Chiral Dynamics 2006

Working Group Program

This workshop is the 5th in the series which started in 1994 at M.I.T. The previous workshops have been held at Mainz (1997), JLab (2000), and Bonn (2003). The 5th workshop will take place September 18th through the 22nd, 2006. The workshop will be hosted by Duke University (in association with Triangle Universities Nuclear Laboratory, TUNL). The purpose of this workshop series is to bring physicists together who are active in this field, as well as those who are interested, to discuss and debate the most recent and future developments in various topics related to the study of Chiral Dynamics. The workshop traditionally draws a near equal contribution from theorists and experimentalists.

Chiral Dynamics

The chiral symmetry present in the QCD Lagrangian along with Goldstone's theorem makes is possible to obtain an approximate QCD solution at low energies using an effective field theory known as chiral perturbation theory (ChPT) or Chiral Dynamics. Topics which will be discussed at this workshop are : Goldstone Boson Dynamics, Hadron Structure and Meson-Baryon Interactions, Few-Body Physics, and Lattice QCD and Chiral Perturbation Theory. In addition to the plenary talks, these topics will be the focus of three different working groups:

Working Group Leaders
Goldstone Boson Dynamics Gilberto Colangelo and Simona Giovannella
Hadron Structure & Meson-Baryon Interactions Thomas Hemmert, Jerry Feldman, and Alan Nathan
Few-Body Physics Hans-Werner Hammer, Dan Phillips, and Nasser Kalantar

 

Working Group Session On Goldstone Boson Dynamics

Leaders : Gilberto Colangelo and Simona Giovannella

Date
Monday September 18, 2006
Working Group Session 1A & 1B
Speaker
Goldstone Boson Dynamics
     
1:40-2:00 S. Goy Lopez Recent Results on Kaon Decays from the NA48 and NA48/2 experiments
2:00-2:20 B. Kubis Cusps in K to 3pi decays
2:20-2:40 Open  
2:40-3:00 M. Ronquest Recent results from KTeV
3:00-3:20 J. Stern Low-Energy Theorems and Electroweak precision Tests
3:30-4:00 Break  
4:05-4:25 J. Pelaez The pi pi scattering amplitude
4:25-4:45 I. Caprini Determination of the Regge parameters in the pi pi amplitude
4:45-5:05 P. Beltrame Results on the pion form factor measurement with the KLOE detector
5:05-5:25 H. Hu Measurement of R value and hadronic form factors at BES
5:25-5:45 A. Denig Measurement of multihadronic cross sections in the 1-4.5 GeV range with BaBar
5:45-6:05 C. Smith The pion vector form factor and (g-2)_mu

 

Date
Tuesday, September 19, 2006
Working Group Session 2A & 2B
Speaker
Goldstone Boson Dynamics
     
1:40-2:00 J. Bijnens Partially quenched CHPT results to two loops
2:00-2:20 P. Bedaque pi-pi scattering, scattering quantities calculated in lattice QCD
2:20-2:40 A. Walker-Loud Mesonic systems from lattice QCD
2:40-3:00 C. Bernard Low-energy constants from the MILC collaboration
3:00-3:20 G. Schierholz Recent results from QCDSF
3:30-4:00 Break  
4:05-4:25 L. Giusti N_f=2 lattice simulations at small quark masses
4:25-4:45 M. Golterman Do we understand the low-energy constant L_8?
4:45-5:05 M. Schmid Matching SU(3) CHPT to SU(2)
5:05-5:25 D. McNulty Progress Report on the pi0 Lifetime Experiment (Primex) at JLab
5:25-5:45 V. Kashevarov Pion polarizability
5:45-6:05 R. A. Lindgren Measurements of Electroproduction of pi0 near Threshold using a Large Acceptance Spectrometer

 

Date
Thursday, September 21, 2006
Working Group Session 3A & 3B
Speaker
Goldstone Boson Dynamics
     
1:40-2:00 B. Moussallam The kappa meson in pi K scattering
2:00-2:20 J. Oller Pseudoscalar masses (pi,kaon,eta), m_s/\hat{m}
2:20-2:40 M. Martini Results on light mesons decays and dynamics at KLOE
2:40-3:00 A. Kupsc Decays of eta and eta' Mesons with WASA Detector
3:00-3:20 V. Kabachenko Studying the decays of light mesons at VES experiment
3:30-4:00 Break  
4:05-4:25 T. Mehen Heavy Quark-Diquark symmetry and ChPT for Doubly Heavy baryons
4:25-4:45 R. Springer HHChPT applied to the charm-strange parity partners
4:45-5:05 D. Pocanic Study of pion structure through precise measurements of the pi+ --> e+ nu gamma decay
5:05-5:25 V. Mateu Vector resonance contribution to the radiative pion decay
5:25-5:45 A. Fuhrer Chiral logarithms
5:45-6:05 A. Quadri All orders symmetric renormalization of the nonlinear sigma model

 

 

Working Group Session On Hadron Structure & Meson-Baryon Interactions

Leaders : Thomas Hemmert, Jerry Feldman, and Alan Nathan

Date
Monday September 18, 2006
Working Group Session 1A & 1B
Speaker
Hadron Structure & Meson-Baryon Interactions
     
1.40 - 2.10 G. Schierholz Overview: Finite Volume lattice studies and comparison with ChEFT predictions
2.10 - 2.40 B. Tiburzi Overview: Calculations of O(a^n) effects for lattice actions from ChEFT
2.40 - 3.10 S. Simula Hyperon Properties from Lattice QCD
3.10 - 3.30 B. Musch Uncertainty bands for Chiral Extrapolations
3:30-4:00 Break  
4.05 - 4.35 C. Crawford Neutron and Proton Formfactor update (experiment+theory+large Q^2)
4.35 - 5.05 D. Alexandrou Overview: NN and NDelta Formfactors from the lattice (and chiral extrapolation)
5.05 - 5.35 S. Stave The gamma* p -> Delta Transition at low Q2 and the Pionic Contribution
5.35 - 6.05 F. Benmohktar Strange-quark contributions to the form factors of the nucleon

 

Date
Tuesday September 19, 2006
Working Group Session 2A & 2B
Speaker
Hadron Structure & Meson-Baryon Interactions
     
1.40 - 2.10 B. Pasquini Dynamical polarizabilities of the nucleon
2.10 - 2.40 F. Lee Polarizabilities from the lattice
2.40 - 3.00 H.Gao New perspectives from polarized Compton scattering on the nucleon
3.00 - 3.30 C. Hyde-Wright What have we learned from measurements of generalized polarizabilities
3:30-4:00 Break  
4.05 - 4.35 C. Roberts Constraining Bethe-Salpeter Quark Models from Chiral Dynamics
4.35 - 5.05 S. Gardner Radiative neutron beta decay
5.05 - 5.35 T. Gail Comparison between different schemes for covariant BChPT
5.35 - 6.05 J. Oller Status of SU(3) Chiral Dynamics for Baryons

 

Date
Thursday September 21, 2006
Working Group Session 3A & 3B
Speaker
Hadron Structure & Meson-Baryon Interactions
     
1.40 - 2.10 M. Kotulla Overview:Experimental studies of mass shift of hadrons in systems with finite density/comparsison w. chiral prediction
2.10 - 2.40 D. Furnstahl Overview: ChEFT calculations for finite density
2.40 - 3.10 P. Camerini Kaon condensation and hypernuclear physics
3.10 - 3.30 A. Deur GDH sum rule
3:30-4:00 Break  
4.05 - 4.35 D. Richards Overview: (Moments of) GPDs from the lattice (and chiral extrapolation)
4.35 - 5.05 J.W. Chen Overview: ChEFT calculations for PDFs/GPDs/spin of the nucleon
5.05 - 5.35 M. W. Ahmed Status of Pion Production near threshold---Update Experiment
5.35 - 6.05 L. Tiator Near Threshold Pion Photoproduction---Update Theory

 

 

Working Group Session On Few-Body Physics

Leaders : Hans-Werner Hammer, Daniel Phillips, and Nasser Kalantar

Date
Monday September 18, 2006
Working Group Session 1A & 1B
Speaker
Few-Body Physics
     
1.40 - 2.05 Bira van Kolck Panel on power counting for short-distance operators
2.05 - 2.30 Ulf Meissner Panel on power counting for short-distance operators
2.30 - 2.55 Manuel Pavon Valderrama Panel on power counting for short-distance operators
2.55 - 3.25 Discussion Panel on power counting for short-distance operators
3:25-3:55 Break  
3:55 - 4.25 Silas Beane The challenge of calculating baryon-baryon scattering from lattice QCD
4.25 - 4.50 Steve Vigdor IUCF np experiment for the measurement of the piNN coupling constant
4.50 - 5.15 Shelley Page Probing hadronic parity violation using few-nucleon systems
5.15 - 5.40 Calvin Howell Extracting the neutron-neutron scattering length from nd breakup
5.40 - 6.05 Anders Gardestig Extracting the neutron-neutron scattering length from pion capture on deuterium

 

Date
Tuesday September 19, 2006
Working Group Session 2A & 2B
Speaker
Few-Body Physics
     
1.40 - 2.05 Lucas Platter Recent progress in the pionless theory calculations in A=3 and 4
2.05 - 2.25 Oliver Zimmer A new measurement of the neutron-deuteron scattering length from PSI
2.25 - 2.45 Tom Clegg The A_y puzzle in the three- and four-nucleon system
2.45 - 3.05 All What next for the pionless theory? Discussion
3:05-3:30 Dean Lee Simulating the pionless theory on the lattice
3:30-4:00 Break  
4.00 - 4.40 Johan Messchendorp Results from KVI: Nd elastic scattering
4.40 - 5.05 Kimiko Sekiguchi Results on three-nucleon experiments from RIKEN
5.05 - 5.25 Discussion Future plans for three-nucleon experiments
5.25 - 5.38 Paul Debevec A new opportunity to determine the total photon absorption cross section of Helium-4
5.38 - 5.51 Xing Zong Three-body photodisintegration of Helium-3 with double polarizations at the HIGS facility
5.51 - 6.05 Fred Myhrer Large two-pion-exchange contributions to the pp->pp pi^0 reaction

 

Date
Thursday September 21, 2006
Working Group Session 3A & 3B
Speaker
Few-Body Physics
     
1.40 - 2.20 Evgeni Epelbaum Towards a systematic theory of nuclear forces and nuclear currents
2.20 - 3.00 Winfried Leidemann Ab initio calculations of electromagnetic reactions on light nuclei
3.00 - 3.25 Renee Fatemi Electron scattering from a polarized deuterium target at BLAST
3.25 - 3.38 Vadim Lensky Neutron-neutron scattering length from gamma d->pi^+ nn
3:38-4:05 Break  
4.05-4.18 Satoshi Nakamura Renormalization group analysis of nuclear current operators
4.18 - 4.38 Kevin Fissum Recent results and future plans at MAXLab
4.38 - 4.58 Harald Griesshammer Deuteron Compton Scattering and its lessons for chiral power counting
4.58 - 5.18 Deepshikha Choudhury Compton scattering on Helium-3 in chiral EFT
5.18 - 5.38 All Discussion on future experimental and theoretical developments for Compton scattering
5.38 - 6.00 All General Working Group discussion

 

 

 

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