Oscillating features in the electromagnetic structure of the neutron

Standard

Oscillating features in the electromagnetic structure of the neutron. / BESIII Collaboration.

In: Nature Physics, Vol. 17, No. 11, 11.2021, p. 1200-1204.

Research output: Contribution to journal › Article › peer-review

Harvard

BESIII Collaboration 2021, 'Oscillating features in the electromagnetic structure of the neutron', Nature Physics, vol. 17, no. 11, pp. 1200-1204. https://doi.org/10.1038/s41567-021-01345-6

APA

BESIII Collaboration (2021). Oscillating features in the electromagnetic structure of the neutron. Nature Physics, 17(11), 1200-1204. https://doi.org/10.1038/s41567-021-01345-6

Vancouver

BESIII Collaboration. Oscillating features in the electromagnetic structure of the neutron. Nature Physics. 2021 Nov;17(11):1200-1204. doi: 10.1038/s41567-021-01345-6

Author

BESIII Collaboration. / Oscillating features in the electromagnetic structure of the neutron. In: Nature Physics. 2021 ; Vol. 17, No. 11. pp. 1200-1204.

BibTeX

@article{80781af0e87f484ca594e77d1dd3ffa7,

title = "Oscillating features in the electromagnetic structure of the neutron",

abstract = "The complicated structure of the neutron cannot be calculated using first-principles calculations due to the large colour charge of quarks and the self-interaction of gluons. Its simplest structure observables are the electromagnetic form factors1, which probe our understanding of the strong interaction. Until now, a small amount of data has been available for the determination of the neutron structure from the time-like kinematical range. Here we present measurements of the Born cross section of electron–positron annihilation reactions into a neutron and anti-neutron pair, and determine the neutron{\textquoteright}s effective form factor. The data were recorded with the BESIII experiment at centre-of-mass energies between 2.00 and 3.08 GeV using an integrated luminosity of 647.9 pb−1. Our results improve the statistics on the neutron form factor by more than a factor of 60 over previous measurements, demonstrating that the neutron form factor data from annihilation in the time-like regime is on par with that from electron scattering experiments. The effective form factor of the neutron shows a periodic behaviour, similar to earlier observations of the proton form factor. Future works—both theoretical and experimental—will help illuminate the origin of this oscillation of the electromagnetic structure observables of the nucleon.",

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 Q. An and Anita Lavania and Bai, {X. H.} and Y. Bai and O. Bakina and Ferroli, {R. B.} and I. Balossino and Y. Ban and K. Begzsuren and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and J. Biernat 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 Muchnoi, {N. Y.} and Nikolaev, {I. B.}",

note = "Publisher Copyright: {\textcopyright} 2021, The Author(s), under exclusive licence to Springer Nature Limited.",

year = "2021",

month = nov,

doi = "10.1038/s41567-021-01345-6",

language = "English",

volume = "17",

pages = "1200--1204",

journal = "Nature Physics",

issn = "1745-2473",

publisher = "Nature Publishing Group",

number = "11",

}

RIS

TY - JOUR

T1 - Oscillating features in the electromagnetic structure of the neutron

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, Q.

AU - Lavania, Anita

AU - Bai, X. H.

AU - Bai, Y.

AU - Bakina, O.

AU - Ferroli, R. B.

AU - Balossino, I.

AU - Ban, Y.

AU - Begzsuren, K.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Biernat, J.

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 - Muchnoi, N. Y.

AU - Nikolaev, I. B.

PY - 2021/11

Y1 - 2021/11

N2 - The complicated structure of the neutron cannot be calculated using first-principles calculations due to the large colour charge of quarks and the self-interaction of gluons. Its simplest structure observables are the electromagnetic form factors1, which probe our understanding of the strong interaction. Until now, a small amount of data has been available for the determination of the neutron structure from the time-like kinematical range. Here we present measurements of the Born cross section of electron–positron annihilation reactions into a neutron and anti-neutron pair, and determine the neutron’s effective form factor. The data were recorded with the BESIII experiment at centre-of-mass energies between 2.00 and 3.08 GeV using an integrated luminosity of 647.9 pb−1. Our results improve the statistics on the neutron form factor by more than a factor of 60 over previous measurements, demonstrating that the neutron form factor data from annihilation in the time-like regime is on par with that from electron scattering experiments. The effective form factor of the neutron shows a periodic behaviour, similar to earlier observations of the proton form factor. Future works—both theoretical and experimental—will help illuminate the origin of this oscillation of the electromagnetic structure observables of the nucleon.

AB - The complicated structure of the neutron cannot be calculated using first-principles calculations due to the large colour charge of quarks and the self-interaction of gluons. Its simplest structure observables are the electromagnetic form factors1, which probe our understanding of the strong interaction. Until now, a small amount of data has been available for the determination of the neutron structure from the time-like kinematical range. Here we present measurements of the Born cross section of electron–positron annihilation reactions into a neutron and anti-neutron pair, and determine the neutron’s effective form factor. The data were recorded with the BESIII experiment at centre-of-mass energies between 2.00 and 3.08 GeV using an integrated luminosity of 647.9 pb−1. Our results improve the statistics on the neutron form factor by more than a factor of 60 over previous measurements, demonstrating that the neutron form factor data from annihilation in the time-like regime is on par with that from electron scattering experiments. The effective form factor of the neutron shows a periodic behaviour, similar to earlier observations of the proton form factor. Future works—both theoretical and experimental—will help illuminate the origin of this oscillation of the electromagnetic structure observables of the nucleon.

UR - http://www.scopus.com/inward/record.url?scp=85118866080&partnerID=8YFLogxK

U2 - 10.1038/s41567-021-01345-6

DO - 10.1038/s41567-021-01345-6

M3 - Article

AN - SCOPUS:85118866080

VL - 17

SP - 1200

EP - 1204

JO - Nature Physics

JF - Nature Physics

SN - 1745-2473

IS - 11

ER -

ID: 34640820