Data di Pubblicazione:
2023
Abstract:
: We report on the first search for Λ[over ¯]-Λ oscillations in the decay J/ψ→pK^{-}Λ[over ¯]+c.c. by analyzing 1.31×10^{9} J/ψ events accumulated with the BESIII detector at the BEPCII collider. The J/ψ events are produced using e^{+}e^{-} collisions at a center of mass energy sqrt[s]=3.097 GeV. No evidence for hyperon oscillations is observed. The upper limit for the oscillation rate of Λ[over ¯] to Λ hyperons is determined to be P(Λ)=[B(J/ψ→pK^{-}Λ+c.c.)/B(J/ψ→pK^{-}Λ[over ¯]+c.c.)]<4.4×10^{-6} corresponding to an oscillation parameter δm_{ΛΛ[over ¯]} of less than 3.8×10^{-18} GeV at the 90% confidence level.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
Ablikim, M; Achasov, M N; Adlarson, P; Ahmed, S; Albrecht, M; Aliberti, R; Amoroso, A; An, Q; Bai, Y; Bakina, O; Ferroli, R Baldini; Balossino, I; Ban, Y; Begzsuren, K; Berger, N; Bertani, M; Bettoni, D; Bianchi, F; Bloms, J; Bortone, A; Boyko, I; Briere, R A; Cai, H; Cai, X; Calcaterra, A; Cao, G F; Cao, N; Cetin, S A; Chang, J F; Chang, W L; Chelkov, G; Chen, G; Chen, H S; Chen, M L; Chen, S J; Chen, X R; Chen, Y B; Chen, Z J; Cheng, W S; Cibinetto, G; Cossio, F; Dai, H L; Dai, J P; Dai, X C; Dbeyssi, A; de Boer, R E; Dedovich, D; Deng, Z Y; Denig, A; Denysenko, I; Destefanis, M; De Mori, F; Ding, Y; Dong, J; Dong, L Y; Dong, M Y; Dong, X; Du, S X; Fang, J; Fang, S S; Fang, Y; Farinelli, R; Fava, L; Feldbauer, F; Felici, G; Feng, C Q; Fritsch, M; Fu, C D; Gao, Y N; Gao, Ya; Gao, Yang; Garzia, I; Gersabeck, E M; Gilman, A; Goetzen, K; Gong, L; Gong, W X; Gradl, W; Greco, M; Gu, L M; Gu, M H; Gu, S; Gu, Y T; Guan, C Y; Guo, A Q; Guo, L B; Guo, R P; Guo, Y P; Guskov, A; Han, T T; Hao, X Q; Harris, F A; He, K L; Heinsius, F H H; Heinz, C H; Heng, Y K; Herold, C; Himmelreich, M; Holtmann, T; Hou, Y R; Hou, Z L; Hu, H M; Hu, J F; Hu, T; Hu, Y; Huang, G S; Huang, L Q; Huang, X T; Huang, Y P; Hussain, T; Imoehl, W; Irshad, M; Jaeger, S; Janchiv, S; Ji, Q; Ji, Q P; Ji, X B; Ji, X L; Jiang, X S; Jiao, J B; Jiao, Z; Jin, S; Jin, Y; Johansson, T; Kalantar-Nayestanaki, N; Kang, X S; Kappert, R; Kavatsyuk, M; Ke, B C; Keshk, I K; Khoukaz, A; Kiese, P; Kiuchi, R; Kliemt, R; Kolcu, O B; Kopf, B; Kuemmel, M; Kuessner, M K; Kupsc, A; Kurth, M G; Kühn, W; Lane, J J; Larin, P; Lavania, A; Lavezzi, L; Lei, Z H; Leithoff, H; Lellmann, M; Lenz, T; Li, C; Li, C H; Li, Cheng; Li, D M; Li, F; Li, G; Li, H; Li, H B; Li, H J; Li, J Q; Li, J W; Li, Ke; Li, L K; Li, Lei; Li, P L; Li, P R; Li, S Y; Li, W D; Li, W G; Li, X H; Li, X L; Li, Z Y; Liang, H; Liang, H; Liang, H; Liang, Y F; Liang, Y T; Liao, G R; Liao, L Z; Libby, J; Limphirat, A; Liu, B J; Liu, C X; Liu, D; Liu, F H; Liu, Fang; Liu, Feng; Liu, H B; Liu, H M; Liu, Huanhuan; Liu, Huihui; Liu, J B; Liu, J Y; Liu, K; Liu, K Y; Liu, L; Liu, M H; Liu, Q; Liu, S B; Liu, Shuai; Liu, T; Liu, W M; Liu, X; Liu, Y B; Liu, Z A; Liu, Z Q; Lou, X C; Lu, F X; Lu, H J; Lu, J D; Lu, J G; Lu, X L; Lu, Y; Lu, Y P; Luo, C L; Luo, M X; Luo, T; Luo, X L; Lusso, S; Lyu, X R; Ma, F C; Ma, H L; Ma, L L; Ma, M M; Ma, Q M; Ma, R Q; Ma, R T; Ma, X X; Ma, X Y; Maas, F E; Maggiora, M; Maldaner, S; Malde, S; Malik, Q A; Mangoni, A; Mao, Y J; Mao, Z P; Marcello, S; Meng, Z X; Messchendorp, J G; Mezzadri, G; Min, T J; Mitchell, R E; Mo, X H; Muchnoi, N Yu; Muramatsu, H; Nakhoul, S; Nefedov, Y; Nerling, F; Nikolaev, I B; Ning, Z; Nisar, S; Olsen, S L; Ouyang, Q; Pacetti, S; Pan, X; Pan, Y; Pathak, A; Patteri, P; Pelizaeus, M; Peng, H P; Peters, K; Ping, J L; Ping, R G; Pitka, A; Poling, R; Prasad, V; Qi, H; Qi, H R; Qi, M; Qi, T Y; Qian, S; Qian, W B; Qiao, C F; Qin, L Q; Qin, X P; Qin, X S; Qin, Z H; Qiu, J F; Qu, S Q; Qu, S Q; Ravindran, K; Redmer, C F; Rivetti, A; Rodin, V; Rolo, M; Rong, G; Rosner, Ch; Sarantsev, A; Schelhaas, Y; Schnier, C; Schoenning, K; Scodeggio, M; Shan, D C; Shan, W; Shan, X Y; Shao, M; Shen, C P; Shen, P X; Shen, X Y; Shi, H C; Shi, R S; Shi, X; Shi, X D; Song, W M; Song, Y X; Sosio, S; Spataro, S; Su, K X; Sun, G X; Sun, J F; Sun, L; Sun, S S; Sun, T; Sun, W Y; Sun, Y J; Sun, Y K; Sun, Y Z; Sun, Z T; Tan, Y H; Tan, Y X; Tang, C J; Tang, G Y; Tang, J; Teng, J X; Thoren, V; Uman, I; Wang, B; Wang, B L; Wang, C W; Wang, D Y; Wang, H P; Wang, K; Wang, L L; Wang, M; Wang, Meng; Wang, W H; Wang, W P; Wang, X; Wang, X F; Wang, X L; Wang, Y; Wang, Y D; Wang, Y F; Wang, Y Q; Wang, Z; Wang, Z Y; Wang, Ziyi; Wang, Zongyuan; Wei, D H; Weidenkaff, P; Weidner, F; Wen, S P; White, D J; Wiedner, U W; Wilkinson, G; Wolke, M; Wollenberg, L; Wu, J F; Wu, L H; Wu, L J; Wu, X; Wu, Z; Xia, L; Xiao, H; Xiao, S Y; Xiao, Z J; Xie, X H; Xie, Y G; Xie, Y H; Xing, T Y; Xu, G F;
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