Abstract
We study a class of models in which the Higgs pair production is enhanced at hadron colliders by an extra neutral scalar. The scalar particle is produced by the gluon fusion via a loop of new colored particles, and decays into di-Higgs through its mixing with the Standard Model Higgs. Such a colored particle can be the top/bottom partner, such as in the dilaton model, or a colored scalar which can be triplet, sextet, octet, etc., called leptoquark, diquark, coloron, etc., respectively. We examine the experimental constraints from the latest Large Hadron Collider (LHC) data, and discuss the future prospects of the LHC and the Future Circular Collider up to 100 TeV. We also point out that the 2.4σ excess in the bb¯ γγ final state reported by the ATLAS experiment can be interpreted as the resonance of the neutral scalar at 300 GeV.
| Original language | English |
|---|---|
| Article number | 273 |
| Journal | European Physical Journal C |
| Volume | 77 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2017 May 1 |
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All Science Journal Classification (ASJC) codes
- Engineering (miscellaneous)
- Physics and Astronomy (miscellaneous)
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Di-Higgs enhancement by neutral scalar as probe of new colored sector. / Nakamura, Koji; Nishiwaki, Kenji; Oda, Kin ya; Park, Seong Chan; Yamamoto, Yasuhiro.
In: European Physical Journal C, Vol. 77, No. 5, 273, 01.05.2017.Research output: Contribution to journal › Article
TY - JOUR
T1 - Di-Higgs enhancement by neutral scalar as probe of new colored sector
AU - Nakamura, Koji
AU - Nishiwaki, Kenji
AU - Oda, Kin ya
AU - Park, Seong Chan
AU - Yamamoto, Yasuhiro
PY - 2017/5/1
Y1 - 2017/5/1
N2 - We study a class of models in which the Higgs pair production is enhanced at hadron colliders by an extra neutral scalar. The scalar particle is produced by the gluon fusion via a loop of new colored particles, and decays into di-Higgs through its mixing with the Standard Model Higgs. Such a colored particle can be the top/bottom partner, such as in the dilaton model, or a colored scalar which can be triplet, sextet, octet, etc., called leptoquark, diquark, coloron, etc., respectively. We examine the experimental constraints from the latest Large Hadron Collider (LHC) data, and discuss the future prospects of the LHC and the Future Circular Collider up to 100 TeV. We also point out that the 2.4σ excess in the bb¯ γγ final state reported by the ATLAS experiment can be interpreted as the resonance of the neutral scalar at 300 GeV.
AB - We study a class of models in which the Higgs pair production is enhanced at hadron colliders by an extra neutral scalar. The scalar particle is produced by the gluon fusion via a loop of new colored particles, and decays into di-Higgs through its mixing with the Standard Model Higgs. Such a colored particle can be the top/bottom partner, such as in the dilaton model, or a colored scalar which can be triplet, sextet, octet, etc., called leptoquark, diquark, coloron, etc., respectively. We examine the experimental constraints from the latest Large Hadron Collider (LHC) data, and discuss the future prospects of the LHC and the Future Circular Collider up to 100 TeV. We also point out that the 2.4σ excess in the bb¯ γγ final state reported by the ATLAS experiment can be interpreted as the resonance of the neutral scalar at 300 GeV.
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U2 - 10.1140/epjc/s10052-017-4835-4
DO - 10.1140/epjc/s10052-017-4835-4
M3 - Article
AN - SCOPUS:85018739311
VL - 77
JO - European Physical Journal C
JF - European Physical Journal C
SN - 1434-6044
IS - 5
M1 - 273
ER -