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We discuss results of the CMS collaboration on the sensitivity of the LHC to $W$ boson polarisation in the process $pp\to W^\pm + jet \to e^\pm jet+\not\!\!P_T$ using the $L_P$ variable directly connected to $\theta^*$ angle of the outgoing…

高能物理 - 唯象学 · 物理学 2015-06-15 Alexander Belyaev , Douglas Ross

This paper employs the $H+b+\text{jets}$ signature in proton-proton collisions to explore the structure of the $Hb\bar{b}$ couplings.The focus of the analysis lies in the decay of the Higgs boson into a photon pair, taking into account both…

高能物理 - 唯象学 · 物理学 2024-05-28 Zahra Abdy , Mojtaba Mohammadi Najafabadi

We investigate the phenomenology of a dark QCD sector interacting with the Standard Model (SM) via the electroweak (EW) portals. The portal interactions allow SM bosons, such as $Z$ and $h$, or additional bosons that mix with them, to decay…

高能物理 - 唯象学 · 物理学 2025-03-25 Hsin-Chia Cheng , Xu-Hui Jiang , Lingfeng Li

We have previously introduced a hybrid strong/weak coupling model for jet quenching in heavy ion collisions that describes the production and fragmentation of jets at weak coupling, using PYTHIA, and describes the rate at which each parton…

高能物理 - 唯象学 · 物理学 2016-04-20 Jorge Casalderrey-Solana , Doga Can Gulhan , José Guilherme Milhano , Daniel Pablos , Krishna Rajagopal

The jet mass of W bosons decaying to a quark-antiquark pair is measured in W+jets events from proton-proton collisions at a center-of-mass energy of 13 TeV. The data used were collected by the CMS experiment at the CERN LHC and correspond…

高能物理 - 实验 · 物理学 2026-03-23 CMS Collaboration

Flavour changing neutral currents are only allowed via loop diagrams in the Standard Model (SM). Electroweak penguin processes are therefore sensitive probes for new physics, as physics beyond the Standard Model can enter via virtual…

高能物理 - 实验 · 物理学 2013-01-01 Michel De Cian

The four LEP experiments and the SLD detector have measured the Z partial widths for Z decays into b and c quarks and the corresponding forward-backward asymmetries at centre-of-mass energies close to the Z boson mass. The results yield a…

高能物理 - 实验 · 物理学 2019-08-14 Wolfgang Liebig

We present here a study on the determination of the effective weak mixing angle, $\sin^{2}\theta^{lept}_{eff}$ from the measurement of the Forward-Backward Asymmetry with a high a statistical precision, 10$^{-4}$. To reach such a precision…

高能物理 - 实验 · 物理学 2009-06-12 Mohamed Aharrouche

In this talk we discuss the next-to-leading-order electroweak (EW) corrections to W-boson + jet hadroproduction [1] and compare the full result to a simple approximation assuming factorization of EW and QCD corrections for the…

高能物理 - 唯象学 · 物理学 2010-01-15 Ansgar Denner , Stefan Dittmaier , Tobias Kasprzik , Alexander Mück

This note presents a combination of published and preliminary electroweak results from the four LEP collaborations ALEPH, DELPHI, L3 and OPAL based on electron-positron collision data taken at centre-of-mass energies above the Z-pole, $130…

Jet physics provides a powerful tool to investigate interaction properties of quarks and gluons. These studies have been possible at an energy never investigated before at LHC. In this proceedings we review the main characteristics of…

高能物理 - 实验 · 物理学 2016-08-02 Murilo Rangel

The internal structure of jets produced in pp collisions at the LHC is measured using the ATLAS detector in an inclusive jet sample corresponding to 35pb-1 of pp collisions at sqrt(s) = 7 TeV. Classical jet shape and energy flow…

高能物理 - 实验 · 物理学 2019-08-13 David W. Miller

Simultaneously with the turning-on of the Large Hadron Collider (LHC) the data taking for jet production rates will start. The study of these production rates is an important test of the Standard Model in the new energy regime accessible at…

高能物理 - 唯象学 · 物理学 2009-10-02 Andreas Scharf

We investigate the effects of combining next-to-leading order QCD results with parton-shower effects in $W^+W^-jj$ production via vector-boson fusion including leptonic decays. Using the Herwig 7 framework interfaced to VBFNLO 3, we compare…

高能物理 - 唯象学 · 物理学 2016-07-04 Michael Rauch , Simon Plätzer

In this work we present the implementation of generators for W and Z bosons in association with two jets interfaced to parton showers using the POWHEG BOX. We incorporate matrix elements from the parton-level Monte Carlo program MCFM in the…

高能物理 - 唯象学 · 物理学 2015-06-15 John M. Campbell , R. Keith Ellis , Paolo Nason , Giulia Zanderighi

This review covers results at a centre-of-mass energy of $\sqrt{s}=13$ TeV from the ATLAS experiment that have been published, or submitted for publication, up to April 2020. It summarizes results on the inclusive production cross-section…

高能物理 - 实验 · 物理学 2020-06-16 Yee Chinn Yap

The subtraction method for the matching between the matrix element (ME) and parton shower (PS), that has been developed for combining 0-jet and 1-jet production processes in association with electroweak-boson production in hadron…

高能物理 - 唯象学 · 物理学 2016-06-21 Shigeru Odaka , Norihisa Watanabe , Yoshimasa Kurihara

We first describe the predictions concerning jet production in the very forward region, especially in the FOCAL kinematic region of the ALICE collaboration at CERN as a test of saturation. We also compare vector meson production cross…

高能物理 - 唯象学 · 物理学 2025-03-28 C. Royon , J. Penttala

We discuss the necessary steps for implementing an angularly ordered (AO) electroweak (EW) parton shower in Herwig 7 multi-purpose event generator. This includes calculating the helicity-dependent quasi-collinear EW branching functions that…

高能物理 - 唯象学 · 物理学 2022-04-26 M. R. Masouminia , P. Richardson

From the LHC runs we know that, with increasing collider energy, weak-boson-fusion Higgs production dominates as an environment for precision measurements. We show how a future hadron collider performs for three challenging benchmark…

高能物理 - 唯象学 · 物理学 2017-05-24 Dorival Goncalves , Tilman Plehn , Jennifer M. Thompson