000 02315nab a2200325 c 4500
001 vtls000533199
003 RU-ToGU
005 20210907014314.0
007 cr |
008 181202|2015 xxu s a eng dd
024 7 _a10.1103/PhysRevLett.115.222002
_2doi
035 _ato000533199
040 _aRU-ToGU
_brus
_cRU-ToGU
245 1 0 _aObservation of a neutral structure near the DD* mass threshold in e+e− → (DD*)0π0 at √s = 4.226 and 4.257 GeV
_cM. Ablikim, M. N. Achasov, X. C. Ai [et.al.]
520 3 _aA neutral structure in the DD∗ system around the DD∗ mass threshold is observed with a statistical significance greater than 10σ in the processes e+e−→D+D*−π0+c.c. and e+e−→D0D*0π0+c.c. at s√=4.226 and 4.257 GeV in the BESIII experiment. The structure is denoted as Zc(3885)0. Assuming the presence of a resonance, its pole mass and width are determined to be [3885.7+4.3−5.7(stat)8.4(syst)]  MeV/c2 and [35+11−12(stat)15(syst)]  MeV, respectively. The Born cross sections are measured to be σ[e+e−→Zc(3885)0π0,Zc(3885)0→DD∗]=[7713(stat)17(syst)]  pb at 4.226 GeV and [479(stat)10(syst)]  pb at 4.257 GeV. The ratio of decay rates B[Zc(3885)0→D+D*−+c.c.]/B[Zc(3885)0→D0D*0+c.c.] is determined to be 0.960.18(stat)0.12(syst), consistent with no isospin violation in the process, Zc(3885)0→DD∗.
653 _aBESIII, детектор
653 _aBEPCII, коллайдер
653 _aэлектроны
655 4 _aстатьи в журналах
_9681159
700 1 _aAblikim, M.
_9117568
700 1 _aAi, X. C.
_9117570
700 1 _aChelkov, G. A.
_996983
700 1 _aAchasov, M. N.
_9117569
710 2 _aТомский государственный университет
_bРадиофизический факультет
_bНаучные подразделения РФФ
_9107063
773 0 _tPhysical Review Letters
_d2015
_gVol. 115, № 22. P. 222002 (1-7)
_x0031-9007
852 4 _aRU-ToGU
856 7 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000533199
908 _aстатья
999 _c326768