Measurement of proton electromagnetic form factors in the time-like region using initial state radiation at BESIII

BESIII Collaboration

doi:10.1016/j.physletb.2021.136328

Measurement of proton electromagnetic form factors in the time-like region using initial state radiation at BESIII

BESIII Collaboration

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

The electromagnetic process e⁺e⁻→pp¯ is studied with the initial-state-radiation technique using 7.5 fb⁻¹ of data collected by the BESIII experiment at seven energy points from 3.773 to 4.600 GeV. The Born cross section and the effective form factor of the proton are measured from the production threshold to 3.0 GeV/c² using the pp¯ invariant-mass spectrum. The ratio of electric and magnetic form factors of the proton is determined from the analysis of the proton-helicity angular distribution.

Lingua originale	Inglese
Numero di articolo	136328
Rivista	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	817
DOI	https://doi.org/10.1016/j.physletb.2021.136328
Stato di pubblicazione	Pubblicato - 10 giu 2021
Pubblicato esternamente	Sì

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10.1016/j.physletb.2021.136328

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@article{c7de050f7e2d47a7bc480bad68682e61,

title = "Measurement of proton electromagnetic form factors in the time-like region using initial state radiation at BESIII",

abstract = "The electromagnetic process e+e−→pp¯ is studied with the initial-state-radiation technique using 7.5 fb−1 of data collected by the BESIII experiment at seven energy points from 3.773 to 4.600 GeV. The Born cross section and the effective form factor of the proton are measured from the production threshold to 3.0 GeV/c2 using the pp¯ invariant-mass spectrum. The ratio of electric and magnetic form factors of the proton is determined from the analysis of the proton-helicity angular distribution.",

keywords = "BESIII, Electromagnetic form factors, Initial state radiation, Proton",

author = "\{BESIII Collaboration\} and M. Ablikim and Achasov, \{M. N.\} and P. Adlarson and S. Ahmed and M. Albrecht and R. Aliberti and A. Amoroso and An, \{M. R.\} and Q. An and Bai, \{X. H.\} and Y. Bai and O. Bakina and \{Baldini Ferroli\}, R. and I. Balossino and Y. Ban and K. Begzsuren and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and J. Bloms and A. Bortone and I. Boyko and Briere, \{R. A.\} and H. Cai and X. Cai and A. Calcaterra and Cao, \{G. F.\} and N. Cao and Cetin, \{S. A.\} and Chang, \{J. F.\} and Chang, \{W. L.\} and G. Chelkov and Chen, \{D. Y.\} and G. Chen and Chen, \{H. S.\} and Chen, \{M. L.\} and Chen, \{S. J.\} and Chen, \{X. R.\} and Chen, \{Y. B.\} and Chen, \{Z. J.\} and Cheng, \{W. S.\} and G. Cibinetto and F. Cossio and Cui, \{X. F.\} and Dai, \{H. L.\} and Dai, \{X. C.\} and A. Dbeyssi and \{de Boer\}, \{R. E.\} and D. Dedovich",

note = "Publisher Copyright: {\textcopyright} 2021 The Author",

year = "2021",

month = jun,

day = "10",

doi = "10.1016/j.physletb.2021.136328",

language = "English",

volume = "817",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Measurement of proton electromagnetic form factors in the time-like region using initial state radiation at BESIII

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Adlarson, P.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Aliberti, R.

AU - Amoroso, A.

AU - An, M. R.

AU - An, Q.

AU - Bai, X. H.

AU - Bai, Y.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Balossino, I.

AU - Ban, Y.

AU - Begzsuren, K.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Bloms, J.

AU - Bortone, A.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cao, N.

AU - Cetin, S. A.

AU - Chang, J. F.

AU - Chang, W. L.

AU - Chelkov, G.

AU - Chen, D. Y.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Chen, Z. J.

AU - Cheng, W. S.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Cui, X. F.

AU - Dai, H. L.

AU - Dai, X. C.

AU - Dbeyssi, A.

AU - de Boer, R. E.

AU - Dedovich, D.

PY - 2021/6/10

Y1 - 2021/6/10

N2 - The electromagnetic process e+e−→pp¯ is studied with the initial-state-radiation technique using 7.5 fb−1 of data collected by the BESIII experiment at seven energy points from 3.773 to 4.600 GeV. The Born cross section and the effective form factor of the proton are measured from the production threshold to 3.0 GeV/c2 using the pp¯ invariant-mass spectrum. The ratio of electric and magnetic form factors of the proton is determined from the analysis of the proton-helicity angular distribution.

AB - The electromagnetic process e+e−→pp¯ is studied with the initial-state-radiation technique using 7.5 fb−1 of data collected by the BESIII experiment at seven energy points from 3.773 to 4.600 GeV. The Born cross section and the effective form factor of the proton are measured from the production threshold to 3.0 GeV/c2 using the pp¯ invariant-mass spectrum. The ratio of electric and magnetic form factors of the proton is determined from the analysis of the proton-helicity angular distribution.

KW - BESIII

KW - Electromagnetic form factors

KW - Initial state radiation

KW - Proton

UR - https://www.scopus.com/pages/publications/85109134227

U2 - 10.1016/j.physletb.2021.136328

DO - 10.1016/j.physletb.2021.136328

M3 - Article

SN - 0370-2693

VL - 817

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 136328

ER -

Measurement of proton electromagnetic form factors in the time-like region using initial state radiation at BESIII

Abstract

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