Inclusive approach to hunt for the beauty-charmed baryons ${\Xi }_{bc}$

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 ${\Xi }_{bc}\to {\Xi }_{cc}^{++}+X$ 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 ${\Xi }_{bc}^0$ and thus a better displacement resolution. The ${\Xi }_{bc}^{+}\to {\Xi }_{cc}^{++}+X$ branching ratio is calculated within the heavy diquark effective theory. Combining the ${\Xi }_{bc}$ production rate and the ${\Xi }_{cc}^{++}$ detection efficiency, we anticipate that hundreds of signal events will be collected during LHCb Run 3.

6 pages, 3 figures

References in corpus (12)

• Pentaquark and Tetraquark states
• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Discovery of doubly-charmed Xi_{cc} baryon implies a stable (b b ubar dbar) tetraquark
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• Weak Decays of Doubly Heavy Baryons: the $1/2\to 1/2$ case
• Precise measurement of the $f_s/f_d$ ratio of fragmentation fractions and of $B_s^0$ decay branching fractions
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• Estimation of Semileptonic Decays of $B_c$ Meson to S-wave Charmonia with NRQCD
• Search for the doubly heavy baryons ${\Omega }_{bc}^0$ and ${\Xi }_{bc}^0$ decaying to ${\Lambda }_c^{+}{\pi }^{-}$ and ${\Xi }_c^{+}{\pi }^{-}$
• Precision measurement of the ${\Xi }_{cc}^{++}$ mass
• Hadronic Production of the Doubly Heavy Baryon ${\Xi }_{bc}$ at LHC
• Lifetimes of Doubly Heavy Baryons ${\mathcal{B}}_{bb}$ and ${\mathcal{B}}_{bc}$

Cited by in corpus (20)

• Hadronic molecule interpretation of $T_{cc}^{+}$ and its beauty-partners
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Bound isoscalar axial-vector $bc\bar{u}\bar{d}$ tetraquark $T_{bc}$ from lattice QCD using two-meson and diquark-antidiquark variational basis
• Mass spectra of ${\Xi }_{cc}$, ${\Xi }_{bc}$, ${\Omega }_{cc}$, and ${\Omega }_{bc}$ baryons in Regge Phenomenology
• Diagrammatic analysis of hidden- and open-charm tetraquark production in $B$ decays
• Weak decays of triply heavy baryons in light front approach
• Doubly charmed pentaquark states in QCD sum rules
• Baryons in the light-front approach: The three-quark picture
• W-exchange contribution to the decays ${\Xi }_{cc}^{++}\to {\Xi }_c^{+(\prime )}{\pi }^{+}$ using light-cone sum rules
• Next-to-leading order QCD calculation of $B_c$ to charmonium tensor form factors
• Light quark decays of doubly heavy baryons in light front approach
• Generation of isospin sum rules in heavy hadron weak decays
• $D_s^{\ast }\to \varphi$ helicity form factors and the exclusive weak decays
• Static properties and Semileptonic transitions of lowest-lying double heavy baryons
• Inclusive weak-annihilation decays and lifetimes of beauty-charmed baryons
• Hadronic production of ${\Xi }_{bc}$ with the intrinsic heavy-quark content at a fixed-target experiment at the LHC
• Isospin sum rules in charmed baryon weak decays
• Precise study of triply charmed baryons ${\Omega }_{ccc}$
• Light cone QCD sum rules study of the rare radiative ${\Xi }_{bb}^{\ast }\to {\Xi }_b\gamma$ decay
• The effects of polarization on the observables in the decay ${\Xi }_{cc}^{++}\to {\Xi }_c^{+}\bar{\ell }{\nu }_{\ell }$