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pro vyhledávání: '"Park, Chan Beom"'
Kinematic variables designed for pairwise decays to partly undetected final states -- a prominent example being $M_{T2}$ and its Lorentz-invariant version $M_2$ -- have been extensively deployed in high-$p_T$ collider searches. A new range of potenti
Externí odkaz:
http://arxiv.org/abs/2209.03387
Autor:
Park, Chan Beom
Publikováno v:
JHEP 11 (2021) 042
The algebraic singularity method is a framework for analyzing collider events with missing energy. It provides a way to draw out a set of singularity variables that can catch singular features originating from the projection of full phase space onto
Externí odkaz:
http://arxiv.org/abs/2108.13820
New particles $\phi$ in the MeV-GeV range produced at colliders and escaping detection can be searched for at operating $b-$ and $\tau-$factories such as Belle II. A typical search topology involves pair-produced $\tau$s (or mesons), one of which dec
Externí odkaz:
http://arxiv.org/abs/2106.16236
Publikováno v:
JHEP 10 (2021) 064
The new measurement of the anomalous magnetic moment of muon at the Fermilab Muon $g-2$ experiment has strengthened the significance of the discrepancy between the standard model prediction and the experimental observation from the BNL measurement. I
Externí odkaz:
http://arxiv.org/abs/2106.04238
Autor:
Jeong, Kwang Sik, Park, Chan Beom
Publikováno v:
Phys.ReV.D 104 (2021) 11, 115028
Mirage mediation realized in the Kachru-Kallosh-Linde-Trivedi (KKLT) flux compactification can naturally suppress the up-type Higgs soft mass at low energy scales. As a result, compared to the conventional scenarios, the degree of electroweak fine-tu
Externí odkaz:
http://arxiv.org/abs/2011.11993
We investigate the role of a local $U(1)'$ symmetry for the problem of CP violation in the effective theory for two Higgs doublet models and its microscopic counterparts. First, in two Higgs doublet models with $U(1)'$, we show that the higher-dimens
Externí odkaz:
http://arxiv.org/abs/2008.03629
Autor:
Park, Chan Beom
Publikováno v:
Comput. Phys. Commun. 264 (2021) 107967
The $M_2$ variables are devised to extend $M_{T2}$ by promoting transverse masses to Lorentz-invariant ones and making explicit use of on-shell mass relations. Unlike simple kinematic variables such as the invariant mass of visible particles, where t
Externí odkaz:
http://arxiv.org/abs/2007.15537
Autor:
Park, Chan Beom
Publikováno v:
JHEP 07 (2020) 089
The phase space of visible particles in missing energy events may have singularity structures. The singularity variables are devised to capture the singularities effectively for given event topology. They can greatly improve the discovery potential o
Externí odkaz:
http://arxiv.org/abs/2005.12297
Publikováno v:
Eur.Phys.J. C79 (2019) no.11, 956
Physics beyond the Standard Model (SM) may manifest itself as small deviations from the SM predictions for Higgs signal strengths at 125 GeV. Then, a plausible and interesting possibility is that the Higgs sector is extended and at the weak scale the
Externí odkaz:
http://arxiv.org/abs/1906.03389
We investigate the collider signatures of the three benchmark points in the singlet fermionic dark matter model. The benchmark points, which were introduced previously to explain the Fermi gamma-ray excess by dark matter (DM) pair annihilation at the
Externí odkaz:
http://arxiv.org/abs/1809.01143