M. Aliev

Test of exotic scalar and tensor interactions in K(e3) decay using stopped positive kaons

The form factors of the decay K+ → π0e+νe (Ke3) have been determined from the comparison of the experimental and Monte Carlo Dalitz distributions containing about 105Ke3 events. The following values of the parameters were obtained: λ+=0.0278±0.0017 (stat.)±0.0015 (syst.), |fS/f+(0)|=0.0040±0.0160 (stat.)±0.0067 (syst.), and |fT/f+(0)|=0.019±0.080 (stat.)±0.038 (syst.). Both scalar fS and tensor fT form factors are consistent with the Standard Model predictions of zero values.

First measurement of the T-violating muon polarization in the decay K+→μ+νγ

Abstract We present the result of the first measurement of the T-violating transverse muon polarization P T in the decay K + → μ + νγ . This polarization is sensitive to new sources of CP-violation in the Higgs sector. Using data accumulated in the period 1996–1998 we have obtained P T =(−0.64±1.85(stat)±0.10(syst))×10 −2 which is consistent with no T-violation in this decay.

New Limit on the T-Violating Transverse Muon Polarization in K^+ ¿ pi^0mu^+nu Decays

A search for T-violating transverse muon polarization (P(T)) in the K+-->pi(0)mu(+)nu decay was performed using kaon decays at rest. A new improved value P(T)=-0.0017+/-0.0023(stat)+/-0.0011(syst) was obtained giving an upper limit |P(T)|<0.0050. The T-violation parameter was determined to be Imxi=-0.0053+/-0.0071(stat)+/-0.0036(syst) giving an upper limit |Imxi|<0.016.

A new limit of T-violating transverse muon polarization in the

A search for T-violating transverse muon polarization (P(T)) in the K+-->pi(0)mu(+)nu decay was performed using kaon decays at rest. A new improved value P(T)=-0.0017+/-0.0023(stat)+/-0.0011(syst) was obtained giving an upper limit |P(T)|<0.0050. The T-violation parameter was determined to be Imxi=-0.0053+/-0.0071(stat)+/-0.0036(syst) giving an upper limit |Imxi|<0.016.

K^{+}\to\pi^{0}\mu^{+} \nu

The radiative decay

decay

K^+ \to \pi^+ \pi^0 \gamma

Measurement of direct photon emission in K+→π+π0γ decay using stopped positive kaons

(

New result on the measurement of the direct photon emission in K+ --> pi^+ pi^0 gamma decay

K_{\pi 2 \gamma}

Measurement of K+→π0μ+νγ decay using stopped kaons

) has been measured with stopped positive kaons. A

Measurement of K+→π0μ+νγK+→π0μ+νγ decay using stopped kaons

K_{\pi 2 \gamma}