Yonsei University

output

19932026

most citedFirst M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole

4.3k citations

researchers with a paper here

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

collaborating institutions

Showing 1999 · hep-phShow all

11 papers · 2 filters

hep-ph1999

Search for New Physics in the Semileptonic D_{l4} Decays, D->K πl ν

C. S. Kim, Jake Lee, W. Namgung

New physics effects through the direct CP violation and the decay rate change are investigated in the semileptonic $D_{l 4}$ decays, $D^{\pm} \to K π l^{\pm} ν$ , by including a scalar-exch…

hep-ph1999

Multiquark picture for Lambda(1405) and Sigma(1620)

Seungho Choe

We propose a new QCD sum rule analysis for the Lambda(1405) and the Sigma(1620). Using the I=0 and I=1 multiquark sum rules we predict their masses.

hep-ph1999★ 60 cited

A Systematic Analysis of the Exclusive B -> K^* l^+ l^- Decay

T. M. Aliev, C. S. Kim, Y. G. Kim

A model-independent analysis for the exclusive, rare B -> K^* l^+ l^- decay is presented. Systematically studied are the experimentally measured quantities, such as, branching rati…

hep-ph1999★ 77 cited

A Systematic Analysis of the Lepton Polarization Asymmetries in the Rare B Decay, B -> X_sτ^+τ^-

S. Fukae, C. S. Kim, T. Yoshikawa

The most general model-independent analysis of the lepton polarization asymmetries in the rare B decay, $\Bstt$, is presented. We present the longitudinal, normal and transverse po…

hep-ph1999★ 13 cited

Hierarchical Quark Mixing and Bimaximal Lepton Mixing on the Same Footing

C. S. Kim, J. D. Kim

We show that not only the hierarchical quark CKM mixing matrix but also the "bimaximal" lepton flavor mixing matrix can be derived from the same mass matrix ansatz based on the bro…

hep-ph1999★ 14 cited

Heavy Majorana neutrino production at electron-muon colliders

G. Cvetic, C. S. Kim

Possibilities for detecting heavy Majorana neutrinos ( $N$ 's) at future $e μ$ colliders are investigated. In contrast to the $e^{-} e^{+}$ colliders (LEP200 and NLC), the center-of-mass (…

hep-ph1999★ 31 cited

New Physics Effects in $B \to K^{(} *) ν ν$ Decays

C. S. Kim, Yeong Gyun Kim, T. Morozumi

We present a model-independent analysis of rare B decays, $B \to K^{(*)} ν ν$ . The effect of possible new physics is written in terms of dimension-6 four-fermi interactions. The lep…

hep-ph1999★ 3 cited

Searching for New Physics in the b->d FCNC using B_s^0(t)->ϕK_s and B_d^0(t)->K^0\bar{K}^0

C. S. Kim, D. London, T. Yoshikawa

Time-dependent measurements of the decays B_s^0(t)-->ϕK_s and B_d^0(t) --> K^0 \bar{K}^0 can be used to compare the weak phases of B_d^0-\bar{B}_d^0 mixing and the t-quark contribu…

hep-ph1999★ 10 cited

$b \to s γ$ decays in the Left-Right Symmetric Model

C. S. Kim, Yeong Gyun Kim

We consider $b \to s γ$ decays in the Left-Right Symmetric Model. Values of observables sensitive to chiral structure such as the $Λ$ polarization in the $Λ_{b} \to Λ γ$ decays and th…

hep-ph1999★ 3 cited

CP Violation in the Semileptonic B_{l4} (B^\pm -> pi^+ π^- l^\pm ν) Decays

C. S. Kim, Jake Lee, W. Namgung

Direct CP violations in $B_{l 4}$ decays ( $B^{\pm} \to π^{+} π^{-} l^{\pm} ν_{l}$ ) are investigated within the Standard Model (SM) and also in its extensions. In the decay processes, we includ…

hep-ph1999★ 22 cited

Stop Squark Search at Tevatron in the Light Slepton Scenario

Aseshkrishna Datta, Monoranjan Guchait, Kyoung Keun Jeong

In minimal supergravity based supersymmetry models the charged sleptons as well as the sneutrinos may be lighter than the squarks. In such light slepton scenario the search for lig…