發送短信 : Exclusive χ(2P) production in Υ{hooked}(3S) decay

 _    _      ___      ______   _    _             
| |  | ||   / _ \\   /_   _// | || | ||     ___   
| |/\| ||  | / \ ||    | ||   | || | ||    /   || 
|  /\  ||  | \_/ ||   _| ||   | \\_/ ||   | [] || 
|_// \_||   \___//   /__//     \____//     \__ || 
`-`   `-`   `---`    `--`       `---`       -|_|| 
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