Cross section measurement of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:msup> <mml:mrow> <mml:mi>e</mml:mi> </mml:mrow> <mml:mrow> <mml:mo>+</mml:mo> </mml:mrow> </mml:msup> <mml:msup> <mml:mrow> <mml:m
Using data samples collected by the BESIII detector located at the Beijing Electron Positron Collider, the cross sections of the process <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"> <a:mrow> <a:msup> <a:mrow> <a:mi>e</a:mi> </a:mrow> <a:mrow> <a:mo>+</a:mo> </a:mrow> </a:msup> <a:msup> <a:mrow> <a:mi>e</a:mi> </a:mrow> <a:mrow> <a:mo>−</a:mo> </a:mrow> </a:msup> <a:mo stretchy="false">→</a:mo> <a:msub> <a:mrow> <a:mi>f</a:mi> </a:mrow> <a:mrow> <a:mn>1</a:mn> </a:mrow> </a:msub> <a:mo stretchy="false">(</a:mo> <a:mn>1285</a:mn> <a:mo stretchy="false">)</a:mo> <a:msup> <a:mrow> <a:mi>π</a:mi> </a:mrow> <a:mrow> <a:mo>+</a:mo> </a:mrow> </a:msup> <a:msup> <a:mrow> <a:mi>π</a:mi> </a:mrow> <a:mrow> <a:mo>−</a:mo> </a:mrow> </a:msup> </a:mrow> </a:math> are measured at 45 center-of-mass energies from 3.808 to 4.951 GeV. An investigation on the energy-dependent cross section is performed, and no significant structure is observed.
Authors
- Karl J. Friston
Institutions
- University of Science and Technology Liaoning (CN)
- Liaoning University (CN)
- Università degli Studi del Piemonte Orientale “Amedeo Avogadro” (IT)
- Uppsala University (SE)
- University of Science and Technology of China (CN)
- University of Hawaii System (US)
- Central South University (CN)
- Guangxi University (CN)
- Nanjing Normal University (CN)
- Liaoning Normal University (CN)
- North China Electric Power University (CN)
- Shandong University (CN)
- COMSATS University Islamabad (PK)
- Hangzhou Normal University (CN)
- Hunan University (CN)
- Henan University of Science and Technology (CN)
- University of Groningen (NL)
- GSI Helmholtz Centre for Heavy Ion Research (DE)
- University of the Punjab (PK)
- Hunan Normal University (CN)
- Henan University (CN)
- Shanghai Jiao Tong University (CN)
- Yantai University (CN)
- University of Tarapacá (CL)
- South China Normal University (CN)
- Yunnan University (CN)
- Jilin University (CN)
- Johannes Gutenberg University Mainz (DE)
- Justus-Liebig-Universität Gießen (DE)
- University of Ferrara (IT)
- Qufu Normal University (CN)
- Peking University (CN)
- Nankai University (CN)
- University of Münster (DE)
- Sichuan University (CN)
- Fudan University (CN)
- Inner Mongolia University (CN)
- University of Perugia (IT)
- Shandong Normal University (CN)
- University of Manchester (GB)
- Guangxi Normal University (CN)
- China University of Geosciences (CN)
- Huangshan University (CN)
- Joint Institute for Nuclear Research (RU)
- University of Jinan (CN)
- Henan University of Technology (CN)
- University of Bristol (GB)
- Wuhan University (CN)
- Zhengzhou University (CN)
- University of Oxford (GB)
- Central China Normal University (CN)
- National Centre for Nuclear Research (PL)
- Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara (IT)
- Helmholtz Institute Mainz (DE)
- Istinye University (TR)
- Institute of Modern Physics (CN)
- Jilin Medical University (CN)
- Shanxi University of Traditional Chinese Medicine (CN)
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati (IT)
- Piedmont University (US)
- Istituto Nazionale di Fisica Nucleare, Sezione di Perugia (IT)
- University of Chinese Academy of Sciences (CN)
- Hebei University (CN)
- Budker Institute of Nuclear Physics (RU)
- China Center of Advanced Science and Technology (CN)
- University of Turin (IT)
- Indiana University (US)
- Chung-Ang University (KR)
- Near East University (CY)
- Carnegie Mellon University (US)
- Henan Normal University (CN)
- Zhejiang University (CN)
- Lanzhou University (CN)
- Renmin University of China (CN)
- Suranaree University of Technology (TH)
- Beihang University (CN)
- Nanjing University (CN)
- Ruhr University Bochum (DE)
- University of South China (CN)
- Shanxi Normal University (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- Physical review. D/Physical review. D.
- Published
- 2025-11-08
- DOI
- https://doi.org/10.1103/567d-cv9k
- Primary Topic
- Quantum Chromodynamics and Particle Interactions
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Strong
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- University of Jinan
- CAS Center for Excellence in Particle Physics
- Institute of High Energy Physics