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Journal ArticleDOI

Tuning and Validation of the Lundcharm Model with J/ψ Decays

TLDR
In this article, the dependence of the response function on model parameters is approximated up to the quadratic term, and the model parameters are optimized by simultaneously fitting J/ψ inclusive charged track distributions and event shapes.
Abstract
Using J/ψ decays collected with the BES III detector, Lundcharm model parameters are optimized with J/ψ light hadron decays. The dependence of the response function on model parameters is approximated up to the quadratic term, and the model parameters are optimized by simultaneously fitting J/ψ inclusive charged track distributions and event shapes. The Monte Carlo simulations show that optimal parameters yield satisfactory MC distributions as compared to both the J/ψ and ψ(2S) data distributions. These optimal values are suggested for the Lundcharm model to produce J/ψ and ψ(2S) decays to light hadrons.

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Citations
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Journal ArticleDOI

Polarization and Entanglement in Baryon-Antibaryon Pair Production in Electron-Positron Annihilation

M. Ablikim, +466 more
- 27 Aug 2018 - 
TL;DR: In this paper, the authors reported the measurement of ΔΦ = 42.4 ± 0.5° using Λ→πππ$^{−}$ and Λ ≥ 0.004, a precise direct test of charge parity symmetry violation in Λ decays.
Journal ArticleDOI

Cross section measurements of e + e − → ω χ c 0 from √ s = 4.178 to 4.278 GeV

M. Ablikim, +476 more
- 06 Mar 2019 - 
TL;DR: In this paper, the angular distribution of the e+e-→χc0 process is extracted for the first time, and the dependence of the cross section on s shows a resonant structure with mass of (4218.5±1.6(stat)±4.0(syst))
Journal ArticleDOI

Observation of the Semileptonic D + Decay into the K ̄ 1 (1270 ) 0 Axial-Vector Meson

M. Ablikim, +480 more
TL;DR: In this article, a 2.93 fb(-1) data sample of e(+)e(-) collisions, recorded at a center-of-mass energy of 3.773 GeV with the BESIII detector operated at the BEPCII collider, was analyzed.
Journal ArticleDOI

Number of J/ψ events at BESIII

Hongxun Yang
- 10 Mar 2022 - 
TL;DR: In this article , the number of J/ψ events collected with the BESIII detector was determined to be (10087±44)×10^6, where the uncertainty is dominated by systematic effects and the statistical uncertainty is negligible.
Journal ArticleDOI

Observation of the Leptonic Decay D+ →τ+ντ

M. Ablikim, +480 more
TL;DR: Values for the D^{+} decay constant f_{D^{+}} and the Cabibbo-Kobayashi-Maskawa matrix element |V_{cd}| that are consistent with, but less precise than, other determinations are given.
References
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Journal ArticleDOI

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Journal ArticleDOI

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Journal ArticleDOI

High-energy-physics event generation with PYTHIA 5.7 and JETSET 7.4

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Journal ArticleDOI

Event generator for J / psi and psi (2S) decay

TL;DR: In this paper, a Monte Carlo generator was developed for simulating charmonium $J/\ensuremath{psi}$ and √ n 2S$ inclusive decay.
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