Observation of a cross-section enhancement near mass threshold in

M Ablikim, MN Achasov, S Ahmed, XC Ai, O Albayrak… - Physical Review D, 2018 - APS
The process e+ e-→ Λ Λ¯ is studied using data samples at s= 2.2324, 2.400, 2.800 and
3.080 GeV collected with the BESIII detector operating at the BEPCII collider. The Born cross …

exchange in the one-boson exchange model involving the ground state octet baryons

B Wu, XH Cao, XK Dong, FK Guo - Physical Review D, 2024 - APS
Based on the one-boson-exchange framework that the σ meson serves as an effective
parametrization for the correlated scalar-isoscalar π π interaction, we calculate the coupling …

Observation of a Resonant Structure in

M Ablikim, MN Achasov, P Adlarson, S Ahmed… - Physical review …, 2020 - APS
A partial-wave analysis is performed for the process e+ e-→ K+ K-π 0 π 0 at the center-of-
mass energies ranging from 2.000 to 2.644 GeV. The data samples of e+ e-collisions …

Observation of a resonant structure in e+ e−→ ωη and another in e+ e−→ ωπ0 at center-of-mass energies between 2.00 and 3.08 GeV

M Ablikim, MN Achasov, P Adlarson, S Ahmed… - Physics Letters B, 2021 - Elsevier
Born cross sections for the processes e+ e−→ ω η and e+ e−→ ω π 0 have been determined
for center-of-mass energies between 2.00 and 3.08 GeV with the BESIII detector at the …

Study of the process at center-of-mass energies between 2.00 and 3.08 GeV

M Ablikim, MN Achasov, P Adlarson, S Ahmed… - Physical Review D, 2021 - APS
The process e+ e-→ ϕ η is studied at 22 center-of-mass energy points (s) between 2.00 and
3.08 GeV using 715 pb-1 of data collected with the BESIII detector. The measured Born …

Possible partner state of the

HX Chen, CP Shen, SL Zhu - Physical Review D, 2018 - APS
We study the Y (2175) using the method of QCD sum rules. There are two independent sss¯
s¯ interpolating currents with JPC= 1--, and we calculate both their diagonal and their off …

Observation of a near-threshold enhancement in the mass spectrum from at from 3.51 to 4.60 GeV

M Ablikim, MN Achasov, P Adlarson, S Ahmed… - Physical Review D, 2021 - APS
The process e+ e-→ ϕ Λ Λ¯ is studied using data samples collected with the BESIII detector
at the BEPCII Collider at center of mass energies s ranging from 3.51 GeV to 4.60 GeV. An …

[HTML][HTML] Nucleon resonance parameters from Roy–Steiner equations

M Hoferichter, JR de Elvira, B Kubis, UG Meißner - Physics Letters B, 2024 - Elsevier
A reliable determination of the pole parameters and residues of nucleon resonances is
notoriously challenging, given the required analytic continuation into the complex plane. We …

- and -wave fully strange tetraquark states from QCD sum rules

N Su, HX Chen - Physical Review D, 2022 - APS
We apply the QCD sum rule method to systematically study the S-and P-wave fully strange
tetraquark states within the diquark-antidiquark picture. We systematically construct their …

Mass spectrum and strong decays of strangeonium in a constituent quark model

Q Li, LC Gui, MS Liu, QF Lü, XH Zhong - Chinese Physics C, 2021 - iopscience.iop.org
In this work we calculate the mass spectrum of strangeonium up to the multiplet within a
nonrelativistic linear potential quark model. Furthermore, using the obtained wave functions …