CERN Accelerating science

CERN Preprints

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2021-06-11
17:30
MEASUREMENT OF THE HIGGS BRANCHING RATIO BR(H → γγ) AT 3 TeV CLIC / Kacarevic, G (University of Belgrad, RS) ; Bozovic-Jelisavcic, I (University of Belgrad, RS) ; Vukasinovic, N (University of Belgrad, RS) ; Milutinovic-Dumbelovic, G (University of Belgrad, RS) ; Radulovic, M (\\university of Kragujevac, RS) ; Stevanovic, J (University of Kragujevac, RS) ; Agatonovic-Jovin, T (University of Belgrad, RS)
In this paper we address the potential of a 3 TeV center-of-mass energy Compact Linear Collider (CLIC) to measure the Standard Model (SM) Higgs boson decay to two photons. Since photons are massless, they are not coupled to the Higgs boson at tree level, but they are created in a loop exchange of heavy particles either from the Standard Model or beyond. [...]
CLICdp-Conf-2021-002.- Geneva : CERN, 2021 - 6. Fulltext: PDF;
In : International Workshop on Future Linear Colliders, Online, Ne, 15 - 18 Mar 2021

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2021-06-11
04:17
Higher spin wormholes from modular bootstrap / Das, Diptarka (Indian Inst. Tech., Kanpur) ; Datta, Shouvik (CERN)
We investigate the connection between spacetime wormholes and ensemble averaging in the context of higher spin AdS$_3$/CFT$_2$. [...]
arXiv:2106.03889 ; CERN-TH-2021-085.
- 31 p.
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2021-06-11
04:17
Sliding Naturalness / D'Agnolo, Raffaele Tito (IPhT, Saclay) ; Teresi, Daniele (CERN)
We present a novel framework to solve simultaneously the electroweak hierarchy problem and the strong-CP problem. [...]
arXiv:2106.04591 ; CERN-TH-2021-055.
- 8 p.
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2021-06-11
04:17
An analysis of Bayesian estimates for missing higher orders in perturbative calculations / Duhr, Claude (CERN) ; Huss, Alexander (CERN) ; Mazeliauskas, Aleksas (CERN) ; Szafron, Robert (Brookhaven)
With current high precision collider data, the reliable estimation of theoretical uncertainties due to missing higher orders (MHOs) in perturbation theory has become a pressing issue for collider phenomenology. [...]
arXiv:2106.04585 ; CERN-TH-2021-058.
- 62 p.
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2021-06-11
04:17
Anatomy of a new anomaly in non-leptonic B decays / Algueró, M. (Barcelona, IFAE) ; Crivellin, A. (CERN ; Zurich U. ; PSI, Villigen) ; Descotes-Genon, S. (Barcelona, IFAE) ; Matias, J. (Barcelona, IFAE) ; Novoa-Brunet, M. (IJCLab, Orsay)
We discuss the anatomy of the $L_{VV}$ observable designed as a ratio of the longitudinal components of $B_s \to VV$ versus $B_d \to VV$ decays. [...]
arXiv:2105.11837.
- 4 p.

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2021-06-11
04:17
QCD analysis of pion fragmentation functions in the xFitter framework / Abdolmaleki, Hamed (IPM, Tehran) ; Soleymaninia, Maryam (IPM, Tehran) ; Khanpour, Hamzeh (Mazandaran U., Babolsar ; IPM, Tehran) ; Amoroso, Simone (DESY) ; Giuli, Francesco (INFN, Rome2 ; Rome U., Tor Vergata) ; Glazov, Alexander (DESY) ; Luszczak, Agnieszka (Cracow Tech. U.) ; Olness, Fredrick (Southern Methodist U.) ; Zenaiev, Oleksandr (CERN)
We present the first open-source analysis of fragmentation functions (FFs) of charged pions (entitled IPM-xFitter) computed at next-to-leading order (NLO) and next-to-next-to-leading order (NNLO) accuracy in perturbative QCD using the xFitter framework. [...]
arXiv:2105.11306.
- 20 p.
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2021-06-11
04:17
Towards the automation of Monte Carlo simulation on GPU for particle physics processes / Carrazza, Stefano (Milan U. ; INFN, Milan ; CERN ; Unlisted, AE) ; Cruz-Martinez, Juan (Milan U. ; INFN, Milan) ; Rossi, Marco (Milan U. ; INFN, Milan ; CERN) ; Zaro, Marco (Milan U. ; INFN, Milan)
In this proceedings we present MadFlow, a new framework for the automation of Monte Carlo (MC) simulation on graphics processing units (GPU) for particle physics processes. [...]
arXiv:2105.10529 ; TIF-UNIMI-2021-3.
- 6 p.
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2021-06-10
06:08
Feasibility of Hardware Acceleration in the LHC Orbit Feedback Controller / Grech, Leander (CERN) ; Alves, Diogo (CERN) ; Jackson, Stephen (CERN) ; Valentino, Gianluca (Malta U.) ; Wenninger, Jorg (CERN)
Orbit correction in accelerators typically make use of a linear model of the machine, called the Response Matrix (RM), that relates local beam deflections to position changes. [...]
2019. - 5 p.

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2021-06-10
06:08
Accelerator Schedule Management at CERN / Urbaniec, Bartlomiej (CERN) ; Roderick, Chris (CERN)
Maximizing the efficiency of operating CERN’s accelerator complex requires careful forward planning, and synchronized scheduling of cross-accelerator events. [...]
2019. - 5 p.

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2021-06-10
04:00
EFT at FASER$\nu$ / Falkowski, Adam (IJCLab, Orsay) ; González-Alonso, Martín (Valencia U.) ; Kopp, Joachim (CERN ; U. Mainz, PRISMA) ; Soreq, Yotam (CERN ; Technion) ; Tabrizi, Zahra (Virginia Tech.)
We investigate the sensitivity of the FASER$\nu$ detector to new physics in the form of non-standard neutrino interactions. [...]
arXiv:2105.12136.
- 44 p.
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