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首页|Study of $χ_{bJ}(2P)\toωΥ(1S)$ at Belle

Study of $χ_{bJ}(2P)\toωΥ(1S)$ at Belle

Study of $χ_{bJ}(2P)\toωΥ(1S)$ at Belle

来源：Arxiv_logoArxiv
英文摘要

We report a study of the hadronic transitions $χ_{bJ}(2P)\toωΥ(1S)$, with $ω\toπ^{+}π^{-}π^{0}$, using $28.2\times10^6~Υ(3S)$ mesons recorded by the Belle detector. We present the first evidence for the near--threshold transition $χ_{b0}(2P)\toωΥ(1S)$, the analog of the near-threshold charm sector decay $χ_{c1}(3872)\toωJ/ψ$, with a branching fraction of $\cal{B}\big(χ_{b0}(2P)\toωΥ(1S)\big) = \big(0.55\pm0.19\pm0.07\big)\%$. We also obtain branching fractions of $\cal{B}\big(χ_{b1}(2P)\toωΥ(1S)\big) = \big(2.39{}^{+0.20}_{-0.19}\pm0.24\big)\%$ and $\cal{B}\big(χ_{b2}(2P)\toωΥ(1S)\big) = \big(0.47{}^{+0.13}_{-0.12}\pm0.06\big)\%$, confirming the measurement of the $ω$ transitions of the $J=1,2~P$--wave states. The ratio for the $J=2$ to $J=1$ transitions is also measured and found to differ by 3.3 standard deviations from the expected value in the QCD multipole expansion.

E. Won、Y. Unno、M. Takizawa、F. Di Capua、D. Cinabro、A. Budano、M. Campajola、S. Uno、G. Varner、C. H. Kim、C. Sharma、S. Korpar、N. Ipsita、A. Korobov、P. Krokovny、E. Kovalenko、P. Križan、T. Kuhr、S. Choudhury、K. Kumara、M. Kumar、R. Kumar、Y. -J. Kwon、A. Kuzmin、T. Lam、M. Laurenza、Y. -T. Lai、L. Cao、L. Nayak、S. Ogawa、J. Libby、K. Lieret、D. Liventsev、T. Luo、Y. Ma、M. Masuda、S. K. Maurya、P. Pakhlov、G. Pakhlova、S. Patra、T. Pang、S. Pardi、J. Park、S. -H. Park、S. Paul、P. Oskin、L. E. Piilonen、S. Das、G. De Nardo、G. De Pietro、R. Dhamija、Z. Doležal、T. V. Dong、S. Dubey、P. Ecker、D. Epifanov、T. Ferber、D. Ferlewicz、V. Gaur、A. Garmash、A. Giri、P. Goldenzweig、E. Graziani、T. Gu、Y. Guan、K. Gudkova、C. Hadjivasiliou、T. Hara、K. Hayasaka、S. Hazra、M. T. Hedges、D. Herrmann、W. -S. Hou、C. -L. Hsu、K. Inami、A. Ishikawa、R. Itoh、M. Iwasaki、Y. Iwasaki、W. W. Jacobs、S. Jia、Y. Jin、A. B. Kaliyar、T. Kawasaki、C. Kiesling、D. Y. Kim、K. -H. Kim、Y. -K. Kim、P. Kodyš、S. C. Lee、D. Levit、P. Lewis、L. K. Li、F. Meier、M. Merola、K. Miyabayashi、G. B. Mohanty、I. Nakamura、M. Nakao、A. Natochii、N. K. Nisar、S. Nishida、K. Ogawa、H. Ono、R. Pestotnik、T. Podobnik、E. Prencipe、M. T. Prim、N. Rout、G. Russo、S. Sandilya、A. Sangal、L. Santelj、V. Savinov、G. Schnell、C. Schwanda、Y. Seino、K. Senyo、W. Shan、M. Shapkin、J. -G. Shiu、A. Sokolov、E. Solovieva、M. Starič、M. Sumihama、W. Sutcliffe、K. Tanida、F. Tenchini、R. Tiwary、M. Uchida、S. E. Vahsen、D. Wang、E. Wang、M. -Z. Wang、S. Watanuki、O. Werbycka、B. D. Yabsley、W. Yan、J. H. Yin、C. Z. Yuan、L. Yuan、Y. Yusa、Z. P. Zhang、V. Zhilich、V. Zhukova、Belle Collaboration、Z. S. Stottler、T. K. Pedlar、B. G. Fulsom、I. Adachi、K. Adamczyk、H. Aihara、S. Al Said、D. M. Asner、H. Atmacan、T. Aushev、R. Ayad、V. Babu、Sw. Banerjee、M. Bauer、P. Behera、K. Belous、J. Bennett、F. Bernlochner、M. Bessner、T. Bilka、D. Biswas、A. Bobrov、D. Bodrov、G. Bonvicini、J. Borah、A. Bozek、P. Branchini、T. E. Browder、D. Červenkov、M. -C. Chang、B. G. Cheon、K. Chilikin、H. E. Cho、K. Cho、S. -K. Choi、Y. Choi

10.1103/dpb3-l6zc

物理学

E. Won,Y. Unno,M. Takizawa,F. Di Capua,D. Cinabro,A. Budano,M. Campajola,S. Uno,G. Varner,C. H. Kim,C. Sharma,S. Korpar,N. Ipsita,A. Korobov,P. Krokovny,E. Kovalenko,P. Križan,T. Kuhr,S. Choudhury,K. Kumara,M. Kumar,R. Kumar,Y. -J. Kwon,A. Kuzmin,T. Lam,M. Laurenza,Y. -T. Lai,L. Cao,L. Nayak,S. Ogawa,J. Libby,K. Lieret,D. Liventsev,T. Luo,Y. Ma,M. Masuda,S. K. Maurya,P. Pakhlov,G. Pakhlova,S. Patra,T. Pang,S. Pardi,J. Park,S. -H. Park,S. Paul,P. Oskin,L. E. Piilonen,S. Das,G. De Nardo,G. De Pietro,R. Dhamija,Z. Doležal,T. V. Dong,S. Dubey,P. Ecker,D. Epifanov,T. Ferber,D. Ferlewicz,V. Gaur,A. Garmash,A. Giri,P. Goldenzweig,E. Graziani,T. Gu,Y. Guan,K. Gudkova,C. Hadjivasiliou,T. Hara,K. Hayasaka,S. Hazra,M. T. Hedges,D. Herrmann,W. -S. Hou,C. -L. Hsu,K. Inami,A. Ishikawa,R. Itoh,M. Iwasaki,Y. Iwasaki,W. W. Jacobs,S. Jia,Y. Jin,A. B. Kaliyar,T. Kawasaki,C. Kiesling,D. Y. Kim,K. -H. Kim,Y. -K. Kim,P. Kodyš,S. C. Lee,D. Levit,P. Lewis,L. K. Li,F. Meier,M. Merola,K. Miyabayashi,G. B. Mohanty,I. Nakamura,M. Nakao,A. Natochii,N. K. Nisar,S. Nishida,K. Ogawa,H. Ono,R. Pestotnik,T. Podobnik,E. Prencipe,M. T. Prim,N. Rout,G. Russo,S. Sandilya,A. Sangal,L. Santelj,V. Savinov,G. Schnell,C. Schwanda,Y. Seino,K. Senyo,W. Shan,M. Shapkin,J. -G. Shiu,A. Sokolov,E. Solovieva,M. Starič,M. Sumihama,W. Sutcliffe,K. Tanida,F. Tenchini,R. Tiwary,M. Uchida,S. E. Vahsen,D. Wang,E. Wang,M. -Z. Wang,S. Watanuki,O. Werbycka,B. D. Yabsley,W. Yan,J. H. Yin,C. Z. Yuan,L. Yuan,Y. Yusa,Z. P. Zhang,V. Zhilich,V. Zhukova,Belle Collaboration,Z. S. Stottler,T. K. Pedlar,B. G. Fulsom,I. Adachi,K. Adamczyk,H. Aihara,S. Al Said,D. M. Asner,H. Atmacan,T. Aushev,R. Ayad,V. Babu,Sw. Banerjee,M. Bauer,P. Behera,K. Belous,J. Bennett,F. Bernlochner,M. Bessner,T. Bilka,D. Biswas,A. Bobrov,D. Bodrov,G. Bonvicini,J. Borah,A. Bozek,P. Branchini,T. E. Browder,D. Červenkov,M. -C. Chang,B. G. Cheon,K. Chilikin,H. E. Cho,K. Cho,S. -K. Choi,Y. Choi.Study of $χ_{bJ}(2P)\toωΥ(1S)$ at Belle[EB/OL].(2025-07-23)[2025-08-06].https://arxiv.org/abs/2407.00879.点此复制

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