Standard

Observation of a cross-section enhancement near mass threshold in e + e - → Λ Λ. / The BESIII Collaboration.

в: Physical Review D, Том 97, № 3, 032013, 01.02.2018.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Harvard

The BESIII Collaboration 2018, 'Observation of a cross-section enhancement near mass threshold in e + e - → Λ Λ', Physical Review D, Том. 97, № 3, 032013. https://doi.org/10.1103/PhysRevD.97.032013

APA

The BESIII Collaboration (2018). Observation of a cross-section enhancement near mass threshold in e + e - → Λ Λ. Physical Review D, 97(3), [032013]. https://doi.org/10.1103/PhysRevD.97.032013

Vancouver

The BESIII Collaboration. Observation of a cross-section enhancement near mass threshold in e + e - → Λ Λ. Physical Review D. 2018 февр. 1;97(3):032013. doi: 10.1103/PhysRevD.97.032013

Author

The BESIII Collaboration. / Observation of a cross-section enhancement near mass threshold in e + e - → Λ Λ. в: Physical Review D. 2018 ; Том 97, № 3.

BibTeX

@article{78b811e9075144529b6898b5858e9436,
title = "Observation of a cross-section enhancement near mass threshold in e + e - → Λ Λ",
abstract = "The process e+e-→ΛΛ is studied using data samples at s=2.2324, 2.400, 2.800 and 3.080 GeV collected with the BESIII detector operating at the BEPCII collider. The Born cross section is measured at s=2.2324 GeV, which is 1.0 MeV above the ΛΛ mass threshold, to be 305±45-36+66 pb, where the first uncertainty is statistical and the second systematic. The cross section near threshold is larger than that expected from theory, which predicts the cross section to vanish at threshold. The Born cross sections at s=2.400, 2.800 and 3.080 GeV are measured and found to be consistent with previous experimental results, but with improved precision. Finally, the corresponding effective electromagnetic form factors of Λ are deduced.",
keywords = "TIME-LIKE REGION, ELECTROMAGNETIC FORM-FACTORS, NEAR-THRESHOLD, P(P)OVER-BAR, BESIII, PROTON",
author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and S. Ahmed and Ai, {X. C.} and O. AlbayraK and M. Albrecht and Ambrose, {D. J.} and A. Amoroso and An, {F. F.} and Q. An and Bai, {J. Z.} and O. Bakina and {Baldini Ferroli}, R. and Y. Ban and Bennett, {D. W.} and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and Bian, {J. M.} and F. Bianchi and E. Boger and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and O. Cakir and A. Calcaterra and Cao, {G. F.} and Cetin, {S. A.} and J. Chai and Chang, {J. F.} and G. Chelkov and G. Chen and Chen, {H. S.} and Chen, {J. C.} and Chen, {M. L.} and S. Chen and Chen, {S. J.} and X. Chen and Chen, {X. R.} and Chen, {Y. B.} and Chu, {X. K.} and G. Cibinetto and Dai, {H. L.} and Dai, {J. P.} and A. Dbeyssi and D. Dedovich and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",
note = "Publisher Copyright: {\textcopyright} 2018 authors.",
year = "2018",
month = feb,
day = "1",
doi = "10.1103/PhysRevD.97.032013",
language = "English",
volume = "97",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "AMER PHYSICAL SOC",
number = "3",

}

RIS

TY - JOUR

T1 - Observation of a cross-section enhancement near mass threshold in e + e - → Λ Λ

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ahmed, S.

AU - Ai, X. C.

AU - AlbayraK, O.

AU - Albrecht, M.

AU - Ambrose, D. J.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Bennett, D. W.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bian, J. M.

AU - Bianchi, F.

AU - Boger, E.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Cakir, O.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cetin, S. A.

AU - Chai, J.

AU - Chang, J. F.

AU - Chelkov, G.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, S.

AU - Chen, S. J.

AU - Chen, X.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Chu, X. K.

AU - Cibinetto, G.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dbeyssi, A.

AU - Dedovich, D.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

N1 - Publisher Copyright: © 2018 authors.

PY - 2018/2/1

Y1 - 2018/2/1

N2 - The process e+e-→ΛΛ is studied using data samples at s=2.2324, 2.400, 2.800 and 3.080 GeV collected with the BESIII detector operating at the BEPCII collider. The Born cross section is measured at s=2.2324 GeV, which is 1.0 MeV above the ΛΛ mass threshold, to be 305±45-36+66 pb, where the first uncertainty is statistical and the second systematic. The cross section near threshold is larger than that expected from theory, which predicts the cross section to vanish at threshold. The Born cross sections at s=2.400, 2.800 and 3.080 GeV are measured and found to be consistent with previous experimental results, but with improved precision. Finally, the corresponding effective electromagnetic form factors of Λ are deduced.

AB - The process e+e-→ΛΛ is studied using data samples at s=2.2324, 2.400, 2.800 and 3.080 GeV collected with the BESIII detector operating at the BEPCII collider. The Born cross section is measured at s=2.2324 GeV, which is 1.0 MeV above the ΛΛ mass threshold, to be 305±45-36+66 pb, where the first uncertainty is statistical and the second systematic. The cross section near threshold is larger than that expected from theory, which predicts the cross section to vanish at threshold. The Born cross sections at s=2.400, 2.800 and 3.080 GeV are measured and found to be consistent with previous experimental results, but with improved precision. Finally, the corresponding effective electromagnetic form factors of Λ are deduced.

KW - TIME-LIKE REGION

KW - ELECTROMAGNETIC FORM-FACTORS

KW - NEAR-THRESHOLD

KW - P(P)OVER-BAR

KW - BESIII

KW - PROTON

UR - http://www.scopus.com/inward/record.url?scp=85043361468&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.97.032013

DO - 10.1103/PhysRevD.97.032013

M3 - Article

AN - SCOPUS:85043361468

VL - 97

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 3

M1 - 032013

ER -

ID: 26154010