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High Energy Physics - Phenomenology

arXiv:1610.08296 (hep-ph)
[Submitted on 26 Oct 2016 (v1), last revised 14 Nov 2016 (this version, v2)]

Title:$Λ_b \to π^- (D_s^-) Λ_c(2595),~π^- (D_s^-) Λ_c(2625)$ decays and $DN,~D^*N$ molecular components

Authors:Wei-Hong Liang, Melahat Bayar, Eulogio Oset
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Abstract:From the perspective that the $\Lambda_c(2595)$ and $\Lambda_c(2625)$ are dynamically generated resonances from the $DN,~D^*N$ interaction and coupled channels, we have evaluated the rates for $\Lambda_b \to \pi^- \Lambda_c(2595)$ and $\Lambda_b \to \pi^- \Lambda_c(2625)$ up to a global unknown factor that allows us to calculate the ratio of rates and compare with experiment, where good agreement is found. Similarly, we can also make predictions for the ratio of rates of the, yet unknown, decays of $\Lambda_b \to D_s^- \Lambda_c(2595)$ and $\Lambda_b \to D_s^- \Lambda_c(2625)$ and make estimates for their individual branching fractions.
Comments: 9 pages, 3 figures; V2: new references added
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:1610.08296 [hep-ph]
  (or arXiv:1610.08296v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1610.08296

Submission history

From: Wei-Hong Liang [view email]
[v1] Wed, 26 Oct 2016 12:24:36 UTC (182 KB)
[v2] Mon, 14 Nov 2016 03:49:20 UTC (182 KB)
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