CERN Accelerating science

Preprints

Últimas adquisiciones:
2020-07-09
04:47
Constraining Early Dark Energy with Large-Scale Structure / Ivanov, Mikhail M. (New York U., CCPP ; Moscow, INR) ; McDonough, Evan (MIT, Cambridge, CTP) ; Hill, J. Colin (Columbia U. ; Flatiron Inst., New York) ; Simonović, Marko (CERN) ; Toomey, Michael W. (Brown U.) ; Alexander, Stephon (Brown U.) ; Zaldarriaga, Matias (Princeton, Inst. Advanced Study)
An axion-like field comprising $\sim 10\%$ of the energy density of the universe near matter-radiation equality is a candidate to resolve the Hubble tension; this is the "early dark energy" (EDE) model. [...]
arXiv:2006.11235 ; INR-TH-2020-035; CERN-TH-2020-103.
- 26 p.
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2020-07-09
04:45
Finding Wombling Boundaries in LHC Data with Voronoi and Delaunay Tessellations / Matchev, Konstantin T. (Florida U., Inst. Fund. Theor.) ; Roman, Alexander (Florida U., Inst. Fund. Theor.) ; Shyamsundar, Prasanth (Florida U., Inst. Fund. Theor.)
We address the problem of finding a wombling boundary in point data generated by a general Poisson point process, a specific example of which is an LHC event sample distributed in the phase space of a final state signature, with the wombling boundary created by some new physics. [...]
arXiv:2006.06582.
- 49 p.
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2020-07-09
04:45
Beam-Gas Interactions / Ferro-Luzzi, M. (CERN)
An overview of beam-gas interactions in particle accelerators is presented. [...]
arXiv:2006.06490.
- 20 p.
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2020-07-08
13:35
Proceedings of the 2018 course on Numerical Methods for Analysis, Design and Modelling of Particle Accelerators, Thessaloniki, Greece, 11–23 November 2018 / Schmickler, Hermann (CERN)
The CAS course on "Numerical Methods for Analysis, Design and Modelling of Particle Accelerators" is part of the so called topical CAS courses, which are intended to give during two weeks a deep understanding of simulation and modelling tools used for the design, construction and operation of accelerators. [...]
CERN-ACC-2020-0012.
- 2020. - 322 p.
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2020-07-08
05:08
Relativistic nuclear collisions: Establishing the non-critical baseline for fluctuation measurements / Braun-Munzinger, Peter ; Friman, Bengt ; Redlich, Krzysztof ; Rustamov, Anar ; Stachel, Johanna
We study the influence of global baryon number conservation on the non-critical baseline of net baryon cumulants in heavy-ion collisions in a given acceptance, accounting for the asymmetry between the mean-numbers of baryons and antibaryons. [...]
arXiv:2007.02463 ; CERN-TH-2020-116.
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2020-07-08
05:08
Origins of the method to determine the CKM angle $\gamma$ using $B^{\pm} \to D K^{\pm}$, $D \to K_{\rm S}^0\pi^+\pi^-$ decays / Ceccucci, A. (CERN) ; Gershon, T. (Warwick U.) ; Kenzie, M. (Warwick U.) ; Ligeti, Z. (LBL, Berkeley) ; Sakai, Y. (KEK, Tsukuba) ; Trabelsi, K. (IJCLab, Orsay)
The angle $\gamma$ of the Cabibbo--Kobayashi--Maskawa unitarity triangle is a benchmark parameter of the Standard Model of particle physics. [...]
arXiv:2006.12404.
- 16 p.
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2020-07-08
05:08
Vacuum Controls and Diagnostics / Pigny, G. (CERN) ; Rocha, A. (CERN)
This paper describes the CERN's vacuum control system from the field devices to the Supervisory Control and Data Acquisition software. [...]
arXiv:2006.03263.
- 23 p.
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2020-07-08
05:08
Materials & Properties: Thermal & Electrical Characteristics / Calatroni, Sergio (CERN)
This lecture gives an introduction to the basic physics of the electrical conductivity of metals, its temperature dependence and its limiting factors. [...]
arXiv:2006.02842.
- 20 p.
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2020-07-08
05:07
DMAPS Monopix developments in large and small electrode designs / Bespin, C. (Bonn U.) ; Barbero, M. (Marseille, CPPM) ; Barrillon, P. (Marseille, CPPM) ; Berdalovic, I. (CERN) ; Bhat, S. (Marseille, CPPM) ; Breugnon, P. (Marseille, CPPM) ; Caicedo, I. (Bonn U.) ; Cardella, R. (CERN) ; Chen, Z. (Marseille, CPPM) ; Degerli, Y. (IRFU, Saclay) et al.
LF-Monopix1 and TJ-Monopix1 are depleted monolithic active pixel sensors (DMAPS) in 150 nm LFoundry and 180 nm TowerJazz CMOS technologies respectively. [...]
arXiv:2006.02297.
- 7 p.
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2020-07-08
05:07
Azimuthal angle for boson-jet production in the back-to-back limit / Chien, Yang-Ting (YITP, Stony Brook ; Stony Brook U.) ; Rahn, Rudi (Nikhef, Amsterdam ; Delta ITP, Amsterdam) ; Schrijnder van Velzen, Solange (Nikhef, Amsterdam ; Delta ITP, Amsterdam) ; Shao, Ding Yu (Stony Brook U. ; Cal State, L.A. ; UCLA, Los Angeles (main)) ; Waalewijn, Wouter J. (Nikhef, Amsterdam ; Delta ITP, Amsterdam) ; Wu, Bin (CERN)
We show for the first time that the azimuthal angle between a vector boson and a jet, when using the Winner-Take-All recombination scheme, can be predicted at high precision in the back-to-back limit in the transverse plane. [...]
arXiv:2005.12279 ; CERN-TH-2020-078 ; Nikhef 20-008.
- 6 p.
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