Search For New Physics In Events With Same Sign Dileptons And Jets In Pp Collisions At Sqrts PDF Download
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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.
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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.
Author | : Giuliano Panico |
Publisher | : Springer |
Total Pages | : 325 |
Release | : 2015-11-17 |
Genre | : Science |
ISBN | : 3319226177 |
Download The Composite Nambu-Goldstone Higgs Book in PDF, ePub and Kindle
The Hierarchy Problem is arguably the most important guiding principle concerning the extension to high-energy scales of the Standard Model (SM) of Fundamental Interactions. Every scenario for addressing this issue unavoidably predicts new physics in the TeV energy range, which is currently being probed directly by the LHC experimental program. Among the possible solutions to the Hierarchy Problem, the scenario of a composite Higgs boson is a very simple idea and a rather plausible picture has emerged over the years by combining the following ingredients: First, the Higgs must be a (pseudo-) Nambu-Goldstone boson, rather than a generic hadron of the new strong sector. Second, through the so-called ‘partial compositeness’, SM particles mix with strong sector resonances with suitable quantum numbers, so that they become a linear combination of elementary and composite degrees of freedom. Recently, general descriptions of the Composite Higgs Scenario were developed which successfully capture the relevant features of this theoretical framework in a largely model-independent way. The present book provides a concise and illustrative introduction to the subject for a broad audience of graduate students and non-specialist researchers in the fields of particle, nuclear and gravitational physics.