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A precise determination of absolute luminosity, using the bremsstrahlung process, at the future Electron-Ion Collider (EIC) will be very demanding, and its three major challenges are discussed herein. First, the bremsstrahlung rate…

Accelerator Physics · Physics 2021-09-23 Krzysztof Piotrzkowski

A major LHCb detector upgrade will be installed during long shutdown~4 (LS4) of the CERN Large Hadron Collider. The experiment will operate at a maximum luminosity of up to $1.5\times 10^{34}\mathrm{cm}^{-2}\mathrm{s}^{-1}$, with acceptance…

High Energy Physics - Experiment · Physics 2025-04-07 LHCb collaboration

One major challenge for the legacy measurements at the LHC is that the likelihood function is not tractable when the collected data is high-dimensional and the detector response has to be modeled. We review how different analysis strategies…

High Energy Physics - Phenomenology · Physics 2020-08-20 Johann Brehmer , Kyle Cranmer , Irina Espejo , Felix Kling , Gilles Louppe , Juan Pavez

A number of LHC searches now display intriguing excesses. Most prominently, the measurement of the $W^+W^-$ cross-section has been consistently $\sim 20\%$ higher than the theoretical prediction across both ATLAS and CMS for both 7 and 8…

High Energy Physics - Phenomenology · Physics 2015-06-19 Jong Soo Kim , Krzysztof Rolbiecki , Kazuki Sakurai , Jamie Tattersall

LHCb is a dedicated detector for $b$ and $c$ physics at the LHC. I will present a concise review of the detector design and performance together with a selection of early physics results and prospects. The integrated luminosity of $37…

High Energy Physics - Experiment · Physics 2011-05-27 Monica Pepe Altarelli

Two classes of far detectors have been proposed or are under operation at the LHC. The first class is a series of neutrino detectors that are sensitive to light active neutrinos via either charged-current or neutral-current interactions;…

High Energy Physics - Phenomenology · Physics 2023-10-24 Ying-nan Mao , Kechen Wang , Zeren Simon Wang

The Large Hadron Collider (LHC) at CERN will undergo an upgrade in order to increase its luminosity to $7.5 \times 10^{34}$ cm$^{-2}$s$^{-1}$. The increased luminosity during this High-Luminosity running phase (HL-LHC), starting around…

Instrumentation and Detectors · Physics 2023-09-04 The Tracker Group of the CMS Collaboration

Detectors at a high-energy muon collider must be protected from the decay products of beam muons by installing shielding material around the beam pipe. In this article, the impact of these blind detector regions on new-physics signatures…

High Energy Physics - Phenomenology · Physics 2011-07-21 A. Freitas

Several current measurements of $b \rightarrow s l^+ l^-$ processes are in tension with Standard Model predictions, whereas others (e.g.\ $R_K$ and $R_{K^\ast}$) are in reasonable agreement with them. We examine some recent $Z^\prime$…

High Energy Physics - Phenomenology · Physics 2024-10-18 Ben Allanach

We use comparison with recent LHCb data on single Z/\gamma^* production and decay to lepton pairs as a vehicle to study the current status of the application of our approach of {\it exact} amplitude-based resummation in quantum field theory…

High Energy Physics - Phenomenology · Physics 2016-03-30 A. Mukhopadhyay , B. F. L. Ward

The inclusive same-sign dilepton channel is already recognized as a promising discovery signature for supersymmetry in the early days of the LHC. We point out that it can also be used for precision measurements of sparticle masses after the…

High Energy Physics - Phenomenology · Physics 2014-11-20 Konstantin T. Matchev , Filip Moortgat , Luc Pape , Myeonghun Park

The International Linear Collider (ILC) will collide polarised electrons and positrons at beam energies of 45.6 GeV to 250 GeV and optionally up to 500 GeV. To fully exploit the physics potential of this machine, not only the luminosity and…

Instrumentation and Detectors · Physics 2008-10-13 C. Helebrant , D. Käfer , J. List

Chapter 5 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report. The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built. Since opening up a new energy frontier for exploration in…

We present a new approach to the realization of hard fixed-order corrections in predictions for the processes probed in high energy colliding hadron beam devices, with some emphasis on the LHC and the future FCC devices. We show that the…

High Energy Physics - Phenomenology · Physics 2016-06-24 B. F. L. Ward

Accelerator-based searches for dark matter are aiming for high sensitivity and need an experimental setup with high luminosity. This field of research is often called intensity frontier physics. One of the best motivated portals of…

Accelerator Physics · Physics 2023-01-25 Vasiliy Morozov , Bogdan Wojtsekhowski

In the light of the recent LHC data, we study precision tests sensitive to the violation of lepton universality, in particular the violation of unitarity in neutrino mixing. Keeping all data we find no satisfatory fit, even allowing for…

High Energy Physics - Phenomenology · Physics 2014-05-07 Lorenzo Basso , Oliver Fischer , Jochum J. van der Bij

It is very likely that hadronic scattering will enter a new regime at the LHC, as the black-disk limit is reached. This will lead to a severe change in the t dependence of the real part and of the slope of the elastic scattering amplitude,…

High Energy Physics - Phenomenology · Physics 2009-02-23 J. -R. Cudell , O. V. Selyugin

LHCb is a dedicated detector for b and c physics at the LHC. I will present a concise review of the detector design and expected performance together with some first results on the commissioning of the different sub-systems based on cosmic…

High Energy Physics - Phenomenology · Physics 2014-11-20 Monica Pepe Altarelli

In this paper we propose a strategy for measuring the inclusive W-boson production processes at LHC. This strategy exploits simultaneously the unique flexibility of the LHC collider in running variable beam particle species at variable beam…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. W. Krasny , F. Fayette , W. Placzek , A. Siodmok