| 000 | 01850nab a2200313 c 4500 | ||
|---|---|---|---|
| 001 | vtls000626128 | ||
| 003 | RU-ToGU | ||
| 005 | 20230319183327.0 | ||
| 007 | cr | | ||
| 008 | 180503|2017 xxu s a eng d | ||
| 024 | 7 |
_a10.1103/PhysRevD.96.012005 _2doi |
|
| 035 | _ato000626128 | ||
| 040 |
_aRU-ToGU _brus _cRU-ToGU |
||
| 245 | 1 | 0 |
_aObservation of the doubly radiative decay η' → γγπ0 _cM. Ablikim, M. N. Achasov, S. Ahmed [et.al.] |
| 504 | _aБиблиогр.: 21 назв. | ||
| 520 | 3 | _aBased on a sample of 1.31 billion J/ψ events collected with the BESIII detector, we report the study of the doubly radiative decay η′→γγπ0 for the first time, where the η′ meson is produced via the J/ψ→γη′ decay. The branching fraction of η′→γγπ0 inclusive decay is measured to be B(η′→γγπ0)Incl=(3.200.07(stat)0.23(sys))10−3, while the branching fractions of the dominant process η′→γω and the nonresonant component are determined to be B(η′→γω)B(ω→γπ0)=(23.71.4(stat)1.8(sys))10−4 and B(η′→γγπ0)NR=(6.160.64(stat)0.67(sys))10−4, respectively. In addition, the Mγγ2-dependent partial widths of the inclusive decay are also presented. | |
| 653 | _aBESIII, детектор | ||
| 653 | _aмезоны | ||
| 655 | 4 |
_aстатьи в журналах _9879358 |
|
| 700 | 1 |
_aAblikim, M. _9117568 |
|
| 700 | 1 |
_aAhmed, S. _9360310 |
|
| 700 | 1 |
_aChelkov, G. A. _996983 |
|
| 700 | 1 |
_aAchasov, M. N. _9117569 |
|
| 773 | 0 |
_tPhysical Review D _d2017 _gVol. 96, № 1. P. 012005-1-012005-8 _x1550-7998 |
|
| 852 | 4 | _aRU-ToGU | |
| 856 | 7 | _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000626128 | |
| 908 | _aстатья | ||
| 999 | _c279735 | ||