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* Title: Dark sector shining through 750 GeV dark Higgs boson at the LHC

* Speaker: Pyongwon Ko(KIAS)

* Date: 3:00 PM, February 24 2016

* Place: CTPU Seminar Room, KAIST Munji Campus


* Abstract: We consider a dark sector with SU(3)C×U(1)Y×U(1)X and three families of dark fermions that are chiral under dark U(1)X gauge symmetry, whereas scalar dark matter X is the SM singlet. U(1)X dark symmetry is spontaneously broken by nonzero VEV of dark Higgs field 〈Φ〉, generating the masses of dark fermions and dark photon Z. The resulting dark Higgs boson ϕ can be produced at the LHC by dark quark loop (involving 3 generation) and will decay into a pair of photon through charged dark fermion loop. Its decay width can be easily 45 GeV due to its possible decays into a pair of dark photon, which is not strongly constrained by the current LHC searches pp→ϕ→ZZfollowed by Zdecays into the SM fermion pairs. The scalar DM can achieve thermal relic density without conflict with direct detection bound or the invisible ϕ decay into a pair of DM.


PTC Seminar / Journal Club / Workshop

PTC Seminar Organizers (click to contact) :
Chang Sub Shin     Jeff Kost     Dongjin Chway
PTC Seminar Schedule (click)

PTC Journal Club Organizer (click to contact) :
-  Di Xu
PTC Journal Club Schedule (click)

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