G. N. Shestakov

collaborators

4 papers

hep-ph2025

Phenomenological description of the $D_{s 0}^{*} (2317) \to D_{s} I ¨ ^{0}$ decay

N. N. Achasov, G. N. Shestakov

For coupled channels $D^{0} K^{+}$ , $D^{+} K^{0}$ , $D_{s}^{+} I^\cdot$ , and $D_{s}^{+} I ¨ ^{0}$ , the $S$ -wave scattering amplitudes are constructed taking into account the mixing of the isoscalar resonance $D…

hep-ph2025

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 $D^{0} \to a_{0} (980)^{\pm} I ¨ ^{\mp}$ and $D^{+} \to a_{0} (980)^{+ (0)} I ¨ ^{0 (+)}$ 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 $B (D^{0} \to a_{0} (980)^{+} I ¨ ^{-}) / B (D^{0} \to a_{0} (980)^{-} I ¨ ^{+})$ and $\mathcal{B}(D^+\to a_0(980)^+Ï^0)/\mathcal{B} (D^+\to a_0(…

hep-ph2024

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

N. N. Achasov, G. N. Shestakov

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

Phenomenological description of the Ds0∗​(2317)→Ds​I¨0 decay

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)±I¨∓ and D+→a0​(980)+(0)I¨0(+) in the four-quark model of the a0​(980) resonance

Tentative estimates of B(X(3872)→I¨0I¨0I¨c1​) and B(X(3872)→I¨+I¨−I¨c1​)

Phenomenological description of the $D_{s 0}^{*} (2317) \to D_{s} I ¨ ^{0}$ decay

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 $D^{0} \to a_{0} (980)^{\pm} I ¨ ^{\mp}$ and $D^{+} \to a_{0} (980)^{+ (0)} I ¨ ^{0 (+)}$ in the four-quark model of the $a_{0} (980)$ resonance

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