Search For A Higgs Boson Decaying Into A Z And A Photon In Pp Collisions At Sqrt S

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Lepton Photon Interactions At High Energies Lepton Photon 2017 Proceedings Of The 28th International Symposium

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Author : Wei Wang
language : en
Publisher: World Scientific
Release Date : 2020-02-27

Lepton Photon Interactions At High Energies Lepton Photon 2017 Proceedings Of The 28th International Symposium written by Wei Wang and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-27 with Science categories.

The latest of the 'Lepton Photon' symposium, one of the well-established series of meetings in the high-energy physics community, was successfully organized at the South Campus of Sun Yat-sen University, Guangzhou, China, from August 7-12, 2017, where physicists around the world gathered to discuss the latest advancements in the research field.This proceedings volume of the Lepton Photon 2017 collects contributions by the plenary session speakers and the posters' presenters, which cover the latest results in particle physics, nuclear physics, astrophysics, cosmology, and plans for future facilities.

Search For A Higgs Boson Decaying Into A Z And A Photon In Pp Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2013

Search For A Higgs Boson Decaying Into A Z And A Photon In Pp Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.

Physics With Photons Using The Atlas Run 2 Data

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Author : Stefano Manzoni
language : en
Publisher: Springer
Release Date : 2019-08-02

Physics With Photons Using The Atlas Run 2 Data written by Stefano Manzoni and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-08-02 with Science categories.

The work presented in this book is based on the proton-proton collision data from the Large Hadron Collider at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector in 2015 and 2016. The research program of the ATLAS experiment includes the precise measurement of the parameters of the Standard Model, and the search for signals of physics beyond the SM. Both these approaches are pursued in this thesis, which presents two different analyses: the measurement of the Higgs boson mass in the di-photon decay channel, and the search for production of supersymmetric particles (gluinos, squarks or winos) in a final state containing two photons and missing transverse momentum. Finally, ATLAS detector performance studies, which are key ingredients for the two analyses outlined before, are also carried out and described.

American Doctoral Dissertations

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Author :
language : en
Publisher:
Release Date : 1993

American Doctoral Dissertations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Dissertation abstracts categories.

Search For A Higgs Boson Decaying Into Gamma Gamma To Ell Ell Gamma With Low Dilepton Mass In Pp Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2015

Search For A Higgs Boson Decaying Into Gamma Gamma To Ell Ell Gamma With Low Dilepton Mass In Pp Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.

Our search is described for a Higgs boson decaying into two photons, one of which has an internal conversion to a muon or an electron pair (ll[gamma]). The analysis is performed using proton-proton collision data recorded with the CMS detector at the LHC at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb-1. The events selected have an opposite-sign muon or electron pair and a high transverse momentum photon. No excess above background has been found in the three-body invariant mass range 120

Search For The Decay Of The Higgs Boson To A Z Boson And A Long Lived Axion Like Particle Decaying To Two Photons With The Atlas Detector

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Author : Georgios Lamprinoudis
language : en
Publisher:
Release Date : 2025

Search For The Decay Of The Higgs Boson To A Z Boson And A Long Lived Axion Like Particle Decaying To Two Photons With The Atlas Detector written by Georgios Lamprinoudis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025 with categories.

The Standard Model of particle physics is one of the most successful theories, capable of describing a wide range of observed physical processes. However, some phenomena cannot be explained within the Standard Model, necessitating a theoretical extension. The Large Hadron Collider (LHC) at CERN aids in this effort through precision tests and searches for Beyond Standard Model particles using dedicated analyses. Several well-motivated extensions of the Standard Model include Axion-Like Particles (ALPs), which can couple to photons. This thesis presents two searches for ALPs. The first search, described in the thesis, uses ATLAS Run 2 proton-proton (pp) data to constrain the exotic decay of the Higgs boson into a Z boson and an ALP, leading to a final state of two leptons and two photons. This measurement focuses on long-lived ALPs, which do not decay promptly, extending the excluded photon-ALP coupling phase space and providing limits for a range of couplings not previously covered by ATLAS. The second search, described in the thesis, utilizes ATLAS Run 3 lead-lead (PbPb) data to probe the resonant production of an ALP in photon-photon scattering within the ATLAS detector. This is the first ALP measurement in ATLAS at a collision energy of $$ sqrts} = 5.36$$ TeV.

Search For A Higgs Boson Decaying Into Gamma Gamma To Ell Ell Gamma With Low Dilepton Mass In Pp Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2015

Search For A Higgs Boson Decaying Into Gamma Gamma To Ell Ell Gamma With Low Dilepton Mass In Pp Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.

Our search is described for a Higgs boson decaying into two photons, one of which has an internal conversion to a muon or an electron pair (ll?). The analysis is performed using proton–proton collision data recorded with the CMS detector at the LHC at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb-1. The events selected have an opposite-sign muon or electron pair and a high transverse momentum photon. No excess above background has been found in the three-body invariant mass range 120 mll? 150 GeV, and limits have been derived for the Higgs boson production cross section times branching fraction for the decay H → ?*? → ll?, where the dilepton invariant mass is less than 20 GeV. A Higgs boson with mH=125 GeV has a 95% confidence level (CL) exclusion observed (expected) limit is 6.7 (5.9sup+2.8/supsub-1.8/sub ) times the standard model prediction. Additionally, an upper limit at 95% CL on the branching fraction of H → (J/?)? for the 125 GeV Higgs boson is set at 1.5 × 10

Index To American Doctoral Dissertations

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Author :
language : en
Publisher:
Release Date : 1989

Index To American Doctoral Dissertations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Dissertations, Academic categories.

Search For A Light Charged Higgs Boson Decaying To Mathrm C Bar S In Pp Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2015

Search For A Light Charged Higgs Boson Decaying To Mathrm C Bar S In Pp Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.

Search For A Cp Odd Higgs Boson Decaying To Z H In Pp Collisions At Square Root S

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Author : Hannah Arnold
language : en
Publisher:
Release Date : 2018

Search For A Cp Odd Higgs Boson Decaying To Z H In Pp Collisions At Square Root S written by Hannah Arnold and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.