Results 41 to 50 of about 110,030 (259)

Measurement of VH, H → b b ¯ $$ \mathrm{H}\to \mathrm{b}\overline{\mathrm{b}} $$ production as a function of the vector-boson transverse momentum in 13 TeV pp collisions with the ATLAS detector

open access: yesJournal of High Energy Physics, 2019
Cross-sections of associated production of a Higgs boson decaying into bottomquark pairs and an electroweak gauge boson, W or Z, decaying into leptons are measured as a function of the gauge boson transverse momentum.
The ATLAS collaboration   +2927 more
doaj   +1 more source

W boson mass tension caused by its right-handed gauge coupling at high energies?

open access: yesNuclear Physics B, 2022
The CDF collaboration's recent high-precision measurement of the W mass is in 7.0σ disagreement with the Standard Model expectation. This tension will be relieved if the W boson has a non-trivial right-handed gauge coupling at high energies.
She-Sheng Xue
doaj   +1 more source

A 125GeV Higgs Boson and Muon g-2 in More Generic Gauge Mediation

open access: yes, 2012
Recently, the ATLAS and CMS collaborations reported exciting hints of a Standard Model-like Higgs boson with a mass around 125GeV. A Higgs boson this heavy is difficult to realize in conventional models of gauge mediation.
G. F. Giudice   +6 more
core   +1 more source

Weakly coupled neutral gauge bosons at future linear colliders [PDF]

open access: yes, 2004
A weakly coupled new neutral gauge boson forms a narrow resonance that is hard to discover directly in e+e- collisions. However, if the gauge boson mass is below the center-of-mass energy, it can be produced through processes where the effective energy ...
A. Blondel   +19 more
core   +1 more source

On search for new Higgs physics in CDF at the Tevatron [PDF]

open access: yes, 2002
We discuss the Higgs boson mass sum rules in the Minimal Supersymmetric Standard Model in order to estimate the upper limits on the masses of stop quarks as well as the lower bounds on the masses of the scalar Higgs boson state.
A. Dedes   +32 more
core   +3 more sources

ANOMALOUS GAUGE BOSON INTERACTIONS [PDF]

open access: yes, 1997
We discuss the direct measurement of the trilinear vector boson couplings in present and future collider experiments. The major goals of such experiments will be the confirmation of the Standard Model (SM) predictions and the search for signals of new physics.
Aihara, H.   +11 more
openaire   +4 more sources

Mixing particle production for relaxion mechanism

open access: yesJournal of High Energy Physics, 2022
We consider the production of two heavy gauge bosons as a relaxation stopping mechanism. In this work, we analyse the conditions for a tachyonic mode for a linear combination of gauge bosons and show that the criteria are significantly different than the
Tanech Klangburam   +4 more
doaj   +1 more source

Self-couplings of gauge bosons in 3-3-1 models

open access: yesTạp chí Khoa học, 2023
In this work, we will present detailed calculations to derive the exact formulas of the triple and quartic self-couplings of all gauge bosons predicted by the general 3-3-1 model with an arbitrary parameter β used to classify different 3-3-1 models.
Le Tho Hue   +3 more
doaj   +1 more source

High‐Precision Measurement of Time Delay with Frequency‐Resolved Hong‐Ou‐Mandel Interference of Weak Coherent States

open access: yesAdvanced Quantum Technologies, EarlyView.
High‐precision time‐delay measurements are demonstrated using frequency‐resolved Hong‐Ou Mandel (HOM) interference with weak coherent states. The method, by exploiting the quantum eraser phenomenon, achieves low uncertainty even for delays exceeding the photon coherence time, where traditional HOM interferometry fails, thus confirming theoretical ...
Francesco Di Lena   +9 more
wiley   +1 more source

NLO QCD+EW corrections to diphoton production in association with a vector boson

open access: yesJournal of High Energy Physics, 2018
Processes with three external electroweak gauge boson allow for a measurement of triple and quartic gauge couplings. They can be used to constrain anomalous gauge couplings, where new physics might predominantly couple to electroweak gauge bosons.
Nicolas Greiner, Marek Schönherr
doaj   +1 more source

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