Precision tests of fundamental physics with η and η′ mesons

L Gan, B Kubis, E Passemar, S Tulin - Physics Reports, 2022 - Elsevier
Decays of the neutral and long-lived η and η′ mesons provide a unique, flavor-conserving
laboratory to test low-energy Quantum Chromodynamics and search for new physics …

Electromagnetic transition form factors of baryon resonances

G Ramalho, MT Peña - Progress in Particle and Nuclear Physics, 2024 - Elsevier
Recent experimental and theoretical advancements have led to significant progress in our
understanding of the electromagnetic structure of nucleons (N), nucleon excitations (N∗) …

STCF conceptual design report (Volume 1): Physics & detector

M Achasov, XC Ai, LP An, R Aliberti, Q An, XZ Bai… - Frontiers of …, 2024 - Springer
The super τ-charm facility (STCF) is an electron–positron collider proposed by the Chinese
particle physics community. It is designed to operate in a center-of-mass energy range from …

Measurement of Energy-Dependent Pair-Production Cross Section and Electromagnetic Form Factors of a Charmed Baryon

M Ablikim, MN Achasov, P Adlarson, XC Ai, R Aliberti… - Physical Review Letters, 2023 - APS
We study the process e+ e-→ Λ c+ Λ¯ c-at twelve center-of-mass energies from 4.6119 to
4.9509 GeV using data samples collected by the BESIII detector at the BEPCII collider. The …

Observation of Three Charmoniumlike States with in

M Ablikim, MN Achasov, P Adlarson, R Aliberti… - Physical Review Letters, 2023 - APS
The Born cross sections of the process e+ e-→ D* 0 D*-π+ at center-of-mass energies from
4.189 to 4.951 GeV are measured for the first time. The data samples used correspond to an …

Measurement of the cross section from threshold to 3.00 GeV using events with initial-state radiation

M Ablikim, MN Achasov, P Adlarson, R Aliberti… - Physical Review D, 2023 - APS
Using initial-state radiation events from a total integrated luminosity of 11.957 fb-1 of e+ e-
collision data collected at center-of-mass energies between 3.773 and 4.258 GeV with the …

Measurement of cross section for near threshold at BESIII

M Ablikim, MN Achasov, P Adlarson, S Ahmed… - Physical Review D, 2021 - APS
The Born cross sections and effective form factors for process e+ e-→ Ξ-Ξ¯+ are measured
at eight center-of-mass energies between 2.644 and 3.080 GeV, using a total integrated …

Complete Measurement of the Electromagnetic Form Factors

M Ablikim, MN Achasov, P Adlarson, S Ahmed… - Physical review …, 2019 - APS
The exclusive process e+ e-→ Λ Λ¯, with Λ→ p π-and Λ¯→ p¯ π+, has been studied at s=
2.396 GeV for measurement of the timelike Λ electric and magnetic form factors, GE and GM …

Precision Measurement of the Cross Section Near Threshold

M Ablikim, MN Achasov, S Ahmed, M Albrecht… - Physical review …, 2018 - APS
The cross section of the e+ e-→ Λ c+ Λ¯ c-process is measured with unprecedented
precision using data collected with the BESIII detector at s= 4574.5, 4580.0, 4590.0 and …

Strange molecular partners of the and

Z Yang, X Cao, FK Guo, J Nieves, MP Valderrama - Physical Review D, 2021 - APS
Quantum chromodynamics presents a series of exact and approximate symmetries which
can be exploited to predict new hadrons from previously known ones. The Z c (3900) and Z c …