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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)

List of Articles
No. Category Subject Author Date
Notice Journal Club Journal Club Schedule Sanghyeon 2017.07.07
Notice Research Papers Link to the publications Sanghyeon 2017.04.27
Notice PTC Seminar Use the indico link for the seminar announcements. Sanghyeon 2017.04.27
78 PTC Seminar [Seminar] (Mar 22 2016) by Hwidong Yoo on 'Search for leptophobic Z’ decaying into four leptons in the final state at 8 TeV with the CMS detector' Andrew 2016.03.16
77 Journal Club [Journal Club] (Mar 10 2016) by Doh Young Mo on 'Introduction of Jet-Image: New Method for Jet Tagging' file mo 2016.03.11
76 PTC Seminar [Seminar] (Feb 25 2016) by Masahiro Takimoto on 'Cosmology of Peccei-Quinn Field in Early Universe' file Min-Seok 2016.02.25
» PTC Seminar [Seminar] (Feb 24 2016) by Pyungwon Ko on <Dark sector shining through 750GeV dark higgs @ LHC> file Min-Seok 2016.02.24
74 PTC Seminar [Seminar] (Feb 18 2016) by Koichi Hamaguchi on <Diphoton Excess and Running Couplings> file ctpuweb 2016.02.18
73 PTC Seminar [Seminar] (Feb 05 2016) by Priyotosh Bandyopadhyay on <Higgs bosons: discovered and hidden, in extended supersymmetric standard models at the LHC> file ctpuweb 2016.02.05
72 Journal Club [Journal Club] (Feb 04 2016) by Kunio Kaneta on `Isocurvature constraints on portal couplings' ctpuweb 2016.02.04
71 Journal Club [Journal Club] (Jan 28 2016) by Sang Hui Im file Sanghui 2016.01.28
70 Journal Club [Journal Club] (Jan 21 2016) by Ryoutaro Watanabe file Ryoutaro 2016.01.21
69 Conference / Workshop [School] 2016 Winter School on Collider Physics file ctpuweb 2016.01.15
68 Conference / Workshop [Workshop] Overview on the Recent Diphoton Excess at the LHC Run-II (Jan 08 2016) ctpuweb 2016.01.15
67 Conference / Workshop [Workshop] Non-conventional Searches at the LHC (IBS-CTPU Focused Workshop) (Aug 17-20 2015) ctpuweb 2016.01.15
66 PTC Seminar [Seminar] (Jan 13 2016) by Hiroyuki Tashiro on Search for parity-odd signatures in the gamma ray sky file Min-Seok 2016.01.13
65 PTC Seminar [Seminar] (Jan 12 2016) by Takashi Okamoto on Small-scale problems of cold dark matter model and baryonic solutions to them file Min-Seok 2016.01.12
64 PTC Seminar [Seminar] (Jan 11 2016) by Chang Sub Shin on A complete, calculable, predictive and testable model for all known and required CP violation file Min-Seok 2016.01.11
63 Journal Club [Journal Club] (Dec 10 2012) by Hyungjin Kim file Hyungjin 2015.12.10
62 PTC Seminar [Seminar] (Dec 08 2015) by Paolo Gondolo on Dark Mattert Searches: A Theorest's Perspective file Min-Seok 2015.12.08
61 Journal Club [Journal Club] (Nov 26 2015) by Toyokazu Sekiguchi file Toyo 2015.11.27
60 PTC Seminar [Seminar] (Nov 20 2015) by Jae Sik Lee on Enhanced Charged Higgs Production through W±-Higgs Fusion file Min-Seok 2015.11.20
59 PTC Seminar [Seminar] (Oct 28 2015) by Naonori Sugiyama on <Theoretical Modeling of Cosmological Momentum Field through the Kinetic SZ Effect> file Min-Seok 2015.11.04
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