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 2001 · hep-phShow all

21 papers · 2 filters

hep-ph2001★ 10 cited

CP violating transverse lepton polarizaion in $B \to D^{(*)} ℓ ν ˉ$ including tensor interactions

Jong-Phil Lee

We give a model-independent analysis of CP violating lepton polarization in the exclusive semileptonic B decay of $B \to D^{(*)} ℓ ν ˉ$ including dimension six four-fermion tenso…

hep-ph2001★ 1 cited

The Width Difference of $B_{d}$ Mesons

Amol Dighe, Tobias Hurth, Choong Sun Kim +1

We estimate $\dg/Γ_d$, including $1/ m_{b}$ contributions and part of the next-to-leading order QCD corrections. We find that adding the latter corrections decreases the value of $\dg…

hep-ph2001★ 12 cited

Longitudinal polarization asymmetry of leptons in the pure leptonic B decays

L. T. Handoko, C. S. Kim, T. Yoshikawa

Longitudinal lepton polarization asymmetry in B_q -> l l (q = d, s$ and l = e, mu, tau) decays is investigated. The analysis is done in a general manner by using the effective oper…

hep-ph2001★ 4 cited

BRST symmetries in SU(3) linear sigma model

Soon-Tae Hong, Su Houng Lee

We study the BRST symmetries in the SU(3) linear sigma model which is constructed through introduction of a novel matrix for the Goldstone boson fields satisfying geometrical const…

hep-ph2001★ 12 cited

Couplings between pion and charmed mesons

Hungchong Kim, Su Houng Lee

We compute the couplings $D D^{*} π$ , $D_{1} D^{*} π$ , $D^{*} D^{*} π$ , $D_{1} D_{1} π$ using QCD sum rules. These couplings are important inputs in the meson exchange model calculations used to estimate…

hep-ph2001★ 51 cited

Quarkonium-hadron interactions in QCD

Yongseok Oh, Sungsik Kim, Su Houng Lee

The leading order non-relativistic QCD result for the quarkonium-hadron interaction cross section is derived by using the QCD factorization formula combined with the Bethe-Salpeter…

hep-ph2001

Non-factorizable effects on $\Bbar^0\to D^{(*)0}π^0$

Jong-Phil Lee

Non-factorizable effects on the color-suppressed $B \to D^{(*)} π$ decay modes are analyzed. Recent observations of $\Bbar^0\to D^{(*)0}π^0$ by Belle and CLEO strongly suggest that t…

hep-ph2001★ 60 cited

Measurement of the Lifetime Difference of $B_{d}$ Mesons: Possible and Worthwhile?

A. S. Dighe, T. Hurth, C. S. Kim +1

We estimate the decay width difference $Δ G amm a_{d} / Γ_{d}$ in the $B_{d}$ system including $1/ m_{b}$ contributions and next-to-leading order QCD corrections, and find it to be around 0.3%…

hep-ph2001★ 17 cited

Hadronic B Decays to Charmless VT Final States

C. S. Kim, B. H. Lim, Sechul Oh

Charmless hadronic decays of B mesons to a vector meson (V) and a tensor meson (T) are analyzed in the frameworks of both flavor SU(3) symmetry and generalized factorization. We al…

hep-ph2001★ 6 cited

Test of Factorization Hypothesis from Exclusive Non-leptonic B decays

C. S. Kim, Y. Kwon, Jake Lee +1

We investigate the possibility of testing factorization hypothesis in non-leptonic exclusive decays of B-meson. In particular, we considered the non factorizable \bar{B^0} -> D^{(*…

hep-ph2001★ 10 cited

Study of Semileptonic Decays $B^{\pm} \to η^{(')} l ν$

C. S. Kim, Ya-Dong Yang

We study semileptonic decays $B^{\pm} \to η^{(')} l ν$ , which are suggested to be used to extract the hadronic form factors of $B$ meson decays to $η (η^{'})$ and the angle…

hep-ph2001★ 11 cited

In-medium pion weak decay constants

Hungchong Kim

In nuclear matter, the pion weak decay constant is separated into the two components $f_{t}, f_{s}$ corresponding to the time and space components of the axial-vector current. Using QC…

hep-ph2001

Difficulties in Obtaining Weak Phases from $b \to d$ Penguin Decays

Alakabha Datta, C. S. Kim, David London

We re-examine a recent proposal for obtaining βusing the measurements of the b -> d penguin decays B_d(t) -> K^0 \kbar and B_s(t) -> ϕK_S, along with a theoretical assumption. We s…

hep-ph2001★ 4 cited

QCD sum rules for the pseudoscalar decay constants - To constrain the strange quark mass

Hungchong Kim

We study the higher order corrections of quark masses to the Gell-Mann $-$ Oakes $-$ Renner (GOR) relation by constructing QCD sum rules exclusively for pseudoscalar mesons from the ax…

hep-ph2001★ 1 cited

Measuring sin 2βin Bs(t) -> phi K_s

Alakabha Datta, C. S. Kim, David London

We show that, unlike other pure b -> d penguin processes, the decay Bs(t) -> phi K_s is dominated by a single amplitude, that of the internal t-quark. The contributions of the u- a…

hep-ph2001

Determination of the CP Phase $γ$ with Possibility of New Physics

C. S. Kim, Sechul Oh

We propose a new method to extract the CP violating weak phase $γ$ in the CKM paradigm of the Standard Model, using $B^{-} \to D^{0} π^{-} \to f π^{-}$ and $B^{-} \to D ˉ^{0} π^{-} \to f π^{-}$ …

hep-ph2001★ 36 cited

Muon Anomalous Magnetic Moment (g-2)_mu and the Randall-Sundrum Model

C. S. Kim, J. D. Kim, Jeonghyeon Song

We study the effects of the Kaluza-Klein gravitons in the Randall-Sundrum model on the recent BNL measurements of the muon (g-2) deviation from the standard model prediction. By ex…

hep-ph2001★ 11 cited

Possible Supersymmetric Effects on Angular Distributions in $B \to K^{*} (\to K π) ℓ^{+} ℓ^{-}$ Decays

C. S. Kim, Yeong Gyun Kim, Cai-Dian Lu

We investigate the angular distributions of the rare B decay, $B \to K^{*} (\to K π) ℓ^{+} ℓ^{-}$ , in general supersymmetric extensions of the standard model. We consider the new p…

hep-ph2001★ 15 cited

Present and Future CP Measurements

Tobias Hurth, Choong Sun Kim, Claire Shepherd-Themistocleous +16

We review theoretical and experimental results on CP violation summarizing the discussions in the working group on CP violation at the UK phenomenology workshop 2000 in Durham.

hep-ph2001

New Physics Working Group Summary of LCWS2000 at FNAL

C. S. Kim

Here I summarize P5-WG (New/Alternative Physics Working Group) of LCWS2000@FNAL, held on Oct 24-28, 2000. There were 13 talks altogether, 7 talks on collider signals from new parti…

hep-ph2001★ 20 cited

Charmless Hadronic Decays of B Mesons to a Pseudoscalar and a Tensor Meson

C. S. Kim, B. H. Lim, Sechul Oh

We study two-body charmless hadronic decays of $B$ mesons to a pseudoscalar meson ( $P$ ) and a tensor meson ( $T$ ) in the frameworks of both flavor SU(3) symmetry and generalized fac…

CP violating transverse lepton polarizaion in B→D(∗)ℓνˉ including tensor interactions

The Width Difference of Bd​ Mesons

Longitudinal polarization asymmetry of leptons in the pure leptonic B decays

BRST symmetries in SU(3) linear sigma model

Couplings between pion and charmed mesons

Quarkonium-hadron interactions in QCD

Non-factorizable effects on $\Bbar^0\to D^{(*)0}π^0$

Measurement of the Lifetime Difference of Bd​ Mesons: Possible and Worthwhile?

Hadronic B Decays to Charmless VT Final States

Test of Factorization Hypothesis from Exclusive Non-leptonic B decays

Study of Semileptonic Decays B±→η(′)lν

In-medium pion weak decay constants

Difficulties in Obtaining Weak Phases from b→d Penguin Decays

QCD sum rules for the pseudoscalar decay constants - To constrain the strange quark mass

Measuring sin 2βin Bs(t) -> phi K_s

Determination of the CP Phase γ with Possibility of New Physics

Muon Anomalous Magnetic Moment (g-2)_mu and the Randall-Sundrum Model

Possible Supersymmetric Effects on Angular Distributions in B→K∗(→Kπ)ℓ+ℓ− Decays

Present and Future CP Measurements

New Physics Working Group Summary of LCWS2000 at FNAL

Charmless Hadronic Decays of B Mesons to a Pseudoscalar and a Tensor Meson

CP violating transverse lepton polarizaion in $B \to D^{(*)} ℓ ν ˉ$ including tensor interactions

The Width Difference of $B_{d}$ Mesons

Measurement of the Lifetime Difference of $B_{d}$ Mesons: Possible and Worthwhile?

Study of Semileptonic Decays $B^{\pm} \to η^{(')} l ν$

Difficulties in Obtaining Weak Phases from $b \to d$ Penguin Decays

Determination of the CP Phase $γ$ with Possibility of New Physics

Possible Supersymmetric Effects on Angular Distributions in $B \to K^{*} (\to K π) ℓ^{+} ℓ^{-}$ Decays