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CMS Physics Analysis Summaries

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2014-09-12
02:24
Search for a heavy charged Higgs boson in proton-proton collisions at sqrts=8 TeV with the CMS detector /CMS Collaboration
Results are presented of a search for a charged Higgs boson with a mass larger than the top quark in the $gg\rightarrow H^+tb$ production process. The final states considered contain either one electron and one muon, or two electrons, or two muons, or one muon plus one hadronically decaying tau lepton, corresponding to the charged Higgs decays $H^{+}\rightarrow tb$ and $H^+\rightarrow \tau^+\nu$. The full production and decay chain includes $gg\rightarrow H^+tb \rightarrow (\tau_h\nu) (\mu\nu b) b$ and $gg\rightarrow H^+tb \rightarrow (\ell\nu b b) (\ell'\nu b) b$, with $\ell$, $\ell'$ being an electron or a muon. The search is performed with 19.7~fb$^{-1}$ of data collected in proton-proton collisions at $\sqrt{s} = 8$~TeV with the CMS detector. We find no evidence for a charged Higgs signal and set upper limits on its production rate for mass values in the range 180-600~GeV..
CMS-PAS-HIG-13-026.- Geneva : CERN, 2014 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004: PNG; Figure_005-a: PDF; Figure_005-b: PDF; Figure_005-c: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Figure_009-c: PDF; Figure_010: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Fulltext in PDF: PDF;

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2014-09-10
15:30
Multidimensional analysis of Bose-Einstein correlations /CMS Collaboration
Two-particle, quantum-statistical (Bose-Einstein) correlations are measured in multidimensional projections of the pair relative momentum. The measurement extends previously performed one-dimensional studies to two- and three-dimensions for the 7 TeV data, and presents for the first time for the $\sqrt{s} = 2.76$ TeV data collected in 2013 at the CERN LHC. [...]
CMS-PAS-FSQ-13-002.- Geneva : CERN, 2014 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_004-c: PDF; Figure_004-d: PDF; Figure_004-e: PDF; Figure_004-f: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_005-c: PDF; Figure_005-d: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_006-c: PDF; Figure_006-d: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_008-c: PDF; Figure_008-d: PDF; Figure_009: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_013-a: PDF; Figure_013-b: PDF; Figure_014-a: PDF; Figure_014-b: PDF; Figure_014-c: PDF; Figure_014-d: PDF; Fulltext in PDF: PDF;

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2014-09-10
14:52
Search for supersymmetry in events with one photon, jets and missing transverse energy at sqrt(s) = 8 TeV /CMS Collaboration
A search for beyond the standard model physics in events with at least one photon, missing transverse energy and jets is presented. The data sample corresponds to an integrated luminosity of 19.7 fb$^{-1}$ of pp~collisions at $\sqrt{s}=8$ TeV, recorded by the CMS experiment at the LHC. [...]
CMS-PAS-SUS-14-004.- Geneva : CERN, 2014 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Fulltext in PDF: PDF;

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2014-09-10
10:44
V Tagging Observables and Correlations /CMS Collaboration
We present studies of several techniques for improving identification of hadronically decaying W and Z bosons. The performance of various algorithms and the comparison between data and simulation are analyzed in events enriched in hadronically decaying W bosons. [...]
CMS-PAS-JME-14-002.- Geneva : CERN, 2014 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_004-c: PDF; Figure_004-d: PDF; Figure_005: PDF; Figure_006: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_007-c: PDF; Figure_007-d: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_008-c: PDF; Figure_008-d: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Figure_009-c: PDF; Figure_009-d: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_013-a: PDF; Figure_013-b: PDF; Figure_013-c: PDF; Figure_013-d: PDF; Figure_014-a: PDF; Figure_014-b: PDF; Figure_015-a: PNG; Figure_015-b: PNG; Figure_016-a: PDF; Figure_016-b: PDF; Figure_017-a: PDF; Figure_017-b: PDF; Figure_018-a: PDF; Figure_018-b: PDF; Figure_019-a: PDF; Figure_019-b: PDF; Figure_020-a: PDF; Figure_020-b: PDF; Figure_021-a: PDF; Figure_021-b: PDF; Figure_022: PDF; Figure_023-a: PDF; Figure_023-b: PDF; Figure_024-a: PDF; Figure_024-b: PDF; Figure_024-c: PDF; Figure_024-d: PDF; Figure_025-a: PDF; Figure_025-b: PDF; Figure_026-a: PDF; Figure_026-b: PDF; Figure_027-a: PDF; Figure_027-b: PDF; Fulltext in PDF: PDF;

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2014-08-29
15:53
Search for pair-produced vector-like quarks of charge -1/3 decaying to bH using boosted Higgs jet-tagging in pp collisions at sqrt(s) = 8 TeV /CMS Collaboration
A search is performed for the pair-production of a heavy vector-like quark ${\rm b'}$ of charge $-1/3$ and its anti-particle, using data collected by the CMS experiment, from the LHC pp collisions at centre-of-mass energy of 8 TeV and corresponding to an integrated luminosity of 19.7 fb$^{-1}$. We search for the ${\rm b'}$ quark decaying to a Higgs-boson and a b quark, assuming a branching ratio of 100$\%$, in a final state containing a fat jet to reconstruct the boosted Higgs boson and one or more b-tagged jets. [...]
CMS-PAS-B2G-14-001.- Geneva : CERN, 2014 Fulltext in PDF: PDF;

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2014-08-29
15:53
Search for pair-produced vector-like quarks of charge -1/3 decaying to bH using boosted Higgs jet-tagging in pp collisions at sqrt(s) = 8 TeV /CMS Collaboration
A search is performed for the pair-production of a heavy vector-like quark ${\rm b'}$ of charge $-1/3$ and its anti-particle, using data collected by the CMS experiment, from the LHC pp collisions at centre-of-mass energy of 8 TeV and corresponding to an integrated luminosity of 19.7 fb$^{-1}$. We search for the ${\rm b'}$ quark decaying to a Higgs-boson and a b quark, assuming a branching ratio of 100$\%$, in a final state containing a fat jet to reconstruct the boosted Higgs boson and one or more b-tagged jets. [...]
CMS-PAS-B2G-14-001.- Geneva : CERN, 2014 Fulltext in PDF: PDF;

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2014-08-24
23:59
Search for W prime to tbbar in the all-hadronic final state /CMS Collaboration
A search for the production of a massive W' boson at an integrated luminosity of 19.7~fb$^{-1}$ is presented. We consider the hadronic decay of $W' \to tb$, focusing on events with sufficiently high mass to produce highly boosted quarks. [...]
CMS-PAS-B2G-12-009.- Geneva : CERN, 2014 Figure_001: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_004-c: PDF; Figure_005: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Figure_010: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Fulltext in PDF: PDF;

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2014-08-24
10:59
Search for physics beyond the standard model in events with two opposite-sign same-flavor leptons, jets, and missing transverse energy in pp collisions at sqrt[s] = 8 TeV /CMS Collaboration
This note presents a search for physics beyond the standard model in final states with two opposite-sign same-flavor leptons, jets, and missing transverse energy, in a sample of 8~TeV pp collisions collected with the CMS detector at the CERN LHC. The experimental analysis focuses on searches for a kinematic edge in the invariant mass distribution of the opposite-sign same-flavor lepton pair. The size of the data sample corresponds to an integrated luminosity of 19.4~fb$^{-1}$. We do not observe evidence for a statistically significant signal..
CMS-PAS-SUS-12-019.- Geneva : CERN, 2014 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_002-c: PDF; Figure_002-d: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Fulltext in PDF: PDF;

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2014-08-23
00:30
Pileup Removal Algorithms /CMS Collaboration
One of the main challenges of the upcoming LHC run will be the increase of instantaneous luminosity, which will result in a large number of additional proton-proton collisions in each event (pileup). In such a high pileup environment, the accurate reconstruction of jet properties and shapes will be more and more demanding. [...]
CMS-PAS-JME-14-001.- Geneva : CERN, 2014 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_008-c: PDF; Figure_008-d: PDF; Figure_008-e: PDF; Figure_008-f: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Figure_009-c: PDF; Figure_009-d: PDF; Figure_009-e: PDF; Figure_009-f: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_010-c: PDF; Figure_011: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_012-c: PDF; Figure_013-a: PDF; Figure_013-b: PDF; Figure_014-a: PDF; Figure_014-b: PDF; Figure_014-c: PDF; Figure_014-d: PDF; Figure_015: PDF; Figure_016-a: PDF; Figure_016-b: PDF; Figure_017-a: PDF; Figure_017-b: PDF; Figure_018: PDF; Figure_019: PDF; Figure_020-a: PDF; Figure_020-b: PDF; Figure_021-a: PDF; Figure_021-b: PDF; Figure_022-a: PDF; Figure_022-b: PDF; Figure_023-a: PDF; Figure_023-b: PDF; Fulltext in PDF: PDF;

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2014-08-12
18:53
Search for supersymmetry in two-photons+jet events with razor variables in pp collisions at sqrt(s) = 8 TeV /CMS Collaboration
A search for supersymmetry in pp collisions, in events with at least two photons and one jet, is presented. The dataset, collected at a center-of-mass energy $\sqrt{s}\,=\,8$ TeV in 2012, corresponds to an integrated luminosity of 19.7 fb$^{-1}$. [...]
CMS-PAS-SUS-14-008.- Geneva : CERN, 2014 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_003: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_005-c: PDF; Figure_005-d: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Fulltext in PDF: PDF;

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