N. Achasov

activity

19962024

most citedThe new analysis of the KLOE data on the phi->eta pi0 gamma decay

84 citations · 1.4k across the 95 of their papers we have counts for

collaborators

95 papers

hep-ph2024

Estimate of the $S$ -wave $D^{*} K$ scattering length in the isospin-0 channel from Belle and LHCb data

N. N. Achasov, G. N. Shestakov

It is shown that the Belle and LHCb data on the interference of the amplitudes of the $S$ and $D$ partial waves in the decays $D_{s 1} (2536)^{+} \to D^{*+} K_{S}^{0}$ and $D_{s1}(2536)^-\t…

hep-ph2024

Qualitative explanation of the data on the decays $D^{0} \to a_{0} (980)^{\pm} π^{\mp}$ and $D^{+} \to a_{0} (980)^{+ (0)} π^{0 (+)}$ in the four-quark model of the $a_{0} (980)$ resonance

N. N. Achasov, G. N. Shestakov

It is shown that the values of the ratios $B (D^{0} \to a_{0} (980)^{+} π^{-}) / B (D^{0} \to a_{0} (980)^{-} π^{+})$ and $\mathcal{B}(D^+\to a_0(980)^+π^0)/\mathcal{B} (D^+\to a_0(980…

hep-ph2024

Tentative estimates of $B (X (3872) \to π^{0} π^{0} χ_{c 1})$ and $B (X (3872) \to π^{+} π^{-} χ_{c 1})$

N. N. Achasov, G. N. Shestakov

The rates of the $X (3872) \to π^{0} π^{0} χ_{c 1}$ and $X (3872) \to π^{+} π^{-} χ_{c 1}$ decays are estimated in the model of the triangle loop diagrams with charmed $D^{*} D ˉ D$ and $\bar D^*D\bar…

hep-ph2023

Estimates of absolute branching fractions for the $f_{0} (1710)$ decays and radiative transitions $ψ (2 S) \to γ f_{0} (1710)$ and $Υ (1 S) \to γ f_{0} (1710)$

N. N. Achasov, G. N. Shestakov

Using the result of the VES Collaboration for $B r (J / ψ \to γ f_{0} (1710))$ , we estimate the absolute branching fractions for the $f_{0} (1710)$ decays into $π π$ , $K K ˉ$ , $η η$ , $ω ω$ , and…

hep-ph2023

Coupled-channel influence on the $a_{0} (1700/1800)$ line shape

N. N. Achasov, G. N. Shestakov

The current situation with the recently discovered $a_{0} (1700/1800)$ resonance is very paradoxical: it is believed that $a_{0} (1700/1800)$ must be strongly coupled with two vector mes…

hep-ph2022★ 2 cited

Phenomenological description of the $π^{-} π^{+}$ $S$ -waves in $D^{+} \to π^{-} π^{+} π^{+}$ and $D_{s}^{+} \to π^{-} π^{+} π^{+}$ decays: The problem of phases

N. N. Achasov, G. N. Shestakov

We present a phenomenological description of the LHCb data for the magnitudes and phases of the $π^{-} π^{+}$ $S$ -wave amplitudes in the $D^{+} \to π^{-} π^{+} π^{+}$ and $D_{s}^{+} \to π^{-} π^{+} π^{+}$ decays…

Estimate of the S-wave D∗K scattering length in the isospin-0 channel from Belle and LHCb data

Qualitative explanation of the data on the decays D0→a0​(980)±π∓ and D+→a0​(980)+(0)π0(+) in the four-quark model of the a0​(980) resonance

Tentative estimates of B(X(3872)→π0π0χc1​) and B(X(3872)→π+π−χc1​)

Estimates of absolute branching fractions for the f0​(1710) decays and radiative transitions ψ(2S)→γf0​(1710) and Υ(1S)→γf0​(1710)

Coupled-channel influence on the a0​(1700/1800) line shape

Phenomenological description of the π−π+ S-waves in D+→π−π+π+ and Ds+​→π−π+π+ decays: The problem of phases

Estimate of the $S$ -wave $D^{*} K$ scattering length in the isospin-0 channel from Belle and LHCb data

Qualitative explanation of the data on the decays $D^{0} \to a_{0} (980)^{\pm} π^{\mp}$ and $D^{+} \to a_{0} (980)^{+ (0)} π^{0 (+)}$ in the four-quark model of the $a_{0} (980)$ resonance

Tentative estimates of $B (X (3872) \to π^{0} π^{0} χ_{c 1})$ and $B (X (3872) \to π^{+} π^{-} χ_{c 1})$

Estimates of absolute branching fractions for the $f_{0} (1710)$ decays and radiative transitions $ψ (2 S) \to γ f_{0} (1710)$ and $Υ (1 S) \to γ f_{0} (1710)$

Coupled-channel influence on the $a_{0} (1700/1800)$ line shape

Phenomenological description of the $π^{-} π^{+}$ $S$ -waves in $D^{+} \to π^{-} π^{+} π^{+}$ and $D_{s}^{+} \to π^{-} π^{+} π^{+}$ decays: The problem of phases