Siberian Branch of the Russian Academy of Sciences

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19972026

most citedAncient human genomes suggest three ancestral populations for present-day Europeans

1.5k citations

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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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52 papers · 1 filter

hep-ph2026

Relativistic effects in heavy mesons

I. V. Obraztsov, A. E. Bondar, A. I. Milstein

We discuss the application of a relativistic potential model to the description of the spectrum and radiative transitions in mesons containing at least one heavy quark (b or c). Al…

hep-ph2025

Charge asymmetry in the process $e^{+} e^{-} \to π^{+} π^{-} π^{0} γ$

I. V. Obraztsov, A. S. Rudenko, A. I. Milstein

The charge asymmetry in the process $e^{+} e^{-} \to π^{+} π^{-} π^{0} γ$ is studied for photons with energies $ν ≪ s$ . The longitudinal polarization of electrons (positrons) is taken into…

hep-ph2025★ 3 cited

Phenomenology of $D_{s 1}$ mesons radiative transitions

A. E. Bondar, A. I. Milstein

We discuss radiative transitions $D_{s 1} \to D_{s} γ$ and $D_{s 1} \to D_{s}^{*} γ$ of $p$ -wave mesons. Since $D_{s 1}$ mesons have no a certain $C$ -parity, and the masses of q…

hep-ph2025

NGAMMA: A Monte Carlo generator for multiphoton production in $e^{+} e^{-}$ annihilation

L. V. Kardapoltsev, N. A. Melnikova

We present the NGAMMA Monte Carlo event generator for QED processes of $e^{+} e^{-}$ annihilation into a multiphoton final state, $e^{+} e^{-} \to N γ (N \geq 2)$ . These processes are an importa…

hep-ph2024

Single-quantum annihilation of positrons at low energies

Peter. A. Krachkov, Simon. V. Sorokin

We discuss the single-quantum positron annihilation with a bound electron in the near threshold region. The angular distribution and the total cross section are considered. We obta…

hep-ph2023

Soft photon approximation in a laser field

P. A. Krachkov

In the present paper, we consider processes involving the emission of soft photons in the presence of a strong laser field. We demonstrate that the matrix element $S$ for a process…

hep-ph2022

Resonant amplification of a relativistic electron bremsstrahlung on an atom in the undulator field

P. A. Krachkov, A. I. Milstein, N. Yu. Muchnoi

It is shown that the influence of the undulator field on the motion of a relativistic electron leads to a significant increase of the bremsstrahlung cross section on an atom near t…

hep-ph2022★ 3 cited

Photoproduction of $e^{+} e^{-}$ pair in a Coulomb field near the threshold

P. A. Krachkov, R. N. Lee, A. I. Milstein

We consider the electron-positron pair production by a photon in Coulomb field near threshold. We obtain the analytical results for the particle energy spectrum and angular distrib…

hep-ph2022★ 35 cited

Charge asymmetry in $e^{+} e^{-} \to π^{+} π^{-}$ process

Fedor Ignatov, Roman N. Lee

We consider the charge asymmetry in the differential cross section of the process $e^{+} e^{-} \to π^{+} π^{-}$ . Experimental data show large deviations from the results of the avail…

hep-ph2022★ 6 cited

Effects of isospin violation in the $e^{+} e^{-} \to B^{()} B ˉ^{()}$ cross sections

A. E. Bondar, A. I. Milstein, R. V. Mizuk +1

Model estimates are obtained for the influence of Coulomb effects on the ratio of the cross sections for the production of charged and neutral $B B ˉ$ and $B^{*} B ˉ^{*}$ pairs in…

hep-ph2022★ 11 cited

Final-state interaction in the process $e^{+} e^{-} \to Λ_{c} Λ ˉ_{c}$

A. I. Milstein, S. G. Salnikov

We show that the final-state interaction explains the nontrivial near-threshold energy dependence of the cross section of the process $e^{+} e^{-} \to Λ_{c} Λ ˉ_{c}$ observed…

hep-ph2021★ 7 cited

Invariant-mass spectrum of $Λ Λ ˉ$ pair in the process $e^{+} e^{-} \to ϕ Λ Λ ˉ$

A. I. Milstein, S. G. Salnikov

We show that the final-state interaction perfectly explains the recent experimental data of BESIII Collaboration on the near-threshold invariant-mass spectrum of $Λ Λ ˉ$ in the pr…

hep-ph2021★ 13 cited

Coulomb effects in the decays $Υ (4 S) \to B B ˉ$

A. I. Milstein, S. G. Salnikov

A simple exactly solvable model is proposed for describing the decays $Υ (4 S) \to B^{0} B ˉ^{0}$ and $Υ (4 S) \to B^{+} B^{-}$ . Our predictions agree with available experimen…

hep-ph2021★ 54 cited

Possible studies at the first stage of the NICA collider operation with polarized and unpolarized proton and deuteron beams

V. V. Abramov, A. Aleshko, V. A. Baskov +32

This paper contains suggestions for experiments with usage of the Spin Physics Detector (SPD) at the first stage of the SPD NICA Programme developing at JINR. Double polarized pp-,…

hep-ph2020★ 9 cited

Charge asymmetry in decays $B \to D D ˉ K$

A. E. Bondar, A. I. Milstein

We discusses the charge asymmetry in $B \to D D ˉ K$ decays with an invariant mass of the $D D ˉ$ pair near the $Ψ (3770)$ resonance. Unlike $Ψ (3770)$ decays in $ e^+e^…

hep-ph2020★ 24 cited

Evidence of the four-quark nature of $f_{0} (980)$ and $f_{0} (500)$

N. N. Achasov, J. V. Bennett, A. V. Kiselev +2

There exists a great deal of concrete evidence in favor of the exotic four-quark nature of light scalars. At the same time, the further expansion of the area of the $q^{2} q ˉ^{2}$ m…

hep-ph2020★ 5 cited

Photon Collider for energies 1-2 TeV

Ilya F. Ginzburg, Gleb L. Kotkin

We discuss a photon collider based on the $e^{+} e^{-}$ \ linear collider with energies of $2 E = 1 \div 2$ TeV in cms (ILC, CLIC, ...). Previously, this energy range was considered hopeless…

hep-ph2019★ 34 cited

J/ $ψ$ p Scattering Length from GlueX Threshold Measurements

Igor Strakovsky, Denis Epifanov, Lubomir Pentchev

The quality of the recent GlueX $J / ψ$ photoproduction data from Hall~D at Jefferson Laboratory, and the proximity of the data to the energy threshold, gives access to a variety of…

hep-ph2019★ 10 cited

Consistent analysis of $f_{1} (1285)$ meson form factors

A. I. Milstein, A. S. Rudenko

Parameterization of the form factors of $f_{1} (1285)$ meson is proposed. This parameterization is consistent with the available experimental data on the cross sections of $f_1 (1285…

hep-ph2019★ 2 cited

A study of the corrections to factorization in $B ˉ^{0} \to D^{*+} ω π^{-}$

S. I. Eidelman, L. V. Kardapoltsev, D. V. Matvienko

A factorization hypothesis is tested by examining a form factor of the $ω π$ production in hadronic $B^{0} \to D^{*\pm} ω π^{\mp}$ decays. The form factor is compared to that from ava…

hep-ph2019★ 14 cited

Strong isospin symmetry breaking in light scalar meson production

N. N. Achasov, G. N. Shestakov

Isospin symmetry breaking is discussed as a tool for studying the nature and production mechanisms of light scalar mesons. We are concerned with isospin breaking effects with an am…

hep-ph2019★ 11 cited

Differential equations, recurrence relations, and quadratic constraints for $L$ -loop two-point massive tadpoles and propagators

Roman N. Lee, Andrei A. Pomeransky

We consider $L$ -loop two-point tadpole (watermelon) integral with arbitrary masses, regularized both dimensionally and analytically. We derive differential equation system and recu…

hep-ph2019★ 16 cited

High-energy bremsstrahlung on atoms in a laser field

P. A. Krachkov, A. Di Piazza, A. I. Milstein

The impact of a laser field on the process of photon radiation by an ultra-relativistic electron in an atomic field is investigated. The angular distribution and the spectrum of th…

hep-ph2019★ 53 cited

Matter dependence of the four-loop QCD cusp anomalous dimension: from small angles to all angles

Robin Brüser, Andrey Grozin, Johannes M. Henn +1

We compute the fermionic contributions to the cusp anomalous dimension in QCD at four loops as an expansion for small cusp angle. As a byproduct we also obtain the respective terms…

Relativistic effects in heavy mesons

Charge asymmetry in the process e+e−→π+π−π0γ

Phenomenology of Ds1​ mesons radiative transitions

NGAMMA: A Monte Carlo generator for multiphoton production in e+e− annihilation

Single-quantum annihilation of positrons at low energies

Soft photon approximation in a laser field

Resonant amplification of a relativistic electron bremsstrahlung on an atom in the undulator field

Photoproduction of e+e− pair in a Coulomb field near the threshold

Charge asymmetry in e+e−→π+π− process

Effects of isospin violation in the e+e−→B(∗)Bˉ(∗) cross sections

Final-state interaction in the process e+e−→Λc​Λˉc​

Invariant-mass spectrum of ΛΛˉ pair in the process e+e−→ϕΛΛˉ

Coulomb effects in the decays Υ(4S)→BBˉ

Possible studies at the first stage of the NICA collider operation with polarized and unpolarized proton and deuteron beams

Charge asymmetry in decays B→DDˉK

Evidence of the four-quark nature of f0​(980) and f0​(500)

Photon Collider for energies 1-2 TeV

J/ψp Scattering Length from GlueX Threshold Measurements

Consistent analysis of f1​(1285) meson form factors

A study of the corrections to factorization in Bˉ0→D∗+ωπ−

Strong isospin symmetry breaking in light scalar meson production

Differential equations, recurrence relations, and quadratic constraints for L-loop two-point massive tadpoles and propagators

High-energy bremsstrahlung on atoms in a laser field

Matter dependence of the four-loop QCD cusp anomalous dimension: from small angles to all angles

Charge asymmetry in the process $e^{+} e^{-} \to π^{+} π^{-} π^{0} γ$

Phenomenology of $D_{s 1}$ mesons radiative transitions

NGAMMA: A Monte Carlo generator for multiphoton production in $e^{+} e^{-}$ annihilation

Photoproduction of $e^{+} e^{-}$ pair in a Coulomb field near the threshold

Charge asymmetry in $e^{+} e^{-} \to π^{+} π^{-}$ process

Effects of isospin violation in the $e^{+} e^{-} \to B^{()} B ˉ^{()}$ cross sections

Final-state interaction in the process $e^{+} e^{-} \to Λ_{c} Λ ˉ_{c}$

Invariant-mass spectrum of $Λ Λ ˉ$ pair in the process $e^{+} e^{-} \to ϕ Λ Λ ˉ$

Coulomb effects in the decays $Υ (4 S) \to B B ˉ$

Charge asymmetry in decays $B \to D D ˉ K$

Evidence of the four-quark nature of $f_{0} (980)$ and $f_{0} (500)$

J/ $ψ$ p Scattering Length from GlueX Threshold Measurements

Consistent analysis of $f_{1} (1285)$ meson form factors

A study of the corrections to factorization in $B ˉ^{0} \to D^{*+} ω π^{-}$

Differential equations, recurrence relations, and quadratic constraints for $L$ -loop two-point massive tadpoles and propagators