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A new limit of T-violating transverse muon polarization in the $K^{+}topi^{0}mu^{+} u$ decay

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 نشر من قبل Jun Imazato
 تاريخ النشر 2004
  مجال البحث
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A search for T-violating transverse muon polarization ($P_T$) in the $K^{+}to pi^{0}mu^{+} u$ decay was performed using kaon decays at rest. A new improved value, $P_T= -0.0017pm 0.0023 (stat)pm 0.0011 (syst)$, was obtained giving an upper limit, $| P_T | < 0.0050$. The T-violation parameter was determined to be Im$xi = -0.0053 pm 0.0071(stat)pm 0.0036(syst)$ giving an upper limit, $|$Im$xi| <0.016$.



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45 - J. Imazato 2004
A search for T-violating muon polarization in the $K^+ to pi^0 mu^+ u$ decay has been performed at KEK using stopped kaons. A new improved limit was obtained, $P_T= -0.0017 pm 0.0023 (stat) pm 0.0011 (syst)$, corresponding to a 90 % confidence limit of $| P_T| < 0.0050$. The T-violating parameter was also determined to be Im$xi = -0.0053 pm 0.0071 (stat) pm 0.0036 (syst)$, and $|{rm Im}xi| < 0.016$ (90 % CL).
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