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Volume 326 - The International Conference on B-Physics at Frontier Machines (BEAUTY2018) - Session: Spectroscopy
Exotic Spectroscopy at LHCb
G. Cavallero* on behalf of the LHCb collaboration
*corresponding author
Full text: pdf
Pre-published on: 2018 July 31
Published on: 2018 October 30
Abstract
The LHCb collaboration achieved important results in the exotic spectroscopy sector using $pp$ collision data collected with the LHCb detector at centre-of-mass energies of $\sqrt{s} = 7$ and $\sqrt{s} =8$ TeV during Run1, corresponding to an integrated luminosity of 3 $fb^{-1}$. These results include the discovery of two pentaquark candidates by an amplitude analysis of $\Lambda^0_b \to J/\psi pK^-$ decays, by a model-independent approach and by an amplitude analysis of $\Lambda^0_b \to J/\psi p \pi^-$ decays. Following the interest arised from these discoveries, further LHCb studies related to the pentaquark spectroscopy have been carried out, including the first observation of $\Lambda^0_b \to \chi_{c(1,2)} p K^-$ decays, a search for weakly decaying $b$-flavoured pentaquarks, and a search for exotic states in $\Lambda^0_b \to \Lambda^+_c p \bar{p} \pi^-$ decays.
DOI: https://doi.org/10.22323/1.326.0019
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