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2021-11-30
04:14
Longevity Study on the CMS Resistive Plate Chambers for HL-LHC / Aly, R.
The CMS Resistive Plate Chamber (RPC) system has been certified for 10 years of LHC operation. [...]
arXiv:2111.13995. -
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2021-11-30
04:13
Multi-lepton probes of new physics and lepton-universality in top-quark interactions / Afik, Yoav (CERN) ; Bar-Shalom, Shaouly (Technion) ; Pal, Kuntal ; Soni, Amarjit (Brookhaven) ; Wudka, Jose (UC, Riverside)
We explore the sensitivity to new physics (NP) in the associated production of top-quarks with leptons $pp \to t \bar t \ell^+ \ell^-$, which leads to the multi-leptons signals $pp \to n \ell + {\tt jets} + \not\!\! E_T$, where $n = 2,3,4$. [...]
arXiv:2111.13711. - 16 p.
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2021-11-30
04:08
Learning New Physics from an Imperfect Machine / d'Agnolo, Raffaele Tito (IPhT, Saclay) ; Grosso, Gaia (CERN ; Padua U.) ; Pierini, Maurizio (CERN) ; Wulzer, Andrea (Padua U. ; ITPP, Lausanne) ; Zanetti, Marco (Padua U.)
We show how to deal with uncertainties on the Standard Model predictions in an agnostic new physics search strategy that exploits artificial neural networks. [...]
arXiv:2111.13633. -
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2021-11-30
04:06
Beautiful mixing and CP violation at LHCb / d'Argent, Philippe (CERN)
Precision measurements of beauty hadron decays are sensitive probes of the Standard Model and a promising way to look for new physics phenomena far beyond the energy scale accessible for direct production searches. [...]
arXiv:2111.06786. - 4 p.
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2021-11-30
04:03
Spectrally Multiplexed Hong-Ou-Mandel Interference / Pietx-Casas, Oriol (Delft Tech. U.) ; Amaral, Gustavo Castro do (Delft Tech. U. ; Rio de Janeiro, Pont. U. Catol.) ; Chakraborty, Tanmoy (Delft Tech. U.) ; Berrevoets, Remon (Delft Tech. U.) ; Middelburg, Thomas (Delft Tech. U.) ; Slater, Joshua A. (Delft Tech. U.) ; Tittel, Wolfgang (Delft Tech. U. ; Geneva U. ; CERN)
We explore the suitability of a Virtually-Imaged Phased Array (VIPA) as a Spectral-to-Spatial Mode-Mapper (SSMM) for applications in quantum communication such as a quantum repeater. [...]
arXiv:2111.13610. - 5 p.
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2021-11-29
04:05
Viscous absorption of ultra-high-frequency gravitons / Giovannini, Massimo (CERN ; INFN, Milan Bicocca)
The high-frequency gravitons can be absorbed by the first and second viscosities of the post-inflationary plasma as the corresponding wavelengths reenter the Hubble radius prior to big-bang nucleosynthesis. [...]
arXiv:2111.13544. - 10 p.
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2021-11-29
04:01
Particle Graph Autoencoders and Differentiable, Learned Energy Mover's Distance / Tsan, Steven (UC, San Diego) ; Kansal, Raghav (UC, San Diego) ; Aportela, Anthony (UC, San Diego) ; Diaz, Daniel (UC, San Diego) ; Duarte, Javier (UC, San Diego) ; Krishna, Sukanya (UC, San Diego) ; Mokhtar, Farouk (UC, San Diego) ; Vlimant, Jean-Roch (Caltech) ; Pierini, Maurizio (CERN)
Autoencoders have useful applications in high energy physics in anomaly detection, particularly for jets - collimated showers of particles produced in collisions such as those at the CERN Large Hadron Collider. [...]
arXiv:2111.12849. - 5 p.
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2021-11-27
21:12
Measurement of ${\mathrm{W^{\pm}}\gamma}$ differential cross sections in proton-proton collisions at $\sqrt{s} = $ 13 TeV and effective field theory constraints
Differential cross section measurements of ${\mathrm{W^{\pm}}\gamma}$ production in proton-proton collisions at $\sqrt{s} = $ 13 TeV are presented. [...]
CERN-EP-2021-219 ; CMS-SMP-20-005-003. - 2021.
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2021-11-27
04:34
Probing multi-particle unitarity with the Landau equations / Correia, Miguel ; Sever, Amit ; Zhiboedov, Alexander
We consider the $2\to 2$ scattering amplitude of identical massive particles. [...]
arXiv:2111.12100 ; CERN-TH-2021-197. - 9 p.
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2021-11-27
04:30
Standard Model soft QCD at ATLAS and CMS / Caforio, Davide (U. Giessen, II. Phys. Inst.)
Recent results in soft QCD at LHC by the ATLAS, CMS and TOTEM Collaborations are presented. [...]
arXiv:2111.03566. - 4 p.
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