HNP 2011, Pohang, Korea12015-11-23 Weak Pion Production and Strangeness Contents on the Hadron Myung-Ki CHEOUN (Soongsil Univ., Korea) and (Soongsil Univ.,

Slides:

Advertisements

Similar presentations

1 The and -Z Exchange Corrections to Parity Violating Elastic Scattering 周海清 / 东南大学物理系 based on PRL99,262001(2007) in collaboration with C.W.Kao, S.N.Yang.

Advertisements

Lattice study for penta-quark states

Direct CP Asymmetries in hadronic D decays Cai-Dian Lü ( 吕才典 ) IHEP, Beijing Based on work collaborated with Hsiang-nan Li, Fu-Sheng Yu, arXiv: ,

Branching Ratios of B c Meson Decaying to Vector and Axial-Vector Mesons Rohit Dhir Department of Physics, Yonsei University, Seoul, Korea. Dated:21-Sept-2012.

The Electromagnetic Structure of Hadrons Elastic scattering of spinless electrons by (pointlike) nuclei (Rutherford scattering) A A ZZ  1/q 2.

Some questions on quantum anomalies Roman Pasechnik Moscow State University, Moscow & Bogoliubov Lab of Theoretical Physics, JINR, Dubna 46-th Cracow School.

On description of resonance region in the FKR model Krzysztof M. Graczyk, Jan T. Sobczyk Institute of Theoretical Physics University of Wrocław Poland.

1. Introduction 2.     3.  p    n 4.     5.     A   A 6. Discussion 7. Summary Bosen Workshop 2007 Review on.

The chiral partner of the nucleon in the mirror assignment University Frankfurt Susanna Wilms in collaboration with: Francesco Giacosa and.

The angular dependence of the 16 O(e,e’K + ) 16  N and H(e,e’K + )  F. Garibaldi – Jlab December WATERFALL The WATERFALL target: reactions on.

The Baryon octet-vector meson interaction and dynamically generated resonances in the S=0 sector Bao-Xi SUN ( 孙宝玺 ) Beijing University of Technology Hirschegg.

Non-Relativistic Quantum Chromo Dynamics (NRQCD) Heavy quark systems as a test of non-perturbative effects in the Standard Model Victor Haverkort en Tom.

Parity violation in electron quasielastic scattering Kyungsik Kim School of Liberal Arts and Science, Korea Aerospace University, Korea 1.Introduction.

K*Λ(1116) Photoproduction and Nucleon resonances K*Λ(1116) Photoproduction and Nucleon resonances Sang-Ho Kim( 金相鎬 ) (NTG, Inha University, Korea) In collaboration.

Chiral condensate in nuclear matter beyond linear density using chiral Ward identity S.Goda (Kyoto Univ.) D.Jido （ YITP ） 12th International Workshop on.

Determining Strangeness Quark Spin in Neutrino-Nucleon Scattering at J-PARC T.-A. Shibata (Tokyo Tech) in collaboration with N. Saito (Kyoto Univ) and.

N* Production in α-p and p-p Scattering (Study of the Breathing Mode of the Nucleon) Investigation of the Scalar Structure of baryons (related to strong.

Instanton vacuum at finite density Hyun-Chul Kim Department of Physics Inha University S.i.N. and H.-Ch.Kim, Phys. Rev. D 77, (2008) S.i.N., H.Y.Ryu,

Hyun-Chul Kim Department of Physics Inha University In collaboration with H.Y. Ryu, A. Hosaka, A. Titov EFB 22, Sept. 10, meson photoproduction.

P Spring 2003 L5 Isospin Richard Kass

Few Body-18Santos, Brazil August 25, Meson Exchange Currents in Pion Double Charge Exchange Reaction Roman Ya. Kezerashvili NY City College of Technology.

Denis Parganlija, A Linear Sigma Model with Vector Mesons and Global Chiral Invariance Denis Parganlija In collaboration with Francesco Giacosa,

Masayasu Harada (Nagoya Univ.) based on M.H. and C.Sasaki, Phys.Rev.D74:114006,2006 at Chiral 07 (Osaka, November 14, 2007) see also M.H. and K.Yamawaki,

Parity violating neutron spin asymmetry of process in pionless effective theory Jae Won Shin Collaborators: Shung-Ichi Ando 1), Chang Ho Hyun 1), Seung-Woo.

Dynamical study of N-  transition with N(e,e'  ) Shin Nan Yang Department of Physics National Taiwan University Collaborators: G.Y. Chen, J.C. Chen (NTU)

12004, TorinoAram Kotzinian Neutrino Scattering Neutrino interactions Neutrino-electron scattering Neutrino-nucleon quasi-elastic scattering Neutrino-nucleon.

Masayasu Harada (Nagoya Univ.) based on (mainly) M.H. and K.Yamawaki, Phys. Rev. Lett. 86, 757 (2001) M.H. and C.Sasaki, Phys. Lett. B 537, 280 (2002)

Spin Polarization in d  → n p Chang Ho Hyun Daegu University Work with S. Ando (Daegu) Y.-H. Song (South Carolina) K. Kubodera (South Carolina) HNP2011,

Nucleon Polarizabilities: Theory and Experiments

Nucleon and Roper on the Lattice Y. Chen Institute of High Energy Physics, CAS, China Collaborating with S.J. Dong, T. Draper, I. Horvath, F.X. Lee, K.F.

Chiral symmetry breaking and low energy effective nuclear Lagrangian Eduardo A. Coello Perez.

KHALED TEILAB IN COLLABORATION WITH SUSANNA GALLAS, FRANCESCO GIACOSA AND DIRK H. RISCHKE Meson production in proton-proton scattering within an eLSM.

Time Dependent Quark Masses and Big Bang Nucleosynthesis Myung-Ki Cheoun, G. Mathews, T. Kajino, M. Kusagabe Soongsil University, Korea Asian Pacific Few.

* Collaborators: A. Pich, J. Portolés (Valencia, España), P. Roig (UNAM, México) Daniel Gómez Dumm * IFLP (CONICET) – Dpto. de Física, Fac. de Ciencias.

1 Longitudinal and transverse helicity amplitudes of nucleon resonances in a constituent quark model - bare vs dressed resonance couplings Introduction.

Weak decay of  in nuclear medium FCPPL-2015, USTC, April 8-12, 2015 Institute of High Energy Physics Qiang Zhao Institute of High Energy Physics, CAS.

Baryon Resonance Analysis from MAID D. Drechsel, S. Kamalov, L. Tiator.

Denis Parganlija (Frankfurt U.) Excited QCD 2010, Tatranska Lomnica/Slovakia Nature of Light Scalar Mesons f 0 (600), a 0 (980), f 0 (1370) and a 0 (1450)

Exotic baryon resonances in the chiral dynamics Tetsuo Hyodo a a RCNP, Osaka b ECT* c IFIC, Valencia d Barcelona Univ. 2003, December 9th A.Hosaka a, D.

Dynamical coupled-channels approach to meson production reactions in the N* region and its application to neutrino-nucleon/nucleus reactions Hiroyuki Kamano.

Physics 842, February 2006 Bogdan Popescu Presentation based on “Introduction to Elementary Particles” by David Griffiths WEAK INTERACTION (1)

PROPERTIES OF HIGH-ENERGY ISOSCALAR MONOPOLE EXCITATIONS IN MEDIUM-HEAVY MASS SPHERICAL NUCLEI M. L. Gorelik 1), S. Shlomo 2), B. A. Tulupov 3), M. H.

Integrating out Holographic QCD Models to Hidden Local Symmetry Masayasu Harada (Nagoya University) Dense strange nuclei and compressed baryonic matter.

Toru T. Takahashi with Teiji Kunihiro ・ Why N*(1535)? ・ Lattice QCD calculation ・ Result TexPoint fonts used in EMF. Read the TexPoint manual before you.

Georgie Mbianda 1 for the Baryon (E01-002) Collaboration 1 University of the Witwatersrand, Johannesburg Exclusive Electroproduction of π + and η mesons.

Tensor and Flavor-singlet Axial Charges and Their Scale Dependencies Hanxin He China Institute of Atomic Energy.

Beijing, QNP091 Matthias F.M. Lutz (GSI) and Madeleine Soyeur (Saclay) Irfu/SPhN CEA/ Saclay Irfu/SPhN CEA/ Saclay Dynamics of strong and radiative decays.

Study of sigma meson structure in D meson decay Masayasu Harada (Nagoya Univ.) at International Workshop on New Hadon Spectroscopy (November 21, 2012,

Moments and Structure Functions at Low Q 2 Rolf Ent, DIS Formalism - F 2 Moments: Old Analysis (R “Guess”…) - E L/T Separation  F 2, F 1,

On the Drell-Levy-Yan Relation for Fragmentation Functions T. Ito, W.Bentz(Tokai Univ.) K.Yazaki (Tokyo Woman’s University, and RIKEN) A.W.Thomas (JLab)

1 NJL model at finite temperature and chemical potential in dimensional regularization T. Fujihara, T. Inagaki, D. Kimura : Hiroshima Univ.. Alexander.

Denis Parganlija (Frankfurt U.) Finite-Temperature QCD Workshop, IST Lisbon Non-Strange and Strange Scalar Quarkonia Denis Parganlija In collaboration.

Possible Ambiguities of Neutrino-Nucleus Scattering in Quasi-elastic Region K. S. Kim School of Liberal Arts and Science, Korea Aerospace University, Korea.

H. Kamano , M. Morishita , M. Arima ( Osaka City Univ. )

Possible Ambiguities of Neutrino-Nucleus

Vector meson photoproduction

mesons as probes to explore the chiral symmetry in nuclear matter

Photoproduction of K* for the study of the structure of L(1405)

Photoproduction of K* for the study of L(1405)

Scalar Meson σ(600) in the QCD Sum Rule

The Structure of Nuclear force in a chiral quark-diquark model

Spontaneous P-parity breaking in QCD at large chemical potentials

Property of first orbital excitation baryons

Neutrino Reaction in Nuclear-Astro Physics

Regge Description of

Myung-Ki Cheoun Department of Physics,

Present status of bottom up model: sample works

Soongsil University, Seoul, Korea

Measurement of Parity-Violation in the N→△ Transition During Qweak

Presentation transcript:

HNP 2011, Pohang, Korea Weak Pion Production and Strangeness Contents on the Hadron Myung-Ki CHEOUN (Soongsil Univ., Korea) and (Soongsil Univ., Korea) and K. S. Kim (Hanguk Aviation Univ.)

HNP 2011, Pohang, Korea2Contents 0. Introduction 1. Motivation - PS and Scalar F.F. in the nucleon 2. Weak Pion Production - Chiral Ward Identity - Sigma and Sigma-like term in the transition amplitude 3. Induced PS FF, Pion F.F. PS F.F., and S F.F. in the transition amplitude for pion production 4. Results ( E_0, L_0,M_0, H_0 amplitudes, C.S.s) 5. Summary

HNP 2011, Pohang, Korea3 Giant Resonance Discrete Excited states Quasi Elastic Region Dip Region Delta Resonance Pion Threshold Cross Section q energy N * Resonance Hadronic Region Typical cross section by incident electron 0. Introduction

HNP 2011, Pohang, Korea4 1.Motivation( scalar FF and sigma term ) Explicit chiral symmetry breaking (ECSB) effects originated from quark masses can be realized as scalar form factor of the nucleon Sigma term is extracted from the pi - N scattering or weak- production from this scalar form factor through a low energy theorem. ( Extrapolation to t =0 point ) ( Extrapolation to t =0 point )

HNP 2011, Pohang, Korea5 Pseudo scalar form factor Pi – N Scatt. (Vector Current) Electro Prod. (Axial Current) Weak Current has both couplings !! => Weak Pion Production

HNP 2011, Pohang, Korea6 With the help of the interpolating pion field defined by and the definition of coupling constant the PS quark density can be parameterized as Contrary to the scalar form factor, therefore, the PS form factor is simply expressed as P.R.C 68, (03) (T.Fuchs & S.Scherer)

HNP 2011, Pohang, Korea7 2. Weak Pion Production We exploit the Green functions C_a,P_a and T_a, the nucleon matrix elements of the time ordered products of the relevant currents i.e., the weak current J, the axial current A, and the PS quark density P

HNP 2011, Pohang, Korea8 By exploiting the LSZ reduction

HNP 2011, Pohang, Korea9 Cheoun, Kim, Phys. Lett. B 645, 422 (07)

HNP 2011, Pohang, Korea10 3. Induced PS FF, Pion FF and PS FF in the pion electro-production The t-channel comprises of the pion poles from the induced PS and PS form factors

HNP 2011, Pohang, Korea11 4. Results (Amplitudes) Cheoun and Kim, JPSJ 79, (2010) and Phys. Lett. B 645, 422 (2007) Pion form factor is coupled with IPS and PS form factors !!

HNP 2011, Pohang, Korea12 Scalar FF can be realized in L_0 amplitude, but it is too small !!

HNP 2011, Pohang, Korea13 Scalar FF can be realized in the non-zero H_0 amplitude !!

HNP 2011, Pohang, Korea14 5. Results (Cross Sections for electro production)

HNP 2011, Pohang, Korea15 Transverse Cross section No problems in Transverse CS.!!

HNP 2011, Pohang, Korea16 Longitudinal Cross Section Longitudinal CS is so sensitive to FF and low energy limit !!

HNP 2011, Pohang, Korea17 6. Summary 1. In pion electro-production, the t-channel pole in Born terms is explained at the pion threshold as a sum of two pion poles. 2. The former comes from the induced PS form factor in the axial current and the latter results from the time component of the Sigma like term 3. In principle, the t-dependence of both form factors is fully different, so that the unique extraction of the form factors from the experimental data could leave another ambiguity.

HNP 2011, Pohang, Korea18 4. But, under the lowest effective lagrangian which maintains the GT relation, both form factors show the same t-dependence, and as a result the sum was shown to equally account for the t-channel in the tree diagram approach. the tree diagram approach. 5. In weak production, both scalar (sigma) and PS (sigma like) terms appear. In specific, the scalar form factor can be realized in the amplitudes at the pion threshold.

HNP 2011, Pohang, Korea19 Thanks for your attention !!! Thanks for your attention !!!

HNP 2011, Pohang, Korea20

HNP 2011, Pohang, Korea21

HNP 2011, Pohang, Korea22

HNP 2011, Pohang, Korea23 No expansion in \mu order !! L_0 amplitude Effect of PS F.F. seems not be so large, But it could be important in the extraction of Form Factors, L_0 amplitude High order of \mu could be important in the extraction of relevant form factors !!

HNP 2011, Pohang, Korea24

HNP 2011, Pohang, Korea25 Effect of PS F.F. seems not be so large, But it could be important in the extraction of Form Factors, L_0 amplitude