Prospects for rare and forbidden hyperon decays at BESIII

Abstract

The study of hyperon decays at the Beijing Electron Spectrometer III (BESIII) is proposed to investigate the events of $J/\psi$ decay into hyperon pairs, which provide a pristine experimental environment at the Beijing Electron--Positron Collider II. About $10^6$--$10^8$ hyperons, i.e., $\Lambda$, $\Sigma$, $\Xi$, and $\Omega$, will be produced in the $J/\psi$ and $\psi (2S)$ decays with the proposed data samples at BESIII. Based on these samples, the measurement sensitivity of the branching fractions of the hyperon decays is in the range of $10^{-5}$--$10^{-8}$. In addition, with the known center-of-mass energy and "tag technique," rare decays and decays with invisible final states can be probed.

8 pages, 8 tables, add more references and corrections; many typos fixed; erratum added: https://doi.org/10.1007/s11467-019-0910-7

References in corpus (9)

• Observation of electron-antineutrino disappearance at Daya Bay
• Octet-baryon axial-vector charges and SU(3)-breaking effects in the semileptonic hyperon decays
• Observation of Transverse $\Lambda /\bar{\Lambda }$ Hyperon Polarization in $e^{+}{e}^{-}$ Annihilation at Belle
• Exploratory Lattice QCD Study of the Rare Kaon Decay $K^{+}\to {\pi }^{+}\nu \bar{\nu }$
• Non-standard semileptonic hyperon decays
• SU(3)-breaking corrections to the hyperon vector coupling $f_1(0)$ in covariant baryon chiral perturbation theory
• Study of CP violation in ${\Lambda }_c^{+}$ decay
• Joint description of weak radiative and nonleptonic hyperon decays in broken SU(3)
• $\Delta L=2$ hyperon semileptonic decays

Cited by in corpus (51)

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• Tests of $CP$ symmetry in the entangled ${\Xi }^0-{\bar{\Xi }}^0$ Pairs
• Flavor Violating Axions in the Early Universe
• Supernova Constraints on Dark Flavored Sectors
• Testing SU(3) Flavor Symmetry in Semileptonic and Two-body Nonleptonic Decays of Hyperons
• CP Asymmetries in Strange Baryon Decays
• Strong and weak $CP$ tests in sequential decays of polarized ${\Sigma }^0$ hyperons
• Searching for dark photons in hyperon decays
• Rare hyperon decays with missing energy
• Prospects for CP & P violation in ${\Lambda }_c^{+}$ decay at STCF
• New physics in $s\to d$ semileptonic transitions: rare hyperon vs. kaon decays
• Exploring GeV-scale Majorana neutrinos in lepton-number-violating ${\Lambda }_b^0$ baryon decays
• The semileptonic baryonic decay $D_s^{+}\to p\bar{p}{e}^{+}{\nu }_e$
• Seeking massless dark photons in the decays of charmed hadrons
• Probing hyperon electric dipole moments with a full angular analysis
• Search for heavy Majorana neutrino in lepton number violating decays of D-> K pi e+ e+
• Exploring leptoquark effects in hyperon and kaon decays with missing energy
• Kaon decays shedding light on massless dark photons
• Flavor-changing hyperon decays with light invisible bosons
• Hyperon Weak Radiative Decay
• Polarization difference between hyperons and anti-hyperons induced by external magnetic field
• Measurement of {\boldmath $J/\psi \to \Xi (1530{)}^{-}{\bar{\Xi }}^{+}$} and evidence for the radiative decay {\boldmath $\Xi (1530{)}^{-}\to \gamma {\Xi }^{-}$}
• Constraining P and CP violation in the main decay of the neutral Sigma hyperon
• Search for the hyperon semileptonic decay ${\Xi }^{-}\to {\Xi }^0{e}^{-}\overline{{\nu }_e}$
• Probing new physics with the kaon decays $K\to \pi \pi /E$
• First measurement of $\Lambda N$ inelastic scattering with $\Lambda$ from $e^{+}{e}^{-}\to J/\psi \to \Lambda \bar{\Lambda }$
• Development of a Data-Driven Method to Simulate the Detector Response of Anti-neutron at BESIII
• Search for the lepton number violating decay ${\Sigma }^{-}\to p{e}^{-}{e}^{-}$ and the rare inclusive decay ${\Sigma }^{-}\to {\Sigma }^{+}X$
• Studying Two-body Nonleptonic Weak Decays of Hyperons with Topological Diagram Approach
• Study of the isospin breaking decay $\mathbf{Y}(2175)\to \mathbf{\varphi }{\mathbf{f}}_0(980)\to \mathbf{\varphi \eta }{\mathbf{\pi }}^0$ at BESIII
• Observation of the decay ${\chi }_{cJ}\to {\Omega }^{-}{\bar{\Omega }}^{+}$
• Semileptonic Decay of $D_s^{+}\to {\pi }^0{\ell }^{+}{\nu }_{\ell }$ Via Neutral Meson Mixing
• $\Delta$L=2 hyperon decays induced by Majorana neutrinos and doubly-charged scalars
• Decay rate and asymmetries of ${\Sigma }^{+}\to p{\mu }^{+}{\mu }^{-}$
• Study of $a_0^0(980)$-$f_0(980)$ mixing from $a_0(1450)\to a_0^0(980)f_0(500)\to {\pi }^{+}{\pi }^{-}{f}_0(500)$
• Resonant Majorana neutrino effects in $\Delta$L=2 four-body hyperon decays
• Measurements of the absolute branching fractions of ${\Omega }^{-}$ decays and test of the $\Delta I=1/2$ rule
• $\Delta S=2$ nonleptonic hyperon decays as probes of new physics
• ${\Sigma }^{+}\to p{\ell }^{+}{\ell }^{-}$ decays within the standard model and beyond
• Search for baryon and lepton number violating decays of ${\Xi }^0$ hyperons
• Testing B-violating signatures from Exotic Instantons in future colliders
• Study of Nonstandard Interactions in Rare Decays of Hyprons with Missing Energy
• New Physics Searches at Kaon and Hyperon Factories
• Search for hyperon $\Delta S=\Delta Q$ violating decay ${\Xi }^0\to {\Sigma }^{-}{e}^{+}{\nu }_e$
• The Strange Physics of Dark Baryons
• Measurements of the Absolute Branching Fraction of the Semileptonic Decay ${\mathbf{\Xi }}^{-}\to \mathbf{\Lambda }{\mathbf{e}}^{-}{\bar{\nu }}_{\mathbf{e}}$ and the Axial Charge of the ${\mathbf{\Xi }}^{-}$
• Observation of $\bar{\Lambda }p\to K^{+}{\pi }^{+}{\pi }^{-}{\pi }^0$ and $\bar{\Lambda }p\to K^{+}{\pi }^{+}{\pi }^{-}2{\pi }^0$