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A second light Higgs boson, with mass of approximately 145 GeV, is predicted by non-minimal Supersymmetric models. This new particle can account for an apparent \sim 3 \sigma excess recorded by the CMS experiment at the Large Hadron…

High Energy Physics - Experiment · Physics 2015-10-26 S. Khalil , S. Moretti

Recent excesses across different search modes of the collaborations at the LHC seem to indicate the presence of a Higgs-like scalar particle at 125 GeV. Using the current data sets, we review and update analyses addressing the extent to…

High Energy Physics - Phenomenology · Physics 2012-06-28 Aleksandr Azatov , Roberto Contino , Jamison Galloway

A study of searching for doubly charged Higgs $(\delta^{\pm\pm})$ is performed in two-Higgs-doublet extension of the type-II seesaw model. We find that a significant mixing effect between singly charged Higgs of Higgs doublet and of triplet…

High Energy Physics - Phenomenology · Physics 2015-04-28 Takaaki Nomura

A search for Higgs boson decays into a $Z$ boson and a light resonance in two-lepton plus jet events is performed, using a $pp$ collision dataset with an integrated luminosity of 139 fb$^{-1}$ collected at $\sqrt{s}=13$ TeV by the ATLAS…

High Energy Physics - Experiment · Physics 2021-01-15 ATLAS Collaboration

A search for a Higgs boson with suppressed couplings to fermions, $h_f$, assumed to be the neutral, lower-mass partner of the Higgs boson discovered at the Large Hadron Collider, is reported. Such a Higgs boson could exist in extensions of…

High Energy Physics - Experiment · Physics 2016-06-29 CDF Collaboration , T. Aaltonen , S. Amerio , D. Amidei , A. Anastassov , A. Annovi , J. Antos , G. Apollinari , J. A. Appel , T. Arisawa , A. Artikov , J. Asaadi , W. Ashmanskas , B. Auerbach , A. Aurisano , F. Azfar , W. Badgett , T. Bae , A. Barbaro-Galtieri , V. E. Barnes , B. A. Barnett , P. Barria , P. Bartos , M. Bauce , F. Bedeschi , S. Behari , G. Bellettini , J. Bellinger , D. Benjamin , A. Beretvas , A. Bhatti , K. R. Bland , B. Blumenfeld , A. Bocci , A. Bodek , D. Bortoletto , J. Boudreau , A. Boveia , L. Brigliadori , C. Bromberg , E. Brucken , J. Budagov , H. S. Budd , K. Burkett , G. Busetto , P. Bussey , P. Butti , A. Buzatu , A. Calamba , S. Camarda , M. Campanelli , F. Canelli , B. Carls , D. Carlsmith , R. Carosi , S. Carrillo , B. Casal , M. Casarsa , A. Castro , P. Catastini , D. Cauz , V. Cavaliere , A. Cerri , L. Cerrito , Y. C. Chen , M. Chertok , G. Chiarelli , G. Chlachidze , K. Cho , D. Chokheli , A. Clark , C. Clarke , M. E. Convery , J. Conway , M. Corbo , M. Cordelli , C. A. Cox , D. J. Cox , M. Cremonesi , D. Cruz , J. Cuevas , R. Culbertson , N. d'Ascenzo , M. Datta , P. de Barbaro , L. Demortier , L. Marchese , M. Deninno , F. Devoto , M. D'Errico , A. Di Canto , B. Di Ruzza , J. R. Dittmann , M. D'Onofrio , S. Donati , M. Dorigo , A. Driutti , K. Ebina , R. Edgar , R. Erbacher , S. Errede , B. Esham , S. Farrington , J. P. Fernández Ramos , R. Field , G. Flanagan , R. Forrest , M. Franklin , J. C. Freeman , H. Frisch , Y. Funakoshi , C. Galloni , A. F. Garfinkel , P. Garosi , H. Gerberich , E. Gerchtein , S. Giagu , V. Giakoumopoulou , K. Gibson , C. M. Ginsburg , N. Giokaris , P. Giromini , V. Glagolev , D. Glenzinski , M. Gold , D. Goldin , A. Golossanov , G. Gomez , G. Gomez-Ceballos , M. Goncharov , O. González López , I. Gorelov , A. T. Goshaw , K. Goulianos , E. Gramellini , C. Grosso-Pilcher , J. Guimaraes da Costa , S. R. Hahn , J. Y. Han , F. Happacher , K. Hara , M. Hare , R. F. Harr , T. Harrington-Taber , K. Hatakeyama , C. Hays , J. Heinrich , M. Herndon , A. Hocker , Z. Hong , W. Hopkins , S. Hou , R. E. Hughes , U. Husemann , M. Hussein , J. Huston , G. Introzzi , M. Iori , A. Ivanov , E. James , D. Jang , B. Jayatilaka , E. J. Jeon , S. Jindariani , M. Jones , K. K. Joo , S. Y. Jun , T. R. Junk , M. Kambeitz , T. Kamon , P. E. Karchin , A. Kasmi , Y. Kato , W. Ketchum , J. Keung , B. Kilminster , D. H. Kim , H. S. Kim , J. E. Kim , M. J. Kim , S. B. Kim , S. H. Kim , Y. K. Kim , Y. J. Kim , N. Kimura , M. Kirby , K. Knoepfel , K. Kondo , D. J. Kong , J. Konigsberg , A. V. Kotwal , M. Kreps , J. Kroll , M. Kruse , T. Kuhr , M. Kurata , A. T. Laasanen , S. Lammel , M. Lancaster , K. Lannon , G. Latino , H. S. Lee , J. S. Lee , S. Leo , S. Leone , J. D. Lewis , A. Limosani , E. Lipeles , A. Lister , Q. Liu , T. Liu , S. Lockwitz , A. Loginov , A. Lucà , D. Lucchesi , J. Lueck , P. Lujan , P. Lukens , G. Lungu , J. Lys , R. Lysak , R. Madrak , P. Maestro , S. Malik , G. Manca , A. Manousakis-Katsikakis , F. Margaroli , P. Marino , K. Matera , M. E. Mattson , A. Mazzacane , P. Mazzanti , R. McNulty , A. Mehta , P. Mehtala , C. Mesropian , T. Miao , D. Mietlicki , A. Mitra , H. Miyake , S. Moed , N. Moggi , C. S. Moon , R. Moore , M. J. Morello , A. Mukherjee , Th. Muller , P. Murat , M. Mussini , J. Nachtman , Y. Nagai , J. Naganoma , I. Nakano , A. Napier , J. Nett , T. Nigmanov , L. Nodulman , S. Y. Noh , O. Norniella , L. Oakes , S. H. Oh , Y. D. Oh , T. Okusawa , R. Orava , L. Ortolan , C. Pagliarone , E. Palencia , P. Palni , V. Papadimitriou , W. Parker , G. Pauletta , M. Paulini , C. Paus , T. J. Phillips , G. Piacentino , E. Pianori , J. Pilot , K. Pitts , C. Plager , L. Pondrom , S. Poprocki , K. Potamianos , F. Prokoshin , A. Pranko , F. Ptohos , G. Punzi , I. Redondo Fernández , P. Renton , M. Rescigno , F. Rimondi , L. Ristori , A. Robson , T. Rodriguez , S. Rolli , M. Ronzani , R. Roser , J. L. Rosner , F. Ruffini , A. Ruiz , J. Russ , V. Rusu , W. K. Sakumoto , Y. Sakurai , L. Santi , K. Sato , V. Saveliev , A. Savoy-Navarro , P. Schlabach , E. E. Schmidt , T. Schwarz , L. Scodellaro , F. Scuri , S. Seidel , Y. Seiya , A. Semenov , F. Sforza , S. Z. Shalhout , T. Shears , P. F. Shepard , M. Shimojima , M. Shochet , I. Shreyber-Tecker , A. Simonenko , K. Sliwa , J. R. Smith , F. D. Snider , V. Sorin , H. Song , M. Stancari , R. St. Denis , D. Stentz , J. Strologas , Y. Sudo , A. Sukhanov , I. Suslov , K. Takemasa , Y. Takeuchi , J. Tang , M. Tecchio , P. K. Teng , J. Thom , E. Thomson , V. Thukral , D. Toback , S. Tokar , K. Tollefson , T. Tomura , D. Tonelli , S. Torre , D. Torretta , P. Totaro , M. Trovato , F. Ukegawa , S. Uozumi , F. Vázquez , G. Velev , C. Vellidis , C. Vernieri , M. Vidal , R. Vilar , J. Vizán , M. Vogel , G. Volpi , P. Wagner , R. Wallny , S. M. Wang , D. Waters , W. C. Wester , D. Whiteson , A. B. Wicklund , S. Wilbur , H. H. Williams , J. S. Wilson , P. Wilson , B. L. Winer , P. Wittich , S. Wolbers , H. Wolfe , T. Wright , X. Wu , Z. Wu , K. Yamamoto , D. Yamato , T. Yang , U. K. Yang , Y. C. Yang , W. -M. Yao , G. P. Yeh , K. Yi , J. Yoh , K. Yorita , T. Yoshida , G. B. Yu , I. Yu , A. M. Zanetti , Y. Zeng , C. Zhou , S. Zucchelli

We reexamine the prospects for searching for a neutral Higgs boson in the intermediate-mass range and physics beyond the standard model, using the proton- and ion-beam facilities of the LHC to study coherent two-photon processes.…

High Energy Physics - Phenomenology · Physics 2007-05-23 Elena Papageorgiu

In the Standard Model (SM), the weak gauge bosons and fermions acquire mass through the Higgs mechanism. A lower limit on the SM Higgs mass of 114.4 GeV was obtained from the direct search at LEP. Although a single Higgs doublet is…

High Energy Physics - Experiment · Physics 2007-05-23 Andre G. Holzner

A search for a charged Higgs boson is performed with a data sample corresponding to an integrated luminosity of 19.7 +/- 0.5 inverse femtobarns collected with the CMS detector in proton-proton collisions at sqrt(s) = 8 TeV. The charged…

High Energy Physics - Experiment · Physics 2016-06-16 CMS Collaboration

The latest preliminary results of the searches for Higgs bosons and Supersymmetric particles at LEP are reviewed. The results include the data-taking in 1999 up to center-of-mass energies of 196 GeV. The combination of the results from the…

High Energy Physics - Phenomenology · Physics 2011-04-15 Andre Sopczak

The recent results reported by the CMS collaboration, indicating "bumps" in the $\gamma\gamma$ and $\tau\tau$ channels at $m_\phi\approx 95$ GeV, provide interesting hints for new physics. We find that the lightest Higgs state of the…

High Energy Physics - Phenomenology · Physics 2024-02-07 A. Belyaev , R. Benbrik , M. Boukidi , M. Chakraborti , S. Moretti , S. Semlali

Many models of electroweak symmetry breaking have an additional light pseudoscalar. If the Higgs boson can decay to a new pseudoscalar, LEP searches for the Higgs can be significantly altered and the Higgs can be as light as 86 GeV.…

High Energy Physics - Phenomenology · Physics 2009-06-30 Mariangela Lisanti , Jay G. Wacker

We present a search for a Higgs boson decaying to two W bosons in ppbar collisions at sqrt(s)=1.96 TeV center-of-mass energy. The data sample corresponds to an integrated luminosity of 3.0 fb-1 collected with the CDF II detector. We find no…

High Energy Physics - Experiment · Physics 2010-05-12 CDF Collaboration , T. Aaltonen

The lightest CP-even Higgs boson $h$ in the minimum supersymmetric standard model (MSSM) has a mass upper bound depending on the top quark and squark masses. An $e^+e^-$ collider with enough energy and luminosity to produce $h+Z$ at…

High Energy Physics - Phenomenology · Physics 2009-09-15 V. Barger , Kingman Cheung , R. J. N. Phillips , A. L. Stange

We compute the mass of the Higgs particle in a scheme in which SUSY is broken at a large scale M_{SS} well above the electroweak scale M_{EW}. Below M_{SS} one assumes one is just left with the SM with a fine-tuned Higgs potential. Under…

High Energy Physics - Phenomenology · Physics 2015-06-12 Luis E. Ibanez , Irene Valenzuela

The only place in the world where at this time standard model Higgs bosons can be produced and detected is the Tevatron at Fermilab. In this contribution, the most recent results on the search for a low mass Higgs boson are presented, using…

High Energy Physics - Experiment · Physics 2019-08-14 Michiel P. Sanders

A light pseudo-scalar that is copiously produced at the LHC may still be allowed by present searches. While masses above 65 GeV are effectively covered by di-photon searches, the lower mass window can be tested by a new search for boosted…

High Energy Physics - Phenomenology · Physics 2018-09-17 Giacomo Cacciapaglia , Gabriele Ferretti , Thomas Flacke , Hugo Serodio

The Large Electron-Positron (LEP) collider experiments have constrained the mass of the Standard Model (SM) Higgs boson to be above 114.4 GeV. This bound applies to all extensions of the SM where the coupling of a Higgs boson to the Z boson…

High Energy Physics - Phenomenology · Physics 2010-05-25 Alexander Belyaev , Renato Guedes , Stefano Moretti , Rui Santos

Relatively light stops in gauge mediation models are usually made compatible with the Higgs mass of 125 GeV by introducing direct Higgs-messenger couplings. We show that such couplings are not necessary in a simple and predictive model that…

High Energy Physics - Phenomenology · Physics 2015-10-13 Ben Allanach , Marcin Badziak , Cyril Hugonie , Robert Ziegler

Even though the unified theory of electroweak interactions is very successful at low energies, there remains one part to be confirmed. It is the sector involving Higgs particles. Those Higgs particles are expected to be discovered. It has…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yutaka Hosotani

We discuss the SM Higgs discovery potential of LHC in the reaction $pp\to H+ jet\to\gamma\gamma+jet$ when the jet is observed at sufficiently high $E_t$ to be reliably identified. We conclude that this channel gives promising discovery…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. Abdullin , M. Dubinin , V. Ilyin , D. Kovalenko , V. Savrin , N. Stepanov