论文标题

搜索Belle II中$ E^+E^ - $ Collisions中产生的类似轴子的粒子

Search for Axion-Like Particles produced in $e^+e^-$ collisions at Belle II

论文作者

Belle II collaboration, Abudinen, F., Adachi, I., Aihara, H., Akopov, N., Aloisio, A., Ameli, F., Ky, N. Anh, Asner, D. M., Aushev, T., Aushev, V., Babu, V., Baehr, S., Bahinipati, S., Bambade, P., Banerjee, Sw., Bansal, S., Baudot, J., Becker, J., Behera, P. K., Bennett, J. V., Bernieri, E., Bernlochner, F. U., Bertemes, M., Bessner, M., Bettarini, S., Bhardwaj, V., Bianchi, F., Bilka, T., Bilokin, S., Biswas, D., Bračko, M., Branchini, P., Braun, N., Browder, T. E., Budano, A., Bussino, S., Campajola, M., Casarosa, G., Cecchi, C., Červenkov, D., Chang, M. -C., Chang, P., Cheaib, R., Chekelian, V., Cheon, B. G., Chilikin, K., Chirapatpimol, K., Cho, H. -E., Cho, K., Cho, S. -J., Choi, S. -K., Cinabro, D., Corona, L., Cremaldi, L. M., Cunliffe, S., Dash, N., Dattola, F., De La Cruz-Burelo, E., De Nardo, G., De Nuccio, M., De Pietro, G., de Sangro, R., Destefanis, M., De Yta-Hernandez, A., Di Capua, F., Doležal, Z., Dong, T. V., Dort, K., Dossett, D., Dujany, G., Eidelman, S., Ferber, T., Ferlewicz, D., Fiore, S., Fodor, A., Forti, F., Fulsom, B. G., Ganiev, E., Garg, R., Garmash, A., Gaur, V., Gaz, A., Gebauer, U., Gellrich, A., Geßler, T., Giordano, R., Giri, A., Gobbo, B., Godang, R., Goldenzweig, P., Golob, B., Gomis, P., Gradl, W., Graziani, E., Greenwald, D., Hadjivasiliou, C., Halder, S., Hartbrich, O., Hayasaka, K., Hayashii, H., Hearty, C., Hedges, M. T., de la Cruz, I. Heredia, Villanueva, M. Hernández, Hershenhorn, A., Higuchi, T., Hill, E. C., Hirata, H., Hoek, M., Hohmann, M., Hsu, C. -L., Hu, Y., Inami, K., Inguglia, G., Jabbar, J. Irakkathil, Ishikawa, A., Itoh, R., Jackson, P., Jacobs, W. W., Jaffe, D. E., Jang, E. -J., Jia, S., Jin, Y., Joo, C., Kaliyar, A. B., Kandra, J., Karyan, G., Kato, Y., Kichimi, H., Kiesling, C., Kim, C. -H., Kim, D. Y., Kim, H. J., Kim, S. -H., Kim, Y. -K., Kimmel, T. D., Kinoshita, K., Kleinwort, C., Kodyš, P., Koga, T., Kohani, S., Komarov, I., Korpar, S., Kraetzschmar, T. M. G., Križan, P., Krokovny, P., Kuhr, T., Kumar, M., Kumar, R., Kumara, K., Kurz, S., Kwon, Y. -J., Lacaprara, S., La Licata, C., Lanceri, L., Lange, J. S., Lee, I. -S., Lee, S. C., Leitl, P., Levit, D., Lewis, P. M., Li, C., Li, L. K., Li, Y. B., Libby, J., Lieret, K., Gioi, L. Li, Liptak, Z., Liu, Q. Y., Liventsev, D., Longo, S., Luo, T., MacQueen, C., Maeda, Y., Manfredi, R., Manoni, E., Marcello, S., Marinas, C., Martini, A., Masuda, M., Matsuoka, K., Matvienko, D., Meggendorfer, F., Meier, F., Merola, M., Metzner, F., Milesi, M., Miller, C., Miyabayashi, K., Mizuk, R., Azmi, K., Mohanty, G. B., Moser, H. -G., Mrvar, M., Müller, F. J., Mussa, R., Nakamura, I., Nakao, M., Nakazawa, H., Natochii, A., Niebuhr, C., Nisar, N. K., Nishida, S., Nouxman, M. H. A., Ogawa, K., Ogawa, S., Ono, H., Oskin, P., Ozaki, H., Pakhlov, P., Paladino, A., Panta, A., Paoloni, E., Pardi, S., Park, H., Park, S. -H., Paschen, B., Passeri, A., Pathak, A., Patra, S., Paul, S., Pedlar, T. K., Peruzzi, I., Peschke, R., Piccolo, M., Piilonen, L. E., Polat, G., Popov, V., Praz, C., Prencipe, E., Prim, M. T., Purohit, M. V., Rad, N., Rados, P., Rasheed, R., Reif, M., Reiter, S., Remnev, M., Ripp-Baudot, I., Ritter, M., Ritzert, M., Rizzo, G., Robertson, S. H., Pérez, D. Rodríguez, Roney, J. M., Rosenfeld, C., Rostomyan, A., Rout, N., Sahoo, D., Sakai, Y., Sanders, D. A., Sandilya, S., Sangal, A., Santelj, L., Sato, Y., Savinov, V., Scavino, B., Schwanda, C., Schwartz, A. J., Seddon, R. M., Seino, Y., Selce, A., Senyo, K., Serrano, J., Sevior, M. E., Sfienti, C., Shiu, J. -G., Sibidanov, A., Simon, F., Sobie, R. J., Soffer, A., Solovieva, E., Spataro, S., Spruck, B., Starič, M., Stefkova, S., Stottler, Z. S., Stroili, R., Strube, J., Sumihama, M., Sumiyoshi, T., Summers, D. J., Sutcliffe, W., Svidras, H., Tabata, M., Takizawa, M., Tamponi, U., Tanaka, S., Tanida, K., Tanigawa, H., Taras, P., Tenchini, F., Tonelli, D., Torassa, E., Trabelsi, K., Uchida, M., Uglov, T., Unger, K., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Vahsen, S. E., van Tonder, R., Varner, G. S., Varvell, K. E., Vinokurova, A., Vitale, L., Waheed, E., Wakai, M., Wakeling, H. M., Wang, C. H., Wang, M. -Z., Wang, X. L., Warburton, A., Watanabe, M., Watanuki, S., Webb, J., Wehle, S., Welsch, M., Wessel, C., Wiechczynski, J., Windel, H., Won, E., Wu, L. J., Xu, X. P., Yabsley, B., Yan, W., Yang, S. B., Ye, H., Yonenaga, M., Yuan, C. Z., Yusa, Y., Zani, L., Zhou, Q. D., Zhukova, V. I.

论文摘要

我们向Superkekb Collider的Belle II探测器进行了直接生产,以直接生产光伪ca $ a $ a $ n衰减成两个光子。我们在质量范围$ {0.2} \,<m_a <{9.7} \,{\ text {gev/$ c $ c $}^2} $(使用与$(445 \ pm pm pm pm pm pm pm pm pm pm pm pmpm) 3)\,\ text {pb}^{ - 1} $。在标准模型的扩展中,经常假定光伪型主要与标准模型仪(所谓的轴突样颗粒或阿尔卑斯山)相互作用。我们没有发现阿尔卑斯山的证据,并在耦合强度上设置了95%的置信度上限$ g_ {Aγγ} $的光子,以$ 10^{ - 3} \,{\ text {gev}^{ - 1}} $的水平。限制是迄今为止的最限制,价格为$ 0.2 \,<\,m_a \,<\,1 \,{\ text {gev/$ c $}^2} $。

We present a search for the direct production of a light pseudoscalar $a$ decaying into two photons with the Belle II detector at the SuperKEKB collider. We search for the process ${e^+e^-\toγa, a \toγγ}$ in the mass range ${0.2} \,< m_a < {9.7}\,{\text{GeV/$c$}^2}$ using data corresponding to an integrated luminosity of $(445\pm 3)\,\text{pb}^{-1}$. Light pseudoscalars interacting predominantly with standard model gauge bosons (so-called axion-like particles or ALPs) are frequently postulated in extensions of the standard model. We find no evidence for ALPs and set 95% confidence level upper limits on the coupling strength $g_{aγγ}$ of ALPs to photons at the level of $10^{-3}\,{\text{GeV}^{-1}}$. The limits are the most restrictive to date for $0.2\,<\,m_a\,<\,1\,{\text{GeV/$c$}^2}$.

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