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Related papers: 2 TeV Walking Technirho at LHC?

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In 2018, the CMS collaboration reported a di-photon excess around 95.3 GeV with a local significance of 2.8 $\sigma$. Interestingly, the CMS collaboration also reported a di-tau excess recently at 95 $\sim$ 100 GeV with a local significance…

High Energy Physics - Phenomenology · Physics 2023-09-19 Weichao Li , Haoxue Qiao , Jingya Zhu

LHC searches for the standard model Higgs Boson in \gamma\gamma\ or \tau\tau\ decay modes place strong constraints on the light technipion state predicted in technicolor models that include colored technifermions. Compared with the standard…

High Energy Physics - Phenomenology · Physics 2012-02-08 R. Sekhar Chivukula , Pawin Ittisamai , Jing Ren , Elizabeth H. Simmons

We suggest an explanation for and explore the consequences of the excess around 95 GeV in the di-photon and di-tau invariant mass distributions recently reported by the CMS collaboration at the Large Hadron Collider (LHC), together with the…

High Energy Physics - Phenomenology · Physics 2024-05-06 Alexander Belyaev , Rachid Benbrik , Mohammed Boukidi , Manimala Chakraborti , Stefano Moretti , Souad Semlali

In several searches for additional Higgs bosons at the LHC, in particular in a CMS search exploring decays to pairs of top quarks, $t \bar t$, and in an ATLAS search studying tau leptons, $\tau^+\tau^-$, local excesses of about $3\,\sigma$…

High Energy Physics - Phenomenology · Physics 2022-04-20 Thomas Biekötter , Alexander Grohsjean , Sven Heinemeyer , Christian Schwanenberger , Georg Weiglein

Statistically significant excesses exist at around 152 GeV in associated di-photon production ($\gamma\gamma+X$) in the sidebands of SM Higgs analyses of ATLAS (using the full run-2 dataset). They are most pronounced in the single-$\tau$,…

High Energy Physics - Phenomenology · Physics 2024-10-15 Sumit Banik , Andreas Crivellin

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

Recently the CMS collaboration reported a $\sim 3 \sigma$ local excess in the di-photon spectrum at 96 GeV. The same mass range concurs with a $\sim2 \sigma$ local excess in the $b\bar{b}$ invariant mass spectrum in four-jet events…

High Energy Physics - Phenomenology · Physics 2022-11-22 Rachid Benbrik , Mohammed Boukidi , Stefano Moretti , Souad Semlali

The ATLAS excess in fat jet pair production is kinematically compatible with the decay of a heavy resonance into two gauge bosons plus an extra particle. This hypothesis would explain the absence of such a large excess in the analogous CMS…

High Energy Physics - Phenomenology · Physics 2015-09-28 J. A. Aguilar-Saavedra

We calculate masses of the technipions in the walking technicolor model with the anomalous dimension gamma_m =1, based on a holographic model which has a naturally light technidilaton phi as a composite Higgs with mass m_phi simeq 125 GeV.…

High Energy Physics - Phenomenology · Physics 2014-11-19 Masafumi Kurachi , Shinya Matsuzaki , Koichi Yamawaki

In both Run 1 and Run 2 of the LHC, the CMS collaboration has observed an excess of events in the searches for low-mass Higgs bosons in the diphoton final state at a mass of about 95 GeV. After a recent update of the experimental analysis,…

High Energy Physics - Phenomenology · Physics 2023-06-29 Duarte Azevedo , Thomas Biekötter , P. M. Ferreira

In light of the recent 750 GeV diphoton excesses reported by the ATLAS and CMS collaborations, we investigate the possibility of explaining this excess using the Minimal Dilaton Model. We find that this model is able to explain the observed…

High Energy Physics - Phenomenology · Physics 2016-09-07 Bakul Agarwal , Joshua Isaacson , Kirtimaan A. Mohan

The resonant excesses around 2 TeV reported by the ATLAS Collaboration can be explained in the left-right model, and the tight constraints from lepton plus missing energy searches can be evaded if the $SU(2)_R$ gauge symmetry is…

High Energy Physics - Phenomenology · Physics 2016-01-20 Kasinath Das , Tianjun Li , S. Nandi , Santosh Kumar Rai

Recently there has been a huge interest in the diphoton excess around 750 GeV reported by both ATLAS and CMS collaborations, although the newest analysis with more statistics does not seem to support the excess. Nevertheless, the diphoton…

High Energy Physics - Phenomenology · Physics 2016-10-19 Kunio Kaneta , Subeom Kang , Hye-Sung Lee

This paper extends an earlier one describing the Higgs boson $H$ as a light composite scalar in a strong extended technicolor model of electroweak symmetry breaking. The Higgs mass $M_H$ is made much smaller than $\Lambda_{ETC}$ by tuning…

High Energy Physics - Phenomenology · Physics 2017-07-04 Kenneth Lane , Lukas Pritchett

We interpret the 2 TeV excesses at the LHC in a left-right symmetric model with Higgs doublets and spontaneous $D$-parity violation. The light neutrino masses are understood via a linear seesaw, suppressed by a high $D$-parity breaking…

High Energy Physics - Phenomenology · Physics 2016-01-20 Frank F. Deppisch , Lukas Graf , Suchita Kulkarni , Sudhanwa Patra , Werner Rodejohann , Narendra Sahu , Utpal Sarkar

We study a holographic model dual to walking/conformal technicolor (W/C TC) deforming a hard-wall type of bottom-up setup by including effects from techni-gluon condensation. We calculate masses of (techni-) $\rho$ meson, $a_1$ meson, and…

High Energy Physics - Phenomenology · Physics 2010-03-16 Kazumoto Haba , Shinya Matsuzaki , Koichi Yamawaki

The ATLAS collaboration reported excesses at around 2 TeV in the di-boson production decaying into hadronic final states. We consider the possibility of explaining the excesses with extra gauge bosons in two simple non-Abelian extensions of…

High Energy Physics - Phenomenology · Physics 2015-12-02 Qing-Hong Cao , Bin Yan , Dong-Ming Zhang

We provide an interpretation of the recent ATLAS diboson excess in terms of a class of supersymmetric models in which the scale of supersymmetry (SUSY) breaking is in the few TeV range. The particle responsible for the excess is the scalar…

High Energy Physics - Phenomenology · Physics 2016-02-17 Christoffer Petersson , Riccardo Torre

In multiscale models of walking technicolor, relatively light color-singlet technipions are produced in $q \ol q$ annihilation in association with longitudinal $W$ and $Z$ bosons and with each other. The technipions decay as $\tpiz \ra b…

High Energy Physics - Phenomenology · Physics 2009-10-28 Estia Eichten , Kenneth Lane

We find that a holographic walking technicolor model has a limit ("conformal limit") where the techni-dilaton (TD) becomes an exactly massless Nambu-Goldstone boson of the scale symmetry with its nonzero finite decay constant F_phi /= 0,…

High Energy Physics - Phenomenology · Physics 2015-06-11 Shinya Matsuzaki , Koichi Yamawaki