6533b7d3fe1ef96bd1260a2c
RESEARCH PRODUCT
Measurement of e+e−→π+π−ψ(3686) from 4.008 to 4.600 GeV and observation of a charged structure in the π±ψ(3686) mass spectrum
D. J. AmbroseX. L. JiJ. F. SunJ. C. LiJ. ZhuangM. X. LuoR. FarinelliM. AlbrechtG. A. ChelkovG. A. ChelkovG. A. ChelkovTalib HussainK. GoetzenS. MarcelloY. ZengM. Y. DongA. Q. GuoG. RongW. D. LiX. FangH. B. LiuJ. H. ZouD. V. DedovichH. L. MaD. M. LiH. MuramatsuL. ZottiI. UmanW. M. SongY. DingY. X. XiaYanwei WangA. YuncuA. YuncuZ. T. SunZ. L. HuangFeng LiuY. B. ChenM. PelizaeusXiaofeng ZhuJ. Z. ZhangP. L. WangS. S. SunP. LarinJ. M. BianS. J. ZhaoB. J. LiuB. J. LiuM. AblikimM. H. YeS. QianJialun PingK. ZhangJie ZhaoD. X. LinH. M. HuE. H. ThorndikeY. G. XieX. Y. ZhangV. PrasadQ. LiuX. D. RuanW. P. WangI. TapanP. KieseY. BanP. WeidenkaffF. H. HeinsiusC. LengT. HoltmannF. A. HarrisL. Q. QinR. E. MitchellS. X. DuZ. L. DouL. D. LiuM. LaraJ. B. LiuZ. H. QinS. P. WenY. J. SunE. BogerE. BogerL. L. MaL. GongY. H. YanJ. W. ZhaoW. KühnS. L. OlsenR. A. BriereL. Y. DongX. S. QinX. R. ZhouZ. Y. YouZ. A. ZhuCheng LiL. G. XiaQ. J. XuF. FeldbauerJ. C. ChenX. K. ZhouFang LiuJ. Y. LiuJ. P. DaiY. H. GuanS. JinZhiqing LiuY. P. LuA. AmorosoY. C. ZhuY. J. MaoYao ZhangG. LiX. S. JiangH. X. YangI. GarziaI. DenysenkoXuanhong LouNasser Kalantar-nayestanakiGuangshun HuangH. B. LiX. C. ChenA. G. DenigQ. GaoY. N. GaoC. L. LuoXiao-rui LyuL. YanKai LiuW. J. ZhengX. K. ChuH. LeithoffF. LiT. JohanssonJ. F. ChangA. DbeyssiM. KornicerC. D. FuF. NerlingG. F. XuS. Z. ChenB. Y. ZhangC. Morales MoralesC. P. ShenQ. AnJ. Q. ZhangC. Q. FengX. R. ChenYao WangF. C. MaG. S. VarnerO. B. KolcuO. B. KolcuH. XiaoT. HeldA. JulinF. De MoriZ. Y. DengY. NefedovO. CakirHuihui LiuJ. P. LiuC. C. ZhangY. GuoJ. Z. FanA. ZhemchugovA. ZhemchugovX. CaiJ. H. YinK. H. RashidK. H. RashidPeilian LiuX. Y. ZhouXingguo LiL. J. WuJ. G. MesschendorpS. L. NiuM. ShaoY. T. GuLingxuan ZhangF. Y. LiQiunan XuX. Y. SongX. Q. LiY. F. LongS. AhmedY. X. YangZhiyong ZhangJ. Z. BaiKang LiX. Q. HaoH. J. LuJ. G. LuB. ZhongL. B. GuoX. N. MaY. T. LiangBibo KeX. LiuH. R. QiZ. NingJ. F. QiuY. J. MoE. FioravantiM. GrecoW. G. LiJ. J. XuW. B. YanM. N. AchasovM. N. AchasovGiulietto FeliciF. E. MaasL. FavaT. HuM. FritschS. PacettiSerkant Ali CetinCui LiX. F. WangQ. M. MaX. L. KangA. SarantsevA. SarantsevUlrich WiednerQ. P. JiS. SpataroT. WeberY. H. ZhengCong-feng QiaoO. AlbayrakN. Yu. MuchnoiN. Yu. MuchnoiM. H. GuY. B. LiX. P. XuY. Y. LiuJ. S. HuangM. MaggioraM. KavatsyukKlaus PetersKlaus PetersA. HafnerQ. ZhaoX. B. JiM. TiemensH. Y. ShengY. Z. SunD. H. WeiJ. S. LangeQ. W. ZhaoT. MaO. BakinaKe LiLing ZhaoD. Y. LiuJ. B. JiaoC. X. LiuB. KlossX. Y. NiuY. YuanK. Y. LiuP. PatteriY. S. ZhuZ. B. LiW. Ikegami AnderssonLei LiQ. P. JiX. S. KangY. H. ZhangLei ZhaoXiang ZhouZ. L. HouC. X. YuGang ZhaoYang ZhangB. X. ZhangP. X. ShenYuekun HengZ. WuS. H. ZhuR. KliemtY. F. WangLiqing XuX. Y. ShenZ. Y. WangG. F. CaoJie YuS. J. ChenB. ZhengR. G. PingL. W. JiangX. H. MoL. S. WangS. Q. ZhangZhiqing ZhangM. H. YeG. R. LiaoX. Y. MaW. X. GongA. CalcaterraZ. G. ZhaoT. J. MinK. J. ZhuC. Z. YuanL. L. WangH. CaiG. CibinettoJun-yi ZhangY. P. GuoH. H. ZhangX. H. SunZ. J. SunH. LoehnerS. HanZ. P. ZhangD. W. BennettZujian WangL. H. WuM. SavrieX. Y. JiangM. M. MaP. R. LiP. R. LiY. PanZ. H. WangJ. ChaiG. X. SunJ. V. BennettZ. JiaoFu-hu LiuD. H. ZhangY. B. ZhaoW. ShanJ. DongY. Q. WangS. NisarP. MusiolC. J. TangY. HuY. P. LuC. F. RedmerXiaocong AiZ. A. LiuC. SchnierB. WangD. XiaoX. T. HuangA. A. ZafarXiaozhong HuangAndrzej KupscM. L. ChenMagnus WolkeY. F. LiangD. P. JinDayong WangN. QinXian GaoMichael PapenbrockZ. J. XiaoQ. A. MalikC. DongS. SosioJoachim PetterssonYunlong ZhangD. BettoniJ. L. ZhangJianping ZhengS. ZhuJ. J. ZhangM. DestefanisC. HuX. TangM. QiH. J. YangK. J. ZhuS. B. LiuJ. MinB. KopfK. L. HeM. Z. WangJimin ZhaoP. L. WangX. L. LuoW. P. WangF. BianchiHuanhuan LiuM. BertaniZ. HaddadiL. YangH. J. LiQ. L. XiuZongyuan WangQ. OuyangS. S. FangY. B. LiuW. GradlM. RipkaD. Y. WangR. Baldini FerroliX. N. LiHaiping PengTao LuoB. X. YuZhi ZengH. LiangI. B. NikolaevI. B. NikolaevH. S. ChenH. L. DaiIgor BoykoJ. H. LiuKe WangJianhao ZhangR. PolingP. F. DuanFenfen AnB. L. WangYaquan FangT. C. ZhaoK. SchoenningQ. Y. LiB. S. ZouNiklaus BergerG. MezzadriW. C. YanYu ZhangL. P. ZhouY. M. MaZ. P. MaoJ. FangTao LiZ. GaoCh. RosnerZ. G. WangH. Y. ZhangHaiwen LiuL. XiaG. F. ChenJ. Y. ZhangJin LiM. G. ZhaoR. P. GuoY. H. XieY. N. Zhangsubject
Particle physicsPhotonMesonElectron–positron annihilationGeneral Physics and AstronomyDalitz plot01 natural sciencesResonance (particle physics)law.inventionMomentumNuclear physicslaw0103 physical sciencesPiIntermediate stateInvariant massBorn approximationNuclear Experiment010306 general physicsColliderQuantum chromodynamicsPhysicsLuminosity (scattering theory)Linear polarization010308 nuclear & particles physicsSigmaMagnetic fieldAntimatterIsospinMass spectrumHigh Energy Physics::ExperimentAtomic physicsdescription
We study the process e(+)e(-) -> p(+)p(-)psi(3686) using 5.1 fb(-1) of data collected at 16 center-of-mass energy (root s) points from 4.008 to 4.600 GeV by the BESIII detector operating at the BEPCII collider. The measured Born cross sections for e(+)e(-) -> p(+)p(-)psi(3686) are consistent with previous results, but with much improved precision. A fit to the cross section shows contributions from two structures: the first has M = 4209.5 +/- 7.4 +/- 1.4 MeV/c(2) and Gamma = 80.1 +/- 24.6 +/- 2.9 MeV, and the second has M = 4383.8 +/- 4.2 +/- 0.8 MeV/c(2) and Gamma = 84.2 +/- 12.5 +/- 2.1 MeV, where the first errors are statistical and the second systematic. The lower-mass resonance is observed in the process e(+)e(-) -> p(+)p(-)psi(3686) for the first time with a statistical significance of 5.8 sigma. A charged charmoniumlike structure is observed in the pi(+/-)psi(3686) invariant mass spectrum for data at root s = 4.416 GeV. A fit with an S-wave Breit-Wigner function yields a mass M = 4032.1 +/- 2.4 MeV/c(2), where the errors are statistical only. However, there are still unresolved discrepancies between the fit model and data. The width of the intermediate state varies in a wide range for different kinematic regions within the data set. Therefore, no simple interpretation of the data has been found, and a future data sample with larger statistics and more theoretical input will be required to better understand this issue.
year | journal | country | edition | language |
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2018-03-07 | Physical Review D |