Nonleptonic decays of the double-charmed baryon Ξcc+ with dynamically determined baryon wave functions
Abstract
Motivated by the recent observation of the double-charmed baryon Ξcc+ by the LHCb Collaboration, we systematically investigate the two-body nonleptonic decays of the Ξcc+ into a single-charmed baryon and a light pseudoscalar meson. In our calculation, both factorizable and nonfactorizable decay amplitudes are evaluated within the framework of nonrelativistic quark model combined with the baryon wave functions dynamically determined by numerically solving the three-body Schrödinger equation with a nonrelativistic potential model. In particular, the nonfactorizable W-exchange amplitudes are estimated under pole model by considering JP=1/2± low-lying intermediate charmed-baryon poles, and our results show that these contributions are comparable to or even dominate the factorizable amplitudes in several decay channels. Moreover, assuming a lifetime of τΞcc+=47 fs, we predict relatively large branching fractions for several CF decays, including ℬ(Ξcc+→Ξc′0π+)=8.90%, ℬ(Ξcc+→Ωc0K+)=7.09%, ℬ(Ξcc+→Σc+K̅0)=6.92%, ℬ(Ξcc+→Ξc+π0)=5.28%, and ℬ(Ξcc+→Σc++K−)=5.17%. These channels are promising candidates for future experimental searches at the LHCb.
Related
- Spectra and nonleptonic decays of multiply heavy baryons in a finite-size quark-diquark model
- U-spin sum rules in charmed baryon decays beyond the U-spin limit
- Charmed baryon decays at BESIII
- Revisiting two-body charmed anti-charmed baryonic B decays
- Charmed baryon semileptonic decays in a relativistic three-quark model
BibTeX
@misc{li2026nonleptonic,
title = {{Nonleptonic decays of the double-charmed baryon $Ξ_cc^+$ with dynamically determined baryon wave functions}},
author = {Yu-Shuai Li and Hong-Tao An},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.21307},
eprint = {2610.21307},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.21307},
}
RIS
TY - UNPB
TI - Nonleptonic decays of the double-charmed baryon Ξ_cc^+ with dynamically determined baryon wave functions
AU - Yu-Shuai Li
AU - Hong-Tao An
PY - 2026
DA - 2026/10/15
PB - arXiv
DO - 10.48550/arxiv.2610.21307
UR - https://arxiv.org/abs/2610.21307
AB - Motivated by the recent observation of the double-charmed baryon Ξ_cc^+ by the LHCb Collaboration, we systematically investigate the two-body nonleptonic decays of the Ξ_cc^+ into a single-charmed baryon and a light pseudoscalar meson. In our calculation, both factorizable and nonfactorizable decay amplitudes are evaluated within the framework of nonrelativistic quark model combined with the baryon wave functions dynamically determined by numerically solving the three-body Schrödinger equation with a nonrelativistic potential model. In particular, the nonfactorizable W-exchange amplitudes are estimated under pole model by considering J^P=1/2^± low-lying intermediate charmed-baryon poles, and our results show that these contributions are comparable to or even dominate the factorizable amplitudes in several decay channels. Moreover, assuming a lifetime of τ_Ξ_cc^+=47 fs, we predict relatively large branching fractions for several CF decays, including ℬ(Ξ_cc^+→Ξ_c^′0π^+)=8.90%, ℬ(Ξ_cc^+→Ω_c^0K^+)=7.09%, ℬ(Ξ_cc^+→Σ_c^+K̅^0)=6.92%, ℬ(Ξ_cc^+→Ξ_c^+π^0)=5.28%, and ℬ(Ξ_cc^+→Σ_c^++K^−)=5.17%. These channels are promising candidates for future experimental searches at the LHCb.
ER -