A Possibility of Search for New Physics at LHCb - High Energy Physics - PhenomenologyReportar como inadecuado




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Abstract: It is interesting to search for new physics beyond the standard model atLHCb. We suggest that weak decays of doubly charmed baryon such as$\Xi {cc}3520^+, \Xi {cc}^{++}$ to charmless final states would be a possiblesignal for new physics. In this work, we consider two models, i.e. theunparticle and $Z-$ as examples to study such possibilities. We also discussthe cases for $\Xi^0 {bb}, \Xi {bb}^-$ which have not been observed yet, butone can expect to find them when LHCb begins running. Our numerical resultsshow that these two models cannot result in sufficiently large decay widths,therefore if such modes are observed at LHCb, there must be a new physics otherthan the unparticle or $Z-$ models.



Autor: Xiang Liu, Hong-Wei Ke, Qing-Peng Qiao, Zheng-Tao Wei, Xue-Qian Li

Fuente: https://arxiv.org/







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