| Title | Inclusive approach to hunt for the beauty-charmed baryons Xi(bc) |
| Authors | Qin, Qin Shi, Yu-Ji Wang, Wei Yang, Guo-He Yu, Fu-Sheng Zhu, Ruilin |
| Affiliation | Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai Key Lab Particle Phys & Cosmol, MOE Key Lab Particle Phys Astrophys & Cosmol, Shanghai 200240, Peoples R China Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China Nanjing Normal Univ, Dept Phys, Nanjing 210023, Jiangsu, Peoples R China Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210023, Jiangsu, Peoples R China |
| Issue Date | 7-Feb-2022 |
| Publisher | PHYSICAL REVIEW D |
| Abstract | With a distinctive internal structure from all established hadrons, the beauty-charmed baryons Xi(bc) can provide us with new points of view to decipher the strong interaction. In this work, we point out that the inclusive Xi(bc )-> Xi(++)(cc)+X decay is a golden channel for the experimental discovery of Xi(bc) at the LHC. A unique feature of this process is that the Xi(++)(cc) is displaced, which greatly reduces the combinatorial background. A feasibility analysis is performed on the Xi(+)(bc) search, which is expected to have a longer lifetime than Xi(0)(bc) and thus a better displacement resolution. The Xi(+)(bc) -> Xi(++)(cc)+X branching ratio is calculated within the heavy diquark effective theory. Combining the production rate of Xi(bc) and the detection efficiency of Xi(++)(cc), we anticipate that hundreds of signal events will be collected during LHCb Run 3. |
| URI | http://hdl.handle.net/20.500.11897/637907 |
| ISSN | 2470-0010 |
| DOI | 10.1103/PhysRevD.105.L031902 |
| Indexed | SCI(E) |
| Appears in Collections: | 物理学院 |
