First measurement of $\Lambda N$ inelastic scattering with $\Lambda$ from $e^{+}{e}^{-}\to J/\psi \to \Lambda \bar{\Lambda }$

Abstract

Using an $e^{+}{e}^{-}$ collision data sample of $(10087\pm 44)\times 10^{6}J/\psi$ events taken at the center-of-mass energy of $3.097\mathrm{GeV}$ by the BESIII detector at the BEPCII collider, the process $\Lambda +N\to {\Sigma }^{+}+X$ is studied for the first time employing a novel method. The ${\Sigma }^{+}$ hyperons are produced by the collisions of $\Lambda$ hyperons from $J/\psi$ decays with nuclei in the material of the BESIII detector. The total cross section of $\Lambda {+}^9\mathrm{Be}\to {\Sigma }^{+}+X$ is measured to be $\sigma =(37.3\pm 4.7\pm 3.5)\mathrm{mb}$ at $\Lambda$ beam momenta within $[1.057,1.091]\mathrm{GeV}/c$, where the uncertainties are statistical and systematic, respectively. This analysis is the first study of $\Lambda$-nucleon interactions at an $e^{+}{e}^{-}$ collider, providing information and constraints relevant for the strong-interaction potential, the origin of color confinement, the unified model for baryon-baryon interactions, and the internal structure of neutron stars.

References in corpus (36)

• GW170817: Measurements of Neutron Star Radii and Equation of State
• Neutron Star Structure and the Equation of State
• Design and Construction of the BESIII Detector
• Nuclear Force from Lattice QCD
• Strangeness in nuclear physics
• Hyperon Puzzle: Hints from Quantum Monte Carlo Calculations
• Hyperon-nucleon interaction at next-to-leading order in chiral effective field theory
• Hadron-Hadron Interactions from Imaginary-time Nambu-Bethe-Salpeter Wave Function on the Lattice
• Hyperon-nucleon interactions - a chiral effective field theory approach
• Strangeness in Nuclei and Neutron Stars
• STCF Conceptual Design Report: Volume 1 -- Physics & Detector
• Baryon-baryon interactions in the SU6 quark model and their applications to light nuclear systems
• The Juelich hyperon-nucleon model revisited
• Method for detector description transformation to Unity and application in BESIII
• Nuclear Physics from Lattice QCD
• Branching fraction measurements of χ_{c0} and χ_{c2} to π^0π^0 and ηη
• Hyperon-Nucleon Scattering from Fully-Dynamical Lattice QCD
• Hyperon-nucleon interaction within chiral effective field theory revisited
• Number of $J/\psi$ events at BESIII
• Strangeness S=-2 baryon-baryon interaction at next-to-leading order in chiral effective field theory
• Precise Measurements of Decay Parameters and $CP$ Asymmetry with Entangled $\Lambda -\bar{\Lambda }$ Pairs
• Measurement of the Xi-p Scattering Cross Sections at Low Energy
• Prospects for rare and forbidden hyperon decays at BESIII
• Hyperons: the strange ingredients of the nuclear equation of state
• Leading order relativistic hyperon-nucleon interactions in chiral effective field theory
• Hyperon-nucleon interaction in chiral effective field theory at next-to-next-to-leading order
• In-medium properties of a $\Xi N$ interaction derived from chiral effective field theory
• Strangeness $S=-1$ hyperon-nucleon scattering in covariant chiral effective field theory
• First measurement of the $\Lambda$-$\Xi$ interaction in proton-proton collisions at the LHC
• Coherent Exclusive Exponentiation for Precision Monte Carlo Calculations
• First study of reaction ${\Xi }^{0}n\to {\Xi }^{-}p$ using ${\Xi }^0$-nucleus scattering at an electron-positron collider
• A cornucopia of antineutrons and hyperons from super J/psi factory for next-generation nuclear and particle physics high-precision experiments
• Low-momentum Hyperon-Nucleon Interactions
• Optical model potential analysis of $\bar{n}A$ and $nA$ interactions
• Prospects to study hyperon-nucleon interactions at BESIII
• Search for the hyperon semileptonic decay ${\Xi }^{-}\to {\Xi }^0{e}^{-}\overline{{\nu }_e}$

Cited by in corpus (4)

• Prospects to study hyperon-nucleon interactions at BESIII
• Understanding of the BESIII measurement of (anti)hyperon-nucleon scattering
• First measurement of ${\Sigma }^{+}n\to \Lambda p$ and ${\Sigma }^{+}n\to {\Sigma }^{0}p$ cross sections via ${\Sigma }^{+}$-nucleus scattering at an electron-positron collider
• Observation of $\bar{\Lambda }p\to K^{+}{\pi }^{+}{\pi }^{-}{\pi }^0$ and $\bar{\Lambda }p\to K^{+}{\pi }^{+}{\pi }^{-}2{\pi }^0$