Zobrazeno 1 - 10
of 25
pro vyhledávání: '"NA64 Collaboration"'
Autor:
C. Cazzaniga, P. Odagiu, E. Depero, L. Molina Bueno, Yu. M. Andreev, D. Banerjee, J. Bernhard, V. E. Burtsev, N. Charitonidis, A. G. Chumakov, D. Cooke, P. Crivelli, A. V. Dermenev, S. V. Donskov, R. R. Dusaev, T. Enik, A. Feshchenko, V. N. Frolov, A. Gardikiotis, S. G. Gerassimov, S. Girod, S. N. Gninenko, M. Hösgen, V. A. Kachanov, A. E. Karneyeu, G. Kekelidze, B. Ketzer, D. V. Kirpichnikov, M. M. Kirsanov, V. N. Kolosov, I. V. Konorov, S. G. Kovalenko, V. A. Kramarenko, L. V. Kravchuk, N. V. Krasnikov, S. V. Kuleshov, V. E. Lyubovitskij, V. Lysan, V. A. Matveev, Yu. V. Mikhailov, D. V. Peshekhonov, V. A. Polyakov, B. Radics, R. Rojas, A. Rubbia, V. D. Samoylenko, D. Shchukin, H. Sieber, V. O. Tikhomirov, I. V. Tlisova, D. A. Tlisov, A. N. Toropin, A. Yu. Trifonov, B. I. Vasilishin, G. Vasquez Arenas, P. V. Volkov, V. Yu. Volkov, P. Ulloa, NA64 Collaboration
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 10, Pp 1-6 (2021)
Abstract We report the results of a search for a new vector boson ( $$ A'$$ A ′ ) decaying into two dark matter particles $$\chi _1 \chi _2$$ χ 1 χ 2 of different mass. The heavier $$\chi _2$$ χ 2 particle subsequently decays to $$\chi _1$$ χ 1
Externí odkaz:
https://doaj.org/article/d638f1f95fe64431ace3772742807e9c
Autor:
NA64 Collaboration, E. Depero, Yu. M. Andreev, D. Banerjee, J. Bernhard, V. E. Burtsev, N. Charitonidis, A. G. Chumakov, D. Cooke, P. Crivelli, A. V. Dermenev, S. V. Donskov, R. R. Dusaev, T. Enik, A. Feshchenko, V. N. Frolov, A. Gardikiotis, S. G. Gerassimov, S. Girod, S. N. Gninenko, M. Hösgen, V. A. Kachanov, A. E. Karneyeu, G. Kekelidze, B. Ketzer, D. V. Kirpichnikov, M. M. Kirsanov, V. N. Kolosov, I. V. Konorov, S. G. Kovalenko, V. A. Kramarenko, L. V. Kravchuk, N. V. Krasnikov, S. V. Kuleshov, V. E. Lyubovitskij, V. Lysan, V. A. Matveev, Yu. V. Mikhailov, L. Molina Bueno, D. V. Peshekhonov, V. A. Polyakov, B. Radics, R. Rojas, A. Rubbia, V. D. Samoylenko, D. Shchukin, H. Sieber, V. O. Tikhomirov, vI. Tlisova, D. A. Tlisov, A. N. Toropin, A. Yu. Trifonov, B. I. Vasilishin, G. Vasquez Arenas, P. V. Volkov, V. Yu. Volkov, P. Ulloa
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 12, Pp 1-17 (2020)
Abstract Recently, the ATOMKI experiment has reported new evidence for the excess of $$e^+e^-$$ e + e - events with a mass $$\sim $$ ∼ 17 MeV in the nuclear transitions of $$^4$$ 4 He, that they previously observed in measurements with $$^8$$ 8 Be.
Externí odkaz:
https://doaj.org/article/0d106ea877b5480d9d9f1153773da072
Autor:
NA64 Collaboration, Banerjee, D., Burtsev, V. E., Chumakov, A. G., Cooke, D., Crivelli, P., Depero, E., Dermenev, A. V., Donskov, S. V., Dubinin, F., Dusaev, R. R., Emmenegger, S., Fabich, A., Frolov, V. N., Gardikiotis, A., Gerassimov, S. G., Gninenko, S. N., Hosgen, M., Karneyeu, A. E., Ketzer, B., Kirpichnikov, D. V., Kirsanov, M. M., Konorov, I. V., Kovalenko, S. G., Kramarenko, V. A., Kravchuk, L. V., Krasnikov, N. V., Kuleshov, S. V., Lyubovitskij, V. E., Lysan, V., Matveev, V. A., Mikhailov, Yu. V., Peshekhonov, D. V., Polyakov, V. A., Radics, B., Rubbia, A., Samoylenko, V. D., Tikhomirov, V. O., Tlisov, D. A., Toropin, A. N., Trifonov, A. Yu., Vasilishin, B. I., Arenas, G. Vasquez, Ulloa, P.
Publikováno v:
Phys. Rev. D 97, 072002 (2018)
A search is performed for a new sub-GeV vector boson ($A'$) mediated production of Dark Matter ($\chi$) in the fixed-target experiment, NA64, at the CERN SPS. The $A'$, called dark photon, could be generated in the reaction $ e^- Z \to e^- Z A'$ of 1
Externí odkaz:
http://arxiv.org/abs/1710.00971
Autor:
NA64 Collaboration, Banerjee, D., Burtsev, V., Cooke, D., Crivelli, P., Depero, E., Dermenev, A. V., Donskov, S. V., Dubinin, F., Dusaev, R. R., Emmenegger, S., Fabich, A., Frolov, V. N., Gardikiotis, A., Gninenko, S. N., Hosgen, M., Kachanov, V. A., Karneyeu, A. E., Ketzer, B., Kirpichnikov, D. V., Kirsanov, M. M., Kovalenko, S. G., Kramarenko, V. A., Kravchuk, L. V., Krasnikov, N. V., Kuleshov, S. V., Lyubovitskij, V. E., Lysan, V., Matveev, V. A., Mikhailov, Yu. V., Myalkovskiy, V. V., Peshekhonov, V. D., Peshekhonov, D. V., Petuhov, O., Polyakov, V. A., Radics, B., Rubbia, A., Samoylenko, V. D., Tikhomirov, V. O., Tlisov, D. A., Toropin, A. N., Trifonov, A. Yu., Vasilishin, B., Arenas, G. Vasquez, Ulloa, P., Zhukov, K., Zioutas, K.
Publikováno v:
Phys. Rev. Lett. 118, 011802 (2017)
We report on a direct search for sub-GeV dark photons (A') which might be produced in the reaction e^- Z \to e^- Z A' via kinetic mixing with photons by 100 GeV electrons incident on an active target in the NA64 experiment at the CERN SPS. The A's wo
Externí odkaz:
http://arxiv.org/abs/1610.02988
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
NA64 Collaboration, Andreev, Yu M., Banerjee, Dipanwita, Banto Oberhauser, Benjamin, Bernhard, Johannes, Bisio, Paolo, Burtsev, Vitalii, Celentano, Andrea, Charitonidis, Nikolaos, Chumakov, Alexandr G., Cooke, David A., Crivelli, Paolo, Depero, Emilio, Dermenev, Alexander, Donskov, Sergey V., Dusaev, Renat Ramilyevich, Enik, Temur, Frolov, Vladimir N., Gardikiotis, Antonios, Gerasimov, Sergei, Gninenko, Sergei N., Molina Bueno, Laura, Radics, Balint, Rubbia, André, Sieber, Henri
Publikováno v:
Physical Review Letters, 129 (16)
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 3.22
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15996c622e9a61cbafe161415b885ba3
Autor:
Andreev, Yu M., Banerjee, Dipanwita, Banto Oberhauser, Benjamin, Bernhard, Johannes, Bisio, Paolo, Bondí, Mariangela, Burtsev, Vitalii, Celentano, Andrea, Charitonidis, Nikolaos, Chumakov, Alexandr G., Cooke, David A., Crivelli, Paolo, Depero, E., Dermenev, Alexander, Donskov, Sergey V., Dusaev, Renat R., Enik, Temur, Frolov, Vladimir N., Gardikiotis, Antonios, Gerassimov, Sergei, Radics, Balint, Rubbia, André, Sieber, Henri, NA64 collaboration
Publikováno v:
Physical Review D, 106 (3)
The extension of Standard Model made by inclusion of additional U(1) gauge Lμ-Lτ 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 predic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cc276068d74c91ba39032aa513d7d89
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
NA64 Collaboration, Andreev, Yu M., Crivelli, Paolo, Depero, Emilio, Molina Bueno, Laura, Radics, Balint, Rubbia, André, Sieber, Henri
Publikováno v:
Physical Review Letters, 126 (21)
We performed a search for a new generic X boson, which could be a scalar (S), pseudoscalar (P), vector (V), or an axial vector (A) particle produced in the 100 GeV electron scattering off nuclei, e-Z→e-ZX, followed by its invisible decay in the NA6
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bed9f16afe4467559182246f81804e0
https://hdl.handle.net/20.500.11850/489025
https://hdl.handle.net/20.500.11850/489025