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CMS Physics Analysis Summaries

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2014-11-22
18:35
Photoproduction of the coherent $J/\psi$ accompanied by the forward neutron emission in ultra-peripheral PbPb collisions at 2.76~TeV /CMS Collaboration
The cross section of coherent $J/\psi$ photoproduction accompanied by forward neutrons is measured in ultra-peripheral PbPb collisions at $\sqrt{s_{NN}} = 2.76$ TeV with the CMS experiment at the LHC. $J/\psi$ mesons are reconstructed by their decay into muon pairs while the neutrons are measured by Zero Degree Calorimeters. [...]
CMS-PAS-HIN-12-009.- Geneva : CERN, 2014 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002: PDF; Figure_003: PDF; Fulltext in PDF: PDF;

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2014-11-15
19:37
Search for a pseudoscalar boson A decaying into a Z and an h boson in the llbb final state /CMS Collaboration
A search for an extended Higgs sector is carried out in the decay chain of a pseudoscalar heavy Higgs boson A into a Z boson and a light Higgs boson h, with the Z decaying into a pair of leptons (electrons or muons) and the h into a pair of b-quarks. The light boson h is assumed to be the recently discovered standard model-like Higgs boson with a $125\,\text{GeV}$ mass. [...]
CMS-PAS-HIG-14-011.- Geneva : CERN, 2014 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_003-d: PDF; Figure_003-e: PDF; Figure_003-f: 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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2014-11-12
12:30
Measurement of the underlying event activity using charged particle jets in proton-proton collisions at 2.76 TeV /CMS Collaboration
A measurement of the underlying event (UE) activity in proton-proton collisions is performed using events with a leading charged particle jet produced at central pseudorapidity ($|\eta^{\rm{jet}}|<2$) and of transverse momentum in the range of $1$ to $100$ GeV. The analysis uses 0.3 nb$^{-1}$ of integrated luminosity at the centre-of-mass energy of 2.76 TeV at the LHC by the CMS experiment. [...]
CMS-PAS-FSQ-12-025.- 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-a: PDF; Figure_004-b: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Fulltext in PDF: PDF;

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2014-11-06
10:21
Jet energy scale uncertainty correlations between ATLAS and CMS /CMS Collaboration
The correlation of the jet energy scale uncertainties between the ATLAS and CMS experiments are presented in this note. The uncertainty components for both experiments are grouped into categories. [...]
CMS-PAS-JME-14-003.- Geneva : CERN, 2014 Fulltext in PDF: PDF;

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2014-11-02
21:54
Determination of the top-quark mass from the m(lb) distribution in dileptonic ttbar events at sqrt(s) = 8 TeV /CMS Collaboration
A measurement of the top-quark mass is presented using the distribution of the invariant mass $m_{lb}$ of the lepton and the b-quark originating from top-quark decays. The analysed dataset of pp-collisions at a centre-of-mass energy $\sqrt{s}=8$ TeV was recorded by the CMS experiment at the LHC, and corresponds to an integrated luminosity of 19.7 fb$^{-1}$. [...]
CMS-PAS-TOP-14-014.- Geneva : CERN, 2014 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_001-d: PDF; Figure_001-e: PDF; Figure_001-f: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_006: PDF; Figure_007-a: PDF; Figure_007-b: PDF; Figure_008: PDF; Fulltext in PDF: PDF;

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2014-10-21
13:09
Single top t-channel differential cross section at 8 TeV /CMS Collaboration
Measurements of differential single top quark $t$ channel production cross sections in proton-proton collisions are presented. The differential cross sections are measured as functions of the transverse momentum and the absolute value of the rapidity of the top quark. [...]
CMS-PAS-TOP-14-004.- Geneva : CERN, 2014 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_001-d: PDF; Figure_002-a: PDF; Figure_002-b: 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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2014-10-16
12:55
Search for ttbar resonances in dilepton+jets final states in pp collisions at 8 TeV /CMS Collaboration
We present a model-independent search for heavy resonances decaying to $\rm{t\bar{t}}$ pairs using 19.7~$\rm{fb^{-1}}$ of data recorded by the CMS detector in $pp$ collisions at $\sqrt{s} = 8$~TeV. The search is based on events containing two leptons (electron or muon) , at least two jets, and large missing transverse energy. No deviation is observed over the expected rate from standard model processes. [...]
CMS-PAS-B2G-12-007.- Geneva : CERN, 2014 Figure_001-a: PNG; Figure_001-b: PNG; Figure_001-c: PNG; Figure_001-d: PNG; Figure_001-e: PNG; Figure_001-f: PNG; Figure_002-a: PNG; Figure_002-b: PNG; Figure_002-c: PNG; Figure_002-d: PNG; Figure_002-e: PNG; Figure_002-f: PNG; Figure_003: PNG; Figure_004: PNG; Figure_005: PNG; Fulltext in PDF: PDF;

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2014-10-13
09:09
CMS-TOTEM feasibility studies for single diffractive Z, W, Jpsi and central exclusive dijet production in pp collisions at 13 TeV /CMS Collaboration
Feasibility studies for the measurement of single-diffractive Z or W boson production in the electron and muon channels, J/$\psi$ production in the muon decay channel and central exclusive dijet production, in proton-proton (pp) collisions with the Compact Muon Solenoid (CMS) and TOTal Elastic and diffractive cross section Measurement (TOTEM) experiments are presented. Visible cross sections are defined for such processes and presented along with the expected event yields based on the Large Hadron Collider (LHC) Run II high-$\beta^{*}$ beam optics configuration, low-pileup scenario, assuming an integrated luminosity of 10~${\rm pb}^{-1}$..
CMS-PAS-FSQ-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-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: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Figure_009-c: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Fulltext in PDF: PDF;

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2014-10-06
10:58
Search for H to bbbar in association with single top quarks as a test of Higgs couplings /CMS Collaboration
A search for the production of the Higgs boson in association with a single top quark is performed using the decay $H \to b \bar b$. The rate for this Higgs production mode is particularly sensitive to the relative sign of the Higgs boson coupling to fermions and bosons. [...]
CMS-PAS-HIG-14-015.- Geneva : CERN, 2014 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_005: 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_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_011-c: PDF; Figure_011-d: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_012-c: PDF; Figure_012-d: PDF; Figure_013: PDF; Fulltext in PDF: PDF;

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2014-10-01
10:51
Combination of cross-section measurements of associated production of a single top-quark and a W boson at sqrt[s] = 8 TeV with the ATLAS and CMS experiments /CMS Collaboration
A combination of cross-section measurements for the associated production of a top quark and a $W$~boson in proton-proton collisions at $\sqrt{s}=8$~TeV by the ATLAS and CMS experiments is presented. The two measurements are based on integrated luminosities of 20.3~fb$^{-1}$ and 12.2~fb$^{-1}$, respectively. The combined production cross section of a single top quark and a $W$~boson is determined as $\sigma_{tW} = 25.0\pm1.4\;(\text{stat.})\pm4.4\;(\text{syst.})\pm0.7\;(\text{lumi.})\,\,\text{pb} = 25.0\pm4.7\,\,\text{pb}$, in agreement with the NLO+NNLL expectation. A 95\% C.L. [...]
CMS-PAS-TOP-14-009.- Geneva : CERN, 2014 Figure_001: PDF; Fulltext in PDF: PDF;

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