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Accumulating evidence for the associated production of a new Higgs boson at the LHC
/ Crivellin, Andreas (Zurich U. ; PSI, Villigen ; CERN) ; Fang, Yaquan (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Fischer, Oliver (Liverpool U.) ; Bhattacharya, Srimoy (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Kumar, Mukesh (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Malwa, Elias (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Mellado, Bruce (U. Witwatersrand, Johannesburg, Sch. Phys. ; iThemba LABS) ; Rapheeha, Ntsoko (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Ruan, Xifeng (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Sha, Qiyu (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS)
In the last decades, the Standard Model (SM) of particle physics has been extensively tested and confirmed, with the announced discovery of the Higgs boson in 2012 being the last missing puzzle piece. Even though since then the search for new particles and interactions has been further intensified, the experiments ATLAS and CMS at the Large Hadron Collider (LHC) at CERN did not find evidence for the direct production of a new state. [...]
arXiv:2109.02650; ICPP-057; PSI-PR-21-21; ZU-TH 38/21; CERN-TH-2021-129; LTH 1267.-
2023-12-01 - 9 p.
- Published in : Phys. Rev. D 108 (2023) 115031
Fulltext: 2109.02650 - PDF; Publication - PDF;
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2.
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The anomalous production of multi-lepton and its impact on the measurement of $Wh$ production at the LHC
/ Hernandez, Yesenia (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Kumar, Mukesh (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Cornell, Alan S. (Johannesburg U.) ; Dahbi, Salah-Eddine (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Fang, Yaquan (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Lieberman, Benjamin (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Mellado, Bruce (U. Witwatersrand, Johannesburg, Sch. Phys. ; iThemba LABS) ; Monnakgotla, Kgomotso (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Ruan, Xifeng (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Xin, Shuiting (Beijing, GUCAS ; Beijing, Inst. High Energy Phys.)
Anomalies in multi-lepton final states at the Large Hadron Collider (LHC) have been reported in Refs.~\cite{vonBuddenbrock:2017gvy,vonBuddenbrock:2019ajh}. These can be interpreted in terms of the production of a heavy boson, $H$, decaying into a Standard Model (SM) Higgs boson, $h$, and a singlet scalar, $S$, which is treated as a SM Higgs-like boson. [...]
arXiv:1912.00699.-
2021-04-27 - 13 p.
- Published in : Eur. Phys. J. C 81 (2021) 365
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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3.
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Jet-Origin Identification and Its Application at an Electron-Positron Higgs Factory
/ Liang, Hao (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Zhu, Yongfeng (Peking U., SKLNPT) ; Wang, Yuexin (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS ; CCAST World Lab, Beijing) ; Che, Yuzhi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Zhou, Chen (Peking U., SKLNPT) ; Qu, Huilin (CERN) ; Ruan, Manqi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS)
To enhance the scientific discovery power of high-energy collider experiments, we propose and realize the concept of jet origin identification that categorizes jets into 5 quark species $(b,c,s,u,d)$, 5 anti-quarks $(\bar{b},\bar{c},\bar{s},\bar{u},\bar{d})$, and the gluon. Using state-of-the-art algorithms and simulated $\nu\bar{\nu}H, H\rightarrow jj$ events at 240 GeV center-of-mass energy at the electron-positron Higgs factory, the jet origin identification simultaneously reaches jet flavor tagging efficiencies ranging from 67% to 92% for bottom, charm, and strange quarks, and jet charge flip rates of 7% to 24% for all quark species. [...]
arXiv:2310.03440.-
2024-05-31 - 8 p.
- Published in : Phys. Rev. Lett. 132 (2024) 221802
Fulltext: 2310.03440 - PDF; Publication - PDF;
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4.
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Emission Mössbauer spectroscopy of advanced materials for opto- and nano- electronics
/ Gunnlaugsson, H P (Department of Physics and Astronomy, Aarhus University, DK-8000 Århus C, Denmark) ; Mølholt, T E (Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavík, Iceland) ; Mantovan, R (Laboratorio Nazionale MDM CNR-INFM, 20041 Agrate Brianza (MI), Italy) ; Masenda, H (School of Physics, University of the Witwatersrand, WITS 2050, South Africa) ; Naidoo, D (School of Physics, University of the Witwatersrand, WITS 2050, South Africa) ; Dlamini, W B (University of KwaZulu-Natal, Durban 4001, South Africa) ; Sielemann, R (Helmholtz Forschungszentrum,D-14109 Berlin, Germany) ; Bharuth-Ram, K (iThemba LABS, P.O. Box 722, Somerset West 7129, South Africa) ; Fanciulli, M (Laboratorio Nazionale MDM CNR-INFM, 20041 Agrate Brianza (MI), Italy; Dipartimento di Scienza dei Materiali, Università di Milano Bicocca, Milano, Italy) ; Gíslason, H P (Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavík, Iceland) et al.
CERN-INTC-2010-003 ; INTC-P-275.
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2010.
Fulltext
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5.
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Emission Mössbauer spectroscopy of advanced materials for opto- and nano- electronics
/ Gunnlaugsson, HP (Department of Physics and Astronomy, Aarhus University, DK-8000 Århus C, Denmark) ; Ólafsson, S (Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavík, Iceland) ; Bharuth-Ram, K (iThemba LABS, P.O. Box 722, Somerset West 7129, South Africa) ; Correia, JG (Departamento Física, Instituto Tecnológico e Nuclear, Sacavém, Portugal) ; Gíslason, HP (Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavík, Iceland) ; Johnston, K (EP Division, CERN, CH-1211 Geneva 23, Switzerland) ; Langouche, G (Instituut voor Kern-en Stralings fysika, University of Leuven, B-3001 Leuven, Belgium) ; Madsen, MB (Niels Bohr Institute, Universtity of Copenhagen, DK-2100 Copenhagen Oe, Denmark) ; Mantovan, R (CNR-IMM MDM Laboratory, Via C. Olivetti 2, 20041 Agrate Brianza (MB), Italy) ; Masenda, H (School of Physics, University of the Witwatersrand, WITS 2050, South Africa) et al.
CERN-INTC-2012-005 ; INTC-P-275-ADD-1.
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2012.
Fulltext - Original Document (INTC-P-275)
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7.
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Hyperfine interactions in hydrogenated TiO2 thin films and powders for photocatalytic reactions
/ Zyabkin, Dmitry (Department of Materials for Electronics, Institute of Materials Science and Engineering, TU Ilmenau, Gustav-Kirchhoff-Strasse 5, 98693 Ilmenau, Germany) ; Schell, Juliana (EP Department, ISOLDE-CERN, CH-1211 Geneva 23, Switzerland, Institute for Materials Science and Centre for Nanointegration, Duisburg-Essen CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Lupascu, Doru C (Institute for Materials Science and Centre for Nanointegration, Duisburg-Essen CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Pall Gunnlaugson, Haraldur (Science Institute, University of Iceland, Dunhaga) ; Masenda, Hilary (School of Physics, University of the Witwatersrand, Johannesburg, 2050, South Africa) ; Mantovan, Roberto (Laboratorio MDM, IMM-CNR, Via Olivetti 2, 20864, Agrate Brianza (MB), Italy) ; Baruth Ram, Krish (Durban University of Technology, Durban, 4000, South Africa, School of Chemistry and Physics, University of KwaZulu-Natal, Durban, 4000, South Africa) ; Ólafsson, Sveinn (Science Institute University of Iceland) ; P Gíslason, Hafliði (Science Institute University of Iceland) ; Qi, Bing Cui (Science Institute University of Iceland) et al.
CERN-INTC-2018-004 ; INTC-P-535.
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2018.
Fulltext
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Computerised Control of the 6 MV EN-Tandem Accelerator
/ Andeweg, A H (SRCNS, Johannesburg) ; Connell, S H (SRCNS, Johannesburg) ; MacLear, R H (SRCNS, Johannesburg) ; Sellschop, J P Friedel (Univ. of Witwatersrand, Johannesburg, South Africa)
1999
Published version: PDF;
In : 7th Biennial International Conference on Accelerator and Large Experimental Physics Control Systems, Trieste, Italy, 4 - 8 Oct 1999, pp.e-proc. 663
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9.
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Probing Neutral Triple Gauge Couplings at the LHC and Future Hadron Colliders
/ Ellis, John (King's Coll. London ; CERN ; NICPB, Tallinn ; Tsung-Dao Lee Inst., Shanghai ; SKLPPC, Shanghai) ; He, Hong-Jian (Tsung-Dao Lee Inst., Shanghai ; SKLPPC, Shanghai ; Tsinghua U., Beijing ; Tsinghua U., Beijing, CHEP) ; Xiao, Rui-Qing (King's Coll. London ; Tsung-Dao Lee Inst., Shanghai ; SKLPPC, Shanghai)
We study probes of neutral triple gauge couplings (nTGCs) at the LHC and the proposed 100TeV $pp$ colliders, and compare their sensitivity reaches with those of the proposed $e^+ e^-$ colliders. The nTGCs provide a unique window to the new physics beyond the Standard Model (SM) because they can arise from SM effective field theory (SMEFT) operators that respect the full electroweak gauge group $SU(2)_L\otimes U(1)_Y$ of the SM only at the level of dimension-8 or higher. [...]
arXiv:2206.11676; KCL-PH-TH/2022-35; CERN-TH-2022-089.-
2023-02-01 - 57 p.
- Published in : Phys. Rev. D 107 (2023) 035005
Fulltext: 2206.11676 - PDF; Publication - PDF;
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10.
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Radiation hardness of plastic scintillators for the Tile Calorimeter of the ATLAS detector
/ Jivan, H (U. Witwatersrand, Johannesburg, Sch. Phys. ; Pretoria, CSIR) ; Mellado, B (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Sideras-Haddad, E (U. Witwatersrand, Johannesburg, Sch. Phys. ; Pretoria, CSIR) ; Erasmus, R (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Liao, S (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Madhuku, M (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Peters, G (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Solvyanov, O (CERN)
The radiation damage in polyvinyl toluene based plastic scintillator EJ200 obtained from ELJEN technology was investigated. This forms part of a comparative study conducted to aid in the upgrade of the Tile Calorimeter of the ATLAS detector during which the Gap scintillators will be replaced. [...]
2015 - 7 p.
- Published in : J. Phys.: Conf. Ser. 623 (2015) 012016
IOP Open Access article: PDF;
In : Kruger2014: The International Workshop on Discovery Physics at the LHC, Skukuza, Mpumulanga, South Africa, 1 - 5 Dec 2014, pp.012016
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