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We present an analysis of new physics searches in $Z\,h$ with missing energy final states at the Large Hadron Collider considering $Z \to l^+ l^-$ (where $l^\pm = e^\pm, \mu^\pm$) and $h \to b\bar b$ decay modes. For this analysis we…

High Energy Physics - Phenomenology · Physics 2017-03-02 Skhathisomusa Mthembu , Shell May Liao , Tshidiso Molupe , Bruce Mellado , Deepak Kar

We study the sources of systematic errors in the measurement of the Z to ll cross-sections at the LHC. We consider the systematic errors in both the total cross-section and acceptance for anticipated experimental cuts. We include the best…

High Energy Physics - Phenomenology · Physics 2011-03-23 Nadia E. Adam , Valerie Halyo , Scott A. Yost

Cascade decays of new scalars into final states with multiple photons and possibly quarks may lead to distinctive experimental signatures at high-energy colliders. Such signals are even more striking if the scalars are highly boosted, as…

High Energy Physics - Phenomenology · Physics 2020-06-24 J. A. Aguilar-Saavedra , F. R. Joaquim

Production of the leptophilic Z' boson at future colliders was proposed as one of the benchmark Beyond the Standard Model (BSM) scenarios for the Physics Briefing Book prepared for the 2026 update of the European Strategy for Particle…

High Energy Physics - Experiment · Physics 2026-03-19 Aleksander Filip Żarnecki

This study investigates the potential of the TESLA Linear Collider for measuring resonance parameters of Higgs bosons beyond the mass range studied so far. The analysis is based on the reconstruction of events from the Higgsstrahlung…

High Energy Physics - Phenomenology · Physics 2007-05-23 Niels Meyer

We consider the associated production of a scalar resonance with the standard model Higgs boson. We demonstrate via a realistic phenomenological analysis that couplings of such a resonance to the Higgs boson can be constrained in a…

High Energy Physics - Phenomenology · Physics 2017-08-24 Adrian Carmona , Florian Goertz , Andreas Papaefstathiou

The CMS collaboration has recently produced results of a number of searches for new physics processes using data collected during the 2011 run of the Large Hadron Collider. Up to 5 inverse femtobarns of proton-proton collisions at 7 TeV…

High Energy Physics - Experiment · Physics 2019-08-13 Tommaso Dorigo

Feasibility of a measurement of the partial decay width of the intermediate-mass Higgs boson into two photons at a photon-photon collider is studied by a simulation. The QCD radiative correction for quark pair background processes is taken…

High Energy Physics - Phenomenology · Physics 2014-11-17 T. Ohgaki , T. Takahashi , I. Watanabe

We present the analytic calculation of the two-loop QCD corrections to the decay width of a Higgs boson into a photon and a $Z$ boson. The calculation is carried out using integration-by-parts identities for the reduction to master…

High Energy Physics - Phenomenology · Physics 2015-09-30 R. Bonciani , V. Del Duca , H. Frellesvig , J. M. Henn , F. Moriello , V. A. Smirnov

The discovery of the Higgs boson, with mass known to better than the percent level, enables for the first time precision Higgs boson analyses. Toward this goal, we define an expansion formalism of the Higgs boson partial widths and…

High Energy Physics - Phenomenology · Physics 2014-03-25 Leandro G. Almeida , Seung J. Lee , Stefan Pokorski , James D. Wells

We calculate in perturbative QCD the transverse momentum broadening of vector bosons in heavy ion collisions at the Large Hadron Collider (LHC). We predict transverse momentum broadening of $W/Z$ bosons constructed from their leptonic decay…

High Energy Physics - Phenomenology · Physics 2007-07-03 Zhong-Bo Kang , Jian-Wei Qiu

I give an overview of the theory status of predictions for single W and Z boson production at hadron colliders. I briefly report on work in progress for improvements necessary to match the anticipated high precision of electroweak…

High Energy Physics - Phenomenology · Physics 2007-05-23 Doreen Wackeroth

We present the most recent precision electroweak measurements of single $W$ and $Z$ boson cross section and properties from the LHC and Tevatron colliders, analyzing data collected by ATLAS, CDF, CMS, D0, and LHCb detectors. The results…

High Energy Physics - Experiment · Physics 2015-06-18 Hang Yin

We demonstrate that a measurement of the Bjorken process $e^+e^-, \mu^+\mu^-\to ZH$ in the threshold region can yield a precise determination of the Higgs boson mass. With an integrated luminosity of $100 fb^{-1}$, it is possible to measure…

High Energy Physics - Phenomenology · Physics 2009-08-17 V. Barger , M. S. Berger , J. F. Gunion , T. Han

The process ee-->ZH allows to measure the Higgs boson in the recoil mass spectrum against the Z boson without any assumptions on the Higgs boson decay. We performed a full simulation and reconstruction of ee-->ZH using the MOKKA and MARLIN…

High Energy Physics - Experiment · Physics 2009-02-16 W. Lohmann , M. Ohlerich , A. Raspereza , A. Schälicke

The precise measurement of the Higgs mass is the most important program at International Linear Collider (ILC). Using e+e- -> ZH process, the mass of Higgs boson can be measured by two lepton tracks from decay of Z boson, even if the Higgs…

High Energy Physics - Phenomenology · Physics 2009-02-19 Kazutoshi Ito

Photon-photon interactions represent an important class of physics processes at the LHC, where quasi-real photons are emitted by both colliding protons. These reactions can result in the exclusive production of a final state $X$, $p+p…

High Energy Physics - Phenomenology · Physics 2018-05-09 Mateusz Dyndal , Laurent Schoeffel

We propose a new method to measure various physical parameters, using characteristic weight functions. This method requires only lepton energy distribution and ideally it does not depend on the velocity of the parent particle. We…

High Energy Physics - Phenomenology · Physics 2013-09-11 S. Kawabata , Y. Shimizu , Y. Sumino , H. Yokoya

This is a personal summary of points made during, and arising from the symposium, drawing largely from the talks presented there. The Standard Model is doing fine, including QCD, the electroweak sector and flavour physics. The good news is…

High Energy Physics - Phenomenology · Physics 2015-06-17 John Ellis

This report summarizes the progress in the study of Higgs physics at a future linear electron positron collider at center-of-mass energies up to about 1000 GeV and high luminosity. After the publication of the TESLA Technical Design Report,…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. Desch
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