Yonsei University

output

19932026

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 2007 · hep-phShow all

22 papers · 2 filters

hep-ph2007★ 16 cited

Study of the exclusive $b \to u ℓ^{-} ν ˉ_{ℓ}$ decays in the MSSM with and without R-parity violation

C. S. Kim, Ru-Min Wang

We study the exclusive $b \to u ℓ^{-} ν ˉ_{ℓ} (ℓ = τ, μ, e)$ decays in the MSSM with and without R-parity violation. From the experimental measurements of branching ratios $\m…

hep-ph2007★ 6 cited

Custodial bulk Randall-Sundrum model and B->K* l+ l'-

Sanghyeon Chang, C. S. Kim, Jeonghyeon Song

The custodial Randall-Sundrum model based on SU(2)_L X SU(2)_R X U(1)_(B-L) generates new flavor-changing-neutral-current (FCNC) phenomena at tree level, mediated by Kaluza-Klein n…

hep-ph2007★ 3 cited

Leptogenesis in a seesaw model with Fritzsch type lepton mass matrices

Y. H. Ahn, Sin Kyu Kang, C. S. Kim +1

We investigate how the baryon asymmetry of our universe via leptogenesis can be achieved within the framework of the seesaw model with Fritzsch type lepton mass matrices proposed b…

hep-ph2007★ 318 cited

Heavy Ion Collisions at the LHC - Last Call for Predictions

S. Abreu, S. V. Akkelin, J. Alam +164

This writeup is a compilation of the predictions for the forthcoming Heavy Ion Program at the Large Hadron Collider, as presented at the CERN Theory Institute 'Heavy Ion Collisions…

hep-ph2007★ 32 cited

The rare decays $B_{u}^{+} \to π^{+} ℓ^{+} ℓ^{-}$ , $ρ^{+} ℓ^{+} ℓ^{-}$ and $B_{d}^{0} \to ℓ^{+} ℓ^{-}$ in the R-parity violating supersymmetry

Jian-Jun Wang, Ru-Min Wang, Yuan-Guo Xu +1

We study the rare decays $B_{u}^{+} \to π^{+} ℓ^{+} ℓ^{-}$ , $ρ^{+} ℓ^{+} ℓ^{-}$ and $B_{d}^{0} \to ℓ^{+} ℓ^{-} (ℓ = e, μ)$ in the R-parity violating supersymmetric standard…

hep-ph2007★ 73 cited

Critical behavior of charmonia across the phase transition: A QCD sum rule approach

Kenji Morita, Su Houng Lee

We investigate medium-induced change of mass and width of J/psi and eta_c across the phase transition in hot gluonic matter using QCD sum rules. In the QCD sum rule approach, the m…

hep-ph2007★ 27 cited

Low Scale Leptogenesis and Dark Matter Candidates in an Extended Seesaw Model

H. Sung Cheon, Sin Kyu Kang, C. S. Kim

We consider a variant of seesaw mechanism by introducing extra singlet neutrinos and singlet scalar boson, and show how low scale leptogenesis is successfully realized in this scen…

hep-ph2007★ 7 cited

Tree FCNC and non-unitarity of CKM matrix

C. S. Kim, Amol Dighe

We discuss possible signatures of the tree level FCNC, which results from the non-unitarity of CKM matrix. We first define the unitaity step-by-step, and possible test of the non-u…

hep-ph2007

Extracting the CKM phase angle γ(\equiv ϕ_3) from isospin analysis in B\to K πdecays

C. S. Kim, Sechul Oh, Yeo Woong Yoon

We propose a new method to extract the CKM phase angle γ(\equiv ϕ_3) from the isospin analysis in B \to K πdecays. Unlike previously proposed methods, we do not employ flavor SU(3)…

hep-ph2007★ 75 cited

QCD sum rules study of the meson Z^+(4430)

Su Houng Lee, Antonio Mihara, Fernando S. Navarra +1

We use QCD sum rules to study the recently observed meson $Z^{+} (4430)$ , considered as a $D^{*} D_{1}$ molecule with $J^{P} = 0^{-}$ . We consider the contributions of condensates up to dime…

hep-ph2007★ 33 cited

The thermal width of heavy quarkonia moving in quark gluon plasma

Taesoo Song, Yongjae Park, Su Houng Lee +1

The velocity dependence of the thermal width of heavy quarkonia traveling with respect to the quark gluon plasma is calculated up to the NLO in perturbative QCD. At the LO, the wid…

hep-ph2007★ 22 cited

Analytic Resolution of Puzzle in $B \to K π$ decays

C. S. Kim, Sechul Oh, Yeo Woong Yoon

We present a systematic method to extract each standard model (SM)-{\it like} hadronic parameter as well as new physics parameters in analytic way for $B \to K π$ decays. Using the a…

hep-ph2007★ 59 cited

Charmed Exotics in Heavy Ion Collisions

Su Houng Lee, Shigehiro Yasui, Wei Liu +1

Based on the color-spin interaction in diquarks, we argue that charmed multiquark hadrons are likely to exist. Because of the appreciable number of charm quarks produced in central…

hep-ph2007

BFKL equation at finite temperature

Kazuaki Ohnishi, Su Houng Lee

We consider the Color Glass Condensate (CGC) at finite temperature, which would be relevant to the initial condition of relativistic heavy ion collisions and the energy loss of ene…

hep-ph2007★ 321 cited

Heavy-Quark Kinetics in the QGP at LHC

H. van Hees, V. Greco, R. Rapp

We present predictions for the nuclear modification factor and elliptic flow of D and B mesons, as well as of their decay electrons, in semicentral Pb-Pb collisions at the LHC. Hea…

hep-ph2007★ 321 cited

Thermal Dileptons at LHC

H. van Hees, R. Rapp

We predict dilepton invariant-mass spectra for central 5.5 ATeV Pb-Pb collisions at LHC. Hadronic emission in the low-mass region is calculated using in-medium spectral functions o…

hep-ph2007★ 9 cited

Generalized analysis on $B \to K^{*} ρ$ within and beyond the Standard Model $-$ Can it help understand the $B \to K π$ puzzle?

C. S. Kim, Sechul Oh, Chandradew Sharma +2

We study $B \to K^{*} ρ$ modes that are analogues of the much studied $B \to K π$ modes with B decaying to two vector mesons instead of pseudoscalar mesons, using topological amplitud…

hep-ph2007★ 175 cited

QCD sum rules study of $QQ - u ˉ d ˉ$ mesons

Fernando S. Navarra, Marina Nielsen, Su Houng Lee

We use QCD sum rules to study the possible existence of $QQ - u ˉ d ˉ$ mesons, assumed to be a state with $J^{P} = 1^{+}$ . For definiteness, we work with a current with an axial…

hep-ph2007★ 52 cited

The widths of quarkonia in quark gluon plasma

Yongjae Park, Kyung-Il Kim, Taesoo Song +2

Recent lattice calculations showed that the quarkonia will survive beyond the phase transition temperature, and will dissolve at different temperatures depending on the type of the…

hep-ph2007★ 51 cited

Heavy quarkonium in a holographic QCD model

Youngman Kim, Jong-Phil Lee, Su Houng Lee

Encouraged by recent developments in AdS/QCD models for light quark system, we study heavy quarkonium in the framework of the AdS/QCD models. We calculate the masses of $c c ˉ$ v…

hep-ph2007★ 12 cited

Correlation between lepton flavor violation and B_{(d,s)} - \bar{B}_{(d,s)} mixing in SUSY GUT

Kingman Cheung, Sin Kyu Kang, C. S. Kim +1

Motivated by the recent measurements of the B_s-\bar{B}_s mass difference from the D0 and CDF collaborations, we probe new physics effects in the B_q-\bar{B}_q mixing within the co…

hep-ph2007★ 46 cited

Is There Still a B -> pi K Puzzle?

Seungwon Baek, David London

We perform a fit to the 2006 B -> pi K data and show that there is a disagreement with the standard model. That is, the B -> pi K puzzle is still present. In fact, it has gotten wo…

Study of the exclusive b→uℓ−νˉℓ​ decays in the MSSM with and without R-parity violation