Abstract
In this work, we preform a systematic study of the strong decays for the higher singly heavy baryon resonances $\Lambda_Q(3S)$, $\Lambda_Q(2P)$, $\Lambda_Q(2D)$, $\Lambda_Q(1F)$, $\Sigma_Q(3S)$, $\Sigma_Q(2P)$, $\Sigma_Q(2D)$, and $\Sigma_Q(1F)$ within the $^3P_0$ model. Our results show that most of the $\lambda-$mode higher excited $\Lambda_Q$ and $\Sigma_Q$ states have a relatively narrow width, and mainly decay into two-body final states with one heavy meson plus one light baryon. Our calculations provide abundant theoretical information and demonstrate the general feature for these higher states, which may be valuable for future experimental searches and establishing the singly heavy baryon spectrum.
Highlights
When the heavy meson plus light baryon decay mode occurs, the whole light quark subsystem goes into the final baryon as a spectator
We preform a systematic study of the strong decays of the higher excited singly heavy baryons ΛQ and ΣQ states
With the predicted masses of the relativistic quark model, the two body Okubo-Zweig-Iizuka-allowed strong decay widths of ΛQ ð3SÞ, ΛQ ð2PÞ, ΛQ ð2DÞ, ΛQ ð1FÞ, ΣQ ð3SÞ, ΣQ ð2PÞ, ΣQ ð2DÞ, and ΣQ ð1FÞ states are calculated by using the 3P0 quark pair creation model
Summary
If the higher resonances dominantly decay into the channels with one heavy meson plus one light baryon, they may be relatively easy to be observed in these special channels by future LHCb and BelleII experiments just as the Λc ð2940Þ resonance has been observed in the D0 p final state. Our results indicate that most of the λ-mode higher excited ΛQ and ΣQ states have relatively narrow total widths, and mainly decay into the heavy meson plus light baryon final states. For a heavy baryon A, it can decay into two final states B and C via a JPC 1⁄4 0þþ quark-antiquark pair [49], and the transition operator can be taken as. For the initial higher excited states, the predicted masses are adopted to calculate their strong decay behaviors. Λb π well [59]
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