Evgeny Ivanov
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Research Interests
Evgeny Ivanov has a total of 44 co-authors. Here are the top co-authors by number of shared publications:
- Ioseph Lvovich Buchbinder
Joint Institute for Nuclear Research
44 shared publications - Sergey Fedoruk
Joint Institute for Nuclear Research
32 shared publications - Stepan Sidorov
JINR
29 shared publications - Olaf Lechtenfeld
Leibniz Universität Hannover
25 shared publications - Nikita Zaigraev
JINR
19 shared publications - Boris M. Zupnik
Joint Institute for Nuclear Research
17 shared publications
Latest Publications
- Open Access
- 28 September 2026
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2026 (9) , 270
Linearized $ \mathcal{N} $ = 2 conformal supergravity in the harmonic approachA bstract: Using the harmonic superspace approach, we construct the superconformal harmonic action for $$ \mathcal{N} $$ = 2 Weyl supermultiplet. The fundamental objects of the theory are unconstrained analytic potentials $$ {h}^{++\alpha \dot{\alpha}} $$ , h ++ α + , $$ {h}^{++\dot{\alpha}+} $$ , h (+4) , which distinguishes our construction among the previously known ones. An important role is played by the “half-analyticity” conditions introduced in arXiv:2407.08524. The structure of the harmonic linearized $$ \mathcal{N} $$ = 2 Weyl action to large extent repeats the structure of the $$ \mathcal{N} $$ = 2 Maxwell action, which suggests a conjecture on the possible structure of the complete nonlinear $$ \mathcal{N} $$ = 2 Weyl theory action in the harmonic superspace. We provide a detailed study of the rigid superconformal properties of the proposed action and prove its invariance in both harmonic and chiral superspaces. First steps are also undertaken towards constructing the nonlinear $$ \mathcal{N} $$ = 2 Weyl action, based on an analogy with $$ \mathcal{N} $$ = 2 Maxwell action just mentioned and a generalization of the concept of half-analyticity to curved harmonic superspace.- 28 September 2026
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2026 (9) , 270
Open AccessLinearized $ \mathcal{N} $ = 2 conformal supergravity in the harmonic approachA bstract: Using the harmonic superspace approach, we construct the superconformal harmonic action for $$ \mathcal{N} $$ = 2 Weyl supermultiplet. The fundamental objects of the theory are unconstrained analytic potentials $$ {h}^{++\alpha \dot{\alpha}} $$ , h ++ α + , $$ {h}^{++\dot{\alpha}+} $$ , h (+4) , which distinguishes our construction among the previously known ones. An important role is played by the “half-analyticity” conditions introduced in arXiv:2407.08524. The structure of the harmonic linearized $$ \mathcal{N} $$ = 2 Weyl action to large extent repeats the structure of the $$ \mathcal{N} $$ = 2 Maxwell action, which suggests a conjecture on the possible structure of the complete nonlinear $$ \mathcal{N} $$ = 2 Weyl theory action in the harmonic superspace. We provide a detailed study of the rigid superconformal properties of the proposed action and prove its invariance in both harmonic and chiral superspaces. First steps are also undertaken towards constructing the nonlinear $$ \mathcal{N} $$ = 2 Weyl action, based on an analogy with $$ \mathcal{N} $$ = 2 Maxwell action just mentioned and a generalization of the concept of half-analyticity to curved harmonic superspace. - Open Access
- 2 September 2026
- Published by Elsevier in Nuclear Physics B
- Vol. 1031
N=4 supersymmetric multiparticle systems based on indecomposable multiplets
- 2 September 2026
- Published by Elsevier in Nuclear Physics B
- Vol. 1031
Open AccessN=4 supersymmetric multiparticle systems based on indecomposable multiplets
- 2 July 2026
- Published by Springer Nature
- p. 233-258
Towards $\mathcal {N}=2$ Higher-Spin Supergravity- Open Access
- 23 June 2026
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2026 (6)
One-loop finiteness in higher-derivative 6D, 𝒩 = (1, 0) super Yang-Mills — hypermultiplet system
A bstract: We employ the harmonic superspace methods to study a six-dimensional 𝒩 = (1 , 0) supersymmetric gauge theory with higher derivatives coupled to a hypermultiplet in the adjoint representation. By introducing a certain non-minimal interaction between the gauge multiplet and the hypermultiplet, we demonstrate that the one-loop divergences in gauge superfield sector, which are present in the conventional formulation, are canceled. The resulting theory is off-shell one-loop finite in this sector, while preserving the gauge invariance and 𝒩 = (1 , 0) supersymmetry. The cancelation mechanism is explicitly verified using both the background field method and the supergraph techniques. Thus, we present an example of the higher-derivative supersymmetric gauge theory in six dimensions which is finite in the vector multiplet sector.
- 23 June 2026
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2026 (6)
Open AccessOne-loop finiteness in higher-derivative 6D, 𝒩 = (1, 0) super Yang-Mills — hypermultiplet system
A bstract: We employ the harmonic superspace methods to study a six-dimensional 𝒩 = (1 , 0) supersymmetric gauge theory with higher derivatives coupled to a hypermultiplet in the adjoint representation. By introducing a certain non-minimal interaction between the gauge multiplet and the hypermultiplet, we demonstrate that the one-loop divergences in gauge superfield sector, which are present in the conventional formulation, are canceled. The resulting theory is off-shell one-loop finite in this sector, while preserving the gauge invariance and 𝒩 = (1 , 0) supersymmetry. The cancelation mechanism is explicitly verified using both the background field method and the supergraph techniques. Thus, we present an example of the higher-derivative supersymmetric gauge theory in six dimensions which is finite in the vector multiplet sector.
- Open Access
- 1 April 2026
- Published by Joint Institute for Nuclear Research in Natural Science Review
- Vol. 3 (7) , 200707
Supersymmetry at BLTP: Recent progress
Ten years ago, in a paper [1], a brief historical survey of the research activity in the Sector “Supersymmetry” at the Bogoliubov Laboratory of Theoretical Physics (BLTP) for more than 50 years of its existence has been given. Here, in commemoration of the 70th jubilee of the Joint Institute for Nuclear Research, we review some recent sound advancements in this area. Specifically, we consider the issues of constructing the superfield quantum effective actions in 6D, N = (1, 0) supersymmetry and off-shell unconstrained superfield formulations of N = 2 higher spins. In both cases, the harmonic superspace approach plays the decisive role.
- 1 April 2026
- Published by Joint Institute for Nuclear Research in Natural Science Review
- Vol. 3 (7) , 200707
Open AccessSupersymmetry at BLTP: Recent progress
Ten years ago, in a paper [1], a brief historical survey of the research activity in the Sector “Supersymmetry” at the Bogoliubov Laboratory of Theoretical Physics (BLTP) for more than 50 years of its existence has been given. Here, in commemoration of the 70th jubilee of the Joint Institute for Nuclear Research, we review some recent sound advancements in this area. Specifically, we consider the issues of constructing the superfield quantum effective actions in 6D, N = (1, 0) supersymmetry and off-shell unconstrained superfield formulations of N = 2 higher spins. In both cases, the harmonic superspace approach plays the decisive role.
- Open Access
- 3 March 2026
- Published by American Physical Society (APS) in Physical Review D
- Vol. 113 (6)
N = 8 supersymmetric mechanics with spin variables from indecomposable multiplets
We define two new indecomposable (not fully reducible) N = 8 , d = 1 off-shell multiplets and consider the corresponding models of N = 8 supersymmetric mechanics with spin variables. Each multiplet is described off shell by a scalar superfield which is a nonlinear deformation of the standard scalar superfield X carrying the d = 1 multiplet ( 1 , 8 , 7 ). Deformed systems involve, as invariant subsets, two different off-shell versions of the irreducible multiplet ( 8 , 8 , 0 ). For both systems we present the manifestly N = 8 supersymmetric superfield constraints, as well as the component off- and on-shell invariant actions, which for one version exactly match those given in . The two models differ off shell, but prove to be equivalent to each other on shell, with the spin variables sitting in the adjoint representation of the maximal R -symmetry group SO ( 8 ) .
- 3 March 2026
- Published by American Physical Society (APS) in Physical Review D
- Vol. 113 (6)
Open AccessN = 8 supersymmetric mechanics with spin variables from indecomposable multiplets
We define two new indecomposable (not fully reducible) N = 8 , d = 1 off-shell multiplets and consider the corresponding models of N = 8 supersymmetric mechanics with spin variables. Each multiplet is described off shell by a scalar superfield which is a nonlinear deformation of the standard scalar superfield X carrying the d = 1 multiplet ( 1 , 8 , 7 ). Deformed systems involve, as invariant subsets, two different off-shell versions of the irreducible multiplet ( 8 , 8 , 0 ). For both systems we present the manifestly N = 8 supersymmetric superfield constraints, as well as the component off- and on-shell invariant actions, which for one version exactly match those given in . The two models differ off shell, but prove to be equivalent to each other on shell, with the spin variables sitting in the adjoint representation of the maximal R -symmetry group SO ( 8 ) .
- Open Access
${\cal N}=2$ Higher Spins by Harmonic Superspace Methods
Harmonic ${\cal N}=2$ superspace was discovered in 1984 as the powerful tool of the geometric superfield off-shell description of ${\cal N}=2, 4D$ supersymmetric field theories with the maximal spins 1, 2, and 1/2 (${\cal N}=2$ Yang-Mills theories, supergravity and matter hypermultiplets). My talk is a brief account of the basic achievements of the harmonic methods, including the newest applications in ${\cal N}=2$ theories of higher spins.Open Access${\cal N}=2$ Higher Spins by Harmonic Superspace Methods
Harmonic ${\cal N}=2$ superspace was discovered in 1984 as the powerful tool of the geometric superfield off-shell description of ${\cal N}=2, 4D$ supersymmetric field theories with the maximal spins 1, 2, and 1/2 (${\cal N}=2$ Yang-Mills theories, supergravity and matter hypermultiplets). My talk is a brief account of the basic achievements of the harmonic methods, including the newest applications in ${\cal N}=2$ theories of higher spins. - Open AccessLinearized $\mathcal{N}=2$ conformal supergravity in the harmonic approachUsing the harmonic superspace approach we construct the superconformal harmonic action for $\mathcal{N}=2$ Weyl supermultiplet. The fundamental objects of the theory are unconstrained analytic potentials $h^{++α\dotα}, h^{++α+}, h^{++\dotα+}, h^{(+4)}$, which distinguishes our construction among the previously known ones. An important role is played by the ``half-analyticity'' conditions introduced in arxiv:2407.08524 [hep-th]. The structure of the harmonic linearized $\mathcal{N}=2$ Weyl action to large extent repeats the structure of the $\mathcal{N}=2$ Maxwell action, which suggests a conjecture on the possible structure of the complete nonlinear $\mathcal{N}=2$ Weyl theory action in the harmonic superspace. We also provide a detailed study of the rigid superconformal properties of the proposed action and prove its invariance in both harmonic and chiral superspaces.Open AccessLinearized $\mathcal{N}=2$ conformal supergravity in the harmonic approachUsing the harmonic superspace approach we construct the superconformal harmonic action for $\mathcal{N}=2$ Weyl supermultiplet. The fundamental objects of the theory are unconstrained analytic potentials $h^{++α\dotα}, h^{++α+}, h^{++\dotα+}, h^{(+4)}$, which distinguishes our construction among the previously known ones. An important role is played by the ``half-analyticity'' conditions introduced in arxiv:2407.08524 [hep-th]. The structure of the harmonic linearized $\mathcal{N}=2$ Weyl action to large extent repeats the structure of the $\mathcal{N}=2$ Maxwell action, which suggests a conjecture on the possible structure of the complete nonlinear $\mathcal{N}=2$ Weyl theory action in the harmonic superspace. We also provide a detailed study of the rigid superconformal properties of the proposed action and prove its invariance in both harmonic and chiral superspaces.
- Open Access
- 24 October 2025
- Published by Elsevier in Physics Letters B
- Vol. 871
N = 2 AdS hypermultiplets in harmonic superspace
- 24 October 2025
- Published by Elsevier in Physics Letters B
- Vol. 871
Open AccessN = 2 AdS hypermultiplets in harmonic superspace
- Open Access
- 18 June 2025
- Published by American Physical Society (APS) in Physical Review D
- Vol. 111 (12)
Structure of divergences in the higher-derivative supersymmetric gauge theoryUsing the harmonic superspace approach, we perform a comprehensive study of the structure of divergences in the higher-derivative 6 D , N = ( 1 , 0 ) supersymmetric Yang-Mills theory coupled to the hypermultiplet in the adjoint representation. The effective action is constructed in the framework of the superfield background field method with the help of the N = ( 1 , 0 ) supersymmetric higher-derivative regularization scheme which preserves all symmetries of the theory. The one-loop divergences are calculated in a manifestly gauge invariant and 6 D , N = ( 1 , 0 ) supersymmetric form, hopefully admitting a generalization to higher loops. The β function in the one-loop approximation is found and analyzed. In particular, it is shown that the one-loop β function for an arbitrary regulator function is specified by integrals of double total derivatives in momentum space, like it happens in 4 D , N = 1 superfield gauge theories. This points to the potential possibility to derive the Novikov-Shifman-Vainshtein-Zakharov-like exact β function in the considered theory. Published by the American Physical Society 2025
- 18 June 2025
- Published by American Physical Society (APS) in Physical Review D
- Vol. 111 (12)
Open AccessStructure of divergences in the higher-derivative supersymmetric gauge theoryUsing the harmonic superspace approach, we perform a comprehensive study of the structure of divergences in the higher-derivative 6 D , N = ( 1 , 0 ) supersymmetric Yang-Mills theory coupled to the hypermultiplet in the adjoint representation. The effective action is constructed in the framework of the superfield background field method with the help of the N = ( 1 , 0 ) supersymmetric higher-derivative regularization scheme which preserves all symmetries of the theory. The one-loop divergences are calculated in a manifestly gauge invariant and 6 D , N = ( 1 , 0 ) supersymmetric form, hopefully admitting a generalization to higher loops. The β function in the one-loop approximation is found and analyzed. In particular, it is shown that the one-loop β function for an arbitrary regulator function is specified by integrals of double total derivatives in momentum space, like it happens in 4 D , N = 1 superfield gauge theories. This points to the potential possibility to derive the Novikov-Shifman-Vainshtein-Zakharov-like exact β function in the considered theory. Published by the American Physical Society 2025