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Implication of the dark axion portal for the EDm of fermions and dark matter probing with NA64e, NA64μ, LDmX, m3, and BaBar

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Physical Review D 2022年第3期106卷 035018-035018页

作者： Alexey S. Zhevlakov Dmitry v. Kirpichnikov valery E. Lyubovitskij Bogoliubov Laboratory of Theoretical Physics JINR 141980 Dubna Russia Matrosov Institute for System Dynamics and Control Theory SB RAS 134 Lermontov Street 664033 Irkutsk Russia Institute for Nuclear Research of the Russian Academy of Sciences 117312 Moscow Russia Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 D-72076 Tübingen Germany Departamento de Física y Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla 110-V Valparaíso Chile Millennium Institute for Subatomic Physics at the High-Energy Frontier (SAPHIR) of ANID Fernández Concha 700 Santiago Chile Department of Physics Tomsk State University 634050 Tomsk Russia Tomsk Polytechnic University 634050 Tomsk Russia

The link between ordinary Standard model (Sm) photons and both dark photons and axion-like particles (ALPs) can be introduced through the dark axion portal coupling. Given the dark axion portal setup, in the present paper we refer to the dark photon as the mediator between Sm and dark matter (Dm) particles, implying that it decays predominantly into a pair of Dm fermions. Furthermore, we discuss in detail the implication of the dark axion portal scenario for the lepton (electron and muon) fixed-target experiments. In particular, for the specific fixed-target facility we study the missing-energy signatures of the dark photon production followed by its invisible decay into stable Dm particles. We investigate the potential to probe dark axion portal vertices with regarding signatures and derive the expected sensitivities of NA64e, NA64μ, LDmX and m3. moreover, we estimate the expected reach of NA64e from the projected statistics of the J/ψ vector meson invisible decays. We also recast the BABAR monophoton bounds for the specific dark axion portal scenario. In addition, we modify the dark axion portal setup by including in the model both the hadron- and lepton-specific ALP couplings. As a result, we obtain the bounds on the combination of fermion-specific couplings of ALP from the fixed-target experiments. We discuss the implication of the modified dark axion portal scenario for the electric dipole moments (EDms) of Sm fermions. In addition, we derive novel constraints on the combination of the CP-violating neutron-specific ALP couplings from the existing bounds on neutron EDms by taking into account the neutron anomalous magnetic moment.

关键词： Axions Hypothetical particle physics models Particle dark matter Hypothetical gauge bosons

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Lepton flavor violating dark photon

arXiv

引用

arXiv 2023年

作者： Zhevlakov, Alexey S. Kirpichnikov, Dmitry v. Lyubovitskij, valery E. Bogoliubov Laboratory of Theoretical Physics JINR Dubna141980 Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov str. 134 Irkutsk664033 Russia Institute for Nuclear Research of the Russian Academy of Sciences Moscow117312 Russia Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 TübingenD-72076 Germany Departamento de Física y Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla 110-V Valparaíso Chile of ANID Fernández Concha 700 Santiago Chile

We study the possible impact of dark photons on lepton flavor phenomenology. We derive the constraints on non-diagonal dark photon couplings with leptons by analyzing corresponding contributions to lepton anomalous magnetic moments, rare lepton decays and the prospects of fixed-target experiments aiming for search for light dark matter based on missing energy/momentum techniques. Copyright © 2023, The Authors. All rights reserved.

关键词： Photons

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Bounds on rare decays of η and η′ mesons from the neutron EDm

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Physical Review D 2019年第3期99卷 031703(R)-031703(R)页

作者： Alexey S. Zhevlakov.m.khail Gorchtein Astrid N. Hiller Blin Thomas Gutsche valery E. Lyubovitskij Department of Physics Tomsk State University 634050 Tomsk Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov str. 134 664033 Irkutsk Russia Institut für Kernphysik Johannes Gutenberg-Universität Mainz Germany and PRISMA Cluster of Excellence Johannes Gutenberg-Universität 55122 Mainz Germany Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 D-72076 Tübingen Germany Departamento de Física y Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla 110-V Valparaíso Chile Laboratory of Particle Physics Tomsk Polytechnic University 634050 Tomsk Russia

We provide model-independent bounds on the rates of rare decays η(η′)→ππ based on experimental limits on the neutron electric dipole moment (nEDm). Starting from phenomenological η(η′)ππ couplings, the nEDm arises at the two-loop level. The leading-order relativistic chiral perturbation theory calculation with the minimal photon coupling to charged pions and a proton inside the loops leads to a finite, counterterm-free result. This is an improv.m.nt upon previous estimates which used approximations in evaluating the two-loop contribution and were plagued by divergences. While constraints on the η(η′)ππ couplings in our phenomenological approach are somewhat milder than in the picture with the QCD θ term, our calculation means that whatever the origin of these couplings, the decays η(η′)→2π will remain unobservable in the near future.

关键词： Chiral perturbation theory Effective field theory Hadronic decays Rare decays Neutrons

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Test of the vector portal with dark fermions in the charge-exchange reactions in the NA64 experiment at CERN SPS

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Physical Review D 2024年第7期109卷 075021-075021页

作者： Sergei N. Gninenko Dmitry v. Kirpichnikov Sergey Kuleshov valery E. Lyubovitskij Alexey S. Zhevlakov Institute for Nuclear Research of the Russian Academy of Sciences 117312 Moscow Russia Millennium Institute for Subatomic Physics at the High-Energy Frontier (SAPHIR) of ANID Fernández Concha 700 Santiago Chile Center for Theoretical and Experimental Particle Physics Facultad de Ciencias Exactas Universidad Andres Bello Fernandez Concha 700 Santiago Chile Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 D-72076 Tübingen Germany Departamento de Física y Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla 110-V Valparaíso Chile Bogoliubov Laboratory of Theoretical Physics JINR 141980 Dubna Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov str. 134 664033 Irkutsk Russia

We consider an experiment to search for dark sector particles in invisible (or semi-invisible) decays of neutral mesons m0=π0, η, η′, ω, f2(1270), which produced the charge-exchange reactions π−+(A,Z)→m0+(A,Z−1);m0→ invisible of high-energy pions (or kaons) on a nuclei target in the NA64 experiment at the CERN SPS. This reaction chain would lead to a striking signature of the signal event—the complete disappearance of the beam energy in the setup [Phys. Rev. D 91, 015004 (2015)]. Using data obtained from the measurements at IHEP (Protvino) and Fermilab (Batavia) we show that the integral cross sections σ for the production of the m0 s slightly deviate from the phenomenological formula σ∼Z2/3, where Z is the nuclei charge. In particular, we present the formulas for the differential and integral cross sections that explicitly depend on the mandelstam and Z variables. Derived formulas are used to predict the m0 yield as a function of beam energy for several target nuclei, and to estimate the projection sensitivity for the proposed search in the dark vector portal model. Sensitivity to different decay modes of m0s is explored.

关键词： Particle dark matter Hypothetical gauge bosons

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Lepton phenomenology of Stueckelberg portal to dark sector

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Physical Review D 2022年第7期105卷 075004-075004页

作者： Aliaksei Kachanovich Sergey Kovalenko Serguei Kuleshov valery E. Lyubovitskij Alexey S. Zhevlakov Institute for Theoretical Particle Physics (TTP) Karlsruhe Institute of Technology (KIT) Wolfgang-Gaede-Straße 1 76131 Karlsruhe Germany Ruder Boskovic Institute Bijenicka cesta 54 10000 Zagreb Croatia Departamento de Ciencias Físicas Universidad Andres Bello Sazié 2212 Piso 7 Santiago Chile Millennium Institute for Subatomic Physics at the High-Energy Frontier (SAPHIR) of ANID Fernández Concha 700 Santiago Chile Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla 110-V Valparaíso Chile Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 D-72076 Tübingen Germany Bogoliubov Laboratory of Theoretical Physics JINR 141980 Dubna Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov street 134 664033 Irkutsk Russia

We propose an extension of the Standard model (Sm) with a UA′(1) gauge-invariant dark sector connected to the Sm via a new portal—the Stueckelberg portal, arising in the framework of dark photon A′ mass generation via the Stueckelberg mechanism. This portal opens through the effective dim=5 operators constructed from the covariant term of the auxiliary Stueckelberg scalar field σ providing flavor nondiagonal renormalizable couplings of both σ and A′ to the Sm fermions ψ. The Stueckelberg scalar plays a role of Goldstone boson in the generation of mass of the dark photon. Contrary to the conventional kinetic mixing portal, in our scenario, flavor diagonal A′−ψ couplings are not proportional to the fermion charges and are, in general, flavor nondiagonal. These features drastically change the phenomenology of dark photon A′ relaxing or avoiding some previously established experimental constraints. We focus on the phenomenology of the described scenario of the Stueckelberg portal in the lepton sector and analyze the contribution of the dark sector fields A′ to the anomalous magnetic moment of muon (g−2)μ, lepton flavor–violating decays li→lkγ, and μ−e conversion in nuclei. We obtain limits on the model parameters from the existing data on the corresponding observables.

关键词： Particle dark matter Hypothetical gauge bosons Hypothetical particles Hypothetical scalars

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Probing invisible vector meson decay mode with the hadronic beam in the NA64 experiment at SPS CERN

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Physical Review D 2023年第11期108卷 115005-115005页

作者： Alexey S. Zhevlakov Dmitry v. Kirpichnikov Sergei N. Gninenko Sergey Kuleshov valery E. Lyubovitskij Bogoliubov Laboratory of Theoretical Physics JINR 141980 Dubna Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov str. 134 664033 Irkutsk Russia Institute for Nuclear Research of the Russian Academy of Sciences 117312 Moscow Russia Millennium Institute for Subatomic Physics at the High-Energy Frontier (SAPHIR) of ANID Fernández Concha 700 Santiago Chile Center for Theoretical and Experimental Particle Physics Facultad de Ciencias Exactas Universidad Andres Bello Fernandez Concha 700 Santiago Chile Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 D-72076 Tübingen Germany Departamento de Física y Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla 110-V Valparaíso Chile

We test a novel idea of using a π− beam in the fixed-target experiments to search for new physics in the events with missing energy. Bounds for invisible vector ρ meson decay were derived, analyzed, and compared with the current limits on searching dark matter in the accelerator based experiments. We demonstrate that the new approach can be effective tool to probe sub-Gev dark matter parameter space.

关键词： Particle dark matter Particle decays Weakly interacting massive particles

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Dark SU(2) Stueckelberg portal

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Physical Review D 2023年第5期107卷 055006-055006页

作者： valery E. Lyubovitskij Alexey S. Zhevlakov Aliaksei Kachanovich Serguei Kuleshov Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 D-72076 Tübingen Germany Departamento de Física y Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla 110-V Valparaíso Chile Millennium Institute for Subatomic Physics at the High-Energy Frontier (SAPHIR) of ANID Fernández Concha 700 Santiago Chile Bogoliubov Laboratory of Theoretical Physics JINR 141980 Dubna Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov Street 134 664033 Irkutsk Russia Rudjer Bos̆ković Institute Division of Theoretical Physics Bijenićka 54 HR-10000 Zagreb Croatia Departamento de Ciencias Físicas Universidad Andres Bello Sazié 2212 Piso 7 Santiago Chile

We study the non-Abelian SU(2)D extension of the U(1)D Stueckelberg portal, which plays the role of mediator between the Standard model (Sm) and dark sector. This portal is specified by the Stueckelberg mechanism for generation of dark gauge boson masses. The proposed U(1)D⊗SU(2)D Stueckelberg portal has a connection with Sm matter fields, in analogy with the familon model. We derive bounds on the couplings of dark portal bosons and Sm particles, which govern diagonal and nondiagonal flavor transitions of quarks and leptons.

关键词： Hypothetical particle physics models Particle dark matter

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Implication of the dark axion portal for the EDm of fermions and dark matter probing with NA64e, NA64µ, LDmX, m3, and BaBar

arXiv

引用

arXiv 2022年

作者： Zhevlakov, Alexey S. Kirpichnikov, Dmitry v. Lyubovitskij, valery E. Bogoliubov Laboratory of Theoretical Physics JINR Dubna 141980 Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov str. 134 Irkutsk664033 Russia Institute for Nuclear Research of the Russian Academy of Sciences Moscow117312 Russia Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 TübingenD-72076 Germany Departamento de Física Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla 110-V Valparaíso Chile of ANID Fernández Concha 700 Santiago Chile Department of Physics Tomsk State University Tomsk634050 Russia Tomsk Polytechnic University Tomsk634050 Russia

The link between ordinary Standard model (Sm) photon and both dark photon and axion like particle (ALP) can be introduced through the dark axion portal coupling. Given the dark axion portal setup, in the present paper we refer the dark photon as the mediator between Sm and dark matter (Dm) particles, implying that it decays predominantly into pair of Dm fermions. Furthermore, we discuss in detail the implication of the dark axion portal scenario for the lepton (electron and muon) fixed target experiments. In particular, for the specific fixed target facility we study the missing energy signatures of the dark photon production followed by its invisible decay into stable Dm particles. We investigated the potential to probe dark axion portal vertices with regarding signatures and derive the expected sensitivities of NA64e, NA64µ, LDmX and m3. moreover, we estimated the expected reach of NA64e from the projected statistics of the J/ψ vector meson invisible decays. We also recasted BaBar monophoton bounds for the specific dark axion portal scenario. In addition, we modified the dark axion portal setup by including in the model both the hadron and lepton specific ALP couplings. As the result, we obtain the bounds on the combination of fermion-specific couplings of ALP from the fixed target experiments. We discuss the implication of the modified dark axion portal scenario for the electric dipole moments (EDm) of Sm fermions. In addition, we derived the novel constraints on the combination of the CP-violating neutron-specific ALP couplings from the existing bounds on neutron EDm by taking into account the neutron anomalous magnetic moment. © 2022, CC BY.

关键词： Galaxies

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Bounds on rare decays of η and η0 mesons from the neutron EDm

arXiv

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arXiv 2018年

作者： Zhevlakov, Alexey S. Gorchtein, mikhail Hiller Blin, Astrid N. Gutsche, Thomas Lyubovitskij, valery E. Department of Physics Tomsk State University Tomsk634050 Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov str. 134 Irkutsk664033 Russia Institut für Kernphysik Johannes Gutenberg-Universität Mainz Germany PRISMA Cluster of Excellence Johannes Gutenberg-Universität Mainz Germany Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 TübingenD-72076 Germany Departamento de Física y Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla 110-V Valparaíso Chile Laboratory of Particle Physics Tomsk Polytechnic University Tomsk634050 Russia

We provide model-independent bounds on the rates of rare decays η(η0) → ππ based on experimental limits on the neutron electric dipole moment (nEDm). Starting from phenomenological η(η0)ππ couplings, the nEDm arises at two loop level. The leading-order relativistic ChPT calculation with the minimal photon coupling to charged pions and a proton inside the loops leads to a finite, counter term-free result. This is an improv.m.nt upon previous estimates which used approximations in evaluating the two loop contribution and were plagued by divergences. While constraints on the η(η0)ππ couplings in our phenomenological approach are somewhat milder than in the picture with the QCD θ-term, our calculation means that whatever the origin of these couplings, The decays η(η0) → 2π will remain unobservable in the near future. Copyright © 2018, The Authors. All rights reserved.

关键词： Bosons

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Probing leptophobic dark sector with a pseudoscalar portal in the NA64 experiment at CERN

arXiv

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arXiv 2024年

作者： Gninenko, Sergei N. Kirpichnikov, Dmitry v. Krasnikov, Nikolai v. Kuleshov, Sergey Lyubovitskij, valery E. Zhevlakov, Alexey S. Institute for Nuclear Research The Russian Academy of Sciences Moscow117312 Russia of ANID Fernández Concha 700 Santiago Chile Center for Theoretical and Experimental Particle Physics Facultad de Ciencias Exactas Universidad Andres Bello Fernandez Concha 700 Santiago Chile Institut für Theoretische Physik Universität Tübingen Kepler Center for Astro and Particle Physics Auf der Morgenstelle 14 TübingenD-72076 Germany Departamento de Física Centro Científico Tecnológico de Valparaíso-CCTVal Universidad Técnica Federico Santa María Casilla 110-V Valparaíso Chile Bogoliubov Laboratory of Theoretical Physics JINR Dubna141980 Russia Matrosov Institute for System Dynamics and Control Theory SB RAS Lermontov str. 134 Irkutsk664033 Russia

We consider the possibility of discovering a light pseudoscalar particle a, which could the axion or an axion-like particle (ALP), interacting mainly with quarks using the electron and photon scattering reaction chain e + Z → e + γ + Z;γ + Z → a + Z on nuclei in the NA64 experiment at the CERN SPS. New bounds on the coupling strengths of the axion/ALP with quarks and of pseudoscalar mesons P = π, η, η′ with dark fermions are obtained by using existing upper bounds on invisible decay modes of P s including those recently derived by NA64. We also study a scenario when the a plays the role of a messenger in the communication between our world and the dark sector. © 2024, CC BY.

关键词： Inelastic scattering

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