Measurement of the cross sections for e+e−→ pn̅π− at center of mass energies from 3.510 to 4.946 GeV
Abstract
Using a data sample corresponding to an integrated luminosity of 43.8~fb−1 collected with the \mbox{BESIII} detector at 44 center-of-mass energy points between 3.510 and 4.946~GeV, the Born cross sections for the process e+e- → p n̅ π- and its charge-conjugated process are measured. The energy dependence of the dressed cross sections is investigated to search for possible contributions from vector charmonium and charmonium-like states. No evidence for contributions from the ψ(3770), Y(4230), Y(4360), ψ(4415), Y(4500), or Y(4710) resonances is observed. The upper limits at the 90\% confidence level are determined for the products of the electronic partial widths and the branching fractions for the decays of these resonances into the p n̅ π- + c.c. final state.
Related
- Measurement of the cross sections of e+e-→ KS0Ξ̅0Λ/Σ0 + c.c. at center-of-mass energies between 3.510 and 4.951 GeV
- Precise Measurement of the Inclusive Cross Sections of Open-Charm Mesons at Energies from 3.80 to 4.95 GeV
- Measurement of tZq inclusive and differential cross-sections in pp collisions at √s = 13 TeV with the ATLAS detector
- Measurement of the forward angle 12C+12C fragmentation differential cross sections at 62 MeV/nucleon
- First Measurement of Differential Cross Sections in Kinematic Imbalance Variables with Electron Neutrino Interactions Using the MicroBooNE Detector
BibTeX
@misc{collaboration2026measurement,
title = {{Measurement of the cross sections for $e^+e^-\to p\barnπ^-$ at center of mass energies from 3.510 to 4.946 GeV}},
author = {BESIII Collaboration and M. Ablikim and M. N. Achasov and P. Adlarson and X. C. Ai and C. S. Akondi and R. Aliberti and A. Amoroso and Q. An and Y. H. An and M. S. Anderson and Y. Bai and O. Bakina and H. R. Bao and X. L. Bao and M. Barbagiovanni and V. Batozskaya and K. Begzsuren and N. Berger and M. Berlowski and M. B. Bertani and D. Bettoni and F. Bianchi and E. Bianco and A. Bortone and I. Boyko and R. A. Briere and A. Brueggemann and D. Cabiati and H. Cai and M. H. Cai and X. Cai and A. Calcaterra and G. F. Cao and N. Cao and S. A. Cetin and X. Y. Chai and J. F. Chang and T. T. Chang and G. R. Che and Y. Z. Che and C. H. Chen and Chao Chen and G. Chen and H. S. Chen and H. Y. Chen and M. L. Chen and S. J. Chen and S. M. Chen and T. Chen and W. Chen and X. R. Chen and X. T. Chen and X. Y. Chen and Y. B. Chen and Y. Q. Chen and Z. K. Chen and J. Cheng and L. N. Cheng and S. K. Choi},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.15451},
eprint = {2610.15451},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.15451},
}
RIS
TY - UNPB
TI - Measurement of the cross sections for e^+e^−→ pn̅π^− at center of mass energies from 3.510 to 4.946 GeV
AU - BESIII Collaboration
AU - M. Ablikim
AU - M. N. Achasov
AU - P. Adlarson
AU - X. C. Ai
AU - C. S. Akondi
AU - R. Aliberti
AU - A. Amoroso
AU - Q. An
AU - Y. H. An
AU - M. S. Anderson
AU - Y. Bai
AU - O. Bakina
AU - H. R. Bao
AU - X. L. Bao
AU - M. Barbagiovanni
AU - V. Batozskaya
AU - K. Begzsuren
AU - N. Berger
AU - M. Berlowski
AU - M. B. Bertani
AU - D. Bettoni
AU - F. Bianchi
AU - E. Bianco
AU - A. Bortone
AU - I. Boyko
AU - R. A. Briere
AU - A. Brueggemann
AU - D. Cabiati
AU - H. Cai
AU - M. H. Cai
AU - X. Cai
AU - A. Calcaterra
AU - G. F. Cao
AU - N. Cao
AU - S. A. Cetin
AU - X. Y. Chai
AU - J. F. Chang
AU - T. T. Chang
AU - G. R. Che
AU - Y. Z. Che
AU - C. H. Chen
AU - Chao Chen
AU - G. Chen
AU - H. S. Chen
AU - H. Y. Chen
AU - M. L. Chen
AU - S. J. Chen
AU - S. M. Chen
AU - T. Chen
AU - W. Chen
AU - X. R. Chen
AU - X. T. Chen
AU - X. Y. Chen
AU - Y. B. Chen
AU - Y. Q. Chen
AU - Z. K. Chen
AU - J. Cheng
AU - L. N. Cheng
AU - S. K. Choi
PY - 2026
DA - 2026/10/11
PB - arXiv
DO - 10.48550/arxiv.2610.15451
UR - https://arxiv.org/abs/2610.15451
AB - Using a data sample corresponding to an integrated luminosity of 43.8~fb^−1 collected with the \mbox{BESIII} detector at 44 center-of-mass energy points between 3.510 and 4.946~GeV, the Born cross sections for the process e^+e^- → p n̅ π^- and its charge-conjugated process are measured. The energy dependence of the dressed cross sections is investigated to search for possible contributions from vector charmonium and charmonium-like states. No evidence for contributions from the ψ(3770), Y(4230), Y(4360), ψ(4415), Y(4500), or Y(4710) resonances is observed. The upper limits at the 90\% confidence level are determined for the products of the electronic partial widths and the branching fractions for the decays of these resonances into the p n̅ π^- + c.c. final state.
ER -