As first observed by the NA48/2 experiment at the CERN SPS, the pi(0)pi(0) invariant mass (M-00) distribution from K-+/- -> pi(+/-)pi(0)pi(0) decay shows a cusp-like anomaly at M-00 = 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. a(0) and a(2), respectively, has been recently reported In the present work the Dahtz plot of this decay is fitted to a new empirical parameterization suitable for practical purposes, such as Monte Carlo simulations of K-+/- -> pi(+/-)pi(0)pi(0) decays (C) 2010 Elsevier B V All rights reserved
Empirical parameterization of the K-+/- -> pi(+/-)pi(0)pi(0) decay Dalitz plot
COLLAZUOL, GIANMARIA;
2010
Abstract
As first observed by the NA48/2 experiment at the CERN SPS, the pi(0)pi(0) invariant mass (M-00) distribution from K-+/- -> pi(+/-)pi(0)pi(0) decay shows a cusp-like anomaly at M-00 = 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. a(0) and a(2), respectively, has been recently reported In the present work the Dahtz plot of this decay is fitted to a new empirical parameterization suitable for practical purposes, such as Monte Carlo simulations of K-+/- -> pi(+/-)pi(0)pi(0) decays (C) 2010 Elsevier B V All rights reservedFile in questo prodotto:
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Phys Lett B686 - Empirical parameterization of the K±→π±π0π0 decay Dalitz plot - collazuol.pdf
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