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Prof. Chaehyun Yu (KIAS)20/02/2012, 09:00
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Prof. M. Tanimoto (Niigata U.)20/02/2012, 09:40The non-zero and sizable value of $U_{e3}$ puts pressure on flavor symmetry models which predict an initially vanishing value. Hence, the tradition of relating fermion mixing matrix elements with fermion mass ratios might need to be resurrected. The recently observed non-vanishing value of $U_{e3}$ can be related numerically to the ratio of solar and atmospheric mass-squared differences. We...Go to contribution page
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Prof. Kingman Cheung (National Taiwan U.)20/02/2012, 10:40
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Prof. Cai-Dian Lu (IHEP)20/02/2012, 11:20
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Prof. Jiunn-Wei Chen (National Taiwan U.)20/02/2012, 12:00We calculate the leading order bulk viscosity \zeta of a gluon plasma in perturbative QCD with the finite angle non-collinear inelastic scatterings neglected by the previous calculation of Arnold, Dogan and Moore (ADM) included. We agree with the ADM's leading order result within errors. In contrast, our previous result on shear viscosity \eta is smaller than that of Arnold, Moore and...Go to contribution page
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Dr Masaya Iwabuchi (Yonsei U.)20/02/2012, 19:00Dalitz plot analysis of B->DK, D->Ksh+h- (h= K or pi) is one of the promissing methods for the precise measurement of CKM angle phi3. We report a study of Dalitz plot analysis of the neutral D meson decay to KsK+K- final state. This study is based on a large data sample accumulated with the Belle detector at the KEKB e+e- collider.Go to contribution page
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Prof. Hyun Seok Yang (CQUeST, Sogang Univ.)20/02/2012, 19:00We will show how cosmic inflation can be generated by conformal Hamiltonian system in emergent gravity. We will also discuss a background independent completion of the spacetime generation through the cosmic inflation.Go to contribution page
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Prof. Jianxiong Wang (IHEP)20/02/2012, 19:00
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Ms Youngsoo Sohn (Yonsei U.)20/02/2012, 19:20Lepton-Flavor-Violating B decays B --> l+ tau- (l = e, mu) are forbidden in the Standard Model(SM), but they are predicted to occur in many theories beyond SM. Observation of these decays would be clear evidence of physics beyond SM. We present a study of signal and background suppression using Neural Network method and expected upper limit in ...Go to contribution page
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Dr Li Run-Hui (Yonsei Univ.)20/02/2012, 19:20We analyze the $B\to K_2^*(\to K\pi)l^+l^-$ (with $l=e,\mu,\tau$) decay in the standard model and two new physics scenarios: vector-like quark model and family non-universal $Z'$ model. We derive its differential angular distributions, using the recently calculated form factors in the perturbative QCD approach. Branching ratios, polarizations, forward-backward asymmetries and transversity...Go to contribution page
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Dr Arman Shafieloo (IEU, Ewha W. Univ.)20/02/2012, 19:30Nature of dark energy is one of the biggest unknowns of the modern cosmology. I will summarizes general attempts to reconstruct the expansion history of the universe and to probe the nature of dark energy. Reconstruction methods can be broadly classified into parametric and non-parametric approaches. Presenting the analysis of the most recent cosmological data, some pitfalls of each approach...Go to contribution page
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Prof. Kihyeon Cho (KISTI)20/02/2012, 19:40Geant4 is a toolkit for the simulation of the passage of particles through matter. Its areas of application include high energy, nuclear and accelerator physics, as well as studies in medical and space science. We introduce the project on Geant4 R&D for High Energy Physics and Medical Physics since a few accelerators are supposed to build for high energy physics and medical physics near future...Go to contribution page
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Dr Fanrong Xu (National Taiwan U.)20/02/2012, 19:40We show that simultaneout precision measurements of the CP-violating phase in time-dependent B_{s} --> J/ψφ study and the B_{s} --> μ+μ- rate, together with measuring m_{t`} by direct search at the LHC, would determine V_{t`b}V*_{t`s} and therefore the quadrangle in the four-generation standard model. The forward-backward asymmetry in B --> K*μ+μ- provides further discrimination.Go to contribution page
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Dr Jae-hyeon Park (IKTP, TU Dresden)20/02/2012, 20:00Due to the smallness of the lepton Yukawa couplings, higher-dimensional operators can give a significant contribution to the lepton masses. In this case, the lepton mass matrix and the matrix of lepton-Higgs couplings are misaligned leading to lepton flavor violation (LFV) mediated by the Standard Model Higgs boson. We derive model-independent bounds on the Higgs flavor violating couplings...Go to contribution page
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Dr Junghyun Kim (KISTI)20/02/2012, 20:00We use a metadata service at the Belle experiment which provides a mechanism to locate files using descriptive information. However, at the Belle II experiment, we will have 50 _ 60 times more data than that of the Belle experiment. Therefore, it is expected that the existing metadata service has problems with performance, scalability, and durability, in particular, if it is extended to an...Go to contribution page
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Dr Kanghoon Lee (CQUeST)20/02/2012, 20:20This talk aims to illustrate our recent supersymmetric extension of double field theory and its connection to supergravity. In terms of novel stringy differential geometry we propose, our action consists of five simple terms - two bosonic plus three fermionic - and manifests not only diffeomorphism and one-form gauge symmetry of B-field, but also O(10,10) T-duality as well as a direct product...Go to contribution page
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Geunchul Park (KISTI)20/02/2012, 20:40Huge amounts of data are produced in high-energy physics experiments. We need to use a metadata catalogue service to manage these data and files effectively. AMGA is a gLite-metadata catalogue service designed to offer efficient use to metadata for files stored on the Grid. AMGA supports the various databases(Oracle, PostgreSQL, MySQL, SQLite) connection and APIs of the various...Go to contribution page
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Kei Yamamoto (Niigata Univ.)20/02/2012, 20:40The like-sign dimuon charge asymmetry observed by the D$\O$ Collaboration indicates the CP violating contribution from new physics in the $B_s$ meson mixing. Recently, the LHCb reported the observed CP-violating asymmetry in $B_s^0\to J/\psi \phi$ and $B_s^0\to J/\psi f_0(980) $, which is consistent with the SM prediction. However, there is still possible contribution on the CP violating new...Go to contribution page
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Dr Jaehoon Jeong (Yonsei Univ.)20/02/2012, 20:50We construct the gravity background which describes the dual field theory with aging invariance. We choose the decay modes of the bulk scalar field in the internal spectator direction to obtain the dissipative behavior of the boundary correlation functions of the dual scalar fields. In particular, the two-time correlation function at zero temperature has the characteristic features of the...Go to contribution page
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Taesang Huh (KISTI)20/02/2012, 21:00AMGA is an official EMI metadata catalogue service developed to offer access to metadata for files stored on the Grid and to ensure high scalability to metadata systems due to both data replication/federation in a distributed environment and compatibility with EMI other components. That's why the Belle II Data Handling system used AMGA metadata catalog as main technology for the management of...Go to contribution page
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Dr Yeo Woong Yoon (KIAS)20/02/2012, 21:00We compute the pole mass of the gluino in the minimal gauge mediation to two-loop order. The pole mass of the gluino begins to arise at one-loop order and the two-loop order correction shifts the leading order pole mass by 20% or even more. This shift is much larger than the expected accuracy of the mass determination at the LHC, and should be reckoned with for precision studies on the SUSY...Go to contribution page
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Dr Hongbin Kim (Yonsei Univ.)20/02/2012, 21:10
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Sunghyon Kyeong (NIMS)20/02/2012, 21:20
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Dr Gaber Faisel (National Central U.)20/02/2012, 21:20We discuss the dynamical mass generation resulting from supersymmetric extensions of the classical Nambu-Jona-Lasinio model namely from interaction terms with four chiral superfields. The kind of interactions maybe considered a supersymmetric generalization of the four-fermion interactions of the classic Nambu-Jona-Lasinio model. We illustrate the dynamical generation of superfield...Go to contribution page
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Dr Jae Ho Heo (Yonsei Univ.)20/02/2012, 21:40
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Prof. Kyung Kwang Joo (Chonnam National U.)21/02/2012, 09:00
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Prof. Eunil Won (Korea Univ.)21/02/2012, 09:45Belle-II experiment is a future planned experiment for a super B-meson factory collider to be built in KEK, Japan. I review present status and prospect of the Belle-II experiment.Go to contribution page
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Eunil Won (Korea University)21/02/2012, 10:10Ever since the discovery of cosmic microwave background (CMB), the field of experimental cosmology is probing the earliest period of the universe. I discuss briefly importance of the polarization of CMB and discuss recent R&D for the measurement of B-mode CMB polarization.Go to contribution page
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Prof. Intae Yu (Sungkyunkwan U.)21/02/2012, 10:50The CDF and D0 experiments finished their 10-year Run 2 operation successfully on Sep. 30, 2011. The Tevatron delivered about 12 fb-1 of collision data to each experiment during Run 2 and many important measurements and discoveries had been made by analyzing the data. In this talk, some of latest physics results from the Tevatron experiments will be reviewed and discussed.Go to contribution page
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Prof. Donghee Kim (Kyungpook National U.)21/02/2012, 11:35The LHC delivered more than 5 /fb data and the CMS collected the data about 5.2 /fb with near 90% efficiency. The most of major physics channels has been already finished resulting in submission of papers. We show the recent results on new particle searches at CMS based on 2011 data. These include Higgs, heavy gauge boson, ED as well as SUSY particles. FInally the prospect of 2012 will be discussed.Go to contribution page
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Prof. Hsiang-nan Li (Academia Sinica)21/02/2012, 19:00We include the $\eta_c$ meson into the $\eta$-$\eta'$-$G$ mixing formalism constructed in our previous work, where $G$ represents the pseudoscalar gluball. The mixing angles in this tetramixing matrix are constrained by theoretical and experimental implications from relevant hadronic processes. Especially, the angle between $\eta_c$ and $G$ is found to be about $15^\circ$ from the...Go to contribution page
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Prof. Youngjoon Kwon (Yonsei Univ.)21/02/2012, 19:00B meson decays to invisible final states. e.g. B → νν are very highly suppressed in the Standard Model (SM). Similarly, B decay to semi-invisible final states such as B → K*νν are highly suppressed. As a result, these decays can provide a good probe to search for new physics beyond the SM. Experimently, it is very difficult to search for these decays due to invisibility of the final state...Go to contribution page
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Prof. Jinho Cho (Hanyang Univ.)21/02/2012, 19:00
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Mr Youngmin Yook (Yonsei Univ.)21/02/2012, 19:20The branchig fraction of the rare B meson decay B->lnu are expected to be very small due to helicity suppression in the Standard Model. With the contributions from the new physics beyond the Standard Model, this may be avoided and the evidences of the process may be observed. With hadronic tagging method for a very clean experimental signature, this study is based on a set of data sample of...Go to contribution page
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Lu-Hsing Tsai (National Taiwan U.)21/02/2012, 19:25A model relating radiative seesaw and minimal dark matter mass scales without beyond the standard model (SM) gauge symmetry (RνMDM) is constructed. In addition to the SM particles, the RνMDM contains, a Majorana fermion multiplet NR and scalar multiplet χ that transform respectively as (1, 5, 0) and (1, 6,−1/2) under the SM gauge group SU(3)C ×SU(2)L ×U(1)Y .This choice for representation of...Go to contribution page
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Dr Jong-Wan Lee (KEK)21/02/2012, 19:30Using the Eguchi-Kawai volume reduction, we study the large N limit of four dimensional Yang-Mills theory with two heavy adjoint fermions on a 2^4 lattice. For this numerical studies, we use overlap fermions for a number of colors up to N=16. We first confirm that the Z_N^4 center symmetry of the reduced model is unbroken even at weak coupling regime. Then, in the chiral limit, m_q=0, we...Go to contribution page
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Mr Dooyong Jung (Yonsei U.)21/02/2012, 19:45We present the study of the leptonic B-meson decay, B → lτ from Belle experiment. This study is done by using MC sample which corresponds to an integrated luminosity of 711fb−1 , from which contains approximately 771 × 106 BB pair events. They are tagged by hadronic tagging method. We optimized all event variables cuts to obtain best result. We can get the result of Expected Branching Fraction...Go to contribution page
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Dr Yu Seon Jeong (Yonsei Univ.)21/02/2012, 19:50We evaluate the ultra high energy neutrino event rate from the lunar observation using the analytic expression of the effective aperture by Gayley et al.. We modify this formalism for strong attenuation and evaluate the background from cosmic ray interaction in the lunar regolith. We also make modifications to the effective aperture for the non-standard model neutrino interaction and calculate...Go to contribution page
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Dr O-Kab Kwon (Sungkyunkwan U.)21/02/2012, 20:20We obtain a new-type of ${\cal N}=3$ Yang-Mills Chern-Simons theory from the Mukhi-Papageorgakis Higgsing of the ${\cal N}=3$ Gaiotto-Tomasiello theory. This theory has ${\cal N}=1$ BPS fuzzy funnel solution which is expressed in terms of the seven generators of SU(3), excluding $T_8$. We propose that this is an effective theory of multiple D2-branes with D6- and D8-branes in the presence of...Go to contribution page
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Dr Woojin Seok (KISTI)21/02/2012, 20:30It, the collider of the high energy physics area, produces the huge amount of data. The data then should be dispersed over the world in high speed and in high capacity, for the purpose of analyzing the data by the scientists in the world. So they built and organized Tier system, a global scale infrastructure for transferring the data in hierarchical manners over the world. The scientists have...Go to contribution page
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Prof. Takuya Morozumi (Hiroshima Univ.)21/02/2012, 20:35We study the variation of particle number in non-equilibirum enviroment. Using the scalar model with the particle number violating interactions, we study the time development of the particle number using the Closed Path Time (CPT) formalism. Two types of the particle number interactions are considered. One is the particle number violationg mass term and the other drives particle number...Go to contribution page
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Dr Youngjin Kim (KISTI)21/02/2012, 20:50I will show that Preliminary Results of Analysis of the CP violation in the Bs → J/ψ (μ+μ−) φ (K+K−) decay using TTT data set and combined DIM and TTT datasets. This is one of the powerful channel for the study of CP violation at hadron colliders is the process Bs → J/ψ (μ+μ−) φ (K+K−) with a clear kinematics and experimental signature. The CDF experiment has built the Hadronic Two Track (TTT)...Go to contribution page
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Mr Wooje Jang (Yonsei U.)21/02/2012, 20:50We explore four-dimensional Einstein-Weyl gravity and supergravity on anti-de Sitter spacetime. For a specific range of the coupling with appropriate boundary conditions, we show the effective equivalence of the theory with Einstein gravity and AdS supergravity at the quadratic Lagrangian level. Furthermore we show that these equivalences can be promoted to the full nonlinear level. We also...Go to contribution page
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Prof. Kang Young Lee (Konkuk Univ.)21/02/2012, 21:00
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Mr Wooram Cho (Yonsei U.)21/02/2012, 21:10At present, we don’t understand what can generate ultra high energy cosmic rays(UHECRs) exactly. Active galactic nuclei(AGN) can be regarded as one of the source of UHECRs. In this presentation, we use bayesian approach to detemine the fraction of UHECRs coming from AGNs. And 27 highest energy-events detected by Pierre Auger Observatory(PAO) with Veron Cetty Veron(VCV) catalogue are analysed.Go to contribution page
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Hsiu-Hsien Lin (National Taiwan U.)21/02/2012, 21:25We study the complementarity between quark and lepton mixing angles (QLC), the sum of an angle in quark mixing and the corresponding angle in lepton mixing is π/4. Experimentally in the standard PDG parametrization, two such relations exist approximately. These QLC relations are accidental which only manifest themselves in the PDG parametrization. We propose reparametrization invariant...Go to contribution page
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Mr Hongki Kim (Yonsei U.)21/02/2012, 21:30The COREA(COsmic ray Reaserch and Education Array) collaboration has installed a prototype array of plastic scintillation systems at Kyeonggibuk Science High School and Hansung Science High School to study cosmic ray events. In each site, three detector stations are installed, where each station cosists of four scintillation detectors. We report the progress of simulation study of plastic...Go to contribution page
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Dr Jubin Park (National Tsing Hua U.)21/02/2012, 21:50
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Prof. Piljin Yi (KIAS)22/02/2012, 09:00
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Prof. Kimyeong Lee (KIAS)22/02/2012, 09:40
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Prof. Soonkeon Nam (Kyunghee U.)22/02/2012, 10:40Recent development in 4 Dimensional Quantum Field Theories have revealed that some of 2 Dimensional CFT techniques which have been developed last 20 some years are relevant, especially through the works of AGT. Instanton sector calculation (very difficult) can easily be done by 2D Conformal FIeld theory calculations. I wil review this connection and introduce some of my earlier works (more...Go to contribution page
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Prof. Yunbai Kim (Sungkyunkwan U.)22/02/2012, 11:20We construct the gauge invariant interaction terms between the world-volume fields of multiple M2-branes and the 3- and 6-form fields in the context of ABJM theory. with U(N)×U(N) gauge and show that the obtained dimensionally reduced couplings coincide with the effective action of D2-branes coupled to R-R 3- and 5-form fields in type IIA string theory. As an application of our formulation, we...Go to contribution page
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Dr Gungwon Kang (KISTI)22/02/2012, 12:00Most hypercylindrical black string/brane spacetime backgrounds are unstable under small long wavelength perturbations along the string/brane directions. This is the so-called Gregory-Laflamme instability. After giving a brief review on the recent developments on this issue, I motivate why a wider class of hypercylindrical spacetime solutions is needed to be studied more. Such solutions in...Go to contribution page
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Ardy Mustofa (Yonsei Univ.)22/02/2012, 17:00We investigate the vector-like fourth generation coming from Split-UED to the contribution of the Higgs physics. We calculate the cross section from one-loop induced $gg->H$ process, and the branching ratio from $H->gg$ and $H->\gamma \gamma$ processes. The work now is still in progress.Go to contribution page
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Dr Sangsu Ryu (KISTI), Dr Soonwook Hwang (KISTI)22/02/2012, 17:00The ALICE experiment, one of the four LHC experiments at CERN, is about studying the physics of strongly interacting matter at extreme energy densities, where the formation of a new phase of matter, the quark-gluon plasma, is expected. Several petabytes of data are expected to be produced from the ALICE detector annually. There are more than 1000 ALICE scientists around the world who want to...Go to contribution page
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Freddy Simanjuntak (Yonsei University)22/02/2012, 17:00The B --> V T (V and T denote vector and tensor mesons respectively) decays, whose final-state particles can have transverse or longitudinal polarization, are investigated in perturbative QCD (pQCD) approach. Measurements have been made of B --> phi K_2^*, and it is found that f_T / f_L is small, whereas f_T / f_L ~ 1 for B --> omega K_2^* where f_T(f_L) is the fraction of transverse...Go to contribution page
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Thi Thuy Nguyen (Yonsei Univ.)22/02/2012, 17:00In the 3-3-1 model with right-handed neutrinos, small neutrino masses can be obtained by introducing a Higgs sextet. The neutrino mass is the result of a type II seesaw mechanism. In addition to the ordinary heavy right-handed neutrinos, there exits the scalar sextet coupled to leptons. We study the contributions of the right-handed neutrinos and the sextet to the lepton asymmetry.Go to contribution page
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Dr Jeonghoon Moon (KISTI)22/02/2012, 17:00In this paper, we shows research works of the NRM (Network Resource Management) system for efficient transmission of large-scale of data for HEP (High Energy Physics) as a user requirement based in international advanced scientific and technology research network and also announce the demonstrated about them. Each national research network of each countries consisting of 40 Giga network...Go to contribution page
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Prof. Kihyeon Cho (KISTI), Dr Soohyeon Nam (KISTI)22/02/2012, 17:00The current measurements of CP asymmetries in B -> K pi decays are in disagreement with the predictions of the Standard Model. In order to solve this discrepancy, using the effective Hamiltonian approach, we investigate the right-handed current contributions to B -> K pi decay amplitudes including all possible low-energy operators in the nonmanifest left-right model. We find the allowed region...Go to contribution page
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Dr Taegil Bae (KISTI)22/02/2012, 17:00The kaon semileptonic decay (Kl3) form factor is important to test the first row unitarity of the CKM matrix. We calculate the form factor at zero momentum transfer using staggered fermions on the lattices. To confirm that the calculation code gives the correct result, we need have tests in the gauge invariance and a Ward identity. Gauge invariance test consists of generating random SU(3)...Go to contribution page
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Prof. Steven Olsen (Seoul National U.)23/02/2012, 09:00BESIII is a new, state-of-the-art 4π detector at the recently upgraded BEPCII two-ring e+e- collider at the Institute for High Energy Physics in Beijing. The detector has been in operation for nearly three years, during which time it collected the world’s largest data samples of J/ψ, ψ’ and ψ(3770) decays. These data are being used to make interesting and unique studies of light-hadron...Go to contribution page
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Prof. Sunkee Kim (Seoul National U.)23/02/2012, 09:45
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Prof. Pyungwon Ko (KIAS)23/02/2012, 10:50I present some ideas on Higgs boson and cold dark matter, and the interplay between the two different subjects.Go to contribution page
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Prof. Bum-Hoon Lee (CQUeST, Sogang U.)23/02/2012, 11:35
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Ardy Mustofa (Yonsei Univ.)We investigate the vector-like fourth generation coming from Split-UED to the contribution of the Higgs physics. We calculate the cross section from one-loop induced $gg->H$ process, and the branching ratio from $H->gg$ and $H->\gamma \gamma$ processes. The work now is still in progress.Go to contribution page
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Jae Ho Heo (Yonsei Univ.)
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Thi Thuy Nguyen (Yonsei Univ.)In the 3-3-1 model with right-handed neutrinos, small neutrino masses can be obtained by introducing a Higgs sextet. The neutrino mass is the result of a type II seesaw mechanism. In addition to the ordinary heavy right-handed neutrinos, there exits the scalar sextet coupled to leptons. We study the contributions of the right-handed neutrinos and the sextet to the lepton asymmetry.Go to contribution page
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