E. K. Karkaryan

activity

20212026

most citedLHC as a photon-photon collider: bounds on

Γ_{X \to γ γ}

6 citations · 9 across the 7 of their papers we have counts for

collaborators

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8 papers · 1 filter

hep-ph2026

Sgoldstino Phenomenology at SND@HL-LHC

D. Kalashnikov, E. K. Karkaryan

We study the phenomenology of light scalar sgoldstinos, with masses from the dimuon threshold up to a few GeV, focusing on their production and detection prospects at the SND@HL-LH…

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-ph2024

On the determination of the relative probability of $Υ (5 S) \to B_{s}^{()} B ˉ_{s}^{()}$ decays

A. E. Bondar, E. K. Karkaryan, A. A. Simovonian +1

Semileptonic decays of the $B B$ pairs produced in the $Υ (5 S)$ can be used to find the relative probability of $Υ (5 S) \to B_{s} B_{s}$ decay…

hep-ph2023

On production of heavy charged particles in $γ γ$ fusion at planned $pp$ colliders

S. I. Godunov, E. K. Karkaryan, V. A. Novikov +3

Production of heavy fermions in ultraperipheral collisions ( $pp \to p + γ γ + p \to p + χ^{+} χ^{-} + p$ ) and the semiexclusive reaction ( $pp \to p + γ γ^{*} + X \to p + χ^{+} χ^{-} + X$ ) is considered.…

hep-ph2023

libepa -- a C++/Python library for calculations of cross sections of ultraperipheral collisions

E. V. Zhemchugov, S. I. Godunov, E. K. Karkaryan +3

The library provides a set of C++/Python functions for computing cross sections of ultraperipheral collisions of high energy particles under the equivalent photons approximation. C…

Sgoldstino Phenomenology at SND@HL-LHC

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

On the K+→π0π0π0e+ν decay

On the determination of the relative probability of Υ(5S)→Bs(∗)​Bˉs(∗)​ decays

On production of heavy charged particles in γγ fusion at planned pp colliders

libepa -- a C++/Python library for calculations of cross sections of ultraperipheral collisions

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

On the determination of the relative probability of $Υ (5 S) \to B_{s}^{()} B ˉ_{s}^{()}$ decays

On production of heavy charged particles in $γ γ$ fusion at planned $pp$ colliders