4.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Seoul National UniversityKR1.2k papers
- The University of TokyoJP1.2k papers
- Panjab UniversityIN1.2k papers
- Centre National de la Recherche ScientifiqueFR1.1k papers
- Sungkyunkwan UniversityKR1.1k papers
- Wayne State UniversityUS990 papers
- Korea UniversityKR986 papers
- National Taiwan UniversityTW970 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT941 papers
- Kyungpook National UniversityKR930 papers
- University of Science and Technology of ChinaCN930 papers
- University of Tennessee at KnoxvilleUS920 papers
19 papers · 2 filters
Has the general two-Higgs-doublet model unnatural FCNC suppression? An RGE analysis
G. Cvetic, S. S. Hwang, C. S. Kim
There is a widespread belief that the general two-Higgs-doublet model (G2HDM) behaves unnaturally with respect to evolution of the flavor-changing neutral Yukawa coupling parameter…
A New Mechanism for in Perturbative QCD
Dongsheng Du, C. S. Kim, Yadong Yang
We present a new mechanism for , and analyze it strictly within perturbative QCD. We find that such a new mechanism may dominate non-leptonic -decays to l…
Implications of the recent CERN LEP data on nonuniversal interactions with the precision electroweak tests
Kang Young Lee
We explore the nonuniversal interaction effects in terms of the precision variables epsilons with the recent LEP data reported by the Electroweak Working Group. The epsilon variabl…
Four-quark Operators Relevant to B Meson Lifetimes from QCD Sum Rules
M. S. Baek, Jungil Lee, Chun Liu +1
At the order of 1/m_b^3, the B meson lifetimes are controlled by the hadronic matrix elements of some four-quark operators. The nonfactorizable magnitudes of these four-quark opera…
A Few Notes on Non-perturbative Parameters in Heavy Quark Expansion
Chao-shang Huang, C. S. Kim
Non-perturbative parameters to the order in HQET expansion, , and , as well as the masses, and , are estimated phenomenolo…
Using B_s^0 Decays to Determine the CP Angles αand γ
C. S. Kim, D. London, T. Yoshikawa
Dighe, Gronau and Rosner have shown that, by assuming SU(3) flavor symmetry and first-order SU(3) breaking, it is possible to extract the CP angles αand γfrom measurements of the d…
B->Xq l+ l- (q=d,s) and Determination of |Vtd/Vts|
C. S. Kim, T. Morozumi, A. I. Sanda
We propose a new method to extract |Vtd/Vts| from the ratio of the decay distributions dR/ds = dB(B->Xdl+l-)/ds/dB(B->Xsl+l-)/ds. This ratio depends only on the KM ratio |Vtd/Vts|…
Flavor democracy and quark mass matrices
C. S. Kim, G. Cvetic
Based on experimental mass hierarchy, a set of flavor-democratic (FD) quark mass matrices at low energies is discussed. The model predicts CP violation parameters $J_{CP}=(0.3 \pm…
One-loop renormalization group equations of the general framework with two Higgs doublets
G. Cvetic, C. S. Kim, S. S. Hwang
We derive one-loop renormalization group equations (RGE's) for Yukawa coupling parameters of quarks and for the vacuum expectation values of the Higgs doublets in a general framewo…
High Energy FCNC search through Colliders
Seong-Youl Choi, C. S. Kim, Youngjoon Kwon +1
We study the potential impacts of a new type of particle collider -- an collider -- on the search for new physics beyond the Standard Model. As our first attempt for exploring…
Determination of Vtd/Vts within the Standard Model
C. S. Kim, T. Morozumi, A. I. Sanda
We propose a new method to extract the value of |Vtd/Vts| from the ratio of the decay distributions dBr/ds[B->Xd l^+ l^-}] and dBr/ds[B Xs l^+ l^-].
T-odd Gluon-Top-Quark Effective Couplings at the CERN Large Hadron Collider
S. Y. Choi, C. S. Kim, Jake Lee
The T-odd top-quark chromoelectric dipole moment (tCEDM) is probed through top-quark-pair production via gluon fusion at the CERN Large Hadron Collider (LHC) by considering the pos…
Motion of b-quark inside B meson: the Parton Model vs. the ACCMM Model
C. S. Kim, Y. G. Kim, K. Y. Lee
We study the distribution function of the b-quark for inclusive semileptonic B decays in the framework of the parton model. We compare the functional behavior of the fragmentation…
New Precision Electroweak Tests in Supergravity Models
Gye T. Park, Kang Young Lee
We update the analysis of the precision electroweak tests in terms of 4 epsilon parameters, , to obtain more accurate experimental values of them by taking into accoun…
Multiquark states and QCD sum rules
Seungho Choe
There have been arguments about hadronic molecules, which are weakly-bound states of two or more hadrons. We investigate the possibility of some candidates (f0 (980), a0 (980), f0…
CP Violation in the Top-Quark Pair Production at a Next Linear Collider
M. S. Baek, S. Y. Choi, C. S. Kim
We provide a detailed, model-independent, study for CP violation effects due to the T-odd top-quark electric dipole moment (EDM) and weak dipole moment (WDM) in the top-quark pair…
Higgs Boson Mass Bounds in the Standard and Minimal Supersymmetric Standard Model with Four Generations
Sin Kyu Kang, Gye T. Park
We study the question of distinguishability of the Higgs sector between the standard model with four generations(SM4) and the minimal supersymmetric standard model with four genera…
Measuring of in the forthcoming decade
C. S. Kim
I first introduce the importance of measuring V_ub precisely. Then, from a theoretician's point of view, I review (a) past history, (b) present trials, and (c) possible future alte…
Is CDF large anomaly from virtual SUSY threshold effects?
C. S. Kim
Talk is given at the YITP International Workshop -- `Recent Developments in QCD and Hadron Physics'. Recent CDF data of the inclusive jet cross section shows anomalous deviation ar…