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A measurement of the mass of the Higgs boson combining the $H\to ZZ^{*} \to 4\ell$ and $H\to\gamma\gamma$ decay channels is presented. The result is based on 140 fb$^{-1}$ of proton-proton collision data collected by the ATLAS detector…

高能物理 - 实验 · 物理学 2024-01-23 The ATLAS Collaboration

Measurements of fiducial and differential cross sections are presented for Higgs boson production in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=8$ TeV. The analysis is performed in the $H \rightarrow \gamma\gamma$…

高能物理 - 实验 · 物理学 2014-10-10 ATLAS Collaboration

Measurements of the off-shell Higgs boson production cross section in gg (--> h*) --> ZZ have recently been used by the CMS and ATLAS collaborations to indirectly constrain the total width of the Higgs boson. I point out that the…

高能物理 - 唯象学 · 物理学 2015-11-04 Heather E. Logan

In supersymmetric models with minimal particle content and without left-right squark mixing, the conventional wisdom is that the 125.6 GeV Higgs boson mass implies top squark masses of O(10) TeV, far beyond the reach of colliders. This…

高能物理 - 唯象学 · 物理学 2013-10-02 Jonathan L. Feng , Philipp Kant , Stefano Profumo , David Sanford

The detection and the measurement of the production cross section of a light Higgs boson at the CERN Large Hadron Collider demand the accurate prediction of the background distributions of photon pairs. To improve this theoretical…

高能物理 - 唯象学 · 物理学 2008-11-26 C. Balazs , P. Nadolsky , C. Schmidt , C. -P. Yuan

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…

高能物理 - 实验 · 物理学 2009-02-16 W. Lohmann , M. Ohlerich , A. Raspereza , A. Schälicke

A detailed five-dimensional calculation of the Higgs-boson decay into two photons is performed in both the minimal and the custodially protected Randall-Sundrum (RS) model, where the Standard Model (SM) fields propagate in the bulk and the…

高能物理 - 唯象学 · 物理学 2015-06-18 Juliane Hahn , Clara Hörner , Raoul Malm , Matthias Neubert , Kristiane Novotny , Christoph Schmell

We have examined how a Standard Model or Supersymmetric Higgs boson h might be detected at possible hadron colliders. The channels W(to ell nu)h(to b b~), Z(to ell ell~)h(to b b~) and W/Z(to jets)h(to tau+ tau-) are most useful. The results…

高能物理 - 唯象学 · 物理学 2016-09-01 Stephen Mrenna , G. L. Kane

Recent searches by the CMS collaboration at the Large Hadron Collider (LHC) in the `diphoton plus $b\bar{b}$ final state' have revealed an excess near 650 GeV, which might indicate the presence of a (broad) heavy resonance decaying into a…

高能物理 - 唯象学 · 物理学 2025-07-01 Rachid Benbrik , Mohammed Boukidi , Khouloud Kahime , Stefano Moretti , Larbi Rahili , Bassim Taki

The investigation of the properties of the Higgs boson, especially a test of the predicted linear dependence of the branching ratios on the mass of the final state is going to be an integral part of the physics program at colliders at the…

高能物理 - 实验 · 物理学 2015-06-11 Christian Grefe , Tomas Lastovicka , Jan Strube

We review the techniques and results of the searches for the Higgs boson performed by the two Tevatron collaborations, CDF and DO. The Higgs boson predicted by the Standard Model was sought in the mass range 90 GeV$<m_H<200$ GeV in all main…

高能物理 - 实验 · 物理学 2015-03-09 Thomas R. Junk , Aurelio Juste

The Large Hadron Collider has recently discovered a Higgs-like particle having a mass around 125 GeV and also indicated that there is an enhancement in the Higgs to diphoton decay rate as compared to that in the standard model. We have…

高能物理 - 唯象学 · 物理学 2013-06-12 R. S. Hundi

We investigate the resummation effects in the Standard Model Higgs boson pair production through gluon-gluon fusion at the LHC with soft-collinear effective theory. We calculate the total cross section and the invariant mass distribution at…

高能物理 - 唯象学 · 物理学 2013-08-01 Ding Yu Shao , Chong Sheng Li , Hai Tao Li , Jian Wang

A search is performed for a Higgs boson produced in association with a Z boson and decaying into two photons, using the L3 data collected at LEP at a centre-of-mass energy of 189 GeV. All decay modes of the Z are considered. No signal is…

高能物理 - 实验 · 物理学 2012-08-27 L3 Collaboration

A search for a high-mass Higgs boson $H$ is performed in the $H\to{WW}\to\ell\nu\ell\nu$ and $H\to{WW}\to\ell\nu{qq}$ decay channels, using $pp$ collision data corresponding to an integrated luminosity of 20.3 fb$^{-1}$, collected at…

高能物理 - 实验 · 物理学 2016-01-19 ATLAS Collaboration

With no conclusive signal till date of the minimal supersymmetric and extra dimensional models at the Large Hadron Collider (LHC), the issue of fine-tuning of the Higgs mass still calls for some attention. It could be very possible that the…

高能物理 - 唯象学 · 物理学 2019-03-27 Nabarun Chakrabarty , Indrani Chakraborty

We further elaborate on the proposal that the Higgs boson should be a broad heavy resonance, referred to as true Higgs $H_T$, with mass around $750 \, GeV$. We stress once again that within the Standard Model the true Higgs is the unique…

高能物理 - 唯象学 · 物理学 2017-11-17 Paolo Cea

Recent evidence from the LHC for the Higgs boson with mass between 142 GeV < m_h < 147GeV points to PeV-scale Split Supersymmetry. This article explores the consequences of a Higgs mass in this range and possible discovery modes for Split…

高能物理 - 唯象学 · 物理学 2011-08-18 Daniele S. M. Alves , Eder Izaguirre , Jay G. Wacker

A search for the exotic decay of the Higgs boson to a pair of light pseudoscalars, each of which subsequently decays into a pair of photons, is presented. The search uses data from proton-proton collisions at $\sqrt{s}$ = 13 TeV recorded…

高能物理 - 实验 · 物理学 2023-08-08 CMS Collaboration

We study interference effects between resonant and nonresonant amplitudes for the $\gamma \gamma \rightarrow W^+ W^-$ process at a backscattered photon-photon collider. We show that a Higgs boson with $M_H$ > 200 GeV is manifest as a…

高能物理 - 唯象学 · 物理学 2009-10-22 D. A. Morris , T. N. Truong , D. Zappala