6533b86cfe1ef96bd12c88f4
RESEARCH PRODUCT
Precise Measurement of the e+e− → π+π−J/ψ Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV
S. HanHaiwen LiuG. X. SunM. SavrieJ. M. BianQun OuyangY.n. GaoL. XiaWolfgang KuhnP. F. DuanA. CalcaterraX. S. JiangKanglin HeD. Y. WangS. H. ZhuD. P. JinXiao-rui LyuH. Y. ShengJ. S. HuangA. SarantsevL. H. WuM. TiemensX. S. QinXian GaoC. LengM. ShaoB. L. WangJianyu ZhangL. B. GuoD. H. WeiE. FioravantiP. MusiolC. F. RedmerC. SchnierZhenyu ZhangM. AblikimYu ZhangA. A. ZafarB. J. LiuLei ZhaoX. D. RuanY. J. SunTao HuI. TapanJia LiuI. B. NikolaevDing-xiong WangQ. P. JiJ. M. ZhangR. FarinelliJie ZhangL. L. MaL. GongJingzhou ZhaoGuangshun HuangL. YanWang ZengqiangNiu XiaoyangZ. JiaoZ. J. SunH. L. DaiH. X. YangC. Morales MoralesC. L. LuoJ. Z. BaiZhiqing LiuYuanbo ChenZ. P. MaoY. P. GuoY. S. ZhuY. B. LiuF. FeldbauerZ. Y. YouH. H. LiuX. L. JiH. H. ZhangMichela GrecoGuangyu ZhaoJ. W. ZhaoJie ZhaoGang LiG. S. VarnerM. G. ZhaoBibo KeJia XuL. ZottiYuekun HengH. MuramatsuJ.h. YinH. XiaoHao LiangKrisztian PetersA. AmorosoM. WolkeB. ZhongE. BogerLei XuYongke ZhaoM. FritschX. Y. MaMinglin MaL. G. XiaM. N. AchasovL. YangXinying SongP. WangD. J. AmbroseI. DenysenkoGiulietto FeliciS. PacettiXuan ZhangN. Kalantar-nayestanakiJie LiuA. YuncuChang-zheng YuanY. J. MoJ. G. MesschendorpJin LiYingchun ZhuM. PelizaeusXiaocong AiQ. L. XiuY. F. WangO. B. KolcuF. F. AnY. H. GuanF. Y. LiR. Baldini FerroliA. Q. GuoL. FavaL. ZhangX. R. ChenH. LoehnerY. F. LiangMing-xing LuoJiajun ZhengL. L. WangM. DestefanisH. S. ChenG. RongY. T. GuB. WangJ. F. HuT. WeberH. Y. ZhangJianhao ZhangM. AlbrechtZheng WangJianbei LiuW. ShanDan BennettMing QiX. Q. HaoZ. WuJianguo ZhangO. AlbayrakG. A. ChelkovZ. H. QinO. BakinaM. H. YeS. MarcelloTalib HussainR. A. BriereA. JulinI. UmanChen HuJ. F. ChangX. K. ZhouY. Q. WangYun-zhi ZhangY. P. LuW. M. SongZhi ZengY. N. ZhangQiang ZhaoS. NisarMeng WangX. S. KangZhanwen ZhuT. HeldY. H. YanWu LiXiang LiZhengguo ZhaoFeng LiuLing ZhaoY. MaB. KopfD. M. LiY. HuT. MaM. RipkaP. X. ShenWenbiao YanKai LiuCunming LiuCui LiN. Yu. MuchnoiH. CaiP. WeidenkaffYanwei WangL. D. LiuHong MaB. Y. ZhangL. W. JiangTiefu ZhaoG. MezzadriW. C. YanXin FangR. PolingG. R. LiaoX. W. TangS. L. NiuM. KornicerChangjian TangX. H. MoW. P. WangZhiqing ZhangS. SpataroS. S. FangJingzhou FanD. XiaoLi ZhouY. G. XieYunpeng LuX. P. XuR. E. MitchellY. XiaF. Y. LiX. K. ChuW. J. ZhengShujun ZhaoJ. F. SunQ. A. MalikB. KlossD. H. ZhangY. NefedovZ. L. DouR. P. GuoJ. LiuX. Y. JiangL. Q. QinF. NerlingZhao-long WangK. ZhangJ. LangeM. BertaniF. A. HarrisZ. Y. DengM. H. GuW. Ikegami AnderssonX. Z. CaiYong LiuD. BettoniTord JohanssonC. DongQ. P. JiH. J. LuCunfeng FengYi FangL. LavezziK. H. RashidH. M. HuN. QinLei LiP. R. LiP. R. LiOrhan CakirS. SosioJiemin LiY. Z. SunJ. L. PingW. X. GongZ. L. HouU. WiednerG. F. XuP. KieseG. CibinettoSiyuan SunJia-ju ZhangP. L. LiuX. L. LuoY. ZhangZahra HaddadiQingnian XuXiaozhong HuangYe-fei YuanF. C. MaA. DenigH. B. LiuS. B. LiuX. Y. ShenZ. GaoMingshui ChenY. PanX. L. KangQ. J. XuCh. RosnerQ. W. ZhaoJ. ChaiXu ZhouKa-yuet LiuJoachim PetterssonAndrzej KupscX. C. LouZhen WangYiming ZhangH. B. LiF. De MoriShou-hua ZhuZ. LiuFu-hu LiuL. J. WuY. ZengP. LarinF. E. MaasW. F. WangS. X. DuCen ZhangTeng LiB. S. ZouW. GradlX. L. LiC. F. QiaoJ. P. DaiS. AhmedY. X. YangK. SchoenningQ. Y. LiJ. V. BennettNiklaus BergerK. LiX. N. MaJianbin JiaoY. DingL. S. WangY. T. LiangB. X. YuA. HafnerX. H. SunDmitri DedovichXiang ZhouZ. B. LiK. GoetzenI. BoykoH. P. PengI. GarziaB. X. ZhangS. Z. ChenY. J. MaoM. KavatsyukT. HoltmannG. F. CaoE. H. ThorndikeQ. GaoFabrizio BianchiQ. AnJ. Y. ZhangYuehong XieA. ZhemchugovS. P. WenX. B. JiY. GuoXingtao HuangM. Y. DongP. WangY. B. LiQingming MaKai ZhuZ. L. HuangJ. C. ChenS. QianXiang LiuXiaoyu LiJiaheng ZouChunxu YuT. J. MinT. LuoJunguang LuM. MaggioraJ. S. YuR. KliemtGuo-ming ChenH. LeithoffQi LiuX. D. ChenY. H. ZhengFang LiuBingxuan LiuH. J. LiM. YeS. JinS. L. OlsenC. P. ShenSai-juan ChenJian ZhuangM. LaraY. D. WangWei LiR. G. PingHongji YangKejun ZhuZhiyong ZhangH. R. QiZ. J. XiaoJ. MinC. D. FuSerkant Ali CetinP. PatteriD. Y. LiuJianmin DongJian FangYong BanJ. F. QiuS. Q. ZhangZ. NingD. X. LinXuejun WangKai WangB. ZhengZ. T. SunV. PrasadL. Y. DongXianglei ZhuF. H. HeinsiusX. R. ZhouCheng LiA. Dbeyssisubject
Nuclear physicsPhysicsCross section (physics)SigmaCenter of massResonance (particle physics)Belle experimentStorage ringdescription
The cross section for the process e(+)e(-)-> pi(+) pi(-) J/psi is measured precisely at center-of-mass energies from 3.77 to 4.60 GeV using 9 fb(-1) of data collected with the BESIII detector operating at the BEPCII storage ring. Two resonant structures are observed in a fit to the cross section. The first resonance has a mass of (222.0 +/- 3.1 +/- 1.4) MeV/ c(2) and a width of (44.1 +/- 4.3 +/- 2.0)MeV, while the second one has a mass of (4320.0 +/- 10.4 +/- 7.0)MeV/c(2) and a width of (101.4(- 19.7)(+25.3) +/- 10.2) MeV, where the first errors are statistical and second ones are systematic. The first resonance agrees with the Y(4260) resonance reported by previous experiments. The precision of its resonant parameters is improved significantly. The second resonance is observed in e(+)e(-)-> pi(+) pi(-) J/psi for the first time. The statistical significance of this resonance is estimated to be larger than 7.6 sigma. The mass and width of the second resonance agree with the Y(4360) resonance reported by the BABAR and Belle experiments within errors. Finally, the Y(4008) resonance previously observed by the Belle experiment is not confirmed in the description of the BESIII data.
year | journal | country | edition | language |
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2020-06-01 | 30 Years of BES Physics |