Measurement of A baryon polarization in e(+) e(-) -> Lambda(Lambda)over-bar at root s=3.773 GeV
| dc.authorid | Onur Buğra Kolcu / 0000-0002-9177-1286 | |
| dc.authorid | Serkant Ali Çetin / 0000-0001-5050-8441 | |
| dc.authorwosid | Onur Buğra Kolcu / P-4990-2015 | |
| dc.contributor.author | Ablikim, M. | |
| dc.contributor.author | Achasov, M. N. | |
| dc.contributor.author | Adlarson, P. | |
| dc.contributor.author | Ahmed, S. | |
| dc.contributor.author | Albrecht, M. | |
| dc.contributor.author | Çetin, Serkant Ali | |
| dc.contributor.author | Kolcu, Onur Buğra | |
| dc.date.accessioned | 2022-02-07T09:59:35Z | |
| dc.date.available | 2022-02-07T09:59:35Z | |
| dc.date.issued | 2022 | en_US |
| dc.department | İstinye Üniversitesi | en_US |
| dc.description.abstract | Using a data sample of psi(3770) events collected with the BESIII detector at BEPCII corresponding to an integrated luminosity of 2.9 fb-1, we report a measurement of A spin polarization in e+ e- -> Lambda(Lambda) over bar at = root s = 3.773 GeV. The significance of polarization is found to be 2 sigma including the systematic uncertainty, which implies a zero phase between the transition amplitudes of the Lambda(Lambda) over bar helicity states. This phase can be interpreted in terms of psionic form factors, and is determined to be Delta Phi(Psi) = Phi(Psi)(E) - Phi(Psi)(M) = (71(-46)(+66) +/- 5)degrees. Similarly, the ratio between the form factors is found to be R-psi = vertical bar G(E)(Psi)/G(M)(Psi)vertical bar = 0.48(-0.35)(+0.21) +/- 0.03. The first uncertainties are statistical and the second systematic. | en_US |
| dc.identifier.citation | Ablikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., ... & Koch, L. (2022). Measurement of Λ baryon polarization in e+ e−→ Λ Λ¯ at s= 3.773 GeV. Physical Review D, 105(1), L011101. | en_US |
| dc.identifier.doi | 10.1103/PhysRevD.105.L011101 | en_US |
| dc.identifier.issn | 2470-0010 | en_US |
| dc.identifier.issn | 2470-0029 | en_US |
| dc.identifier.issue | 1 | en_US |
| dc.identifier.uri | https://doi.org/10.1103/PhysRevD.105.L011101 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12713/2468 | |
| dc.identifier.volume | 105 | en_US |
| dc.identifier.wos | WOS:000747172300006 | en_US |
| dc.identifier.wosquality | Q1 | en_US |
| dc.indekslendigikaynak | Web of Science | en_US |
| dc.institutionauthor | Çetin, Serkant Ali | |
| dc.institutionauthor | Kolcu, Onur Buğra | |
| dc.language.iso | en | en_US |
| dc.publisher | AMER PHYSICAL SOC | en_US |
| dc.relation.ispartof | PHYSICAL REVIEW D | en_US |
| dc.relation.publicationcategory | Diğer | en_US |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.subject | J/PSI | en_US |
| dc.title | Measurement of A baryon polarization in e(+) e(-) -> Lambda(Lambda)over-bar at root s=3.773 GeV | en_US |
| dc.type | Review Article | en_US |
