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Hadronic structure in t -  (K K p) - n t decays

Hadronic structure in t -  (K K p) - n t decays. Work done in collaboration with D. Gómez-Dumm, A. Pich, J. Portolés. See Phys.Rev.D69:073002,2004 ; AIP Conf.Proc.964:40-46,2007 ; Work to appear soon. Pablo Roig Pablo.Roig@ific.uv.es Instituto de Física Corpuscular

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Hadronic structure in t -  (K K p) - n t decays

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  1. Hadronic structure in t- (K K p)-nt decays Work done in collaboration with D. Gómez-Dumm, A. Pich, J. Portolés See Phys.Rev.D69:073002,2004 ; AIP Conf.Proc.964:40-46,2007 ; Work to appear soon Pablo Roig Pablo.Roig@ific.uv.es Instituto de Física Corpuscular CSIC-UVEG València (Spain) Moriond QCD and High Energy Interactions March 8-15 2008

  2. TOOLS: EFFECTIVE FIELD THEORIES QCD EFT EFT Low energy expansion Intermediate region cPT 1/Nc (Gasser & Leutwyler ’84, ’85) (‘t Hooft ’74, Witten ‘79)  # 0-width resonances Tree level diagrams Hadronic structure in t-(2K p)- ntPablo Roig (IFIC) Moriond QCD '08

  3. TOOLS: EFFECTIVE FIELD THEORIES QCD Hadronic structure in t-(2K p)- ntPablo Roig (IFIC) Moriond QCD '08

  4. TOOLS: EFFECTIVE FIELD THEORIES QCD THEORETICAL PILLARS OF OUR WORK: • Chiral symmetry at low energies • Resonance Exchange guided by Large NC • Asymptotic behaviour requiring Brodsky-Lepage behaviour to the Form Factors Hadronic structure in t-(2K p)- ntPablo Roig (IFIC) Moriond QCD '08

  5. HADRONIC DECAYS OF THE t LEPTON   Phys.Rev.D69:073002,2004   F a m a m      V V GV, FV a m  a m      i Lagrangian formulation: Structure of operators determined by symmetries V A a m    gi    ci di V V V V   v m v m v m v m       Hadronic structure in t-(2K p)- ntPablo Roig (IFIC) Moriond QCD '08

  6. DIFFERENT PREDICTIONS FOR THE KKp CHANNELS LO NLO FA FA F4V V NV/NA Yes CLEO ‘04 1.5 This work Pich et al. ‘00  3 - Pich et al. ‘90  9 Finkemeier, Mirkes ‘96  0.4 Hadronic structure in t-(2K p)- ntPablo Roig (IFIC) Moriond QCD '08

  7. t- (2K p)- nt K+K-p- K-K0p0 “BEST“ FITS Hadronic structure in t-(2K p)- ntPablo Roig (IFIC) Moriond QCD '08

  8. CONCLUSIONS • Current analyses of t-  (3p-,K+K-p-) nt data using TAUOLA have shown noticeable inconsistencies. We would like to improve the hadronic matrix elements in TAUOLA. • We have studied these decays within RcT with a Large NC-inspired model guided by QCD. • We have revisited t-  3p- nt obtaining a better parameterization. • We have found Vector Current dominance on the 2K p channels. • Our results have been implemented in SHERPA (LHC and TEVATRON) and may be used by the B-factories. • LHC, BABAR, BELLE, BES-III…are promising facilities to test our predictions. • The future looks even more promising and exciting: Vus,ms, mnt and, of course, improving our knowledge of QCD through the hadronization of its currents. Hadronic structure in t-(2K p)- ntPablo Roig (IFIC) Moriond QCD '08

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