V. Obraztsov

activity

19972026

most citedStudy of the decay K+ => pi+,nu,nubar in the momentum region 140<Ppi<199 MeV/c

333 citations · 2.6k across the 81 of their papers we have counts for

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5 papers · 1 filter

hep-ph2025

Does the existence of $f_{0}$ meson enlarge the $K^{+} \to π^{0} π^{0} π^{0} e^{+} ν$ decay probability?

E. K. Karkaryan, V. F. Obraztsov, M. I. Vysotsky

We estimate a possible contribution of the two-pion system $f_{0} (500)$ wide resonance to the decay probability of the super rare decay $K^{+} \to 3 π^{0} e^{+} ν$ . We vary the width of the…

hep-ph2024★ 3 cited

On the $K^{+} \to π^{0} π^{0} π^{0} e^{+} ν$ decay

E. K. Karkaryan, K. V. Kiselev, V. F. Obraztsov +2

The OKA Collaboration has obtained a new upper limit on the $K^{+} \to π^{0} π^{0} π^{0} e^{+} ν$ decay probability which is 65 times lower than the one currently listed by PDG. However it is…

hep-ph2002

Contributions of leptoquark interactions into the tensor and scalar form factors of K to pi l nu_l decay

V. V. Kiselev, A. K. Likhoded, V. F. Obraztsov

In the framework of scalar-vector dominance we calculate the hadronic matrix elements of scalar and tensor effective quark currents induced by virtual leptoquark interactions. Comb…

hep-ph1999★ 12 cited

Multiplicity Fluctuations in One- and Two-Dimensional Angular Intervals Compared with Analytic QCD Calculations

B. Buschbeck, F. Mandl

Multiplicity fluctuations in rings around the jet axis and in off-axis cones have been measured by the DELPHI collaboration in $e^{+} e^{-}$ annihilations into hadrons at LEP energies.…

hep-ph1997★ 48 cited

Search for Anomalous Top--Quark Interaction at LEP-2 Collider

V. F. Obraztsov, S. R. Slabospitsky, O. P. Yushchenko

We show that a search for $e^{+} e^{-} \to t q ˉ$ $(q ˉ = c ˉ, u ˉ)$ events at LEP--2 collider provide a possibility to improve significantly the modern constraints on coup…

Does the existence of f0​ meson enlarge the K+→π0π0π0e+ν decay probability?

On the K+→π0π0π0e+ν decay

Contributions of leptoquark interactions into the tensor and scalar form factors of K to pi l nu_l decay

Multiplicity Fluctuations in One- and Two-Dimensional Angular Intervals Compared with Analytic QCD Calculations

Search for Anomalous Top--Quark Interaction at LEP-2 Collider

Does the existence of $f_{0}$ meson enlarge the $K^{+} \to π^{0} π^{0} π^{0} e^{+} ν$ decay probability?

On the $K^{+} \to π^{0} π^{0} π^{0} e^{+} ν$ decay