Search for a light Z′ in the Lμ−Lτ scenario with the NA64-e experiment at CERN
| Parent link: | Physical Review D: particles, fields, gravitation, and cosmology Vol. 106, iss. 3.— 2022.— 032015, 12 p. |
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| Další autoři: | , , , , , , , |
| Shrnutí: | Title screen The extension of Standard Model made by inclusion of additional U(1) gauge Lµ-Lt symmetry can explain the difference between the measured and the predicted value of the muon magnetic moment and solve the tension in B meson decays. This model predicts the existence of a new, light Z' vector boson, predominantly coupled to second and third generation leptons, whose interaction with electrons is due to a loop mechanism involving muons and taus. In this work, we present a rigorous evaluation of the upper limits in the Z' parameter space, obtained from the analysis of the data collected by the NA64-e experiment at CERN SPS, that performed a search for light dark matter with 2.84Ч1011 electrons impinging with 100 GeV on an active thick target. The resulting limits touch the muon g-2 preferred band for values of the Z' mass of order of 1 MeV, while the sensitivity projections for the future high-statistics NA64-e runs demonstrate the power of the electrons/positron beam approach in this theoretical scenario. |
| Jazyk: | angličtina |
| Vydáno: |
2022
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| Témata: | |
| On-line přístup: | http://earchive.tpu.ru/handle/11683/132547 https://doi.org/10.1103/PhysRevD.106.032015 |
| Médium: | Elektronický zdroj Kapitola |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669490 |
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| 200 | 1 | |a Search for a light Z′ in the Lμ−Lτ scenario with the NA64-e experiment at CERN |f Yu. M. Andreev, D. Banerjee, A. G. Chumakov [et al.] | |
| 203 | |a Текст |c электронный |b визуальный | ||
| 300 | |a Title screen | ||
| 320 | |a References.: 67 tit | ||
| 330 | |a The extension of Standard Model made by inclusion of additional U(1) gauge Lµ-Lt symmetry can explain the difference between the measured and the predicted value of the muon magnetic moment and solve the tension in B meson decays. This model predicts the existence of a new, light Z' vector boson, predominantly coupled to second and third generation leptons, whose interaction with electrons is due to a loop mechanism involving muons and taus. In this work, we present a rigorous evaluation of the upper limits in the Z' parameter space, obtained from the analysis of the data collected by the NA64-e experiment at CERN SPS, that performed a search for light dark matter with 2.84Ч1011 electrons impinging with 100 GeV on an active thick target. The resulting limits touch the muon g-2 preferred band for values of the Z' mass of order of 1 MeV, while the sensitivity projections for the future high-statistics NA64-e runs demonstrate the power of the electrons/positron beam approach in this theoretical scenario. | ||
| 461 | 1 | |t Physical Review D |o particles, fields, gravitation, and cosmology | |
| 463 | 1 | |t Vol. 106, iss. 3 |v 032015, 12 p. |d 2022 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 701 | 1 | |a Andreev |b Yu. M. |g Yury Mikhaylovich | |
| 701 | 1 | |a Banerjee |b D. | |
| 701 | 1 | |a Chumakov |b A. G. |c physicist |c laboratory assistant-researcher of Tomsk Polytechnic University |f 1992- |g Aleksandr Grigorjevich |3 (RuTPU)RU\TPU\pers\41079 |9 21380 | |
| 701 | 1 | |a Dusaev |b R. R. |c specialist in the field of nuclear physics |c Engineer of Tomsk Polytechnic University |f 1988- |g Renat Ramilyevich |3 (RuTPU)RU\TPU\pers\30972 |9 15210 | |
| 701 | 1 | |a Lyubovitskiy (Lyubovitskij) |b V. E. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, Professor of the University of Tubingen (Germany) |f 1963- |g Valery Efimovich |3 (RuTPU)RU\TPU\pers\33385 |9 17080 | |
| 701 | 1 | |a Trifonov |b A. Yu. |c physicist, mathematician |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1963-2021 |g Andrey Yurievich |3 (RuTPU)RU\TPU\pers\30754 |9 15024 | |
| 701 | 1 | |a Vasilishin |b B. I. |c engineer-physicist |c laboratory researcher at Tomsk Polytechnic University |f 1990- |g Bogdan Ivanovich |3 (RuTPU)RU\TPU\pers\37572 |9 20428 | |
| 701 | 1 | |a Voronchikhin |b I. V. |c Specialist in the field of nuclear technologies |c Technician of Tomsk Polytechnic University |f 1996- |g Ilya Vyacheslavovich |3 (RuTPU)RU\TPU\pers\44601 |9 21823 | |
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| 856 | 4 | |u http://earchive.tpu.ru/handle/11683/132547 |z http://earchive.tpu.ru/handle/11683/132547 | |
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