Observation of a Charged Charmoniumlike Structure in e⁺e⁻ → (D*D̅*)^± π^∓ at √s=4.26 GeV
| dc.contributor.author | Ablikim, M. | en_US |
| dc.contributor.author | Achasov, M. N. | en_US |
| dc.contributor.author | Albayrak, O. | en_US |
| dc.contributor.author | Ambrose, D. J. | en_US |
| dc.contributor.author | An, F. F. | en_US |
| dc.contributor.author | An, Q. | en_US |
| dc.contributor.author | Bai, J. Z. | en_US |
| dc.contributor.author | Lou, Xinchou | en_US |
| dc.contributor.utdAuthor | Lou, Xinchou | en_US |
| dc.date.accessioned | 2014-10-01T20:27:24Z | |
| dc.date.available | 2014-10-01T20:27:24Z | |
| dc.date.created | 2014-04-02 | en_US |
| dc.date.issued | 2014-04-02 | en_US |
| dc.description.abstract | We study the process e⁺e⁻ → (D*D̅*)^± π^∓ at a center-of-mass energy of 4.26 GeV using a 827 pb⁻¹ data sample obtained with the BESIII detector at the Beijing Electron Positron Collider. Based on a partial reconstruction technique, the Born cross section is measured to be (137 ± 9 ± 15) pb. We observe a structure near the (D*D̅*)^± threshold in the π^∓ recoil mass spectrum, which we denote as the Z_c ^±(4025). The measured mass and width of the structure are (4026.3 ± 2.6 ± 3.7) MeV/c² and (24.8 ± 5.6 ± 7.7) MeV, respectively. Its production ratio σ(e⁺ e⁻ → Z_c ^±(4025)π^∓ → (D*D̅*)^± π^∓ / σ(e⁺ e⁻ → ((D*D̅*)^± π^∓ is determined to be 0.65 ± 0.09 ± 0.06. The first uncertainties are statistical and the second are systematic. | en_US |
| dc.identifier.bibliographicCitation | Ablikim, M., M. N. Achasov, O. Albayrak, D. J. Ambrose, et al. 2014. "Observation of a charged charmoniumlike structure in e⁺e⁻ → (D*D̅*)^± π^ at √s=4.26 GeV." Physical Review Letters 112(13), doi:10.1103/PhysRevLett.112.132001 | en_US |
| dc.identifier.issn | 0031-9007 | en_US |
| dc.identifier.issue | 13 | en_US |
| dc.identifier.uri | http://hdl.handle.net/10735.1/4043 | |
| dc.identifier.volume | 112 | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.relation.uri | http://dx.doi.org/10.1103/PhysRevLett.112.132001 | |
| dc.rights | ©2014 American Physical Society | en_US |
| dc.source | Physical Review Letters | |
| dc.subject | Atomic mass | en_US |
| dc.subject | Phase space (PHSP) | en_US |
| dc.title | Observation of a Charged Charmoniumlike Structure in e⁺e⁻ → (D*D̅*)^± π^∓ at √s=4.26 GeV | en_US |
| dc.type.genre | Article | en_US |