N. Achasov

发表

D ec 2 02 1 η ( 1295 ) → 3 π decays

N. Achasov, G. Shestakov, 2021 .

Pion form factor in the range −10 GeV2 ≤ s ≤ 1 GeV2

N. Achasov, A. Kozhevnikov, 2012, 1209.5524.

Electromagnetic form factor of the pion in the field-theory-inspired approach

N. Achasov, A. Kozhevnikov, 2012 .

mixing as a threshold phenomenon

N. Achasov, G. Shestakov, S. A. Devyanin, 1979 .

X(3872), IG(JPC) = 0+(1++), as the χc1(2P) charmonium

E. Rogozina, N. Achasov, 2015, 1501.03583.

Towards nature of the X(3872) resonance

E. Rogozina, N. Achasov, 2015, 1510.07251.

Light scalar mesons and two-kaon correlation functions

N. Achasov, A. Kiselev, 2017, 1711.08777.

Exotic states X±(1600, IG (JPC)=2+ (2++)) in photoproduction reactions

N. Achasov, G. Shestakov, N. Achasov, 2000 .

η(1475) and f1(1420) resonances in J/ψ→γ(ρρ,γρ0,γϕ) decays and γγ⁎ collisions

N. Achasov, G. Shestakov, 2012 .

Dynamics of f0(980)-resonance production in the reaction γγ → π+π−

N. Achasov, G. Shestakov, G. N. Shestakov, 2006 .

Branching ratios for the decays of Ψ(3770) and ϒ(10580) mesons to a pair of light hadrons

N. Achasov, A. Kozhevnikov, N. Achasov, 2006 .

Effect of the a1(1260) resonance on the ρ → 4π and ω,ø → 5 π decay widths

N. Achasov, A. Kozhevnikov, N. Achasov, 2006 .

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

J. Bennett, E. Kozyrev, N. Achasov, 2020, 2009.04191.

New analysis of the KLOE data on theφ→ηπ0γdecay

N. Achasov, A. Kiselev, 2002, hep-ph/0212153.

Semileptonic decays D→ηπe+νe in the a0(980) region

N. Achasov, G. Shestakov, A. Kiselev, 2021, 2106.10670.

N ov 2 01 8 a 0 ( 980 ) physics in semileptonic D 0 and D + decays

N. Achasov, A. Kiselev, 2018 .

a0(980) physics in semileptonic D0 and D+ decays

N. Achasov, A. Kiselev, 2018, Physical Review D.

Some problems in heavy-quarkonium decays

N. Achasov, G. Shestakov, A. Kiselev, 2015 .

Once more on search forq2q−2-states in photon-photon collisions

N. Achasov, G. Shestakov, S. A. Devyanin, 1985 .

Strong isospin symmetry breaking in light scalar meson production

N. Achasov, G. Shestakov, N. Achasov, 2019, Physics-Uspekhi.

Application of the hidden local symmetry effective chiral Lagrangian to evaluation of the ω(782), ϕ(1020) → 5π decay widths

N. Achasov, A. Kozhevnikov, N. Achasov, 2005 .

a00(980)-ƒ0(980) mixing and spin asymmetry in the π−p→ηπ 0n reaction

N. Achasov, G. Shestakov, G. N. Shestakov, 2004 .

Manifestation of the $a^0_0(980)-f_0(980)$ mixing in the reaction $\pi^-p\to\eta\pi^0n$ on a polarized target

N. Achasov, G. Shestakov, G. N. Shestakov, 2004, hep-ph/0405129.

Propagators of light scalar mesons

N. Achasov, A. Kiselev, 2004, hep-ph/0405128.

Proposed search for a(0)(0)(980)-f(0)(980) mixing in polarization phenomena.

N. Achasov, G. Shestakov, G. N. Shestakov, 2003, Physical review letters.

The Decays omega(782), phi(1020) ---> 5 pi in the hidden local symmetry approach

N. Achasov, A. Kozhevnikov, 2003, hep-ph/0306177.

Investigation of the f2(1270) and a2(1320) resonances in γ*(Q2)γ collisions

N. Achasov, G. Shestakov, A. Kiselev, 2015 .

Summary of the search for four-quark states in γγ collisions

N. Achasov, G. Shestakov, 1991 .

What can be discovered in the γγ→ωω reaction

N. Achasov, G. Shestakov, V. A. Karnakov, 1987 .

Proposal to look for the anomalous isotopic symmetry breaking in central diffractive production of the f1(1285) and a00(980) resonances at the LHC

N. Achasov, G. Shestakov, G. N. Shestakov, 2018, 1801.09370.

Light scalars in semileptonic decays of heavy quarkonia

N. Achasov, A. Kiselev, 2012, 1206.5500.

Contribution to muong−2fromπ0γandηγintermediate states in the vacuum polarization

N. Achasov, A. Kiselev, 2002, hep-ph/0202047.

The ρ±−ρ0 mass splitting problem

M. Achasov, N. Achasov, 1999, hep-ph/9901211.

Shape of thef0(980)inγγ→π+π−

N. Achasov, G. Shestakov, 2005 .

Generalized hidden local symmetry model confronts the decay τ− → π+π−π−ντ

N. Achasov, A. Kozhevnikov, 2010 .

Hidden local symmetry and the reaction e+e- → $ \pi^{+}_{}$$ \pi^{-}_{}$$ \pi^{+}_{}$$ \pi^{-}_{}$ at energies $ \sqrt{{s}}$ ⩽ 1 GeV

N. Achasov, A. Kozhevnikov, 2008 .

Reaction e+e− → π+π−π+π− at energies of √s ≤ 1 GeV

N. Achasov, A. Kozhevnikov, 2008 .

Reaction e^+e^-\to\pi^+\pi^-\pi^+\pi^- at energies \sqrt{s}\leq 1 GeV

N. Achasov, A. A. Kozhevnikov, 2008, 0803.2972.

Transition form factors $\gamma^*\to \gamma f_2(1270)$ and $\gamma^*\to \gamma a_2(1320)$ in the $e^+e^-$ collisions

N. Achasov, A. Kiselev, 2015, 1509.04181.

Electroweak production of $\chi_{Q1}$ states in $e^+e^-$ collisions: a brief review

N. Achasov, G. Shestakov, A. Kiselev, 2022, 2208.00793.

Comments on new results in the physics of γγ collisions

N. Achasov, G. Shestakov, G. N. Shestakov, 1988 .

Two photon production of four-quark states

N. Achasov, G. Shestakov, S. A. Devyanin, 1982 .

f0(980) and a0(980) resonances near the thresholds of the γγ → K+K− and γγ → K0K̇0 reactions

N. Achasov, G. Shestakov, N. Achasov, 2012 .

η(1295)→3π decays

N. Achasov, G. Shestakov, 2021, Physical Review D.

Analysis of the nature of theφ→γπηandφ→γπ0π0decays

N. Achasov, V. Gubin, 2001 .

Nature of the a 0 (980) meson in the light of photon-photon collisions

N. Achasov, G. Shestakov, G. N. Shestakov, 2010, 1003.5054.

To search for four-quark states in γγ-collisions

N. Achasov, G. Shestakov, S. A. Devyanin, 1982 .

Direct decays of heavy quarkonia

N. Achasov, A. Kozhevnikov, 1991 .

Situation around thea0(980) meson after the experimentγγ→a0→π0η

N. Achasov, G. Shestakov, G. N. Shestakov, 1988 .

Triangle singularities in the Tcc+ N. Achasov, G. Shestakov, 2022, Physical Review D.

Exotic mesons 1990

N. Achasov, 1991 .

Light scalar mesons and two-kaon correlation functions

N. Achasov, A. Kiselev, 2017, 1711.08777.

Lightest scalar resonances and the dynamics of the γγ → ππ reactions

N. Achasov, G. Shestakov, 2008, 0810.2201.

Light scalar mesons in experimental data on the decay ϕ → π0π0γ and ππ scattering

N. Achasov, A. Kiselev, N. Achasov, 2007 .

Isospin breaking decay $\eta(1405) \to f_0(980)\pi^0 \to 3\pi$

N. Achasov, G. Shestakov, A. Kozhevnikov, 2015, 1504.02844.

Testing chiral models of vector mesons in multipion decays of ρ(770) and ω(782)

N. Achasov, A. Kozhevnikov, 2000 .

Many pion decays of ρ(770) and ω(782) mesons in chiral theory

N. Achasov, A. Kozhevnikov, 2000, hep-ph/0003094.

The decay ?(782)?5 p in chiral theory.

N. Achasov, A. Kozhevnikov, 2000, hep-ph/0003014.

Semileptonic decays D→π+π−e+νe and Ds→π+π−e+νe as the probe of constituent quark-antiquark pairs in the light scalar mesons

N. Achasov, G. Shestakov, A. Kiselev, 2020, Physical Review D.

Study of Light Scalars in Photon-Photon Collisions, the learned Lessons

N. Achasov, G. Shestakov, G. N. Shestakov, 2012 .

Theory of Scalars

N. Achasov, G. Shestakov, A. Kiselev, 2008, 0806.0521.

The $$Z \to c\bar c \to \gamma \gamma *$$, $$Z \to b\bar b \to \gamma \gamma *$$ triangle diagrams and the Z → γψ, Z → γγ decays

N. Achasov, 2012 .

Треугольные диаграммы $Z\to c\bar c\to\gamma\gamma^{\ast}$, $Z\to b\bar b\to\gamma\gamma^{\ast}$ и распады $Z\to\gamma\psi$, $Z\to\gamma\Upsilon$@@@The $Z\to c\bar c\to\gamma\gamma^*$, $Z\to b\bar b\to\gamma\gamma^*$ triangle diagrams and the $Z\to\gamma\psi$, $Z\to\gamma\Upsilon$ decays

N. Achasov, Николай Николаевич Ачасов, 2012 .

The Z → c$$ \bar c $$ → γγ*, Z → b$$ \bar b $$ → γγ* triangle diagrams and the Z → γψ, Z → γϒ decays

N. Achasov, 2011 .

Once more about the axial anomaly pole

N. Achasov, 1992 .

Mystery of J/Ψ→γ+ϱϱ, J/Ψ→γ+ωω and J/Ψ→γ+γϱ0 decays

N. Achasov, G. Shestakov, 1985 .

Effective Lagrangians and IG(JPC)=1−(1−+) exotic resonance state in the VP and the PP channel

N. Achasov, G. Shestakov, 2002 .

One‐Pion Exchange Model in the Vector Theory for the Reaction πN → πN. The Present Status. Connection with the Absorption

N. Achasov, G. Shestakov, 1974 .

The problem of scalar mesons

N. Achasov, G. Shestakov, S. A. Devyanin, 1984 .

Electroweak production of $\chi_{Q1}$ states in $e^+e^-$ collisions: A brief review

N. Achasov, G. Shestakov, A. Kiselev, 2022, 2208.00793.

Light scalar mesons in photon–photon collisions

N. Achasov, G. Shestakov, G. N. Shestakov, 2009, 0905.2017.

Lightest scalar and tensor resonances in {gamma}{gamma}{yields}{pi}{pi} after the Belle experiment

N. Achasov, G. Shestakov, 2007, 0712.0885.

How learn the branching ratio $$X(3872) \to D*^0 \bar D^0 + c.c.$$

E. Rogozina, N. Achasov, 2013, 1310.1436.

Vector meson dominance model in γ+γ*(Q2)→f(1270,2+)→ππ

N. Achasov, V. A. Karnakov, 1986 .

Phase of φω interference due to unitarity corrections to the amplitude of φω mixing

N. Achasov, A. Kozhevnikov, 2000 .

Decay $X(3872)\to\pi^0\pi^+\pi^-$ and $S$-wave $D^0\bar D^0 \to\pi^+\pi^-$ scattering length

N. Achasov, G. Shestakov, 2019, 1904.02352.

Decay X(3872)→π0π+π− and S -wave D0D¯0→π+π− scattering length

N. Achasov, G. Shestakov, 2019, Physical Review D.

Once more about the KK molecule approach to the light scalars

N. Achasov, A. Kiselev, 2006, 0806.2993.

Decays of φ-MESON Suppressed by Ozi and G-Parity Role of Mixing and of Direct Transitions

N. Achasov, A. Kozhevnikov, 1992 .

Line shape of $\psi(3770)$ in $e^+e^-\to D\bar D$

N. Achasov, G. Shestakov, 2012, 1208.4240.

The interference in the reaction $e^+e^-\to\gamma\pi^+\pi^-$ and the search for the decay $\phi\to\gamma f_0\to\gamma\pi^+\pi^-$

Novosibirsk, Budker Institute of Nuclear Physics, N. Achasov, 1996, hep-ph/9610282.

Final-state interaction phase difference in J/???? and ?? decays

N. Achasov, V. Gubin, 1999, hep-ph/9912393.

Isoscalar resonances withJPC=1−−ine+e−annihilation

N. Achasov, A. Kozhevnikov, 1997, hep-ph/9703397.

Interference phenomena in the decay $D^+_s\to\eta\pi^0\pi^+$ induced by the $a^0_0(980)-f_0(980)$ mixing

N. Achasov, G. Shestakov, 2017, 1704.01763.

Measuring the finite width and unitarity corrections to the phi omega mixing amplitude

N. Achasov, A. Kozhevnikov, 1999, hep-ph/9906520.

Signature of the triangle singularity in the reaction [ital e][sup +][ital e][sup [minus]][r arrow][pi][sup +][pi][sup [minus]][pi][sup 0]

N. Achasov, A. Kozhevnikov, 1994 .

Effects to the Mixing and the Study of the Dynamics of the Vector Meson Production

N. Achasov, G. Shestakov, 1978 .

Comparative study of the scalar- and tensor-meson production in the reaction γγ* (Q2)→ ηπ0

N. Achasov, G. Shestakov, A. Kiselev, 2015, 1504.07346.

Production of scalar {ital K{bar K}} molecules in {phi} radiative decays

N. Achasov, V. Shevchenko, V. Gubin, 1997 .

Inadequacy of the narrow resonance approximation in Φ → γa0 and Φ → γα0 decays

N. Achasov, V. Gubin, 1995 .

Phenomenological description of the π−π+

N. Achasov, G. Shestakov, 2023, Physical Review D.

Phenomenological description of the $\pi^-\pi^+$ $S$-waves in $D^+\to\pi^-\pi^+\pi^+$ and $D^+_s\to\pi^-\pi^+\pi^+$ decays: The problem of phases

N. Achasov, G. Shestakov, 2022, 2211.05526.

To Learn Light Scalars from Semileptonic Decays of Heavy Quarkonia

N. Achasov, A. Kiselev, 2014 .

Light scalars, analytical ππ scattering amplitude, the Roy equations, and chiral expansion

N. Achasov, A. Kiselev, 2012 .

Mechanism of the production of the a0(980) resonance in the γγ → π0η reaction

N. Achasov, G. Shestakov, G. N. Shestakov, 2010 .

Nature of light scalars through photon-photon collisions

N. Achasov, G. Shestakov, G. N. Shestakov, 2009, 0912.1197.

Once more on mixing of the a_0(980) and f_0(980) mesons

N. Achasov, A. Kiselev, 2002, hep-ph/0203042.

On the nature of the scalar a0(980) and f0(980) mesons

N. Achasov, 1999, hep-ph/9910540.

Production of Scalar $K\bar{K}$ Molecules in ϕ Radiative Decays

N. Achasov, V. Shevchenko, V. Gubin, 1997 .

Is there a “signature” of the δ(980)-meson four-quark nature?

N. Achasov, G. Shestakov, S. A. Devyanin, 1980 .

FROM THE CURRENT LITERATURE: On the nature of the a0(980) and f0(980) scalar mesons

N. Achasov, 1998 .

On nature of scalar a 0(980) and f 0(980)-mesons

N. Achasov, 1998, hep-ph/9803292.

Interference in the reaction e+e-??p+p- and the final state interaction

N. Achasov, V. Gubin, 1998 .

Does the ϱ0-ω mixing make possible an anomalous violation of the isotopic symmetry in the reactions πN → ω (N, Δ)?

N. Achasov, G. Shestakov, 1972 .

On the nature ofC(1480) resonance

N. Achasov, A. Kozhevnikov, 1990 .

Is the resonance C(1480) in the ϕπ0 mass spectrum a new meson

N. Achasov, A. Kozhevnikov, 1988 .

Isotopic Symmetry Breaking in the η(1405) → f0(980)π0 → π+π–π0. Decay through a $$K\bar K$$KK¯ Loop Diagram and the Role of Anomalous Landau Thresholds

N. Achasov, G. Shestakov, 2018, 1804.10749.

Where is the decay ϱ' (1600) → ωπ0?

N. Achasov, A. Kozhevnikov, 1988 .

Strong isospin breaking at production of light scalars

N. Achasov, G. Shestakov, 2017, 1701.02122.

Mechanisms of the isospin-breaking decay $f_1(1285)\to f_0(980)\pi^0\to\pi^+\pi^-\pi^0$

N. Achasov, G. Shestakov, A. Kozhevnikov, 2016, 1604.00177.

Did the VES (IHEP) group observe the reactions π−N→π−ηN and π−N→π−η′N?

N. Achasov, G. Shestakov, V. Gubin, 1994 .

Electromagnetic form factors in the J / ψ mass region: The case in favor of additional resonances

N. Achasov, A. Kozhevnikov, 1998, hep-ph/9801308.

New information on the strong isospin symmetry breaking in the reactions of the a00(980) and f0(980) resonance production

N. Achasov, G. Shestakov, 2019, EPJ Web of Conferences.

Comparative study of the production of scalar and tensor mesons ine+e−collisions

A. I. Goncharenko, E. Rogozina, N. Achasov, 2013, 1307.1750.

Search for the scalar a0 and f0 mesons in the reactions e+ e- ---> gamma pi0 pi0 (eta)

N. Achasov, V. Gubin, N. N. Achasov, 1997 .

Rho primes in analyzing e+e- annihilation, MARK III, LASS and ARGUS data

N. Achasov, A. Kozhevnikov, 1996, hep-ph/9609216.

Can δ (980, 0+) be a Broad qqq̄q̄ State?

N. Achasov, G. Shestakov, S. A. Devyanin, 1983 .

An ambiguity in interpretation of data on the S∗ (980)-resonance for the case of strong coupling of S∗(980) with the KK-crmchannel

N. Achasov, G. Shestakov, S. A. Devyanin, 1981 .

ON THE REACTION pi- p (polarized) ---> omega eta ON POLARIZED NUCLEON AT HIGH-ENERGIES

N. Achasov, G. Shestakov, A. Kozhevnikov, 1984 .

Mechanisms of the Reaction $\pi^-p\to a^0_0(980)n\to\pi^0\eta n$ at High Energies

N. Achasov, G. Shestakov, 1996, hep-ph/9610409.

Erratum: Properties of the light scalar mesons face the experimental data on the {phi}{yields}{pi}{sup 0}{pi}{sup 0}{gamma} decay and the {pi}{pi} scattering [Phys. Rev. D 73, 054029 (2006)]

N. Achasov, A. Kiselev, 2006 .

Isobar electroproduction as a background from interaction of beams with residual gas at φ-factories

Novosibirsk, M. Achasov, V. Golubev, 1996, hep-ph/9612404.

On the possibility of observing a00(980)-ƒ0(980) mixing in the reaction π−p → ηπ0n on a polarized target

N. Achasov, G. Shestakov, 2005 .

Search fora0(980)andf0(980)mesons inφ→γKK¯

N. Achasov, V. Gubin, 2001 .

On the nature of the a 0 (980) and f 0 (980) scalar mesons

N. Achasov, 1998 .

Interference in the reactione+e−→γπ+π−and the search for the decayφ→γf0→γπ+π−

N. Achasov, E. Solodov, V. Gubin, 1997 .

a Fresh Look at ϕ - ω Mixing

V. Ivanchenko, M. Dubrovin, N. Achasov, 1992 .

Quantum field theory and the new phase of the study of hadron production mechanisms caused by high experimental accuracy

N. Achasov, G. Shestakov, A. Kiselev, 2013 .

Lightest scalar in the SU(L)2 x SU(R)2 linear sigma model.

N. Achasov, G. Shestakov, 2007, Physical review letters.

Lightest scalar in the SUL(2) X SUR(2) linear σ-model

N. Achasov, G. Shestakov, 2007 .

ππ scattering S wave from the data on the reaction π − p → π 0 π 0 n

N. Achasov, G. Shestakov, 2003 .

New explanation of the GAMS results on f 0 (980) production in the reaction π - p --> π 0 π 0 n

N. Achasov, G. Shestakov, 1999 .

New analysis of the KLOE data on theφ→ηπ0γdecay

N. Achasov, A. Kiselev, 2002, hep-ph/0212153.

The analytical $\pi\pi$ scattering amplitude and the light scalars

N. Achasov, A. Kiselev, 2010, 1011.4446.

REACTIONS γγ→K+K− AND $\gamma \gamma \to K^0 \bar K^0 $ NEAR THRESHOLD

N. Achasov, G. Shestakov, 1994 .

S wave of pion-pion scattering from data on the reaction π−p → π0π0n

N. Achasov, G. Shestakov, 2004 .

Search for $a_0(980)$ and $f_0(980)$ mesons in $\phi\to\gamma K\bar K$

N. Achasov, V. Gubin, 2001, hep-ph/0106321.

3 1 M ay 2 02 2 Triangle singularities in the T

N. Achasov, G. Shestakov, 2022 .

1 M ar 2 02 2 Triangle Singularities in the T

N. Achasov, G. Shestakov, 2022 .

Two-photon formation of the scalar a0(980) meson at DAΦNE

N. Achasov, G. Shestakov, 1994 .

The evaluation of the branching ratios of the decays φ(1020)→2π+2π−π0, π+π−3π0

N. Achasov, A. Kozhevnikov, 2004 .

Production of the f0(980) resonance in the reaction π−p → π0π0n

N. Achasov, G. Shestakov, G. N. Shestakov, 2003 .

Mechanism for the f0(980) production in the reaction π−p→π0π0n

N. Achasov, G. Shestakov, G. N. Shestakov, 2001, hep-ph/0107243.

Electroweak production of χQ1 states in

N. Achasov, G. Shestakov, A. Kiselev, 2022, Physical Review D.

ABOUT THE LATEST RESULTS ON THE VECTOR MESON PAIR PRODUCTION IN γγ-COLLISIONS

N. Achasov, G. Shestakov, V. A. Karnakov, 1990 .

Multipion decays of omega(782) and phi(1020)

N. Achasov, A. Kozhevnikov, 2006, hep-ph/0604099.

Search for a 0 ( 980 ) and f 0 ( 980 ) mesons in φ → γKK̄

N. Achasov, V. Gubin, 2001 .

Electronic width of the ψ(3770) resonance interfering with the background

N. Achasov, G. Shestakov, 2021, 2102.03738.

eb 2 00 2 Contribution to muon g-2 from the π 0 γ and ηγ intermediate states in the vacuum polarization

N. Achasov, A. Kiselev, 2008 .

Electromagnetic form factor of the pion in the field-theory-inspired approach

N. Achasov, A. Kozhevnikov, 2011, 1104.4225.

Ju n 20 03 The decays ω ( 782 ) , φ ( 1020 ) → 5 π in the hidden local symmetry approach

N. Achasov, A. Kozhevnikov, 2003 .

Coupled-channel influence on the a0(1700/1

N. Achasov, G. N. Shestakov, 2023, Physical Review D.

Coupled-channel influence on the $a_0(1700/1800)$ line shape

N. Achasov, G. N. Shestakov, 2023, 2306.04478.

Shape of the f{sub 0}(980) in {gamma}{gamma}{yields}{pi}{sup +}{pi}{sup -}

N. Achasov, G. N. Shestakov, 2005, hep-ph/0506046.

Radiative decays of φ meson and nature of light scalar resonances

N. Achasov, 2002, hep-ph/0201299.

Analysis of the nature of theφ→γπηandφ→γπ0π0decays

N. Achasov, V. Gubin, 2001 .

FROM THE CURRENT LITERATURE: On the nature of the a0(980) and f0(980) scalar mesons

N. Achasov, 1998 .

Interference in the reactione+e−→γπ+π−and the search for the decayφ→γf0→γπ+π−

Novosibirsk, Budker Institute of Nuclear Physics, N. Achasov, 1996, hep-ph/9610282.