5. Theoretical Physics (CSN4)

Win-Win for LHC and CERN

by Yogendra Narain Srivastava (Northeastern University, Boston, U.S.A.)

Aula Seminari (Laboratori Nazionali di Frascati)

Aula Seminari

Laboratori Nazionali di Frascati


Dark matter implies that SM extrapolations through the renormalization group (RG) - that have worked very well so far upto LHC energies- must break down at some higher energy. Under the caveat of no physics beyond the SM, F.Jegerlehner extrapolated the two-loop RG results beyond the electro-weak scale and found that the quadratically divergentmass shift between the bare and renormalized Higgs mass has a zero at a mass three orders of magnitude lower than the Planck mass (used as a cut-off). This is truly remarkable because it implies an unexpected very high energy mass scale (that is close to the unificationmass scale in addition). From a completely different view, we have obtained a similar mass scale through the Trimble plot (J vs. M) ofastrophysical objects. We discuss the implied win-win situation for LHC/CERN for testing both the hypotheses of dark matter or no dark matter.