Emidio Gabrielli

University of Trieste

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B. Mele

Istituto Nazionale di Fisica Nucleare, Sezione di Roma I

M. Fabbrichesi

Istituto Nazionale di Fisica Nucleare, Sezione di Trieste

Luca Marzola

National Institute of Chemical Physics and Biophysics

M. Raidal

National Institute of Chemical Physics and Biophysics

F. Piccinini

Istituto Nazionale di Fisica Nucleare, Sezione di Pavia

Tania Robens

Rudjer Boskovic Institute

Riccardo Torre

Istituto Nazionale di Fisica Nucleare, Sezione di Genova

Chengcheng Han

Chinese Academy of Medical Sciences & Peking Union Medical College

Zhen Liu

Institute of High Energy Physics

Fabio Maltoni

UCLouvain

Cooperative Institutions

European Organization for Nuclear Research

1,141

Chinese Academy of Sciences

761

Institute of High Energy Physics

662

A. Alikhanyan National Laboratory

531

Centre National de la Recherche Scientifique

439

University of Adelaide

368

University of Chinese Academy of Sciences

367

Institute of High Energy Physics

359

Istituto Nazionale di Fisica Nucleare

275

Institut National de Physique Nucléaire et de Physique des Particules

272

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HE-LHC: The High-Energy Large Hadron Collider

The European Physical Journal Special Topics (2019)

A. Abada M. Abbrescia Shehu AbdusSalam I. M. Abdyukhanov J. Abelleira Fernandez

In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider (FCC-hh), a highest-luminosity high-energy lepton collider (FCC-ee), the corresponding 100 km tunnel infrastructure, as well as the physics opportunities of these two colliders, and a high-energy LHC, based on FCC-hh technology. This document constitutes the third volume of the FCC Conceptual Design Report, devoted to the hadron collider FCC-hh. It summarizes the FCC-hh physics discovery opportunities, presents the FCC-hh accelerator design, performance reach, and staged operation plan, discusses the underlying technologies, the civil engineering and technical infrastructure, and also sketches a possible implementation. Combining ingredients from the Large Hadron Collider (LHC), the high-luminosity LHC upgrade and adding novel technologies and approaches, the FCC-hh design aims at significantly extending the energy frontier to 100 TeV. Its unprecedented centre-of-mass collision energy will make the FCC-hh a unique instrument to explore physics beyond the Standard Model, offering great direct sensitivity to new physics and discoveries.

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10.1140/epjst/e2019-900088-6

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Citations (167)

On the B→Xll decays in general supersymmetric models

Physics Letters B (2002)

Emidio Gabrielli Shaaban Khalil

We analyze the inclusive semileptonic decays B -> X_s l^+ l^- in the framework of the supersymmetric standard model with non-universal soft-breaking terms at GUT scale. We show that the general trend of universal and non-universal models is a decreasing of branching ratio (BR) and increasing of energy asymmetry (AS). However, only non--universal models can have chances to get very large enhancements in BR and AS, corresponding to large (negative) SUSY contributions to the b -> s \gamma amplitude.

10.1016/s0370-2693(02)01350-3

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Testing the $Z\gamma H$ vertex at future linear colliders for intermediate Higgs masses

arXiv (Cornell University) (1997)

Emidio Gabrielli V. Ilyin B. Mele

Higgs production in $e\gamma$ collisions, through the one-loop reaction $e\gamma\to eH$ at large $p_T$, can provide a precise determination of the $Z\gamma H$ vertex.

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Anomalous gamma-gamma-H and Z-gamma-H couplings in the process e,gamma->e,H

arXiv (Cornell University) (1999)

Emidio Gabrielli V. Ilyin B. Mele

The bounds on the anomalous contributions to the ggh and zgh vertices that can be obtained via the process eg->eh are discussed through a model independent analysis based on SU(2) X U(1) invariant operators of dim=6. A light Higgs boson with m_H ~ 120 GeV and center-of-mass energies of \sqrt{S}=500 GeV and \sqrt{S}=1500 GeV are assumed. The process eg->eh is shown to provide an excellent way to strongly constraint both the CP-even and CP-odd anomalous contributions in the ggH and ZgH couplings.

Invariant mass

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Promising Technologies and R&D Directions for the Future Muon Collider Detectors

HAL (Le Centre pour la Communication Scientifique Directe) (2022)

S. Jindariani F. Meloni C. Aimè N. Bartosik E. Barzi

Muon collider

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The decays K+ → e+νeγ and K+ → μ+νμγ, and tensorial couplings in the effective weak hamiltonian

Physics Letters B (1993)

Emidio Gabrielli

Hamiltonian (control theory)

Coupling constant

Weak interaction

10.1016/0370-2693(93)91171-i

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Erratum: Polarization observables for millicharged particles in photon collisions [Phys. Rev. D 94 , 095014 (2016)]

Physical review. D/Physical review. D. (2017)

Emidio Gabrielli Luca Marzola E. Milotti Hardi Veermäe

Received 29 May 2017DOI:https://doi.org/10.1103/PhysRevD.95.119903© 2017 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasQuantum electrodynamicsPhysical SystemsHypothetical particlesParticles & Fields

10.1103/physrevd.95.119903

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Citations (2)

Standard Model Processes at LEP2

arXiv (Cornell University) (1996)

F. Boudjema B. Mele Elena Accomando S. Ambrosanio A. Ballestrero

We present the results obtained by the Standard Model Process group in the CERN Workshop "Physics at LEP2" (1994/95).

10.48550/arxiv.hep-ph/9601224

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Towards a Muon Collider

arXiv (Cornell University) (2023)

C. Accettura Dean Adams Rohit Agarwal C. Ahdida C. Aimè

A muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. The challenges of producing muon collisions at high luminosity and 10 TeV centre of mass energy are being investigated by the recently-formed International Muon Collider Collaboration. This Review summarises the status and the recent advances on muon colliders design, physics and detector studies. The aim is to provide a global perspective of the field and to outline directions for future work.

Muon collider

10.48550/arxiv.2303.08533

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Beyond the Standard Model Physics at the HL-LHC and HE-LHC

arXiv (Cornell University) (2018)

X. Cid Vidal M. DʼOnofrio Patrick J. Fox Riccardo Torre Keith A Ulmer

This is the third out of five chapters of the final report [1] of the Workshop on Physics at HL-LHC, and perspectives on HE-LHC [2]. It is devoted to the study of the potential, in the search for Beyond the Standard Model (BSM) physics, of the High Luminosity (HL) phase of the LHC, defined as $3~\mathrm{ab}^{-1}$ of data taken at a centre-of-mass energy of $14~\mathrm{TeV}$, and of a possible future upgrade, the High Energy (HE) LHC, defined as $15~\mathrm{ab}^{-1}$ of data at a centre-of-mass energy of $27~\mathrm{TeV}$. We consider a large variety of new physics models, both in a simplified model fashion and in a more model-dependent one. A long list of contributions from the theory and experimental (ATLAS, CMS, LHCb) communities have been collected and merged together to give a complete, wide, and consistent view of future prospects for BSM physics at the considered colliders. On top of the usual standard candles, such as supersymmetric simplified models and resonances, considered for the evaluation of future collider potentials, this report contains results on dark matter and dark sectors, long lived particles, leptoquarks, sterile neutrinos, axion-like particles, heavy scalars, vector-like quarks, and more. Particular attention is placed, especially in the study of the HL-LHC prospects, to the detector upgrades, the assessment of the future systematic uncertainties, and new experimental techniques. The general conclusion is that the HL-LHC, on top of allowing to extend the present LHC mass and coupling reach by $20-50\%$ on most new physics scenarios, will also be able to constrain, and potentially discover, new physics that is presently unconstrained. Moreover, compared to the HL-LHC, the reach in most observables will generally more than double at the HE-LHC, which may represent a good candidate future facility for a final test of TeV-scale new physics.

10.48550/arxiv.1812.07831

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Citations (63)