Upcoming Events

High Luminosity e+ e- and Gamma Gamma Colliders to Study the Higgs Boson - LEP3 and SAPPHIRE

January 30, 2013 11:00AM to 12:00PM
Mayda Velasco, Northwestern University
Building 362, Room F108
HEP Division Seminar
Refreshments served at 10:45 a.m.

The LHC experiments observed a new particle of mass around 125 GeV, candidate for the scalar Higgs boson. An e+e- collider operating close to the ZH threshold or a low-energy gamma-gamma collider are cost- and time-efficient options for a Higgs factory capable of studying this particle in detail. First, I will present the concept of a storage ring collider, which we call LEP3 operating at a centre-of-mass energy of 240 GeV and with a near-constant luminosities of 10^34 cm^{-2}s^{-1}. Followed by a presentation of the SAPPHIRE parameters for the e- beams and sketch a laser backscattering system capable of producing a gamma-gamma peak luminosity of 0.36 x 10^34/cm2/s with E_CM (gamma-gamma) sim 125 GeV.