Coordinatori
Parallel Session 4 - Goldstone Boson WG
- Mario Antonelli (LNF)
- Sebastien Descotes-Genon (CNRS/Univ. Paris-Sud 11)
- Andreas Juettner (University of Southampton)
- Emilie Passemar (Indiana University/JLab)
Simona Giovannella
(INFN-LNF)
30/06/15, 16:20
Goldstone Boson Working Group
Talk
The KLOE experiment has collected 2.5 fb-1 at the peak of the phi resonance at the e+e- collider DAPHNE in Frascati.
The V-->Pgamma Dalitz decays, associated to internal conversion of the photon into a lepton pair, are not well described by the Vector Meson Dominance (VMD) models, as in the case of the process omega --> pi0 mu+ mu-, measured by the NA60 collaboration. The only existing data...
David Greynat
(INFN-Naples)
30/06/15, 16:50
Goldstone Boson Working Group
Talk
We will show how it is possible to implement a chiral symmetry breaking mechanism in soft-wall model of holographic QCD. We show also that it is possible to reproduce the exact Operator Product Expansion and the Regge spectra of the vector-vector and axial-axial correlators in the Large Nc limit. This method provides a nice way to perform the analytic continuation of the OPE and to predict the...
Pablo Sanchez Puertas
(Johannes Gutenberg University, Mainz)
30/06/15, 17:10
Goldstone Boson Working Group
Talk
Pseudoscalar-meson decays (π0, η, η ) into lepton pairs (e+e−, µ+µ−) are unique in its kind as they probe the neutral pseudoscalar meson structure in the whole energy-range. This structure, which is encoded in the doubly virtual transition form factor (TFF) governing their interactions with two photons, needs a complete energy description. In this work, we identify the relevant energy regimes...
Alessandro Rizzo
(INFN-Roma2)
30/06/15, 17:30
Goldstone Boson Working Group
Talk
The study of the hadronic spectrum is one of the most powerful tools to investigate the mechanism at the basis of quark confinement within hadrons. A precise determination of the spectrum allows not only to asses the properties of the hadrons in their fundamental and excited states, but also to investigate the existence of states resulting from alternative configurations of quarks and gluons...
Olga Shekhovtsova
(IFJ PAN, Krakow)
30/06/15, 17:50
Goldstone Boson Working Group
Talk
TAUOLA is a Monte Carlo generator dedicated to generating tau-lepton decays and it is used in the analysis of experimental data both at B-factories and LHC. TAUOLA is a long term project that started in the 90's and has been under development up to now. In the last years substantial progress for the simulation of the process: tau-> 3pions nu_tau was achieved. It is related with a new...
Maarten Golterman
(San Francisco State University)
30/06/15, 18:10
Goldstone Boson Working Group
Talk
We determined the NLO chiral low-energy constant L_10, and various combinations of NNLO chiral low-energy constants employing recently revised ALEPH results for the non-strange vector (V) and axial-vector (A) hadronic tau decay distributions and recently updated RBC/UKQCD lattice data for the non-strange V-A two-point function. In this talk, we explain the ingredients of this determination. ...
