CMS

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2019-03-19
11:12
OpenAccess [PUBDB-2019-01605] Report/Journal Article

Improved constraints on the mixing and mass of $Z'$ bosons from resonant diboson searches at the LHC at $\sqrt{s}=13$ TeV and predictions for Run II
[DESY-18-170; arXiv:1809.08933]
New neutral vector bosons Z′ decaying to charged gauge boson pairs W$^+$W$^-$ are predicted in many scenarios of new physics, including models with an extended gauge sector such as E6, left-right symmetric ZLRS′ and the sequential standard model ZSSM′. For these benchmark models we calculate and present theoretical expectations for different values of the Z′ mass M2 and mixing parameter ξ. [...]
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ddc:530
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2019-03-05
14:46
OpenAccess [PUBDB-2019-01335] Preprint/Report
et al
Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at $\sqrt{s_\mathrm{NN}} =$ 5.44 TeV
[arXiv:1902.03603; CMS-HIN-17-006; CERN-EP-2018-294]
 GO
Measurements of the pseudorapidity distributions of charged hadrons produced in xenon-xenon collisions at a nucleon-nucleon centre-of-mass energy of $\sqrt{s_\mathrm{NN}} =$ 5.44 TeV are presented. The measurements are based on data collected by the CMS experiment at the LHC. [...]
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2019-03-05
14:29
OpenAccess [PUBDB-2019-01334] Preprint/Report
et al
Combinations of single-top-quark production cross-section measurements and $|f_{\rm LV}V_{tb}|$ determinations at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS experiments
[arXiv:1902.07158; CERN-EP-2019-005]
 GO
This paper presents the combinations of single-top-quark production cross-section measurements by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at $\sqrt{s}=7$ and 8 TeV corresponding to integrated luminosities of 1.17 to 5.1 fb$^{-1}$ at $\sqrt{s}=7$ TeV, and 12.2 to 20.3 fb$^{-1}$ at $\sqrt{s}=8$ TeV. These combinations are performed per centre-of-mass energy and for each production mode: $t$-channel, $tW$, and $s$-channel. [...]
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2019-03-04
14:54
OpenAccess [PUBDB-2019-01323] Report

Report on the Physics at the HL-LHC and Perspectives for the HE-LHC
[arXiv:1902.10229; CERN-LPCC-2019-01; CMS-FTR-19-001; ATL-PHYS-PUB-2019-006]
Seminar, Meeting location,
Contributions / Info
1377 pp. () [10.3204/PUBDB-2019-01323]  GO
Manuscript of volume 2 of the Yellow Report on the 'Workshop on the Physics of HL-LHC and perspectives at HE-LHC' containing the notes produced by the ATLAS and CMS collaborations as input to the Yellow Report volume 1..
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2019-03-04
11:10
OpenAccess [PUBDB-2019-01300] Report/Journal Article
et al
Constraints on the intrinsic charm content of the proton from recent ATLAS data
[arXiv:1712.09096; DESY-18-055; SLAC-PUB-17198]
We investigate the possibility to constrain the intrinsic charm probability $w_{\mathrm{c} {\bar{{\mathrm{c}}}}}= P_{{\mathrm{c}{\bar{\mathrm{c}}}} /\mathrm{p}}$ using first ATLAS data on the associated production of prompt photons and charm-quark jets in pp collisions at $\sqrt{s} = 8$  TeV. The upper limit $w_{\mathrm{c} {\bar{{\mathrm{c}}}}}< 1.93$  % is obtained at the 68 % confidence level. [...]
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2019-02-18
15:43
arXiv [PUBDB-2019-01144] Report/Journal Article
et al
The DESY II Test Beam Facility
[DESY-18-111; arXiv:1807.09328]
DESY Hamburg operates a test beam facility with three independent beam lines at the DESY II synchrotron. It is world-wide one of very few facilities providing test beams in the GeV range. [...]
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2019-02-18
09:52
arXiv [PUBDB-2019-01134] Report/Journal Article
et al
The DESY II Test Beam Facility
[arXiv:1807.09328; DESY-18-111]
DESY Hamburg operates a test beam facility with three independent beam lines at the DESY II synchrotron. It is world-wide one of very few facilities providing test beams in the GeV range. [...]
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2019-02-14
13:50
OpenAccess [PUBDB-2019-01106] Preprint/Report
et al
Measurements of the pp$\to$WZ inclusive and differential production cross section and constraints on charged anomalous triple gauge couplings at $\sqrt{s} =$ 13 TeV
[arXiv:1901.03428; CMS-SMP-18-002; CERN-EP-2018-322]
 GO
The WZ production cross section is measured in proton-proton collisions at a centre-of-mass energy $\sqrt{s} =$ 13 TeV using data collected with the CMS detector, corresponding to an integrated luminosity of 35.9 fb$^{-1}$. The inclusive cross section is measured to be $\sigma_{\text{tot}}($pp$\to$WZ$) =$ 48.09 $^{+1.00}_{-0.96}$ (stat) $^{+0.44}_{-0.37}$ (theo) $^{+2.39}_{-2.17}$ (syst) $\pm$ 1.39 (lumi) pb, resulting in a total uncertainty of $-$2.78/$+$2.98 pb. [...]
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2019-02-14
13:42
OpenAccess [PUBDB-2019-01104] Preprint/Report
et al
Measurement of electroweak WZ boson production and search for new physics in WZ $+$ two jets events in pp collisions at $\sqrt{s} =$ 13 TeV
[arXiv:1901.04060; CMS-SMP-18-001; CERN-EP-2018-333]
 GO
A measurement of WZ electroweak (EW) vector boson scattering is presented. The measurement is performed in the leptonic decay modes WZ$\to \ell\nu\ell'\ell'$, where $\ell, \ell' = $e, $\mu$. [...]
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2019-02-14
13:38
OpenAccess [PUBDB-2019-01103] Preprint/Report
et al
Search for supersymmetry in events with a photon, jets, b-jets, and missing transverse momentum in proton-proton collisions at 13 TeV
[arXiv:1901.06726; CMS-SUS-18-002; CERN-EP-2018-353]
 GO
A search for supersymmetry is presented based on events with at least one photon, jets, and large missing transverse momentum produced in proton-proton collisions at a center-of-mass energy of 13 TeV. The data correspond to an integrated luminosity of 35.9 fb$^{-1}$ and were recorded at the LHC with the CMS detector in 2016. [...]
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