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ENERGY DEPENDENCE OF ${{\mathit K}^{\pm}}$ DALITZ PLOT

$\vert $matrix element$\vert ^2$ = 1 + $\mathit g{}\mathit u$ + $\mathit h{}\mathit u{}^{2}$ + $\mathit k{}\mathit v{}^{2}$ where $\mathit u$ = ($\mathit s_{3}$ $−$ $\mathit s_{0}$) $/$ ${{\mathit m}^{2}}_{{{\mathit \pi}}}$ and $\mathit v$ = ($\mathit s_{2}$ $−$ $\mathit s_{1}$) $/$ ${{\mathit m}^{2}}_{{{\mathit \pi}}}$

QUADRATIC COEFFICIENT $\mathit k$ FOR ${{\mathit K}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$

INSPIRE   PDGID:

S010KTP

VALUE EVTS DOCUMENT ID TECN CHG $\bf{ 0.0054 \pm0.0035}$ OUR AVERAGE  Error includes scale factor of 2.5. $0.0082$ $\pm0.0011$ $\pm0.0014$ 493k AKOPDZHANOV 2005 B TNF $\pm{}$ $0.001$ $\pm0.001$ $\pm0.002$ 252k 1 AJINENKO 2003 B ISTR - • • We do not use the following data for averages, fits, limits, etc. • • $0.0197$ $\pm0.0045$ $\pm0.0029$ 33k BATUSOV 1998 SPEC + 1  Measured using in-flight decays of the 25 GeV negative secondary beam.

References:

AKOPDZHANOV 2005B JETPL 82 675 Measurements of the Dalitz Plot Parameters for ${{\mathit K}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ Decays AJINENKO 2003B PL B567 159 Measurement of the Dalitz Plot Slope Parameters for ${{\mathit K}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{-}}$ Decay using ISTRA+ Detector BATUSOV 1998 NP B516 3 Measurement of Dalitz Plot Slope Parameters for ${{\mathit K}^{+}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ Decay

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