Hightone-P
The Higgs boson not only enables generation of masses in the Standard Model, but it represents a unique particle with no analogy in Nature despite the fact that a phenomenon of spontaneous symmetry breaking occurs elsewhere. In the recently released Update of the European Strategy for Particle Physics, Higgs-factory future colliders are seen as the highest-priority in the field.
With this Project, we would like to address the Higgs physics at the future electron-positron colliders CEPC, ILC and CLIC, all foreseen to run as Higgs factories. The focus of the Project will be on a novel topic of CP violation in the Higgs sector at CLIC, ILC and CEPC, delivering World’s first results of Higgs factories’ capabilities to measure it. Along the way, measurement of the Higgs to electroweak bosons couplings at CEPC will be advanced in order to meaningfully compare capabilities of future circular e+e- colliders with the well understood linear machines. Specific requirements for future detectors at electron-positron colliders will be derived from the foreseen Higgs studies, which is again considered by the European Strategy as ‘the essential scientific activity for particle physics’. In addition, a concept of an innovative software tool will be delivered in the course of the Project. The innovation will be based on machine learning techniques heavily used in Higgs measurements, to be applied in industry for decision making in logistics.
With the innovative CP violation studies accompanied by detector R&D, the Project will deliver comprehensive insight into capabilities of future Higgs factories to address one of the Universe greatest mysteries – preponderance of matter over antimatter.
TOPICS
Fundamental research in high energy physics – future colliders
RESULTS
8 published papers in international scientific journals, 19 conference proceedings, 1 PhD thesis…
WORKSHOPS
– International Workshop on Future Linear Colliders (LCWS 2021), 15-18 March 2021, CERN, Switzerland
– Corfu Summer Institute 2021 “School and Workshops on Elementary Particle Physics and Gravity”, 29 August 9 October 2021, Corfu, Greece – The 2022 International Workshop on the High Energy Circular Electron Positron Collider, Nanjing, China – First ECFA Workshop on e+e- Higgs/EW/Top factories, October 5 – 7, 2022, DESY, Hamburg, Germany – International Workshop on Future Linear Colliders (LCWS2023), 15-19 May 2023, SLAC, Stanford – The 2023 International Workshop on the Circular Electron Positron Collider, European Edition, University of Edinburgh 3–6 July 2023 – CEPC Workshop EU edition, April 2024, Marseille, FranceCONFERENCES
– European Physical Society Conference on High Energy Physics 2021 (EPS-HEP2021), Online conference, July 26-30, 2021
– 19th Lomonosov Conference on Elementary Particle Physics, 22-28 August 2019, Moscow, Russia – 40th International Conference on High Energy physics, 28. July – 6. August 2020, Prague, Czech Republik – 9th International Conference on New Frontiers in Physics, 4-12 September 2020, Crete, Greece – The 30th International Symposium on Lepton Photon Interactions at High Energies (Lepton Photon 2021), January 10-14, 2022, University of Manchester – International Conference on High Energy Physics (ICHEP 2022), Bologna, Italy, 6-13 July, 2022 – 16. International Conference on Data Sciences, Technologies and Applications, 6-7 October 2022, (online) – HIGGS 2022 PISA, Italy, 6-11 November 2022 – 11th International Conference of the Balkan Physical Union 28 August – 1 September 2022, Belgrade, Serbia – XI International Conference on New Frontiers in Physics (ICNFP 2022) 30 August – 12 September 2022, Crete – 31st International Symposium on Lepton Photon Interactions at High Energies, Jul 17 – 21, 2023, Melbourne, Australia – EPS-HEP 2023, 21-25 August 2023, Hamburg, Germany – 42nd International Conference on High Energy Physics (ICHEP 2024) 18-24 July 2024, Prague, Czech RepublicIDEAS2020
HIGHTONE-P (2022-2024)
The first ranked project in physics and third in natural sciences in the call IDEAS by the Science Fund of the Republic of Serbia. The project was focused on Higgs physics as a tool to access the New physics, primarily through the Higgs couplings measurements, One of the results of HIGHTONE-P has opened a new scientific topic related to violation of CP symmetry in the Higgs interactions. We have published the first full simulation of measurement of the Higgs CP-odd coupling to Z bosons, in vector boson fusion production vertex at a future Higgs factory (Phys. Rev. D 110, 032011 (2024)).
RESULTS
The project has delivered 5 papers in leading international journals (M21), 4 M23 papers mostly based on invited talks at international conferences, 11 proceedings from international HEP conferences and a PhD thesis.
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DISSEMINATION
Results of the project were disseminated in 11 arXiv documents and 5 talks given at international meetings and conferences (without published proceedings). more2
COMMUNICATION
The project communicated its research together with the science in general through one seminar given at the Vinca Institute and sciences festivals in Belgrade, Smederevska Palanka and Požega.
HIGGS BOSON: A PORTAL TO NEW PHYSICS
Acronym: HIGHTONE-P
Sub-program: PHYSICS, PARTICLES&FIELDS
Participating Scientific and Research Organizations (SROs): ‘’VINČA’’ Institute of Nuclear Sciences – National Institute of the Republic of Serbia, University of Belgrade (VINS) and Faculty of Science, University of Kragujevac (FSUKG)
Principal Investigator: Dr. Ivanka Bozovic Jelisavcic, Principal Research Fellow, VINS
Abstract: The Higgs boson not only enables generation of masses in the Standard Model, but it represents a unique particle with no analogy in Nature despite the fact that a phenomenon of spontaneous symmetry breaking occurs elsewhere. In the recently released Update of the European Strategy for Particle Physics, Higgs-factory future colliders are seen as the highest-priority in the field.
With this Project, we would like to address the Higgs physics at the future electron-positron colliders CEPC, ILC and CLIC, all foreseen to run as Higgs factories. The focus of the Project will be on a novel topic of CP violation in the Higgs sector at CLIC, ILC and CEPC, delivering World’s first results of Higgs factories’ capabilities to measure it. Along the way, measurement of the Higgs to electroweak bosons couplings at CEPC will be advanced in order to meaningfully compare capabilities of future circular e+e- colliders with the well understood linear machines. Specific requirements for future detectors at electron-positron colliders will be derived from the foreseen Higgs studies, which is again considered by the European Strategy as ‘the essential scientific activity for particle physics’. In addition, a concept of an innovative software tool will be delivered in the course of the Project. The innovation will be based on machine learning techniques heavily used in Higgs measurements, to be applied in industry for decision making in logistics.
With the innovative CP violation studies accompanied by detector R&D, the Project will deliver comprehensive insight into capabilities of future Higgs factories to address one of the Universe greatest mysteries – preponderance of matter over antimatter.


