CPVHIGGSNMSXTRAD · A Study of CP-Violation In The Higgs Sector Of Supersymmetric Models
6РП — Действия „Мария Кюри“
- Период
- 2005-12-01 → 2007-06-30
- Финансиране от ЕС
- 170 500 €
- Участници
- 1
- Схема
- IIF
Линиите свързват координатора с партньорите.
Накратко на български
Свойствата на Хигс бозона в суперсиметричните модели се анализират чрез разпада му на два фотона. Това помага да се разграничат процесите, при които се нарушава CP-симетрията, от тези, при които тя се запазва, чрез данни от Големия адронен колайдер.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Резултати накратко
Final Activity Report Summary - CPVHIGGSNMSXTRAD (A Study of CP-Violation In The Higgs Sector Of Supersymmetric Models)
The main objective of the project was the study of Higgs sector in the Minimal as well as Non-Minimal Supersymmetric Standard Model (MSSM as well as NMSSM) with definite signatures that will distinguish the CP-violating case from the CP-conserving one and could be experimentally probed at the forthcoming Large Hadron Collider (LHC). In this regard, we have been able to establish the importance of the di-photon decay of a light Higgs of mass within the range from about 80 GeV to about 130 GeV. Within a scenario where the particle masses are measured elsewhere, we have established that this process is capable of probing CP-violating H1-stop-stop couplings and one is able to disentangle its contribution from that of the Standard Model contribution. Further, our preliminary analyses of the gluon-fusion Higgs production channel at the LHC along with its di-photon decay shows that for at least some regions of the parameter space CP-violating effects in production, propagation and decay combined can give a highly enhanced or suppressed event rate with respect to the CP-conserving case.
Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз
Цел на проекта
Models of Supersymmetry (SUSY) based on a minimal representation of the Higgs sector, involving only two Higgs-doublet fields, are flawed by the presence of a dimensionful parameter entering the fundamental Langrangian that bears no connection with the energy scale where SUSY ensures unification among the fundamental forces of nature and that is unrelated to any of the fields entering the model. Nevertheless, most of the phenomenological studies carried out so far for the Large Hadron Collider (LHC) and a future Linear Collider (LC) have been based on the Minimal Supersymmetric Standard Model (MSSM). New analyses now need to be performed in the case of non-minimal SUSY scenarios such as the Next-to-MSSM (NMSSM). The matter is manifestly pressing if one further recalls that SUSY-induced CP-violation can lead to dramatic effects onto the Higgs mass spectra as well as its production and decay channels relevant to the physics of such machines. This has already been proven to be true in the MSSM and its impact may well be even more spectacular in the case of the NMSSM. We intend to study the phenomenological consequences of a non-minimal Higgs sector in presence of explicit CP-violation at the above mentioned colliders.
Оригинален текст от CORDIS (на английски).
Участници
- UNIVERSITY OF SOUTHAMPTON · SOUTHAMPTONКоординаторОбединеното кралство
Връзки
Данни: CORDIS, © Европейски съюз