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CMS Physics Analysis Summaries

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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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2014-08-12
18:53
Search for the Production of Dark Matter in Association with Top Quark Pairs in the Single-lepton Final State in pp collisions at $\sqrt{s} = 8$ TeV /CMS Collaboration
A search for dark matter produced in association with a pair of top quarks with the CMS detector at the LHC, using 19.7 fb$^{-1}$ of pp collision data recorded at $\sqrt{s} = 8$ TeV, is presented. This search requires the presence of one lepton, multiple jets and large missing transverse energy. [...]
CMS-PAS-B2G-14-004.- Geneva : CERN, 2014 Figure_001: PDF; Figure_002: PNG; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_003-d: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_004-c: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_005-c: PDF; Figure_005-d: PDF; Figure_006: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008: PDF; Fulltext in PDF: PDF;

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2014-08-08
12:56
Search for di-Higgs resonances decaying to 4 bottom quarks /CMS Collaboration
A model-independent search for narrow width resonant pair production of the Higgs boson where both 125 GeV bosons decay into bottom quarks is presented. The search is performed in proton-proton collision data corresponding to an integrated luminosity of 17.93 $\mathrm{fb^{-1}}$ at $\sqrt{s}$ = 8 TeV recorded by the CMS detector at the LHC. [...]
CMS-PAS-HIG-14-013.- Geneva : CERN, 2014 Figure_001: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005-a: PDF; Figure_005-b: 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_010: PDF; Fulltext in PDF: PDF;

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2014-08-07
13:19
Search for a vector-like bottom quark partner in same sign di-lepton final states /CMS Collaboration
The results of a search for pair-produced vector-like quarks with charge $-\frac{1}{3}$ are presented. The analysis was performed using a dataset of pp collisions at $\sqrt{s}=8$ TeV collected with the CMS detector and corresponding to an integrated luminosity of 19.6 $fb^{-1}$. [...]
CMS-PAS-B2G-12-020.- Geneva : CERN, 2014 Figure_001: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_002-c: PDF; Figure_002-d: PDF; Figure_002-e: PDF; Figure_002-f: PDF; Figure_003: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Fulltext in PDF: PDF;

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2014-07-24
13:45
Exclusion limits on gluino and top-squark pair production in natural SUSY scenarios with inclusive razor and exclusive single-lepton searches at 8 TeV. /CMS Collaboration
Updated bounds on gluino and top-squark pair production are derived from the search for supersymmetry in events with b-jets at $\sqrt{s}=8$ TeV. The inclusive razor search in events with b-jets is combined with the exclusive search for top squarks in events with one electron or muon. [...]
CMS-PAS-SUS-14-011.- Geneva : CERN, 2014 Figure_001: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_002-c: PDF; Figure_002-d: PDF; Figure_002-e: 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_004-e: PDF; Figure_005: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_006-c: PDF; Figure_007: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_008-c: PDF; Fulltext in PDF: PDF;

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2014-07-23
16:01
Search for Anomalous Top Chromomagnetic Dipole Moments from angular distributions in $t\bar{t}$ Dileptonic events at $\sqrt{s}=7$ TeV with the CMS detector. /CMS Collaboration
A search for new physics in the form of a top quark chromo-magnetic anomalous coupling is performed using a previous measurement of the differential $\mathrm{t\bar{t}}$ cross section as a function of the difference in azimuthal angle between the two charged leptons, $|\Delta \phi_{ll}|$, in the dilepton decay mode. The measured value of $Re(\hat{\mu}_t)$ is $0.037 \pm 0.041$ and no sign of new physics is observed. Limits on the real part of the chromomagnetic dipole moment $Re(\hat{\mu}_t)$ are determined at 95\% Confidence Level as -0.043$< Re(\hat{\mu}_t) < $0.117..
CMS-PAS-TOP-14-005.- 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; Fulltext in PDF: PDF;

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2014-07-22
14:34
J/psi and psi(2S) prompt double-differential cross sections in pp collisions at 7 TeV /CMS Collaboration
The double-differential cross sections of the promptly-produced J/$\psi$ and $\psi$(2S) mesons, in transverse momentum, $p_{\rm T}$, and absolute rapidity, $|y|$, are measured in pp collisions at $\sqrt{s} = 7$\,TeV, using a dimuon sample collected by CMS in 2011, corresponding to an integrated luminosity of 4.9\,fb$^{-1}$. The results are based on a two-dimensional analysis of the dimuon invariant mass and decay length, and cover a broad $p_{\rm T}$ range, extending from 15 to 120\,GeV in the J/$\psi$ case and to 100\,GeV in the $\psi$(2S) case, when integrated in the $|y|<1.2$ window..
CMS-PAS-BPH-14-001.- 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; Figure_007-a: PDF; Figure_007-b: PDF; Fulltext in PDF: PDF;

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