Cross section of the process $e^+e^-\to n\bar{n}$ near the threshold

Autor: Achasov, M. N., Barnyakov, A. Yu., Bedarev, E. V., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Botov, A. A., Dimova, T. V., Druzhinin, V. P., Zhabin, V. N., Zharinov, Yu. M., Kardapoltsev, L. V., Kasaev, A. S., Kattsin, A. A., Kovrizhin, D. P., Korol, A. A., Kupich, A. S., Kryukov, A. P., Lysenko, A. P., Melnikova, N. A., Muchnoi, N. Yu., Obrazovsky, A. E., Pakhtusova, E. V., Pugachev, K. V., Rastigeev, S. A., Rogovsky, Yu. A., Senchenko, A. I., Serednyakov, S. I., Silagadze, Z. K., Surin, I. K., Usov, Yu. V., Kharlamov, A. G., Chistyakov, D. E., Shatunov, Yu. M., Sherstyuk, S. P., Shtol, D. A.

The $e^+e^-\to n\bar{n}$ cross section was measured at center of mass (c.m.) energies from the threshold to 1908 MeV. The experiment to measure the cross section has been carried out at the VEPP-2000 $e^+e^-$ collider in 13 energy points. The SND det

Externí odkaz: http://arxiv.org/abs/2407.15308

Measurement of the pion form factor with CMD-3 detector and its implication to the hadronic contribution to muon (g-2)

Autor: Collaboration, CMD-3, Ignatov, F. V., Akhmetshin, R. R., Amirkhanov, A. N., Anisenkov, A. V., Aulchenko, V. M., Bashtovoy, N. S., Berkaev, D. E., Bondar, A. E., Bragin, A. V., Eidelman, S. I., Epifanov, D. A., Epshteyn, L. B., Erofeev, A. L., Fedotovich, G. V., Gorkovenko, A. O., Grancagnolo, F. J., Grebenuk, A. A., Gribanov, S. S., Grigoriev, D. N., Ivanov, V. L., Karpov, S. V., Kasaev, A. S., Kazanin, V. F., Khazin, B. I., Kirpotin, A. N., Koop, I. A., Korobov, A. A., Kozyrev, A. N., Kozyrev, E. A., Krokovny, P. P., Kuzmenko, A. E., Kuzmin, A. S., Logashenko, I. B., Lukin, P. A., Lysenko, A. P., Mikhailov, K. Yu., Obraztsov, I. V., Okhapkin, V. S., Otboev, A. V., Perevedentsev, E. A., Pestov, Yu. N., Popov, A. S., Razuvaev, G. P., Rogovsky, Yu. A., Ruban, A. A., Ryskulov, N. M., Ryzhenenkov, A. E., Semenov, A. V., Senchenko, A. I., Shatunov, P. Yu., Shatunov, Yu. M., Shebalin, V. E., Shemyakin, D. N., Shwartz, B. A., Shwartz, D. B., Sibidanov, A. L., Solodov, E. P., Talyshev, A. A., Timoshenko, M. V., Titov, V. M., Tolmachev, S. S., Vorobiov, A. I., Yudin, Yu. V., Zemlyansky, I. M., Zhadan, D. S., Zharinov, Yu. M., Zubakin, A. S.

Publikováno v: Phys. Rev. Lett. 132, 231903 (2024)

The cross section of the process $e^+e^-\to\pi^+\pi^-$ has been measured in the center-of-mass energy range from 0.32 to 1.2 GeV with the CMD-3 detector at the electron-positron collider VEPP-2000. The measurement is based on an integrated luminosity

Externí odkaz: http://arxiv.org/abs/2309.12910

Study of the process $e^+e^- \to \omega\pi^0 \to \pi^+\pi^-\pi^0\pi^0$ in the energy range $1.05-2.00$ GeV with SND

Autor: SND Collaboration, Achasov, M. N., Barnyakov, A. Yu., Beloborodov, K. I., Berdyugin, A. V., Berkaev, D. E., Bogdanchikov, A. G., Botov, A. A., Denisov, V. S., Dimova, T. V., Druzhinin, V. P., Eminov, E. A., Fomin, L. B., Kardapoltsev, L. V., Kharlamov, A. G., Koop, I. A., Korol, A. A., Kovrizhin, D. P., Kupich, A. S., Kryukov, A. P., Melnikova, N. A., Muchnoy, N. Yu., Obrazovsky, A. E., Pakhtusova, E. V., Perevedentsev, E. A., Pugachev, K. V., Rogovsky, Yu. A., Serednyakov, S. I., Shatunov, Yu. M., Shtol, D. A., Silagadze, Z. K., Surin, I. K., Timoshenko, M. V., Usov, Yu. V., Zemlyansky, I. M., Zhabin, V. N., Zhulanov, V. V.

The process $e^+e^- \to \omega\pi^0 \to \pi^+\pi^-\pi^0\pi^0$ is studied in the center-of-mass energy region $1.05-2.00$ GeV using data with an integral luminosity of about 35 pb$^{-1}$ collected with the SND detector at the VEPP-2000 $e^+e^-$ collid

Externí odkaz: http://arxiv.org/abs/2309.00280

Study of the process $e^+e^-\to\eta\gamma\to 7\gamma$ in the energy range $\sqrt{s}$ = 1.07 -- 2 GeV

Autor: SND Collaboration, Achasov, M. N., Barnyakov, A. Yu., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Botov, A. A., Denisov, V. S., Dimova, T. V., Druzhinin, V. P., Fomin, L. B., Kharlamov, A. G., Kardapoltsev, L. V., Kyrpotin, A. N., Koop, I. A., Korol, A. A., Kovrizhin, D. P., Kryukov, A. P., Kupich, A. S., Melnikova, N. A., Muchnoi, N. Yu., Obrazovsky, A. E., Pakhtusova, E. V., Perevedentsev, E. A., Pugachev, K. V., Rogovsky, Yu. A., Serednyakov, S. I., Silagadze, Z. K., Surin, I. K., Timoshenko, M. V., Usov, Yu. V., Zhabin, V. N., Zhulanov, V. V., Zemlyansky, I. M., Shatunov, Yu. M., Shtol, D. A., Shukaev, A. N., Eminov, E. A.

Publikováno v: Phys.Atom.Nucl. 86 (2023) 6, 1157-1164

The $e^+e^-\to\eta\gamma$ cross section is measured in the center-of-mass energy range from 1.07 to 2.00 GeV in the decay channel $\eta\to 3\pi^0$, $\pi^0\to\gamma\gamma$. The data set with an integrated luminosity of 242 pb$^{-1}$ accumulated in the

Externí odkaz: http://arxiv.org/abs/2306.12734

Snowmass 2021 White Paper on Upgrading SuperKEKB with a Polarized Electron Beam: Discovery Potential and Proposed Implementation

Autor: Accardi, A., Asner, D. M., Atmacan, H., Baartman, R., Banerjee, Sw., Beaubien, A., Bennett, J. V., Bertemes, M., Bessner, M., Biswas, D., Bonvicini, G., Brenny, N., Briere, R. A., Browder, T. E., Chen, C., Choudhury, S., Cinabro, D., Cochran, J., Cremaldi, L. M., Deconinck, W., Di Canto, A., Dubey, S., Flood, K., Fulsom, B. G., Gaur, V., Gericke, M., Godang, R., Gu, T., Guan, Y., Guilliams, J., Hadjivasiliou, C., Hartbrich, O., Hearty, C., Hoferichter, M., Jacobs, W. W., Jaffe, D. E., Junginger, T., Kang, S., Kapitánová, L., Ketter, C., Khatri, A., Kinoshita, K., Kohani, S., Koop, I. A., Korandla, H., Sari, I. Koseoglu, Kroeger, R., Kumar, J., Kumara, K. J., Kuriki, M., Lam, T., Laycock, P. J., Diberder, F. R. Le, Li, L., Liptak, Z., Liventsev, D., Mammei, J., Martens, A., Meier, F., Miller, C., Mitra, S., Moorthy, K., Natochii, A., Nellikunnummel, N., Nishimura, K. A., Otboev, A. V., Oxford, E. R., Panta, A., Parham, K., Parker, B., Pedlar, T. K., Peng, Y., Peschke, R., Piilonen, L. E., Planche, T., Pokharel, S., Prell, S., Purwar, H., Herrmann, D. E. Ricalde, Roney, J. M., Rosenfeld, C., Sahoo, D., Sanders, D. A., Sangal, A., Savinov, V., Schneider, S., Schueler, J., Schwartz, A. J., Shatunov, Yu. M., Shebalin, V., Sibidanov, A., Signori, A., Stottler, Z. S., Strube, J., Trabelsi, K., Tripathi, S., Vahsen, S. E., Varner, G. S., Vossen, A., Wang, D., Wang, E., Wienands, U., Wood, L., Yelton, J., Zhai, Y., Zhang, B., Zhou, D., Zomer, F.

Upgrading the SuperKEKB electron-positron collider with polarized electron beams opens a new program of precision physics at a center-of-mass energy of 10.58 GeV. This white paper describes the physics potential of this `Chiral Belle' program. It inc

Externí odkaz: http://arxiv.org/abs/2205.12847