ابرتقارن

سمینار عمومی

موضوع: کجا به دنبال ابرتقارن طبیعی بگردیم

سخنران: دکتر شهو عبدالسلام(دانشگاه رم، ایتالیا)

زمان: سه شنبه ۲۱ مهر ۹۴ ساعت ۱۵ الی ۱۶

مکان: دانشگاه شهید بهشتی، دانشکده فیزیک، تالار ابن هیثم

Shehu S AbdusSalam

Dipartimento di Fisica

Universit´a degli Studi di Roma “La Sapienza”, Italy

Where to look for natural supersymmetry

Why is natural supersymmetry neither detected nor ruled-out to date? To answer this question

we use the Bayesian approach where the emphasis on finding prior-independent features within

broader and minimally biased frames is taken as the guiding principle. The 20-parameter minimal

supersymmetric standard model (MSSM) fits to subjective naturalness indicate the existence of a

prior-independent upper bound on the pseudoscalar Higgs boson mass mA as a function of

the ratio of the vacuum expectation values of MSSM doublets. Removing the contradictory subjectiveness

leads to finding the naturalness line that reduces by one the number of MSSM Higgs

sector free parameters. As an example, imposing the naturalness line to the posterior sample of a

۳۰-parameter MSSM shows that  TeV and   at 95% Bayesian confidence.