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Preliminary results from the four LEP experiments using data collected at 189 GeV have shown no evidence for the Standard Model Higgs boson. The preliminary 95% confidence level lower limits on the SM Higgs boson mass from ALEPH, DELPHI,…

High Energy Physics - Experiment · Physics 2016-08-31 Thomas Greening

Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are observed in these data sets, which are taken…

High Energy Physics - Experiment · Physics 2010-05-28 The DELPHI Collaboration , P. Abreu

The latest results of Higgs boson searches from the four LEP experiments, ALEPH, DELPHI, L3 and OPAL, are reviewed using the data taken in 1996 at center-of-mass energies between 161 and 172 GeV. No signal was observed. The 95% CL combined…

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

This talk covers the results of a search for the Standard Model Higgs boson in proton-proton collisions with the ATLAS detector at the LHC. The datasets used correspond to integrated luminosities of approximately 4.8 fb-1 collected at…

High Energy Physics - Experiment · Physics 2013-01-15 Arthur Schaffer

The discovery of the Higgs boson in 2012, by the ATLAS and CMS experiments, was a success achieved with only a percent of the entire dataset foreseen for the LHC. It opened a landscape of possibilities in the study of Higgs boson…

High Energy Physics - Phenomenology · Physics 2019-03-20 M. Cepeda , S. Gori , P. Ilten , M. Kado , F. Riva , R. Abdul Khalek , A. Aboubrahim , J. Alimena , S. Alioli , A. Alves , C. Asawatangtrakuldee , A. Azatov , P. Azzi , S. Bailey , S. Banerjee , E. L. Barberio , D. Barducci , G. Barone , M. Bauer , C. Bautista , P. Bechtle , K. Becker , A. Benaglia , M. Bengala , N. Berger , C. Bertella , A. Bethani , A. Betti , A. Biekotter , F. Bishara , D. Bloch , P. Bokan , O. Bondu , M. Bonvini , L. Borgonovi , M. Borsato , S. Boselli , S. Braibant-Giacomelli , G. Buchalla , L. Cadamuro , C. Caillol , A. Calandri , A. Calderon Tazon , J. M. Campbell , F. Caola , M. Capozi , M. Carena , C. M. Carloni Calame , A. Carmona , E. Carquin , A. Carvalho Antunes De Oliveira , A. Castaneda Hernandez , O. Cata , A. Celis , A. Cerri , F. Cerutti , G. S. Chahal , A. Chakraborty , G. Chaudhary , X. Chen , A. S. Chisholm , R. Contino , A. J. Costa , R. Covarelli , N. Craig , D. Curtin , L. D'Eramo , N. P. Dang , P. Das , S. Dawson , O. A. De Aguiar Francisco , J. de Blas , S. De Curtis , N. De Filippis , H. De la Torre , L. de Lima , A. De Wit , C. Delaere , M. Delcourt , M. Delmastro , S. Demers , N. Dev , R. Di Nardo , S. Di Vita , S. Dildick , L. A. F. do Prado , M. Donadelli , D. Du , G. Durieux , M. Dührssen , O. Eberhardt , K. El Morabit , J. Elias-Miro , J. Ellis , C. Englert , R. Essig , S. Falke , M. Farina , A. Ferrari , A. Ferroglia , M. C. N. Fiolhais , M. Flechl , S. Folgueras , E. Fontanesi , P. Francavilla , R. Franceschini , R. Frederix , S. Frixione , G. Gómez-Ceballos , A. Gabrielli , S. Gadatsch , M. Gallinaro , A. Gandrakota , J. Gao , F. M. Garay Walls , T. Gehrmann , Y. Gershtein , T. Ghosh , A. Gilbert , R. Glein , E. W. N. Glover , R. Gomez-Ambrosio , R. Gonçalo , D. Gonçalves , M. Gorbahn , E. Gouveia , M. Gouzevitch , P. Govoni , M. Grazzini , B. Greenberg , K. Grimm , A. V. Gritsan , A. Grohsjean , C. Grojean , J. Gu , R. Gugel , R. S. Gupta , C. B. Gwilliam , S. Höche , M. Haacke , Y. Haddad , U. Haisch , G. N. Hamity , T. Han , L. A. Harland-Lang , R. Harnik , S. Heinemeyer , G. Heinrich , B. Henning , V. Hirschi , K. Hoepfner , J. M. Hogan , S. Homiller , Y. Huang , A. Huss , S. Jézéquel , Sa. Jain , S. P. Jones , K. Köneke , J. Kalinowski , J. F. Kamenik , M. Kaplan , A. Karlberg , M. Kaur , P. Keicher , M. Kerner , A. Khanov , J. Kieseler , J. H. Kim , M. Kim , T. Klijnsma , F. Kling , M. Klute , J. R. Komaragiri , K. Kong , J. Kozaczuk , P Kozow , C. Krause , S. Lai , J. Langford , B. Le , L. Lechner , W. A. Leight , K. J. C. Leney , T. Lenz , C-Q. Li , H. Li , Q. Li , S. Liebler , J. Lindert , D. Liu , J. Liu , Y. Liu , Z. Liu , D. Lombardo , A. Long , K. Long , I. Low , G. Luisoni , L. L. Ma , A. -M. Magnan , D. Majumder , A. Malinauskas , F. Maltoni , M. L. Mangano , G. Marchiori , A. C. Marini , A. Martin , S. Marzani , A. Massironi , K. T. Matchev , R. D. Matheus , K. Mazumdar , J. Mazzitelli , A. E. Mcdougall , P. Meade , P. Meridiani , A. B. Meyer , E. Michielin , P. Milenovic , V. Milosevic , K. Mimasu , B. Mistlberger , M. Mlynarikova , M. Mondragon , P. F. Monni , G. Montagna , F. Monti , M. Moreno Llacer , A. Mueck , P. C. Muiño , C. Murphy , W. J. Murray , P. Musella , M. Narain , R. F. Naranjo Garcia , P. Nath , M. Neubert , O. Nicrosini , K. Nikolopoulos , A. Nisati , J. M. No , M. L. Ojeda , S. A. Olivares Pino , A. Onofre , G. Ortona , S. Pagan Griso , D. Pagani , E. Palencia Cortezon , C. Palmer , C. Pandini , G. Panico , L. Panwar , D. Pappadopulo , M. Park , R. Patel , F. Paucar-Velasquez , K. Pedro , L. Pernie , L. Perrozzi , B. A. Petersen , E. Petit , G. Petrucciani , G. Piacquadio , F. Piccinini , M. Pieri , T. Plehn , S. Pokorski , A. Pomarol , E. Ponton , S. Pozzorini , S. Prestel , K. Prokofiev , M. Ramsey-Musolf , E. Re , N. P. Readioff , D. Redigolo , L. Reina , E. Reynolds , M. Riembau , F. Rikkert , T. Robens , R. Roentsch , J. Rojo , N. Rompotis , J. Rorie , J. Rosiek , J. Roskes , J. T. Ruderman , N. Sahoo , S. Saito , R. Salerno , P. H. Sales De Bruin , A. Salvucci , K. Sandeep , J. Santiago , R. Santo , V. Sanz , U. Sarica , A. Savin , A. Savoy-Navarro , S. Sawant , A. C. Schaffer , M. Schlaffer , A. Schmidt , B. Schneider , R. Schoefbeck , M. Schröder , M. Scodeggio , E. Scott , L. Scyboz , M. Selvaggi , L. Sestini , H. -S. Shao , A. Shivaji , L. Silvestrini , L. Simon , K. Sinha , Y. Soreq , M. Spannowsky , M. Spira , D. Spitzbart , E. Stamou , J. Stark , T. Stefaniak , B. Stieger , G. Strong , M. Szleper , K. Tackmann , M. Takeuchi , S. Taroni , M. Testa , A. Thamm , V. Theeuwes , L. A. Thomsen , S. Tkaczyk , R. Torre , F. Tramontano , K. A. Ulmer , T. Vantalon , L. Vecchi , R. Vega-Morales , E. Venturini , M. Verducci , C. Vernieri , T. Vickey , M. Vidal Marono , P. Vischia , E. Vryonidou , P. Wagner , V. M. Walbrecht , L. -T. Wang , N. Wardle , D. R. Wardrope , G. Weiglein , S. Wertz , M. Wielers , J. M. Williams , R. Wolf , A. Wulzer , M. Xiao , H. T. Yang , E. Yazgan , Z. Yin , T. You , F. Yu , G. Zanderighi , D. Zanzi , M. Zaro , S. C. Zenz , D. Zerwas , M. Zgubič , J. Zhang , L. Zhang , W. Zhang , X. Zhao , Y. -M. Zhong

Searches are presented for physics beyond the Standard Model involving top-quark and related signatures. The results are based on proton-proton collision data corresponding to integrated luminosities between 1 fb-1 and 5 fb-1 collected at a…

High Energy Physics - Experiment · Physics 2019-08-14 Tobias Golling

Searches for extra dimensions have been made at the four LEP experiments, ALEPH, DELPHI, L3 and OPAL, where different processes have been searched for within both the ADD and Randall-Sundrum scenarios. Since no signs of any signal have been…

High Energy Physics - Experiment · Physics 2017-08-23 Stefan Ask

Searches for physics beyond the Standard Model (SM) with the CMS and ATLAS experiments in pp collisions at a centre of mass energy of sqrt(s)=7 TeV at the LHC are presented. The discussed results are based on data taken in 2011, making use…

High Energy Physics - Experiment · Physics 2012-06-27 Lars Sonnenschein

A search for the Higgsstrahlung process ${\rm e}^+{\rm e}^- \to {\rm HZ}$ is carried out, covering decays of the Higgs boson into any quark pair, a gluon pair or a tau pair. The analysis is based on the $630 {\rm pb}^{-1}$ of data collected…

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

LHCb is a dedicated detector for $b$ and $c$ physics at the LHC. I will present a concise review of the detector design and performance together with a selection of early physics results and prospects. The integrated luminosity of $37…

High Energy Physics - Experiment · Physics 2011-05-27 Monica Pepe Altarelli

In this paper we report on the legacy of Higgs boson searches at LEP. Specifically, the results of the statistical combination of the searches carried out by the ALEPH, DELPHI, L3 and OPAL experiments are presented. In the search for the…

High Energy Physics - Experiment · Physics 2008-11-26 P. Teixeira-Dias

This note describes preliminary LEP-combined results of searches for Higgs bosons decaying into photons. The analyses use data collected at sqrt(s)~88-209 GeV. Using the combined data for H -> gamma gamma, a lower bound of 108.2 GeV is set…

High Energy Physics - Experiment · Physics 2012-08-27 ALEPH Collaboration , DELPHI Collaboration , L3 Collaboration , OPAL Collaboration , the LEP Higgs Working Group

An overview of recent theoretical results on the Higgs boson and its discovery strategy at ATLAS and CMS will be presented, focusing on the main Higgs analysis effective with low integrated luminosity (less than 30 fb^-1).

High Energy Physics - Phenomenology · Physics 2010-11-11 Sara Bolognesi , Giuseppe Bozzi , Andrea Di Simone

A search for a Higgs boson decaying into invisible particles is performed using the data collected at LEP by the L3 experiment at centre-of-mass energies of 183 GeV and 189 GeV. The integrated luminosities are respectively 55.3 pb^-1 and…

High Energy Physics - Experiment · Physics 2012-08-27 L3 Collaboration

The ALICE detector was designed to study the physics of matter under extreme conditions of high energy density. Different results were reported by the experiment using data from the successful run I of the LHC. The goal of the present work…

High Energy Physics - Experiment · Physics 2019-08-13 Antonio Ortiz

The first year of LHC data taking provided an integrated luminosity of about 35/pb in proton-proton collisions at sqrt(s)=7 TeV. The accelerator and the experiments have demonstrated an excellent performance. The experiments have obtained…

High Energy Physics - Experiment · Physics 2011-06-21 Gregor Herten

Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202 GeV, corresponding to a total integrated…

High Energy Physics - Experiment · Physics 2010-05-28 The DELPHI Collaboration , P. Abreu

First ATLAS searches for signals of Supersymmetry in proton-proton collisions at the LHC are presented. These searches are performed in various channels containing different lepton and jet multiplicities in the final states; the full data…

High Energy Physics - Experiment · Physics 2011-06-07 Sascha Caron , ATLAS collaboration

The results of Higgs Boson searches with the ATLAS detector based on 2010 proton proton collision data corresponding to integrated luminosities of up to 39 pb-1are presented. Searches for H --> 2 photons, H --> W+W- --> l+l- 2 neutrinos and…

High Energy Physics - Experiment · Physics 2019-08-13 Markus Schumacher

The intrinsic flux of very high energy (VHE, Energy > 100 GeV) gamma-rays from extragalactic sources is attenuated due to pair production in the interaction with photons of the extragalactic background light (EBL). Depending on the distance…

High Energy Astrophysical Phenomena · Physics 2014-10-08 Manuel Meyer , Dieter Horns , Martin Raue