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@ARTICLE{Aaij:454084,
author = {Aaij, Roel and others},
collaboration = {{LHCb Collaboration}},
title = {{F}irst branching fraction measurement of the suppressed
decay $\Xi_c^0\to \pi^-\Lambda_c^+$},
journal = {Physical review / D},
volume = {102},
number = {7},
issn = {2470-0010},
address = {Melville, NY},
publisher = {APS},
reportid = {PUBDB-2021-00415, arXiv:2007.12096. CERN-EP-2020-129.
LHCb-PAPER-2020-016},
pages = {071101},
year = {2020},
note = {Phys. Rev. D 102, 071101 (2020). Sixteen pages and three
figures. All figures and tables, along with machine-readable
versions and any supplementary material and additional
information, are available at
https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2020-016.html
(LHCb public pages) / Received 23 July 2020 / Accepted 11
September 2020 / Published 12 October 2020},
abstract = {The $\Xi_c^0$ baryon is unstable and usually decays into
charmless final states by the $c→su{\overline{d}}$
transition. It can, however, also disintegrate into a
$π^−$ meson and a $Λ^+_c$ baryon via $s$ quark decay or
via $cs→dc$ weak scattering. The interplay between the
latter two processes governs the size of the branching
fraction $B(\Xi_c^0→π^−Λ^+_c)$, first measured here to
be (0.55±0.02±0.18)\%, where the first uncertainty is
statistical and second systematic. This result is compatible
with the larger of the theoretical predictions that connect
models of hyperon decays using partially conserved axial
currents and SU(3) symmetry with those involving the
heavy-quark expansion and heavy-quark symmetry. In addition,
the branching fraction of the normalization channel,
$B(\Xi_c^+→pK^−π^+)$=(1.135±0.002±0.387)\% is
measured.},
keywords = {experimental results (INSPIRE) / LHC-B (INSPIRE) / Xi/c0:
branching ratio (INSPIRE) / heavy quark: symmetry (INSPIRE)
/ hyperon: decay (INSPIRE) / symmetry: SU(3) (INSPIRE) /
statistical (INSPIRE) / current: axial (INSPIRE) / Xi/c0 -->
pi- Lambda/c+ (INSPIRE) / Xi/c+ --> p K- pi+ (INSPIRE)},
cin = {Belle},
ddc = {530},
cid = {I:(DE-H253)Belle-20160426},
pnm = {611 - Fundamental Particles and Forces (POF3-611)},
pid = {G:(DE-HGF)POF3-611},
experiment = {EXP:(DE-H253)LHC-Exp-LHCb-20150101},
typ = {PUB:(DE-HGF)16},
eprint = {2007.12096},
howpublished = {arXiv:2007.12096},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2007.12096;\%\%$},
UT = {WOS:000576891900001},
doi = {10.1103/PhysRevD.102.071101},
url = {https://bib-pubdb1.desy.de/record/454084},
}