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Differential cross-sections are measured for the production of four charged leptons in association with two jets. These measurements are sensitive to final states in which the jets are produced via the strong interaction as well as to the…

High Energy Physics - Experiment · Physics 2024-08-29 ATLAS Collaboration

Muonic final states will provide clean signatures formany physics processes at the LHC. The two LHC experiments ATLAS and CMS will be able to identify muons with a high reconstruction efficiency above 96% and a high transverse momentum…

High Energy Physics - Experiment · Physics 2007-07-09 Oliver Kortner

An overview of the boosted top production analyses using data collected by the ATLAS and CMS experiments at $\sqrt{s}=$ 8 TeV and 13 TeV of proton-proton collisions at the LHC is presented. These analyses use techniques for the…

High Energy Physics - Experiment · Physics 2017-08-29 Marino Romano

The performance of taggers for hadronically decaying top quarks and $W$ bosons in $pp$ collisions at $\sqrt{s}$ = 13 TeV recorded by the ATLAS experiment at the Large Hadron Collider is presented. A set of techniques based on jet shape…

High Energy Physics - Experiment · Physics 2019-06-05 ATLAS Collaboration

A search is presented for hadronic signatures of beyond the Standard Model (BSM) physics, with an emphasis on signatures of a strongly-coupled hidden dark sector accessed via resonant production of a $Z'$ mediator. The ATLAS experiment…

High Energy Physics - Experiment · Physics 2025-08-29 ATLAS Collaboration

A search is conducted for a new scalar boson $S$, with a mass distinct from that of the Higgs boson, decaying into four leptons ($\ell =$ $e$, $\mu$) via an intermediate state containing two on-shell, promptly decaying new spin-1 bosons…

High Energy Physics - Experiment · Physics 2025-04-28 ATLAS Collaboration

CMS reports on the recently updated, preliminary results with the full datasets of 2011 and 2012 in the analysis of the Higgs-like Boson at 125 GeV. Utilizing 5.1$fb^{-1}$ of 7 TeV data and 19.6$fb^{-1}$ of 8 TeV data, a signal strength of…

High Energy Physics - Experiment · Physics 2013-05-17 Christopher Palmer

We introduce a class of asymmetries sensitive to the spin and CP properties of the new boson discovered by the ATLAS and CMS experiments. These asymmetries can be measured in the four-lepton final state, and are defined by integrating the…

High Energy Physics - Phenomenology · Physics 2012-08-23 Radja Boughezal , Thomas J. LeCompte , Frank Petriello

Recently, the ATLAS Collaboration recorded an interesting anomaly in diboson production with excesses at the diboson invariant mass around 2 TeV in boosted jets of all the $WZ$, $W^+ W^-$, and $ZZ$ channels. We offer a theoretical…

High Energy Physics - Phenomenology · Physics 2015-11-18 Kingman Cheung , Wai-Yee Keung , Po-Yan Tseng , Tzu-Chiang Yuan

Precise detection of spin resonance is of paramount importance to achieve coherent spin control in quantum computing. We present a novel setup for spin resonance measurements, which uses a dc-SQUID flux detector coupled to an antenna from a…

Mesoscale and Nanoscale Physics · Physics 2017-11-17 G. Yue , L. Chen , J. Barreda , V. Bevara , L. Hu , L. Wu , Z. Wang , P. Andrei , S. Bertaina , I. Chiorescu

The study of W or Z boson with accompanying hadronic jets in final states is of high importance at hadron colliders both to understand Standard Model processes and to measure background to Beyond Standard Model physics searches. The…

High Energy Physics - Experiment · Physics 2019-08-14 A. Ahmad

A search for new massive particles decaying into a pair of Higgs bosons in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. Data were collected with the CMS detector at the LHC, corresponding to an integrated…

High Energy Physics - Experiment · Physics 2019-10-28 CMS Collaboration

Properties of the top-quark are presented, with emphasis on the most recent ATLAS measurements of the mass and $t\bar{t}$ spin correlations, obtained with proton-proton collision data collected at the Large Hadron Collider. Normalised…

High Energy Physics - Experiment · Physics 2019-09-10 Markus Cristinziani

A search is performed for narrow resonances decaying into $WW$, $WZ$, or $ZZ$ boson pairs using 20.3 fb$^{-1}$ of proton-proton collision data at a centre-of-mass energy of $\sqrt{s}$ = 8 TeV recorded with the ATLAS detector at the Large…

High Energy Physics - Experiment · Physics 2016-01-25 ATLAS Collaboration

Recent realizations of exotic topological states in condensed matter and cold atoms have advanced the exploration for topological characteristics, such as invariant topological orders and band inversion. Here we construct a 1D optical…

Optics · Physics 2018-09-14 Jun Jiang , Zhiwei Guo , Weiwei Zhu , Yang Long , Haitao Jiang , Jie Ren , Hong Chen

We study the production of a single resonance at the LHC and its decay into a pair of Z bosons. We demonstrate how full reconstruction of the final states allows us to determine the spin and parity of the resonance and restricts its…

High Energy Physics - Phenomenology · Physics 2010-05-12 Yanyan Gao , Andrei V. Gritsan , Zijin Guo , Kirill Melnikov , Markus Schulze , Nhan V. Tran

Differential cross-section measurements are presented for the electroweak production of two jets in association with a $Z$ boson. These measurements are sensitive to the vector-boson fusion production mechanism and provide a fundamental…

High Energy Physics - Experiment · Physics 2021-04-08 ATLAS Collaboration

Results from a wide range of searches targeting different experimental signatures with and without missing transverse momentum ($E_{\mathrm{T}}^{\mathrm{miss}}$) are used to constrain a Two-Higgs-Doublet Model (2HDM) with an additional…

High Energy Physics - Experiment · Physics 2024-12-02 ATLAS Collaboration

Jets from boosted heavy particles have a typical angular scale which can be used to distinguish them from QCD jets. We introduce a machine learning strategy for jet substructure analysis using a spectral function on the angular scale. The…

High Energy Physics - Phenomenology · Physics 2018-10-31 Sung Hak Lim , Mihoko M. Nojiri

A search for new charged massive gauge bosons, $W^\prime$, is performed with the ATLAS detector at the LHC. Data were collected in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 13 TeV and correspond to an integrated…

High Energy Physics - Experiment · Physics 2018-12-04 ATLAS Collaboration