Empirical parameterization of the K+- -> pi+- pi0 pi0 decay Dalitz plot
High Energy Physics - Experiment
2014-11-20 v1
Abstract
As first observed by the NA48/2 experiment at the CERN SPS, the invariant mass (M00) distribution from decay shows a cusp-like anomaly at M00=2m+, where m+ is the charged pion mass. An analysis to extract the pi pi scattering lengths in the isospin I=0 and I=2 states, a0 and a2, respectively, has been recently reported. In the present work the Dalitz plot of this decay is fitted to a new empirical parameterization suitable for practical purposes, such as Monte Carlo simulations of K+- -> pi+- pi0 pi0 decays.
Cite
@article{arxiv.1004.1005,
title = {Empirical parameterization of the K+- -> pi+- pi0 pi0 decay Dalitz plot},
author = {J. R. Batley and A. J. Culling and G. Kalmus and C. Lazzeroni and D. J. Munday and M. W. Slater and S. A. Wotton and R. Arcidiacono and G. Bocquet and N. Cabibbo and A. Ceccucci and D. Cundy and V. Falaleev and M. Fidecaro and L. Gatignon and A. Gonidec and W. Kubischta and A. Norton and A. Maier and M. Patel and A. Peters and S. Balev and P. L. Frabetti and E. Goudzovski and P. Hristov and V. Kekelidze and V. Kozhuharov and L. Litov and D. Madigozhin and E. Marinova and N. Molokanova and I. Polenkevich and Yu. Potrebenikov and S. Stoynev and A. Zinchenko and E. Monnier and E. Swallow and R. Winston and P. Rubin and A. Walker and W. Baldini and A. Cotta Ramusino and P. Dalpiaz and C. Damiani and M. Fiorini and A. Gianoli and M. Martini and F. Petrucci and M. Savrié and M. Scarpa and H. Wahl and M. Calvetti and E. Iacopini and G. Ruggiero and A. Bizzeti and M. Lenti and M. Veltri and M. Behler and K. Eppard and K. Kleinknecht and P. Marouelli and L. Masetti and U. Moosbrugger and C. Morales Morales and B. Renk and M. Wache and R. Wanke and A. Winhart and D. Coward and A. Dabrowski and T. Fonseca Martin and M. Shieh and M. Szleper and M. Velasco and M. D. Wood and G. Anzivino and E. Imbergamo and A. Nappi and M. Piccini and M. Raggi and M. Valdata-Nappi and P. Cenci and M. Pepe and M. C. Petrucci and C. Cerri and R. Fantechi and G. Collazuol and L. DiLella and G. Lamanna and I. Mannelli and A. Michetti and F. Costantini and N. Doble and L. Fiorini and S. Giudici and G. Pierazzini and M. Sozzi and S. Venditti and B. Bloch-Devaux and C. Cheshkov and J. B. Chèze and M. De Beer and J. Derré and G. Marel and E. Mazzucato and B. Peyaud and B. Vallage and M. Holder and M. Ziolkowski and C. Biino and N. Cartiglia and F. Marchetto and S. Bifani and M. Clemencic and S. Goy Lopez and H. Dibon and M. Jeitler and M. Markytan and I. Mikulec and G. Neuhofer and L. Widhalm},
journal= {arXiv preprint arXiv:1004.1005},
year = {2014}
}
Comments
9 pages, 3 figures.