6533b834fe1ef96bd129df40
RESEARCH PRODUCT
Amplitude Analysis of Ds+→π+π0η and First Observation of the W -Annihilation Dominant Decays Ds+→a0(980)+π0 and Ds+→a0(980)0π+
Y. K. SunXiaoyu ZhouQ. P. JiS. SpataroX. P. XuT. KhanLei LiJ. F. SunF. FeldbauerZ. L. HuangFeng LiuBibo KeW. B. YanM. N. AchasovG. F. CaoX. TangM. AblikimS. PacettiBingxuan LiuS. JinXiang LiuA. Q. GuoG. RongS. MarcelloKe LiA. YuncuW. S. ChengYao ZhangG. LiA. GilmanJ. C. LiY. ZengS. LussoF. LiM. RoloX. N. MaB. WangM. QiJ. Y. LiuM. KavatsyukJ. ZhuangM. X. LuoF. C. MaS. B. LiuB. X. ZhangKe WangC. D. FuC. Q. FengW. P. WangX. R. ChenZ. Y. DengD. V. DedovichL. ZhangY. NefedovXu ZhouZ. H. QinJ. LibbyXingguo LiQ. GaoX D ShiY. J. MaoF. CossioK. J. ZhuX. K. ZhouFang LiuY. N. GaoY. B. ChenR. KliemtXiaofeng ZhuJ. Z. ZhangI. DenysenkoH. X. YangI. GarziaJ. F. QiuZ. G. WangH. J. YangL. FavaH. Y. ZhangA. MangoniYaquan FangA. GuskovJ. J. SongJun-yi ZhangJie YuCui LiW. C. YanL. SunM. RichterY. F. WangY. P. GuoS. AhmedS. QianQ. AnJialun PingA. CalcaterraZ. G. ZhaoL. Z. LiaoB. GarillonHuihui LiuFenfen AnY. X. YangKang LiHaiwen LiuJ. G. MesschendorpK. J. ZhuYang ZhangAndrzej KupscA. PitkaX. L. GaoK. ZhangB. Y. ZhangJ. P. DaiH. H. ZhangT. C. ZhaoG. CibinettoZ. P. ZhangZ. NingS. Y. XiaoZ. J. SunX. Y. ZhangQ. ZhaoY. Z. SunM. KuemmelMatthew Glenn KurthX. L. WangW. ShanC. DongS. SosioG. F. ChenM. L. ChenS. MaldanerXiang ZhouI. K. KeshkX. F. CuiC. X. LinXiao-rui LyuTao LuoJ. B. LiuT. HussainGang ZhaoJ. Z. BaiM. Y. DongQ. LiuJ. Y. ZhangX. Y. MaP. L. WangY. J. SunYifan YangK. SchoenningQ. Y. LiB. S. ZouC. F. RedmerW. X. GongH. B. LiA. G. DenigC. L. LuoQ. ZhouJoachim PetterssonMuhammad IrshadY. G. GaoL. K. LiL. L. MaNiklaus BergerZujian WangV. RodinR. FarinelliL. GongY. ZhangC. C. ZhangB. X. YuB. ZhongY. P. LuYunlong ZhangW. J. ZhuMichael PapenbrockF. YanY. BaiX. T. HuangH. L. MaD. BettoniH. B. LiuF. A. HarrisZ. T. SunX. B. JiJ. H. ZouQ. A. MalikD. M. LiG. MezzadriA. AmorosoH. MuramatsuA. N. ZhuUlrich WiednerX. Q. HeM. BertaniTao ZhangH. LeithoffR. PolingY. H. YanJin LiK. GoetzenP. PatteriZ. J. XiaoX. L. JiR. X. YangJianping ZhengT. MaL. P. ZhouJ. W. ZhaoM. PelizaeusL. YangA. DbeyssiXu ShanV. PrasadY. M. MaS. HanZ. P. MaoKrisztian PetersH. S. ChenX. H. SunH. L. DaiIgor BoykoS. S. SunX. Y. JiangAngelo RivettiJ. FangL. H. WuZ. GaoM. SavrieY. G. XieY. C. ZhuYi JinM. M. MaCh. RosnerM. DestefanisJ. Q. ZhangY. T. TanS. L. NiuW. GradlM. RipkaM. G. ZhaoY. H. YangR. P. GuoJ. ZhuL. KochJ. W. LiA. KhoukazX. LiuG. R. LiaoL. XiaF. De MoriY. J. XiaoR. Baldini FerroliH. LiangS. X. DuX. S. QinD. Y. WangNiu XiaoyangJ. MinS. J. ZhaoMeng WangZ. X. MengX. A. XiongZhiqing LiuF. Y. LiX. Q. LiY. F. LongM. GrecoA. A. ZafarM. FritschB. KopfT. JohanssonJ. F. ChangY. PanE. BogerJ. ChaiK. H. RashidT. HeldR. E. MitchellK. L. HeJianhao ZhangQ. J. XuMagnus WolkeJ. C. ChenXuanhong LouY. F. WangG. X. SunJ. V. BennettY. F. LiangO. B. KolcuX. N. LiKe LiuY. T. LiangM. Z. WangHaiping PengJimin ZhaoD. P. JinNasser Kalantar-nayestanakiS. J. ChenP. L. LiC. Morales MoralesY. BanP. WeidenkaffF. H. HeinsiusX. CaiQ. M. MaL. LavezziA. MustafaK. J. LiX. Q. HaoZ. JiaoFu-hu LiuD. H. ZhangC. SowaY. B. ZhaoSerkant Ali CetinYi ZhangY. YuanY. S. ZhuM. AlbrechtW. D. LiB. T. TsedneeJ. DongJ. J. XuZ. Q. YangGuangshun HuangL. YanDayong WangM. KuessnerN. QinS. P. WenS. NisarC. J. TangY. HuY. P. LuK. Y. LiuZ. A. LiuJ. S. HuangC. X. LiuD. Y. LiuJ. B. JiaoS. Q. QuZ. B. LiW. Ikegami AnderssonR. KappertX. R. ZhouP. KieseYuan HouS. L. OlsenCheng LiR. A. BriereG. F. XuX. S. JiangH. J. LuJ. G. LuG. A. ChelkovF. E. MaasX. Y. SongT. HuY. H. XieJ. PellegrinoO. BakinaM. MaggioraJ. L. ZhangLing ZhaoM. H. GuR. KiuchiH. Y. ShengLei ZhaoZ. L. HouC. X. YuP. X. ShenB. ZhengR. G. PingZ. WuX. K. ChuM. H. YeY. K. HengZhiqing ZhangL. D. LiuL. Y. DongJ. F. HuC. Z. YuanN. CaoF. NerlingZhiyong ZhangI. B. NikolaevJ. H. YinM. ShaoY. T. GuA. SarantsevMatthew Glenn KurthD. H. WeiP. R. LiP. R. LiJ. S. LangeX. H. MoL. S. WangM. H. YeY. DingL. L. WangH. CaiB. J. LiuW. KühnZ. Y. YouZ. A. ZhuT. WeberC. P. ShenL. J. WuY. J. MoQ. P. JiLiqing XuX. Y. ShenW. ImoehlP. L. WangX. L. LuoK. BegzsurenF. BianchiG. Y. TangD. Y. LiuHuanhuan LiuY. H. ZhengCong-feng QiaoJie ZhaoD. X. LinG. FeliciN. Yu. MuchnoiH. J. LiQ. L. XiuX. S. KangAlexey ZhemchugovH. M. HuZongyuan WangY. H. ZhangQ. OuyangS. S. FangY. B. LiuZ. Y. WangM. AlekseevI. UmanP. LarinT. Y. QiY. X. XiaS. H. ZhuW. G. Lisubject
PhysicsCrystallographyAnnihilationAmplitudeBranching fractionElectron–positron annihilation0103 physical sciencesGeneral Physics and Astronomy010306 general physics01 natural sciencesEnergy (signal processing)Order of magnitudeLuminositydescription
We present the first amplitude analysis of the decay D_{s}^{+}→π^{+}π^{0}η. We use an e^{+}e^{-} collision data sample corresponding to an integrated luminosity of 3.19 fb^{-1} collected with the BESIII detector at a center-of-mass energy of 4.178 GeV. We observe for the first time the W-annihilation dominant decays D_{s}^{+}→a_{0}(980)^{+}π^{0} and D_{s}^{+}→a_{0}(980)^{0}π^{+}. We measure the absolute branching fraction B(D_{s}^{+}→a_{0}(980)^{+(0)}π^{0^{(}+)},a_{0}(980)^{+(0)}→π^{+(0)}η)=(1.46±0.15_{stat}±0.23_{sys})%, which is larger than the branching fractions of other measured pure W-annihilation decays by at least one order of magnitude. In addition, we measure the branching fraction of D_{s}^{+}→π^{+}π^{0}η with significantly improved precision.
year | journal | country | edition | language |
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2019-09-12 | Physical Review Letters |