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CERN Preprints

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2019-03-23
04:17
Magnetic monopole search with the full MoEDAL trapping detector in 13 TeV $pp$ collisions interpreted in photon-fusion and Drell-Yan production / MoEDAL Collaboration
MoEDAL is designed to identify new physics in the form of stable or pseudostable highly ionizing particles produced in high-energy LHC collisions. [...]
arXiv:1903.08491 ; CERN-EP-2019-039 ; IFIC/19-09 ; KCL-PH-TH/2019-17. - 7 p.
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2019-03-23
04:17
LHCb VELO Timepix3 Telescope / Akiba, Kazu ; van Beuzekom, Martin ; Boterenbrood, Henk ; Buchanan, Emma (Bristol U.) ; Buytaert, Jan ; Byczynski, Wiktor ; Cid Vidal, Xabier ; Collins, Paula ; Dall'Occo, Elena ; Dosil Suarez, Alvaro et al.
The LHCb VELO Timepix3 telescope is a silicon pixel tracking system constructed initially to evaluate the performance of LHCb VELO Upgrade prototypes. [...]
arXiv:1902.09755. - 16 p.
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2019-03-22
10:05
The High-Luminosity Large Hadron Collider / Bruning, Oliver (CERN) ; Rossi, Lucio (CERN)
Oliver Brüning and Lucio Rossi discuss an upgrade of the Large Hadron Collider (LHC), the High-Luminosity LHC (HL-LHC), which aims to significantly increase the luminosity..
CERN-ACC-2019-0039. - 2019. - 3 p.

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2019-03-22
09:21
Search for lepton-universality violation in $B^+\to K^+\ell^+\ell^-$ decays
A measurement of the ratio of branching fractions of the decays $B^+\to K^+\mu^+\mu^-$ and $B^+\to K^+e^+e^-$ is presented. [...]
CERN-EP-2019-043 ; LHCB-PAPER-2019-009. - 2019.
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2019-03-22
04:28
Stimulated emission of relic gravitons and their super-Poissonian statistics / Giovannini, Massimo (CERN ; INFN, Milan Bicocca)
The degree of second-order coherence of the relic gravitons produced from the vacuum is super-Poissonian and larger than in the case of a chaotic source characterized by a Bose-Einstein distribution. [...]
arXiv:1903.03796. - 11 p.
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2019-03-22
04:28
Light and strange quark masses from $N_f=2+1$ simulations with Wilson fermions / Bruno, M. (CERN) ; Campos, I. (Cantabria Inst. of Phys.) ; Koponen, J. (INFN, Rome2) ; Pena, C. (Madrid, Autonoma U.) ; Preti, D. (INFN, Turin) ; Ramos, A. (Trinity Coll., Dublin) ; Vladikas, A. (INFN, Rome2)
We present a nearly final analysis of the $u/d$ and $s$ quark masses, extracted using the PCAC quark masses reported in [PRD 95 (2017) 074504]. [...]
arXiv:1903.04094. -
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2019-03-22
04:28
Spin Physics with a fixed-target experiment at the LHC / Echevarria, M.G. (INFN, Pavia) ; Brodsky, S.J. (SLAC) ; Cavoto, G. (INFN, Rome ; Rome U.) ; Da Silva, C. (Los Alamos) ; Donato, F. (INFN, Turin ; Turin U.) ; Ferreiro, E.G. (Santiago de Compostela U.) ; Hadjidakis, C. (Orsay, IPN) ; Hřivnácová, I. (Orsay, IPN) ; Kikoła, D. (Warsaw U. of Tech.) ; Klein, A. (Los Alamos) et al.
The multi-TeV proton and ion beams of the LHC would allow for the most energetic fixed-target experiment ever. [...]
arXiv:1903.03379. - 6 p.
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2019-03-21
08:49
Observation of $C\!P$ violation in charm decays
A search for charge-parity ($C\!P$) violation in $D^0 \to K^- K^+$ and $D^0 \to \pi^- \pi^+$ decays is reported, using $pp$ collision data corresponding to an integrated luminosity of 6 $\mathrm{fb}^{-1}$ collected at a center-of-mass energy of 13 TeV with the LHCb detector. [...]
CERN-EP-2019-042 ; LHCB-PAPER-2019-006. - 2019.
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2019-03-21
04:03
Probing the trilinear Higgs boson coupling in di-Higgs production at NLO QCD including parton shower effects / Heinrich, G. (Munich, Max Planck Inst.) ; Jones, S.P. (CERN) ; Kerner, M. (Zurich U.) ; Luisoni, G. (Munich, Max Planck Inst.) ; Scyboz, L. (Munich, Max Planck Inst.)
We present results for Higgs boson pair production with variations of the trilinear Higgs boson self-coupling at next-to-leading order (NLO) in QCD including the full top quark mass dependence. [...]
arXiv:1903.08137 ; CERN-TH-2019-028 ; MPP-2019-50 ; ZU-TH-09/19. - 20 p.
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2019-03-21
04:03
The $\hat{H}$-Parameter: An Oblique Higgs View / Englert, Christoph ; Giudice, Gian F. ; Greljo, Admir ; McCullough, Matthew
We study, from theoretical and phenomenological angles, the Higgs boson oblique parameter $\hat{H}$, as the hallmark of off-shell Higgs physics. [...]
arXiv:1903.07725 ; CERN-TH-2019-027 ; DAMTP-2019-8. - 26 p.
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