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Related papers: Probing the SM with Dijets at the LHC

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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. The bounds…

High Energy Physics - Phenomenology · Physics 2009-11-07 G. A. Kozlov , T. Morii

Measurements at low transverse momentum will be performed at the LHC for studying particle production mechanisms in $pp$ and heavy-ion collisions. Some of the experimental capabilities for bulk matter physics are presented, focusing on…

High Energy Physics - Experiment · Physics 2009-07-22 B. Hippolyte

Due to the large production cross-section, many of the top quark properties can be measured very precisely at the LHC. A very few recent results, probed only through the top quark decay vertices are presented here. These results are based…

High Energy Physics - Experiment · Physics 2017-10-13 Prolay Kumar Mal

We explore the possibility that the right-handed top quark is composite, identifying possible signatures of compositeness and how they might manifest themselves at the LHC and Tevatron. We perform a complete analysis of the dimension six…

High Energy Physics - Phenomenology · Physics 2009-06-02 Kunal Kumar , Tim M. P. Tait , Roberto Vega-Morales

The Higgs boson search has shifted from LEP2 to the Tevatron and will subsequently move to the LHC. The current limits from the Tevatron and the prospective sensitivities at the LHC are often interpreted in specific MSSM scenarios. For…

High Energy Physics - Phenomenology · Physics 2009-01-07 M. Carena , S. Heinemeyer , C. E. M. Wagner , G. Weiglein

A new set of measurements of the top quark mass are presented, based on the proton-proton data recorded by the CMS experiment at the LHC at sqrt(s) = 8 TeV corresponding to a luminosity of 19.7 inverse femtobarns. The top quark mass is…

High Energy Physics - Experiment · Physics 2016-04-15 CMS Collaboration

A search for narrow resonances in the dijet mass spectrum is performed using data corresponding to an integrated luminosity of 2.9 inverse pb collected by the CMS experiment at the LHC. Upper limits at the 95% confidence level (CL) are…

High Energy Physics - Experiment · Physics 2012-08-27 CMS Collaboration

Measurements of the top-quark mass employing alternative techniques are presented, performed by the D0 and CDF collaborations at the Tevatron as well as the ATLAS and CMS experiments at the LHC. The alternative methods presented include…

High Energy Physics - Experiment · Physics 2014-12-01 Stefanie Adomeit

We consider the production of high invariant mass jet pairs at hadron colliders as a test for TeV scale gravitational effects. We find that this signal can probe effective Planck masses of about 10 TeV at the LHC with center of mass energy…

High Energy Physics - Phenomenology · Physics 2009-10-31 David Atwood , Shaouly Bar-Shalom , Amarjit Soni

The Standard Model (SM) is the best description of fundamental particles and their interactions we have to date. From this theory, all phenomena in the macroscopic world (except for gravity) can be explained, and it has successfully…

High Energy Physics - Phenomenology · Physics 2024-07-30 Joan Ruiz-Vidal

The top-quark is a fundamental element of the physics program at the Large Hadron Collider (LHC). We review the current status of the top-quark measurements performed by ATLAS and CMS experiments in pp collisions at sqrt(s)=7 TeV by…

High Energy Physics - Experiment · Physics 2012-01-31 Luca Fiorini

We study the phenomenology of a strongly-interacting top quark at future hadron and lepton colliders, showing that the characteristic four-top contact operators give rise to the most significant effects. We demonstrate the extraordinary…

High Energy Physics - Phenomenology · Physics 2021-02-16 Giovanni Banelli , Ennio Salvioni , Javi Serra , Tobias Theil , Andreas Weiler

A search for $t$-channel exchange of leptoquarks (LQs) is performed in dimuon and dielectron spectra using proton-proton collision data collected at $\sqrt{s}$ = 13 TeV with the CMS detector at the CERN LHC. The data correspond to an…

High Energy Physics - Experiment · Physics 2026-01-15 CMS Collaboration

A number of LHC resonance search channels display an excess in the invariant mass region of 1.8 - 2.0 TeV. Among them is a $3.4\,\sigma$ excess in the fully hadronic decay of a pair of Standard Model electroweak gauge bosons, in addition to…

High Energy Physics - Phenomenology · Physics 2015-11-13 Johann Brehmer , JoAnne Hewett , Joachim Kopp , Thomas Rizzo , Jamie Tattersall

Multijet cross sections at the LHC and Tevatron are sensitive to several distinct kinematic energy scales. When measuring the dijet invariant mass m_jj between two signal jets produced in association with other jets or weak bosons, m_jj…

High Energy Physics - Phenomenology · Physics 2013-05-30 Christian W. Bauer , Frank J. Tackmann , Jonathan R. Walsh , Saba Zuberi

We analyze the potentiality of the CERN Large Hadron Collider to probe the Higgs boson couplings to the electroweak gauge bosons. We parametrize the possible deviations of these couplings due to new physics in a model independent way, using…

High Energy Physics - Phenomenology · Physics 2014-11-17 O. J. P. Eboli , M. C. Gonzalez-Garcia , S. M . Lietti , S. F. Novaes

We explore the room for possible deviations from the Standard Model (SM) Higgs boson coupling structure in a systematic study of Higgs coupling scale factor benchmark scenarios using the latest signal rate measurements from the Tevatron and…

High Energy Physics - Phenomenology · Physics 2014-11-21 Philip Bechtle , Sven Heinemeyer , Oscar Stål , Tim Stefaniak , Georg Weiglein

Leptoquarks (LQs) are hypothetical particles that appear in various extensions of the Standard Model (SM) that can explain observed differences between SM theory predictions and experimental results. The production of these particles has…

High Energy Physics - Phenomenology · Physics 2023-11-27 A. Flórez , J. Jones-Pérez , A. Gurrola , C. Rodriguez , J. Peñuela-Parra

Recent measurements dedicated to improving the understanding of modelling top quark pair (${\text{t}\overline{\text{t}}}$) production at the LHC are summarised. These measurements, performed with proton-proton collision data collected by…

High Energy Physics - Experiment · Physics 2019-01-17 Emyr Clement

A search for supersymmetry is presented based on proton-proton collision events containing identified hadronically decaying top quarks, no leptons, and an imbalance $p_\mathrm{T}^\text{miss}$ in transverse momentum. The data were collected…

High Energy Physics - Experiment · Physics 2018-02-14 CMS Collaboration