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Your search keyword '"Royon, Christophe"' showing total 14 results
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14 results on '"Royon, Christophe"'

1. Diffraction and photon exchange processes at the LHC and parton saturation.

Author

Royon, Christophe and Baldenegro, Cristian

Subjects
*QUANTUM chromodynamics, *LARGE Hadron Collider, *PHOTONS, *ANTIPROTONS, *GLUONS, *DEGREES of freedom, *QUARKS
Abstract

We present a review of the recent theoretical and experimental developments related to the field of diffraction, parton saturation, and forward physics. We first discuss our present understanding of the proton structure in terms of quarks and gluons, the degrees of freedom of quantum chromodynamics. We then focus on some of the main results on diffraction at the HERA electron–proton collider in DESY, Germany, at the Tevatron proton–antiproton collider at Fermilab, Batavia, US, and at the CERN Large Hadron Collider (LHC) proton–proton and nucleus–nucleus collider, which is located in Geneva, Switzerland. We also present a selected amount of results on diffraction and photon exchanges that can be done at the LHC experiments and at a future Electron Ion Collider (EIC) to be built in the US at Brookhaven National Laboratory, New York. [ABSTRACT FROM AUTHOR]

Published
2020
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2. Exclusive diffractive results from ATLAS, CMS, LHCb, TOTEM at the LHC.

Author

Royon, Christophe

Subjects
*LARGE Hadron Collider, *COMPACT muon solenoid experiment, *SPECIAL relativity experiments, *NUCLEAR physics experiments, *DIFFRACTION of nuclear particles
Abstract

In this report, we describe the most recent on exclusive diffraction from the ATLAS, CMS, LHCb, TOTEM experiments at the LHC. [ABSTRACT FROM AUTHOR]

Published
2018
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3. Pomeron Physics at the LHC.

Author

Deganutti, Federico, Gomez, David Gordo, Raben, Timothy, and Royon, Christophe

Subjects
POMERONS, LARGE Hadron Collider, QUANTUM chromodynamics, QUANTUM electrodynamics, PARTICLES (Nuclear physics)
Abstract

We present current and ongoing research aimed at identifying Pomeron effects at the LHC in both the weak and strongly coupled regimes of QCD. [ABSTRACT FROM AUTHOR]

Published
2018
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4. Anomalous coupling studies at the LHC with proton tagging.

Author

Royon, Christophe and Saimpert, Matthias

Subjects
*PROTONS, *BOSONS, *LARGE Hadron Collider, *STANDARD model (Nuclear physics), *QUARTIC equations
Abstract

We present the photon induced processes leading to intact protons at the final state that can be studied at the LHC. We give the cross section predicted by the standard model for W and photon pair production. The study of these processes lead to unprecedented sensitivities on quartic anomalous couplings between photons and W, Z bosons, reaching the values expected for extra dimension models. [ABSTRACT FROM AUTHOR]

Published
2015
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5. Probing the BFKL dynamics at hadronic colliders.

Author

Royon, Christophe

Subjects
*HADRON colliders, *JETS (Nuclear physics), *LARGE Hadron Collider, *QUANTUM chromodynamics, *BAND gaps
Abstract

We describe different possibilities to probe the BFKL dynamics at hadronic colliders, namely Mueller-Navelet jet, and jet-gap-jet events. We also discuss briefly the jet veto measurement as performed by the ATLAS collaboration at the LHC. [ABSTRACT FROM AUTHOR]

Published
2015
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6. Forward physics using proton tagging at the LHC.

Author

Royon, Christophe

Subjects
*LARGE Hadron Collider, *PHYSICS research, *POMERONS, *COUPLING constants, *QUARKS, *GLUONS
Abstract

We describe different physics topics that can be performed at the LHC using tagged intact protons leading to a better understanding of the Pomeron structure in terms of quarks and gluons and to unprecedented sensitivities to quartic anomalous couplings between γ and W/Z bosons. [ABSTRACT FROM AUTHOR]

Published
2015
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7. Exploring the Pomeron structure at the LHC.

Author

Royon, Christophe and Saimpert, Matthias

Subjects
*POMERONS, *LARGE Hadron Collider, *ATLAS (Computer program language), *PARTICLE physics, *QUARKS
Abstract

We present some physics topics that will allow us to constrain the Pomeron structure at the LHC in terms of gluon and quark densities using the dijet and γ+ events and tagged protons in AFP (ATLAS) and CMS-TOTEM. We also discuss the possibility to test the BFKL dynamics using jet-gap-jet events. [ABSTRACT FROM AUTHOR]

Published
2015
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8. Forward physics at the LHC.

Author

Royon, Christophe

Subjects
*LARGE Hadron Collider, *DIFFRACTIVE scattering, *PARTICLE physics, *QUANTUM electrodynamics, *PHOTON scattering
Abstract

We present possible measurements on forward physics and diffraction that can be accomplished at the LHC. [ABSTRACT FROM AUTHOR]

Published
2015
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9. Gap between jets at the LHC.

Author

Royon, Christophe

Subjects
*BAND gaps, *JETS (Fluid dynamics), *NUCLEAR energy, *PROTONS, *LARGE Hadron Collider, *NUCLEAR cross sections
Abstract

We describe a NLL BFKL calculation implemented in the HERWIG MC of the gap between jets cross section, that represent a test of BFKL dynamics. We compare the predictions with recent measurements at the Tevatron and present predictions for the LHC. We also discuss the interesting process of looking for gap between jets in diffractive events when protons are detected in the ATLAS Forward Physics (AFP) detectors. [ABSTRACT FROM AUTHOR]

Published
2013
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11. Anomalous quartic and triple gauge couplings in γ-induced processes at the LHC.

Author

Royon, Christophe, Chapon, Emilien, and Kepka, Oldrˇich

Subjects
*QUARTIC equations, *LARGE Hadron Collider, *STANDARD model (Nuclear physics), *LEPTONS (Nuclear physics), *PARTICLE decays, *HIGGS bosons, *PHOTONS, *PARTICLES (Nuclear physics), *NUCLEAR physics
Abstract

We study the W/Z pair production via two-photon exchange at the LHC and give the sensitivities on trilinear and quartic gauge anomalous couplings between photons and W/Z bosons for an integrated luminosity of 30 and 200 fb-1. For simplicity and to obtain lower backgrounds, only the leptonic decays of the electroweak bosons are considered. The intact protons in the final states are detected in the ATLAS Forward Proton detectors. The high energy and luminosity of the LHC and the forward detectors allow to probe beyond standard model physics and to test the Higgsless and extra dimension models in an unprecedent way. [ABSTRACT FROM AUTHOR]

Published
2011
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12. Results on diffraction from the D0 collaboration.

Author

Royon, Christophe

Subjects
*DIFFRACTIVE scattering, *NUCLEAR cross sections, *NUCLEAR counters, *LARGE Hadron Collider, *HIGGS bosons, *SCATTERING (Physics), *PARTICLES (Nuclear physics), *NUCLEAR physics
Abstract

We discuss the most recent results on diffraction from the D0 collaboration, the search for exclusive events in the jet channel at high dijet mass and the measurement of the elastic cross section using the Forward Proton Detector. [ABSTRACT FROM AUTHOR]

Published
2011
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13. DIFFRACTION AT HERA, TEVATRON AND LHC.

Author

ROYON, CHRISTOPHE

Subjects
*DIFFRACTION of nuclear particles, *LARGE Hadron Collider, *OPTICAL diffraction, *DETECTORS, *NUCLEAR physics
Abstract

In this short review, we describe some of the results on diffraction from the Tevatron and give some prospects for the LHC. In particular, we discuss the search for exclusive events at the Tevatron and their importance for the LHC program. We finish by presenting the project of installing forward detectors in the ATLAS Collaboration at 220 and 420 m. [ABSTRACT FROM AUTHOR]

Published
2009

14. Electroweak vector boson production at the LHC as a probe of mechanisms of diffraction.

Author

Golec-Biernat, Krzysztof, Royon, Christophe, Schoeffel, Laurent, and Staszewski, Rafal

Subjects
*ELECTROWEAK interactions, *BOSONS, *PROTON-proton interactions, *LARGE Hadron Collider, *FLAVOR in particle physics, *COLLISIONS (Nuclear physics)
Abstract

We show that the double diffractive electroweak vector boson production in the pp collisions at the LHC is an ideal probe of QCD based mechanisms of diffraction. Assuming the resolved Pomeron model with flavor symmetric parton distributions, the W production asymmetry in rapidity equals exactly zero. In other approaches, like the soft color interaction model, in which soft gluon exchanges are responsible for diffraction, the asymmetry is nonzero and equal to that in the inclusive W production. In the same way, the ratio of the W to Z boson production is independent of rapidity in the models with resolved Pomeron in contrast to the predictions of the soft color interaction model. [ABSTRACT FROM AUTHOR]

Published
2011
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