Reports

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2019-10-16
14:27
arXiv [PUBDB-2019-03693] Report/Journal Article
et al
Measurement of the top quark polarization and $\mathrm{t\bar{t}}$ spin correlations using dilepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
[arXiv:1907.03729; CMS-TOP-18-006; CERN-EP-2019-073]
Measurements of the top quark polarization and top quark pair (t¯t) spin correlations are presented using events containing two oppositely charged leptons (e+e−, e±μ∓, or μ+μ−) produced in proton-proton collisions at a center-of-mass energy of 13 TeV. The data were recorded by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.9  fb−1. [...]
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2019-10-16
14:17
arXiv [PUBDB-2019-03692] Preprint/Report
et al
Running of the top quark mass from proton-proton collisions at $\sqrt{s} =$ 13 TeV
[arXiv:1909.09193; CMS-TOP-19-007; CERN-EP-2019-189]
The running of the top quark mass is experimentally investigated for the first time. The mass of the top quark in the modified minimal subtraction ($\mathrm{\overline{MS}}$) renormalization scheme is extracted from a comparison of the differential top quark-antiquark ($\mathrm{t\overline{t}}$) cross section as a function of the invariant mass of the $\mathrm{t\overline{t}}$ system to next-to-leading-order theoretical predictions. [...]
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2019-10-15
11:03
arXiv [PUBDB-2019-03675] Report/Contribution to a conference proceedings

Deep learning detection of transients (ICRC-2019)DESY
[DESY-19-026; arXiv:1908.01615]
36th International Cosmic Ray Conference, ICRC2019, MadisonMadison, USA, 24 Jul 2019 - 1 Aug 20192019-07-242019-08-01 8 pages ()
The next generation of observatories will facilitate the discovery of new types of astrophysical transients. The detection of such phenomena, whose characteristics are presently poorly constrained, will hinge on the ability to perform blind searches. [...]
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2019-09-30
10:00
arXiv [PUBDB-2019-03493] Report/Journal Article
et al
$Z$ boson production in proton-lead collisions at the LHC accounting for transverse momenta of initial partons
[arXiv:1905.07331; DESY-19-086; DESY 19-086]
We perform a calculation of inclusive Z boson production in proton-lead collisions at the LHC taking into account the transverse momenta of the initial partons. We use the framework of kT-factorization combining transverse momentum dependent parton distributions (TMDs) with off-shell matrix elements. [...]
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2019-09-26
10:52
OpenAccess [PUBDB-2019-03457] Report/Journal Article

An Update of the ABMP16 PDF Fit
[arXiv:1909.03533; DESY-19-152; DO-TH 19/16; SAGEX-19-21]
XXVII international workshop on deep-inelastic scattering and related subjects, DIS2019, TorinoTorino, Italy, 8 Apr 2019 - 12 Apr 20192019-04-082019-04-12 Proceedings of Science / International School for Advanced Studies (DIS2019), 002 () [10.3204/PUBDB-2019-03343]  GO
We present an updated version of the ABMP16 nucleon PDFs, which is tuned by using recent precise data on $W$- and $Z/\gamma^*$-production at the LHC and the final HERA data on DIS $c$- and $b$-quark production and by imposing a stringent $Q^2$-cut on the inclusive DIS data in order to avoid the impact of higher twist terms at small $x$ at HERA. The new $W$- and $Z$-boson production data, in particular the updated version of the ATLAS data at the c.m.s. [...]
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2019-09-23
13:44
OpenAccess [PUBDB-2019-03426] Report/Journal Article
et al
Search for the production of W$^\pm$W$^\pm$W$^\mp$ events at $\sqrt{s} =$ 13 TeV
[arXiv:1905.04246; CMS-SMP-17-013; CERN-EP-2019-074]
A search for the production of events containing three W bosons predicted by the standard model is reported. The search is based on a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV recorded by the CMS experiment at the CERN LHC and corresponding to a total integrated luminosity of 35.9 fb$^{-1}$. [...]
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2019-09-23
13:36
OpenAccess [PUBDB-2019-03425] Report/Journal Article
et al
Search for supersymmetry with a compressed mass spectrum in the vector boson fusion topology with 1-lepton and 0-lepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
[arXiv:1905.13059; CMS-SUS-17-007; CERN-EP-2019-093]
A search for supersymmetric particles produced in the vector boson fusion topology in proton-proton collisions is presented. The search targets final states with one or zero leptons, large missing transverse momentum, and two jets with a large separation in rapidity. [...]
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2019-09-19
14:30
OpenAccess [PUBDB-2019-03411] Report/Journal Article
et al
Search for long-lived particles using nonprompt jets and missing transverse momentum with proton-proton collisions at $\sqrt{s} =$ 13 TeV
[arXiv:1906.06441; CMS-EXO-19-001; CERN-EP-2019-113]
A search for long-lived particles decaying to displaced, nonprompt jets and missing transverse momentum is presented. The data sample corresponds to an integrated luminosity of 137 fb$^{-1}$ of proton-proton collisions at a center-of-mass energy of 13 TeV collected by the CMS experiment at the CERN LHC in 2016-2018. [...]
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2019-09-19
14:24
OpenAccess [PUBDB-2019-03410] Report/Journal Article
et al
Search for charged Higgs bosons in the H$^{\pm}$ $\to$ $\tau^{\pm}\nu_\tau$ decay channel in proton-proton collisions at $\sqrt{s} =$ 13 TeV
[arXiv:1903.04560; CMS-HIG-18-014; CERN-EP-2019-025]
A search is presented for charged Higgs bosons in the H$^{±}$ → τ$^{±}$ν$_{τ}$ decay mode in the hadronic final state and in final states with an electron or a muon. The search is based on proton-proton collision data recorded by the CMS experiment in 2016 at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb$^{−1}$. [...]
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2019-09-19
13:57
DBCoverage [PUBDB-2019-03408] Report/Journal Article
et al
Measurement of exclusive $\rho(770)^0$ photoproduction in ultraperipheral pPb collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV
[arXiv:1902.01339; CMS-FSQ-16-007; CERN-EP-2018-285]
Exclusive $\rho^0$(770) photoproduction is measured for the first time in ultraperipheral pPb collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV with the CMS detector. The cross section $\sigma (\gamma$p $\to$ $\rho^0$(770)p) is 11.2 $\pm$ 1.4 (stat) $\pm$ 1.0 (syst) $\mu$b at $\langle W_{\gamma\mathrm{p}}\rangle =$ 92.6 GeV for photon-proton centre-of-mass energies $W_{\gamma\mathrm{p}}$ between 29 and 213 GeV. [...]
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