Search for a massive invisible particle X0 in B+ →e+X0 and B+ →μ+X0 decays

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题名:	Search for a massive invisible particle X0 in B+ →e+X0 and B+ →μ+X0 decays
作者:	陳鎰鋒;Kwon, Y.-J;Adachi, I;Aihara, H;Asner, D. M;Aushev, T;Badhrees, I;Bhardwaj, V;Bonvicini, G;Bozek, A;Browder, T. E;Chekelian, V;Chen, A;Cheon, B. G;Chilikin, K;Chobanova, V;Choi, Y;Cinabro, D;Dash, N;DoleŽal, Z;Dutta, D;Eidelman, S;Farhat, H;Ferber, T;Gaur, V;Gabyshev, N;Gillard, R;Goh, Y. M;Grzymkowska, O;Hara, T;Hayashii, H;Hou, W.-S;Inami, K;Itoh, R;Iwasaki, Y;Jeon, H. B;Kang, K. H;Kato, E;Kim, J. B;Kim, K. T;Kim, M. J;Kim, S. H;Kodyš, P;Korpar, S;KriŽan, P;Krokovny, P;Li, L;Liventsev, D;Lukin, P;Masuda, M;Matvienko, D;Miyabayashi, K;Mizuk, R;Mohanty, S;Mussa, R;Nakao, M;Nath, K. J;Nayak, M;Negishi, K;Okuno, S;Pakhlov, P;Pakhlova, G;Park, C. W;Piilonen, L. E;Pulvermacher, C;Rauch, J;Ritter, M;Sandilya, S;Santelj, L;Sanuki, T;Schlüter, T;Schneider, O;Schnell, G;Schwanda, C;Schwartz, A. J;Semmler, D;Senyo, K;Shebalin, V;Shen, C. P;Shiu, J.-G;Stanič, S;Starič, M;Stypula, J;Tamponi, U;Trabelsi, K;Uchida, M;Uglov, T;Unno, Y;Uno, S;Usov, Y;Van Hulse, C;Varner, G;Varvell, K. E;Wagner, M. N;Wang, M.-Z;Watanabe, Y;Won, E;Yamaoka, J;Yusa, Y;Zhilich, V;Zupanc, A
贡献者:	理學院物理學系
关键词:	ddc:530;info:eu-repo/classification/ddc/530;Physics
日期:	2016-07-18
上传时间:	2026-04-23 12:47:44 (UTC+8)
出版者:	American Physical Society;American Physical Society (APS)
摘要:	摘要： We present a search for a non-Standard-Model invisible particle X-0 in the mass range 0.1-1.8 GeV/c(2) in B+ -> e(+)X(0) and B+ -> mu X-+(0) decays. The results are obtained from a 711 fb(-1) data sample that corresponds to 772 x 10(6) B (B) over bar pairs, collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. One B meson is fully reconstructed in a hadronic mode to determine the momentum of the lepton of the signal decay in the rest frame of the recoiling partner B meson. We find no evidence of a signal and set upper limits on the order of 10(-6). 出版者： American Physical Society (APS) 出版日期： 2016-07-18 出處： Physical Review D, 2016-07, Vol.94 識別號： ISSN: 2470-0010 識別號： EISSN: 2470-0029 識別號： DOI: 10.1103/physrevd.94.012003
显示于类别:	[物理學系] 期刊論文

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