Download or read book NLO QCD Corrections to Higgs Boson Production Plus Three Jets in Gluon Fusion written by Gavin Cullen and published by . This book was released on 2013 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NLO QCD Corrections to Electroweak Higgs Boson Plus Three Jet Production at the LHC written by and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NLO QCD Corrections to Electroweak Higgs Boson Plus Three Jet Production at the LHC written by and published by . This book was released on 2013 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NLO QCD Corrections to Higgs Boson Pair Production in Gluon Fusion written by Juraj Streicher and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phenomenological Analysis of Higgs Boson Production Through Gluon Fusion in Association with Jets written by and published by . This book was released on 2016 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, we present a detailed phenomenological analysis of the production of a Standard Model Higgs boson in association with up to three jets. We consider the gluon fusion channel using an effective theory in the large top-quark mass limit. Higgs boson production in gluon fusion constitutes an irreducible background to the vector boson fusion (VBF) process; hence the precise knowledge of its characteristics is a prerequisite for any measurement in the VBF channel. The calculation is carried out at next-to-leading order (NLO) in QCD in a fully automated way by combining the two programs GoSam and Sherpa. We present numerical results for a large variety of observables for both standard cuts and VBF selection cuts. We find that for all jet multiplicities the NLO corrections are sizeable. This is particularly true in the presence of kinematic selections enhancing the VBF topology, which are based on vetoing additional jet activity. In this case, precise predictions for the background can be made using our calculation by taking the difference between the inclusive H+2 jets and the inclusive H+3 jets result.
Download or read book NLO QCC Corrections to the Jet Activity in Higgs Boson Production Via Vector Boson Fusion written by Terrance Maynard Figy and published by . This book was released on 2006 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Higgs Boson Pair Production Via Gluon Fusion written by Seraina Glaus and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NLO QDC Corrections to Elctroweak Higgs Boson Plus Three Jet Production Ant the LHC written by and published by . This book was released on 2013 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Discovery and Measurement of the Higgs Boson in the WW Decay Channel written by David Hall and published by Springer. This book was released on 2015-06-15 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the stand-alone discovery and measurement of the Higgs boson in its decays to two W bosons using the Run-I ATLAS dataset. This is the most precise measurement of gluon-fusion Higgs boson production and is among the most significant results attained at the LHC. The thesis provides an exceptionally clear exposition on a complicated analysis performed by a large team of researchers. Aspects of the analysis performed by the author are explained in detail; these include new methods for evaluating uncertainties on the jet binning used in the analysis and for estimating the background due to associated production of a W boson and an off-shell photon. The thesis also describes a measurement of the WW cross section, an essential background to Higgs boson production. The primary motivation of the LHC was to prove or disprove the existence of the Higgs boson. In 2012, CERN announced this discovery and the resultant ATLAS publication contained three decay channels: gg, ZZ, and WW.
Download or read book NLO QCD Corrections to Vector Boson Production in Association with Multiple Heavy and Light Jets written by Felix Richard Anger and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Precise theory predictions for scattering processes are an important input for the physics program at the Large Hadron Collider at CERN, Geneva. Notably the complex collider signatures of an electroweak vector boson and many jets that originate in either light partons (light jets) or bottom quarks (b jets) are relevant for both measurements of Standard Model processes as well as searches for new physics. In this thesis, we present new next-to-leading order QCD predictions for two related high-multiplicity processes at the LHC $\sqrt{s} = 13$ TeV. We show predictions for $Wb\bar{b}$ production in association with two and three light jets that we computed for the first time. In order to obtain the required one-loop amplitudes, we implement the numerical unitarity approach for massive particles in a new version of the BlackHat library. To this end, we devise and apply a new algorithm for the evaluation of D-dimensional unitarity cuts. It builds on a consistent embedding of external fermions states in dimensional regularization and reduces the computational complexity of our calculations. Furthermore, we present next-to-leading order QCD predictions for $V+n$-jet production in association with up to $n = 5$ light jets for $V = W^\pm$ and with up to $n = 4$ light jets for $V = Z$, which we extend to the higher center-of-mass energy of the Large Hadron Collider Run-II. For these processes we compare results obtained with fixed-order scales such as $\hat{H}_T^'/2$ with the MiNLO reweighting procedure
Download or read book The Higgs Hunter s Guide written by John F. Gunion and published by CRC Press. This book was released on 2018-03-05 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Higgs Hunter's Guide is a definitive and comprehensive guide to the physics of Higgs bosons. In particular, it discusses the extended Higgs sectors required by those recent theoretical approaches that go beyond the Standard Model, including supersymmetry and superstring-inspired models.
Download or read book Next to next to leading Order QCD Corrections to Higgs Boson Production in Association with Two Jets in Vector Boson Fusion written by Juan Manuel Cruz-Martinez and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Higgs Production Via Gluon Fusion in Association with Two Or Three Jets in Supersymmetric Models written by Michael Kubocz and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Higgs Boson Production Cross Sections in the Diphoton Channel written by Ahmed Tarek Abouelfadl Mohamed and published by Springer Nature. This book was released on 2020-11-12 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the measurement of the Higgs boson cross section in the diphoton decay channel. The measurement relies on proton-proton collision data at a center-of-mass energy √s = 13 TeV recorded by the ATLAS experiment at the Large Hadron Collider (LHC). The collected data correspond to the full Run-2 dataset with an integrated luminosity of 139 fb-1. The measured cross sections are used to constrain anomalous Higgs boson interactions in the Effective Field Theory (EFT) framework. The results presented in this thesis represent a reduction by a factor 2 of the different photon and jet energy scale and resolution systematic uncertainties with respect to the previous ATLAS publication. The thesis details the calibration of electron and photon energies in ATLAS, in particular the measurement of the presampler energy scale and the estimation of its systematic uncertainty. This calibration was used to perform a measurement of the Higgs boson mass in the H → γγ and H → 4l channels using the 36 fb−1 dataset.
Download or read book NLO QCD Corrections to ZZ Jet Production at Hadron Colliders written by and published by . This book was released on 2010 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fully differential calculation of the next-to-leading order QCD corrections to the production of Z-boson pairs in association with a hard jet at the Tevatron and LHC is presented. This process is an important background for Higgs particle and new physics searches at hadron colliders. We find sizable corrections for cross sections and differential distributions, particularly at the LHC. Residual scale uncertainties are typically at the 10% level and can be further reduced by applying a veto against the emission of a second hard jet. Our results confirm that NLO corrections do not simply rescale LO predictions.
Download or read book Signal and Background in NLO QCD for the Search of the Intermediate Mass Higgs Boson at the SSC written by and published by . This book was released on 1993 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The signal and background for the search of the Standard Model Higgs boson in the intermediate mass range 80 GeV m{sub H} 2M{sub Z} is studied based on calculations of the cross sections in next-to-leading order QCD perturbation theory for the production of the Higgs boson via gluon-gluon fusion and for the hadronic two-photon production. The method of Monte-Carlo integration allows the application of realistic cuts (p{sub T}, rapidity, photon isolation) to the cross section. Results are given for the K-factors of the signal and the background. It turns out that the NLO corrections improve the situation for a Higgs boson mass in the range of 80--120 GeV. Furthermore, the influence of a cut on the transverse momentum of the additional jet produced in the processes gg -- Hg, gq -- Hq, q{bar q} --> Hg is compared to a similar cut for the background.
Download or read book Beyond the T channel Approximation written by and published by . This book was released on 2014 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
