Yonsei University

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing 2017 · hep-phShow all

22 papers · 2 filters

hep-ph2017★ 83 cited

Inelastic Boosted Dark Matter at Direct Detection Experiments

Gian F. Giudice, Doojin Kim, Jong-Chul Park +1

We explore a novel class of multi-particle dark sectors, called Inelastic Boosted Dark Matter (iBDM). These models are constructed by combining properties of particles that scatter…

hep-ph2017★ 12 cited

Mass shift of charmonium states in $p ˉ A$ collision

Gy. Wolf, G. Balassa, P. Kovács +2

The masses of the low lying charmonium states, namely, the $J /Ψ$ , $Ψ (3686)$ , and $Ψ (3770)$ are shifted downwards due to the second order Stark effect. In $p ˉ + Au$ colli…

hep-ph2017★ 84 cited

Probing Leptogenesis

E. J. Chun, G. Cvetič, P. S. B. Dev +12

The focus of this chapter lies on the possible experimental tests of leptogenesis scenarios. We consider both leptogenesis generated from oscillations, as well as leptogenesis from…

hep-ph2017★ 42 cited

Probing new intra-atomic force with isotope shifts

Kyoko Mikami, Minoru Tanaka, Yasuhiro Yamamoto

In the development of atomic clocks, some atomic transition frequencies are measured with remarkable precision. These measured spectra may include effects of a new force mediated b…

hep-ph2017★ 8 cited

Features of $ω$ photoproduction off nucleon target at forward angles : Dominance of $π$ exchange with Regge cuts and scaling of differential cross sections

Byung-Geel Yu, Tae Keun Choi, Kook-Jin Kong

We investigate photoproduction of $ω$ off a nucleon target $γ N \to ω N$ by using a Reggeized model where $π (135) + σ (500) + f_{1} (1285) + f_{2} (1270)$ +Pomeron exchanges are included in the $t$ -…

hep-ph2017★ 18 cited

Discovering intermediate mass sterile neutrinos through $τ^{-} \to π^{-} μ^{-} e^{+} ν$ (or $ν ˉ$ ) decay

C. S. Kim, G. López Castro, Dibyakrupa Sahoo

Distinguishing the Dirac and Majorana nature of neutrinos remains one of the most important tasks in neutrino physics. By assuming that the $τ^{-} \to π^{-} μ^{-} e^{+} ν$ (or $ν ˉ$ ) dec…

hep-ph2017★ 1 cited

Prediction of the $C P$ asymmetry $C_{00}$ in $B^{0} \to D^{0} D^{0}$ decay

Dibyakrupa Sahoo, Hai-Yang Cheng, Cheng-Wei Chiang +2

Of all $B \to D D$ decays, the $B^{0} \to D^{0} D^{0}$ decay has the smallest observed branching ratio as it takes place primarily via the suppressed $W$ -exchange d…

hep-ph2017★ 7 cited

Atomki anomaly and the Secluded Dark Sector

Yasuhiro Yamamoto

The Atomiki anomaly can be interpreted as a new light vector boson. If such a new particle exists, it could be a mediator between the Standard Model sector and the dark sector incl…

hep-ph2017★ 27 cited

Clockwork seesaw mechanisms

Seong Chan Park, Chang Sub Shin

We propose new mechanisms for small neutrino masses based on clockwork mechanism. The Standard Model neutrinos and lepton number violating operators communicate through the zero mo…

hep-ph2017★ 6 cited

Heptaquarks with two heavy antiquarks in a simple chromomagnetic model

Aaron Park, Woosung Park, Su Houng Lee

We investigate the symmetry property and the stability of the heptaquark containing two identical heavy antiquarks using color-spin interaction. We construct the wave function of t…

hep-ph2017★ 25 cited

Sensitivity limits on heavy-light mixing $∣ U_{μ N} ∣^{2}$ from lepton number violating $B$ meson decays

Gorazd Cvetic, C. S. Kim

We consider the lepton number violating decays $B \to μ^{\pm} μ^{\pm} π^{\mp}$ and $B \to D^{(*)} μ^{\pm} μ^{\pm} π^{\mp}$ which may be detected at LHCb and Belle-II experiments; a…

hep-ph2017★ 5 cited

Evaluation of CKM matrix elements from exclusive $P_{ℓ 4}$ decays

C. S. Kim, G. López Castro, S. L. Tostado

We consider the exclusive $P_{ℓ 4}$ decays, $P \to (P_{1} P_{2})_{V} ℓ ν_{ℓ}$ , where the subindex $V$ means that the invariant mass of the pseudoscalar pair is taken within a small…

hep-ph2017★ 77 cited

Constraining Sterile Neutrinos from Precision Higgs Data

Arindam Das, P. S. Bhupal Dev, C. S. Kim

We use the LHC Higgs data to derive updated constraints on electroweak-scale sterile neutrinos that naturally occur in many low-scale seesaw extensions of the Standard Model to exp…

hep-ph2017★ 1 cited

Wilson coefficients of dimension 6 gluon operators with spin indices in the heavy quark current correlation functions

HyungJoo Kim, Su Houng Lee

We calculate the Wilson coefficients of dimension 6 gluon operators with spin indices in the two point correlation function of the heavy scalar, pseudoscalar, and axialvector curre…

hep-ph2017★ 13 cited

Light vector correlator in medium: Wilson coefficients up to dimension 6 operators

HyungJoo Kim, Philipp Gubler, Su Houng Lee

As an improvement of the QCD sum rule method to study modifications of light vector mesons in nuclear matter and/or at finite temperature, we calculate the Wilson coefficients of a…

hep-ph2017★ 17 cited

Search for Heavy Sterile Neutrinos in Trileptons at the LHC

Claudio O. Dib, C. S. Kim, Kechen Wang

We present a search strategy for both Dirac and Majorana sterile neutrinos from the purely leptonic decays of $W^{\pm} \to e^{\pm} e^{\pm} μ^{\mp} ν$ and $μ^{\pm} μ^{\pm} e^{\mp} ν$ at the 14 Te…

hep-ph2017★ 25 cited

Signatures of Dirac and Majorana Sterile Neutrinos in Trilepton Events at the LHC

Claudio O. Dib, C. S. Kim, Kechen Wang

Heavy sterile neutrinos with masses below $M_{W}$ can induce trilepton events at the 14 TeV LHC through purely leptonic $W$ decays of $W^{\pm} \to e^{\pm} e^{\pm} μ^{\mp} ν$ and $μ^\pm μ^\pm…

hep-ph2017★ 42 cited

Anomalies in (semi)-leptonic $B$ decays $B^{\pm} \to τ^{\pm} ν$ , $B^{\pm} \to D τ^{\pm} ν$ and $B^{\pm} \to D^{*} τ^{\pm} ν$ , and possible resolution with sterile neutrino

G. Cvetič, Francis Halzen, C. S. Kim +1

The universality of the weak interactions can be tested in semileptonic $b \to c$ transitions, and in particular in the ratios $R(D^{(*)}) \equiv Γ(B \rightarrow D^{(*)} τν)/Γ(B \r…

hep-ph2017★ 24 cited

Electroweak Kaluza-Klein Dark Matter

Thomas Flacke, Dong Woo Kang, Kyoungchul Kong +2

In models with universal extra dimensions (UED), the lightest Kaluza-Klein excitation of neutral electroweak gauge bosons is a stable, weakly interacting massive particle and thus…

hep-ph2017★ 18 cited

Dark Matter "Transporting" Mechanism Explaining Positron Excesses

Doojin Kim, Jong-Chul Park, Seodong Shin

We propose a novel mechanism to explain the positron excesses, which are observed by satellite-based telescopes including PAMELA and AMS-02, in dark matter (DM) scenarios. The nove…

hep-ph2017★ 31 cited

$P_{c} (4380)$ in a constituent quark model

Woosung Park, Aaron Park, Sungtae Cho +1

The constituent quark model with color-spin hyperfine potential is used to investigate the property of a compact pentaquark configuration with $J^{p}$ = $3/ 2^{-}$ and isospin=1/2, which…

hep-ph2017★ 31 cited

Di-higgs enhancement by neutral scalar as probe of new colored sector

Koji Nakamura, Kenji Nishiwaki, Kin-ya Oda +2

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…