| Title: |
Ξ c → Ξ semileptonic decays: A light cone sum rules view on the experiment-lattice tension |
| Authors: |
Aliev, T. M.; Bilmis, S.; Savci, M. |
| Source: |
Physical Review D ; volume 113, issue 1 ; ISSN 2470-0010 2470-0029 |
| Publisher Information: |
American Physical Society (APS) |
| Publication Year: |
2026 |
| Description: |
We present a light-cone QCD sum rule (LCSR) analysis of the semileptonic decays of baryons, focusing on the channels , and . The transition form factors are calculated within the light-cone quantum chromodynamics (QCD) sum rules framework, using the distribution amplitudes of the heavy baryons. The obtained form factors are then used to compute the differential and total decay widths, as well as the branching fractions. Our numerical results for the branching fractions are , B ( Ξ c 0 → Ξ − μ + ν μ ) = ( 3.59 ± 1.01 ) % , B ( Ξ c + → Ξ 0 ℓ + ν ℓ ) = ( 11.2 ± 3.25 ) % , and B ( Ξ c + → Ξ 0 μ + ν μ ) = ( 10.8 ± 3.13 ) % . These results are in good agreement with recent lattice QCD calculations, while being larger than the current experimental measurements and differing from the predictions of other theoretical approaches. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1103/16zp-mzpd |
| DOI: |
10.1103/16zp-mzpd/fulltext |
| Availability: |
https://doi.org/10.1103/16zp-mzpd; https://link.aps.org/article/10.1103/16zp-mzpd; http://harvest.aps.org/v2/journals/articles/10.1103/16zp-mzpd/fulltext |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.67A7A4D6 |
| Database: |
BASE |