Search for B0 decays to invisible final states at Belle

C. L. Hsu,P. Chang,I. Adachi,Hiroaki Aihara,K. Arinstein,D. M. Asner,V.M. Aulchenko,Tagir Aushev,A. M. Bakich,B. Bhuyan,M. Bischofberger,A.E. Bondar,G. Bonvicini,A. Bozek,M. Bračko,T. E. Browder,M. C. Chang,Y. Chao,V. Chekelian,A. Chen,Po-Hsun Chen,B. G. Cheon,K. Chilikin,I. S. Cho,K. Cho,Y. Choi,J. Dalseno,Jochen Dingfelder,Z. Doležal,Z. Drásal,D. Dutta,Semen Eidelman,D. Epifanov,S. Esen,H. Farhat,James E. Fast,V. Gaur,N. Gabyshev,R. Gillard,Y. M. Goh,J. Haba,T. Hara, K. Hayasaka,H. Hayashii,Yasuyuki Horii,Y. Hoshi,W. S. Hou,Y. B. Hsiung,H. J. Hyun,Toru Iijima,K. Inami,A. Ishikawa,R. Itoh,M. Iwabuchi,Y. Iwasaki,T. Iwashita,T. Julius,J. H. Kang, T. Kawasaki,H. Kichimi, C. Kiesling, H. J. Kim, H. O. Kim, J. B. Kim,Jung-Hyun Kim, K. T. Kim,Yongsun Kim,B. R. Ko,Peter Kodys,Samo Korpar,Pavel Krokovny, T. Kuhr,A. Kuzmin,Peter Kvasnicka,Y. J. Kwon,S. H. Lee,J. Li,Yang Li,J. Libby,Yueh-Feng Liu,Z. Q. Liu,D. Liventsev,R. Louvot,K. Miyabayashi,H. Miyata,Y. Miyazaki,G. B. Mohanty,A. Moll,Norihito Muramatsu,E. Nakano,M. Nakao,Z. Natkaniec,C. Ng,S. Nishida,O. Nitoh,T. Ohshima,S. Okuno,S. L. Olsen,G. Pakhlova,C. W. Park

Physical Review D（2020）

引用 2|浏览57

暂无评分

摘要

We report searches for B0→invisible and B0→invisible+γ decays, where the energy of the photon is required to be larger than 0.5 GeV. These results are obtained from a 711 fb-1 data sample that contains 772×106BB¯ pairs and was collected near the ϒ(4S) resonance with the Belle detector at the KEKB e+e- collider. We observe no significant signal for either decay and set upper limits on their branching fractions at 90% confidence level of B(B0→invisible)<7.8×10-5 and B(B0→invisible+γ)<1.6×10-5.

查看译文

关键词

<mmlmath xmlnsmml=http//wwww3org/1998/math/mathml,invisible final states

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要