CMS

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2017-09-27
11:10
OpenAccess [PUBDB-2017-11056] Preprint/Report
; ; ; et al
Search for higgsino pair production in pp collisions at $\sqrt{s}$ = 13 TeV in final states with large missing transverse momentum and two Higgs bosons decaying via $\mathrm{H} \to\mathrm{b}\overline{\mathrm{b}}$
[CMS-SUS-16-044; CERN-EP-2017-127; arXiv:1709.04896]
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Results are reported from a search for new physics in 13 TeV proton-proton collisions in the final state with large missing transverse momentum and two Higgs bosons decaying via $\mathrm{H} \to\mathrm{b}\overline{\mathrm{b}}$. The search uses a data sample accumulated by the CMS experiment at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb$^{-1}$. [...]
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2017-09-27
11:06
OpenAccess [PUBDB-2017-11055] Preprint/Report
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Challenges to the chiral magnetic wave using charge-dependent azimuthal anisotropies in pPb and PbPb collisions at $\sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV
[CMS-HIN-16-0017; CERN-EP-2017-180; arXiv:1708.08901]
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Charge-dependent anisotropy Fourier coefficients ($v_n$) of particle azimuthal distributions are measured in pPb and PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV with the CMS detector at the LHC. The normalized difference in the second-order anisotropy coefficients ($v_2$) between positively and negatively charged particles is found to depend linearly on the observed event charge asymmetry with comparable slopes for both pPb and PbPb collisions over a wide range of charged particle multiplicity. [...]
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2017-09-27
11:03
OpenAccess [PUBDB-2017-11054] Preprint/Report
; ; ; et al
Measurement of the splitting function in pp and PbPb collisions at $\sqrt{s_{_{\mathrm{NN}}}}=$ 5.02 TeV
[CMS-HIN-16-006; CERN-EP-2017-205; arXiv:1708.09429]
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Data from heavy ion collisions suggest that the evolution of a parton shower is modified by interactions with the color charges in the dense partonic medium created in these collisions. However, the stage in the shower evolution at which the modifications occur is not known. [...]
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2017-09-27
11:00
OpenAccess [PUBDB-2017-11053] Preprint/Report
; ; ; et al
Search for supersymmetry with Higgs boson to diphoton decays using the razor variables at $\sqrt{s}=$ 13 TeV
[CMS-SUS-16-045; CERN-EP-2017-158; arXiv:1709.00384]
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An inclusive search for anomalous Higgs boson production in the diphoton decay channel and in association with at least one jet is presented, using LHC proton-proton collision data collected by the CMS experiment at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 35.9 fb$^{-1}$. The razor variables $M_\mathrm{R}$ and $\mathrm{R}^2$, as well as the momentum and mass resolution of the diphoton system, are used to categorize events into different search regions. [...]
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2017-09-27
10:57
OpenAccess [PUBDB-2017-11052] Preprint/Report
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Combination of inclusive and differential $\mathrm{t}\bar{\mathrm{t}}$ charge asymmetry measurements using ATLAS and CMS data at $\sqrt{s} =$ 7 and 8 TeV
[CMS-TOP-15-016; ATLAS-TOPQ-2016-16; CERN-EP-2017-236; arXiv:1709.05327]
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This paper presents combinations of inclusive and differential measurements of the charge asymmetry ($A_{\mathrm{C}}$) in top quark pair ($\mathrm{t}\overline{\mathrm{t}}$) events with a lepton+jets signature by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at centre-of-mass energies of 7 and 8 TeV corresponding to integrated luminosities of about 5 and 20 fb$^{-1}$ for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are $A_{\mathrm{C}}^{\mathrm{LHC7}} = 0.005 \pm0.007 \text{ (stat)}\pm0.006 \text{ (syst)}$ at 7 TeV and $A_{\mathrm{C}}^{\mathrm{LHC8}} = 0.0055 \pm0.0023\text{ (stat)}\pm0.0025\text{ (syst)}$ at 8 TeV. [...]
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2017-09-27
10:53
OpenAccess [PUBDB-2017-11051] Preprint/Report
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Search for electroweak production of charginos and neutralinos in multilepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
[CMS-SUS-16-039; CERN-EP-2017-121; arXiv:1709.05406]
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Results are presented from a search for the direct electroweak production of charginos and neutralinos in signatures with either two or more leptons (electrons or muons) of the same electric charge, or with three or more leptons, which can include up to two hadronically decaying tau leptons. The results are based on a sample of proton-proton collision data collected at $\sqrt{s}=$ 13 TeV, recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb$^{-1}$. [...]
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2017-09-27
10:49
OpenAccess [PUBDB-2017-11050] Preprint/Report
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Inclusive search for a highly boosted Higgs boson decaying to a bottom quark-antiquark pair
[CMS-HIG-17-010; CERN-EP-2017-207; arXiv:1709.05543]
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An inclusive search for the standard model Higgs boson ($\mathrm{H}$) produced with large transverse momentum ($p_\mathrm{T}$) and decaying to a bottom quark-antiquark pair ($\mathrm{b}\overline{\mathrm{b}}$) is performed using a data set of pp collisions at $\sqrt{s}=$ 13 TeV collected with the CMS experiment at the LHC. The data sample corresponds to an integrated luminosity of 35.9 fb$^{-1}$. [...]
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2017-09-27
10:46
OpenAccess [PUBDB-2017-11049] Preprint/Report
; ; ; et al
Observation of electroweak production of same-sign W boson pairs in the two jet and two same-sign lepton final state in proton-proton collisions at 13 TeV
[CMS-SMP-17-004; CERN-EP-2017-232; arXiv:1709.05822]
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The first observation of electroweak production of same-sign W boson pairs in proton-proton collisions is reported. The data sample corresponds to an integrated luminosity of 35.9 fb$^{-1}$ collected at a center-of-mass energy of 13 TeV with the CMS detector at the LHC. [...]
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2017-09-27
10:38
OpenAccess [PUBDB-2017-11048] Preprint/Report
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Evidence for the Higgs boson decay to a bottom quark-antiquark pair
[CMS-HIG-16-044; CERN-EP-2017-233; arXiv:1709.07497]
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A search for the standard model (SM) Higgs boson ($\mathrm{H}$) decaying to $\mathrm{b}\overline{\mathrm{b}}$ when produced in association with an electroweak vector boson is reported for the following processes: $\mathrm{b}\overline{\mathrm{b}}(\nu\nu)\mathrm{H}$, $\mathrm{W}(\mu \nu)\mathrm{H}$, $\mathrm{W}(\mathrm{e} \nu)\mathrm{H}$, $\mathrm{Z}(\mu\mu)\mathrm{H}$, and $\mathrm{Z}(\mathrm{e}\mathrm{e})\mathrm{H}$. The search is performed in data samples corresponding to an integrated luminosity of 35.9 fb$^{-1}$ at $\sqrt{s}=$ 13 TeV recorded by the CMS experiment at the LHC during Run 2 in 2016 [...]
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2017-09-27
10:34
OpenAccess [PUBDB-2017-11047] Preprint/Report
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Observation of top quark production in proton-nucleus collisions
[CMS-HIN-17-002; CERN-EP-2017-239; arXiv:1709.07411]
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The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of $\sqrt{s_\mathrm{NN}} =$ 8.16 TeV. The measurement is performed using events with exactly one isolated electron or muon and at least four jets. [...]
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