Results 91 to 100 of about 1,586 (182)

Gaussian process regression as a sustainable data-driven background estimate method at the (HL)-LHC

European Physical Journal C: Particles and Fields
In this article, we evaluate the performance of a data-driven background estimate method based on Gaussian process regression (GPR). A realistic background spectrum from a search conducted by CMS is considered, where a large sub-region below the trigger ...
Jackson Barr, Bingxuan Liu
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Searching for long-lived axion-like particles via displaced vertices at the HL-LHC

European Physical Journal C: Particles and Fields
Axion-like particles (ALPs) are well-motivated extensions of the standard model (SM) that appear in numerous new physics scenarios. In this paper, we concentrate on searches for long-lived ALPs predicted by the photophobic scenario at the HL-LHC with the
Chong-Xing Yue, Xin-Yang Li, Shuo Yang, Mei-Shu-Yu Wang   +3 more
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Toponia at the HL-LHC and FCC-ee

Journal of High Energy Physics
The hint of a pseudoscalar toponium state at the Large Hadron Collider (LHC) opens a new avenue for studying a novel class of QCD (quasi-)bound states with comparable formation and decay times.
Yang Bai, Ting-Kuo Chen, Yiming Yang
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Introduction to the HL-LHC Project

, 2015
The Large Hadron Collider (LHC) is one of largest scientific instruments ever built. It has been exploring the new energy frontier since 2010, gathering a global user community of 7,000 scientists. To extend its discovery potential, the LHC will need a major upgrade in the 2020s to increase its luminosity (rate of collisions) by a factor of five beyond
Rossi, L., Brüning, O.
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HL-LHC Operational Scenarios

, 2015
The main aim of this document is to have a clearly identified set of beam and machine parameters to be used for numerical simulations.
Metral, Elias, Arduini, Gianluigi, Banfi, Danilo, Barranco Garcia, Javier, Biancacci, Nicolo, Brüning, Oliver, De Maria, Riccardo, Giovannozzi, Massimo, Höfle, Wolfgang, Li, Kevin, Esteban Muller, Juan, Papaphilippou, Yannis, Pieloni, Tatiana, Salvant, Benoit, Shaposhnikova, Elena, Tambasco, Claudia, Valishev, Alexander, Valuch, Daniel, Wolski, Andrzej   +18 more
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Precision tests in $$\varvec{b\rightarrow s\ell ^+\ell ^-}$$ b → s ℓ + ℓ - ( $$\varvec{\ell =e,\mu }$$ ℓ = e , μ ) at FCC-ee

European Physical Journal C: Particles and Fields
The rare semi-leptonic decays $$B\rightarrow K^*\ell ^+\ell ^-$$ B → K ∗ ℓ + ℓ - , with $$\ell =e, \mu $$ ℓ = e , μ , are highly sensitive to new physics (NP) due to their suppression in the Standard Model (SM).
Marzia Bordone, Claudia Cornella, Joe Davighi   +2 more
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HL-LHC Accelerator

, 2013
The tentative schedule, key ingredients, as well as progress of pertinent R&D and component prototypes for the LHC luminosity upgrade, "HL-LHC," are reviewed. Also alternative scenarios based on performance-improving consolidations (PICs) instead of a full upgrade are discussed.
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Lepton flavor violation in Higgs boson decays at the HL-LHC

Journal of High Energy Physics
We explore the discovery potential for lepton flavor-violating Higgs boson decays, h → ℓ i ℓ j (ℓ i ≠ ℓ j ; ℓ = e, μ, τ), in proton-proton collisions.
Marco A. Arroyo-Ureña, Edwin A. Herrera-Chacón, Iran Melendez-Hernández, Sebastian Rosado-Navarro   +3 more
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Probing the dimuon channel of a Z′ boson at the HL-LHC using multivariate analysis

Nuclear Physics B
The upcoming upgrade of the existing LHC facility at CERN is known as the High-Luminosity Large Hadron Collider (HL-LHC). It is designed to extend its physics reach by substantially increasing the integrated luminosity.
Ali M. Hamed, El-sayed A. El-dahshan, S. Elgammal   +2 more
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HL-LHC

Status report and final plan of the Japanese contribution to HL ...
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