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The Preprints collection aims to cover as far as possible all the grey literature in particle physics and its related technologies. The collection contains something like 400,000 documents, out of which about 50% can be accessed electronically. The documents originate from a variety of institutes all over the world. The collection, currently available, starts in 1979 and it has a full coverage of the arXiv.org e-Print archive since its beginning in 1991.
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2020-09-08
17:27
Search for the doubly heavy baryon $\Xi_{bc}$ via decays to $D^0 p K^-$
A search for the doubly heavy $\mathit{\Xi}_{bc}^{0}$ baryon using its decay to the $D^0pK^-$ final state is performed using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the LHCb experiment between 2016 and 2018, corresponding to an integrated luminosity of 5.4 $\mathrm{fb}^{-1}$. [...]
CERN-EP-2020-137 ; LHCB-PAPER-2020-014. - 2020.
Fulltext - Previous draft version - Related data file(s)

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2020-09-08
06:13
Low-current cathode spatial harmonic magnetrons: analysis and realization based on metamaterial loaded slow wave structures / Esfahani, Nasrin Nasr (CERN)
AbstractThis paper provides an overview of theory, design, simulation, and fabrication of novel spatial harmonic magnetrons (SHMs). [...]
2018. - 7 p.

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2020-09-08
04:44
Measurements of multiplicity fluctuations of identified hadrons in inelastic proton-proton interactions at the CERN Super Proton Synchrotron / NA61/SHINE Collaboration
Measurements of multiplicity fluctuations of identified hadrons produced in inelastic p+p interactions at 31, 40, 80, and 158 GeV/$c$ beam momentum are presented. [...]
arXiv:2009.01943 ; CERN-EP-2020-142. - 35 p.
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2020-09-08
04:44
Inclusive Jet Measurements in Pb-Pb Collisions at 5.02 TeV with ALICE using Machine Learning Techniques / Bossi, Hannah
These proceedings report on measurements of the jet spectrum and nuclear modification factor for inclusive full jets (containing both charged and neutral constituents) in Pb-Pb and pp collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV recorded with the ALICE detector. [...]
arXiv:2009.02269. - 4 p.
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2020-09-07
11:37
LHC Full Energy Exploitation Study: Upgrade for Operation Beyond Ultimate Energy of 7.5TeV / Bruning, Oliver (CERN) ; Apollonio, Andrea (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Bottura, Luca (CERN) ; Brodzinski, Krzysztof (CERN) ; Claudet, Serge (CERN) ; Delikaris, Dimitri (CERN) ; De Maria, Riccardo (CERN) ; Giovannozzi, Massimo (CERN) ; Goddard, Brennan (CERN) et al.
This report looks at the feasibility and limitations of upgrading the HL-LHC for operation beyond the ultimate beam energy of 7.5 TeV by means of replacing a fraction of the nominal LHC dipole magnets with 11 T Nb3Sn magnets [...]
CERN-ACC-2020-0015. - 2020. - 22 p.

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2020-09-06
15:46
Spin Density Matrix Elements in Exclusive $\omega$ Meson Muoproduction $^*$ / Alexeev, M G ; Alexeev, G D ; Amoroso, A ; Andrieux, V ; Anosov, V ; Antoshkin, A ; Augsten, K ; Augustyniak, W ; Azevedo, C D R ; Badelek, B et al.
We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive $\omega$ meson muoproduction on the proton at COMPASS using 160 GeV/$c$ polarised $ \mu ^{+}$ and $ \mu ^{-}$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/$c^2$ $< W <$ 17.0 GeV/$c^2$, with the average kinematics $\langle Q^{2} \rangle=$ 2.1 (GeV/$c$)$^2$, $\langle W \rangle= 7.6$ GeV/$c^2$, and $\langle p^{2}_{\rm T} \rangle = 0.16$ (GeV/$c$)$^2$. [...]
CERN-EP-2020-169.- Geneva : CERN, 2020 - 32. Draft (restricted): PDF; Fulltext: PDF;

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2020-09-05
04:08
Low Mass Black Holes from Dark Core Collapse / Dasgupta, Basudeb ; Laha, Ranjan ; Ray, Anupam
Unusual masses of the black holes being discovered by gravitational wave experiments pose fundamental questions about the origin of these black holes. [...]
arXiv:2009.01825 ; TIFR/TH/20-32 ; CERN-TH-2020-145. - 8 p.
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2020-09-05
04:08
Building Models of Inflation in No-Scale Supergravity / Ellis, John ; Garcia, Marcos A.G. ; Nagata, Natsumi ; Nanopoulos, Dimitri V. ; Olive, Keith A. ; Verner, Sarunas
After reviewing the motivations for cosmological inflation formulated in the formalism of supersymmetry, we argue that the appropriate framework is that of no-scale supergravity. [...]
arXiv:2009.01709 ; KCL-PH-TH/2020-44 ; CERN-TH-2020-136 ; ACT-6-20 ; MI-TH-2024, UMN-TH-3926/20 ; FTPI-MINN-20/29 ; IFT-UAM/CSIC-20-126. - 84 p.
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2020-09-05
04:08
Implications of $\textit{SU}(2)_L$ gauge invariance for constraints on Lorentz violation / Crivellin, Andreas ; Kirk, Fiona ; Schreck, Marco
Lorentz invariance is one of the basic ingredients of quantum field theories and violations of it are stringently constrained experimentally. [...]
arXiv:2009.01247 ; CERN-TH-2020-142 ; PSI-PR-20-14 ; ZU-TH 29/20. - 9 p.
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2020-09-05
04:08
Sommerfeld-corrected relic abundance of wino dark matter with NLO electroweak potentials / Beneke, Martin ; Szafron, Robert ; Urban, Kai
Extending previous work, we calculate the electroweak potentials for all co-annihilation channels of wino dark matter at the one-loop order and obtain the wino relic abundance including the Sommerfeld effect at the next-to-leading order (NLO)..
arXiv:2009.00640 ; TUM-HEP-1281/20 ; CERN-TH-2020-144. - 48 p.
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