relative azimuthal angle ([Delta][Phi]) with respect to reconstructed jet directions. Charged particles are correlated with all jets with transverse momentum (pT) above 120 GeV, and with the leading and subleading jets (the highest and second-highest in pT, respectively) in a selection of back-to-back dijet events. Modifications in PbPb data relative to pp reference data are characterized as a function of PbPb collision centrality and charged particle pT. A centrality-dependent excess of low-pT particles is present for all jets studied, and is most pronounced in the most central events. This excess of low-pT particles follows a Gaussian-like distribution around the jet axis, and extends to large relative angles of [Delta][eta] ≈ 1 and [Delta][Phi] ≈ 1.
Author | : Jorge Cham |
Publisher | : Penguin |
Total Pages | : 369 |
Release | : 2018-05-08 |
Genre | : Science |
ISBN | : 0735211523 |
Download We Have No Idea Book in PDF, Epub and Kindle
Prepare to learn everything we still don’t know about our strange and mysterious universe Humanity's understanding of the physical world is full of gaps. Not tiny little gaps you can safely ignore —there are huge yawning voids in our basic notions of how the world works. PHD Comics creator Jorge Cham and particle physicist Daniel Whiteson have teamed up to explore everything we don't know about the universe: the enormous holes in our knowledge of the cosmos. Armed with their popular infographics, cartoons, and unusually entertaining and lucid explanations of science, they give us the best answers currently available for a lot of questions that are still perplexing scientists, including: * Why does the universe have a speed limit? * Why aren't we all made of antimatter? * What (or who) is attacking Earth with tiny, superfast particles? * What is dark matter, and why does it keep ignoring us? It turns out the universe is full of weird things that don't make any sense. But Cham and Whiteson make a compelling case that the questions we can't answer are as interesting as the ones we can. This fully illustrated introduction to the biggest mysteries in physics also helpfully demystifies many complicated things we do know about, from quarks and neutrinos to gravitational waves and exploding black holes. With equal doses of humor and delight, Cham and Whiteson invite us to see the universe as a possibly boundless expanse of uncharted territory that's still ours to explore.
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Total Pages | : 185 |
Release | : 1994 |
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Download Rapidity Gaps Between Jets in $p \bar{p}$ Collisions at $\sqrt{s}$ Book in PDF, Epub and Kindle
Experimental results are presented from a search for events with a rapidity gap between high transverse momentum jets produced by the Fermilab Tevatron p$\bar{p}$ collider at √s = TeV.