학술논문
Search for a New B-L Z' Gauge Boson with the NA64 Experiment at CERN
Document Type
Working Paper
Author
Andreev, Yu. M.; Banerjee, D.; Banto-Oberhauser, B.; Bernhard, J.; Bisio, P.; Bondi, M.; Burtsev, V.; Celentano, A.; Charitonidis, N.; Chumakov, A. G.; Cooke, D.; Crivelli, P.; Depero, E.; Dermenev, A. V.; Donskov, S. V.; Dusaev, R. R.; Enik, T.; Frolov, V. N.; Gardikiotis, A.; Gerassimov, S. G.; Gninenko, S. N.; Hosgen, M.; Jeckel, M.; Kachanov, V. A.; Karneyeu, A. E.; Kekelidze, G. D.; Ketzer, B.; Kirpichnikov, D. V.; Kirsanov, M. M.; Kolosov, V. N.; Kovalenko, S. G.; Kramarenko, V. A.; Kravchuk, L. V.; Krasnikov, N. V.; Kuleshov, S. V.; Lyubovitskij, V. E.; Lysan, V.; Marsicano, L.; Matveev, V. A.; Mikhailov, Yu. V.; Bueno, L. Molina; Peshekhonov, D. V.; Polyakov, V. A.; Radics, B.; Rubbia, A.; Salamatin, K.; Samoylenko, V. D.; Sieber, H.; Shchukin, D.; Soto, O.; Tikhomirov, V. O.; Tlisova, I.; Toropin, A. N.; Vasilishin, B. I.; Volkov, P. V.; Volkov, V. Yu.; Voronchikhin, I.; Zamora-Saa, J.
Source
Phys.Rev.Lett. 129, 161801 (2022)
Subject
Language
Abstract
A search for a new $Z'$ gauge boson associated with (un)broken B-L symmetry in the keV-GeV mass range is carried out for the first time using the missing-energy technique in the NA64 experiment at the CERN SPS. From the analysis of the data with 3.22e11 electrons on target collected during 2016-2021 runs no signal events were found. This allows to derive new constraints on the $Z'-e$ coupling strength, which for the mass range $0.3 < m_{Z'} < 100$ MeV are more stringent compared to those obtained from the neutrino-electron scattering data.
Comment: 6 pages, 3 figures. Revised shorter version, Fig.3 updated, published in Physical Review Letters
Comment: 6 pages, 3 figures. Revised shorter version, Fig.3 updated, published in Physical Review Letters