6533b836fe1ef96bd12a133f

RESEARCH PRODUCT

Observation of a resonant structure in e+e− → ωη and another in e+e− → ωπ0 at center-of-mass energies between 2.00 and 3.08 GeV

J. ZhaoJ. ZhaoJ. ZhaoZ. A. LiuX. WangX. WangX. WangF. De MoriMagnus WolkeMagnus WolkeMagnus WolkeY. F. LiangY. F. LiangY. F. LiangY.t. GuY.t. GuY.t. GuV. PrasadT. T. HanT. T. HanT. T. HanZ.t. SunZ.t. SunS. MarcelloY. ZengY. ZengY. ZengY. BanY. BanY. BanXujin YuanXujin YuanXujin YuanP. WeidenkaffP. WeidenkaffP. WeidenkaffF. H. HeinsiusF. H. HeinsiusF. H. HeinsiusX. L. GaoT. Y. XingD. Y. ChenD. Y. ChenD. Y. ChenW. ImoehlW. ImoehlW. ImoehlS. B. LiuR. FarinelliJ. G. LuS. J. ZhaoS. J. ZhaoS. J. ZhaoC.x. LiuC.x. LiuZ.y. DengZ.y. DengY. P. GuoY. P. GuoY. P. GuoH. J. LiH. J. LiH. J. LiStephen Lars OlsenStephen Lars OlsenStephen Lars OlsenR. KliemtR. KliemtR. KliemtX. H. XieX. H. XieX. H. XieX. R. ZhouD.h. WeiD.h. WeiD.h. WeiG.f. XuG.f. XuAndrzej KupscAndrzej KupscAndrzej KupscW.y. SunW.y. SunW.y. SunM. L. ChenT. LenzT. LenzT. LenzY. B. ChenY. FangY. FangZ. Y. YouZ. Y. YouZ. Y. YouZ. A. ZhuW. C. YanW. C. YanW. C. YanGang ChenGang ChenR. S. ShiCheng LiD. M. LiD. M. LiD. M. LiZ. Y. YuanZ. Y. YuanZ. Y. YuanXiaofeng ZhuXiaofeng ZhuXiaofeng ZhuJ. Z. ZhangJ. J. SongJ. J. SongJ. J. SongR. Baldini FerroliR. Baldini FerroliQ. J. XuQ. J. XuQ. J. XuH. LiangL. SunL. SunL. SunT. WeberT. WeberT. WeberC. DongC. DongC. DongJ.y. ZhangJ.y. ZhangS. SosioM. QiM. QiM. QiF. LiJ.h. YinJ.h. YinT. HuZ.y. WangZ.y. WangZujian WangM. PelizaeusM. PelizaeusM. PelizaeusA. BortoneXuanhong LouS. AhmedS. AhmedC. W. WangC. W. WangC. W. WangM. FritschM. FritschM. FritschViktor ThorénViktor ThorénViktor ThorénNasser Kalantar-nayestanakiNasser Kalantar-nayestanakiNasser Kalantar-nayestanakiY. BaiY. BaiY. BaiH. J. YangH. J. YangH. J. YangZ. NingS. Y. XiaoS. Y. XiaoA. YuncuA. YuncuA. YuncuJens Soeren LangeJens Soeren LangeC. P. ShenC. P. ShenC. P. ShenL. J. WuX. WuX. WuX. WuS.a. CetinS.a. CetinS.a. CetinS. NakhoulS. NakhoulS. NakhoulM.n. AchasovM.n. AchasovM.n. AchasovYue PanYue PanYue PanO. BakinaO. BakinaO. BakinaK. LiuK. LiuTao LuoTao LuoTao LuoJ.h. ZouJ.h. ZouQ. LiuQ. LiuQ. LiuY.z. SunY.z. SunL. YanL. YanL. YanJ. F. HuJ. F. HuJ. F. HuX.s. KangX.s. KangX.s. KangF.x. LuF.x. LuF.x. LuG.x. SunG.x. SunW. M. SongW. M. SongW. M. SongY. X. TanP. X. ShenP. X. ShenP. X. ShenZ. WuL. Y. DongX.q. HaoX.q. HaoX.q. HaoZhiyong ZhangZhiyong ZhangZhiyong ZhangS. L. YangKe LiuKe LiuKe LiuQ. A. MalikQ. A. MalikQ. A. MalikZhenjun XiaoZhenjun XiaoZhenjun XiaoA. SarantsevA. SarantsevA. SarantsevC.l. LuoC.l. LuoC.l. LuoX. L. LuX. L. LuL. L. MaL. L. MaL. L. MaL. GongL. GongL. GongT. LiuL. KochL. KochLibo GuoLibo GuoLibo GuoL.l. WangL.l. WangJoachim PetterssonJoachim PetterssonJoachim PetterssonL. G. XiaA. AmorosoJ.l. PingJ.l. PingJ.l. PingJ. TangJ. TangJ. TangB. ZhongB. ZhongB. ZhongX. Y. JiangX. Y. JiangX. Y. JiangShuai LiuShuai LiuShuai LiuR.p. GuoR.p. GuoR.p. GuoJinfei WuM. M. MaZhiqing ZhangZhiqing ZhangZhiqing ZhangF. FeldbauerF. FeldbauerF. FeldbauerX. L. JiZ.x. MengZ.x. MengZ.x. MengYu LuYu LuP. KieseP. KieseP. KieseYuan HouYuan HouYuan HouM. RoloM. RoloH. Y. ZhangB. X. YuL. FavaZhi YangZhi YangL. M. GuL. M. GuL. M. GuYunlong ZhangA. DbeyssiA. DbeyssiL.h. WuL.h. WuR. A. BriereR. A. BriereR. A. BriereJ. J. XuJ. J. XuJ. J. XuL. P. ZhouA. CalcaterraA. CalcaterraH. B. LiA. G. DenigA. G. DenigA. G. DenigQ. ZhouY. J. MoY. J. MoY. J. MoR. B. De BoerR. B. De BoerR. B. De BoerGuangyi ZhangGuangyi ZhangGuangyi ZhangX.p. QinX.p. QinX.p. QinFeng LiuFeng LiuFeng LiuN. Yu. MuchnoiN. Yu. MuchnoiN. Yu. MuchnoiI. K. KeshkI. K. KeshkI. K. KeshkC. X. LinC. X. LinC. X. LinF. F. SuiF. F. SuiF. F. SuiM. RumpM. RumpM. RumpM. H. GuD. C. ShanD. C. ShanD. C. ShanShan JinShan JinShan JinXu YanXu YanXu YanY. M. MaY. M. MaY. M. MaH. J. LuH. J. LuZ. H. QinX D ShiQ. JiQ. JiY. J. MaoY. J. MaoY. J. MaoR. KiuchiR. KiuchiR. T. MaR. T. MaR. T. MaM. Y. DongY. ZhangY. ZhangY. ZhangX. S. JiangR. PolingR. PolingR. PolingF.h. LiuF.h. LiuF.h. LiuI. DenysenkoI. DenysenkoI. DenysenkoJ. V. BennettJ. V. BennettJ. V. BennettH. XiaoH. XiaoH. XiaoZiyuan LiZiyuan LiZiyuan LiY. H. ZhengY. H. ZhengY. H. ZhengC. X. YuC. X. YuC. X. YuCong-feng QiaoCong-feng QiaoCong-feng QiaoB.s. ZouB.s. ZouX. N. MaX. N. MaX. N. MaJ. B. JiaoJ. B. JiaoJ. B. JiaoJ. FangI.b. NikolaevI.b. NikolaevI.b. NikolaevG. LiG. LiJianping ZhengA. LavaniaA. LavaniaA. LavaniaW. ShanW. ShanW. ShanC. ZhongC. ZhongC. ZhongB. KopfB. KopfB. KopfZ. JiaoZ. JiaoS. F. ZhangS. F. ZhangS. F. ZhangI. GarziaL. ZhangL. ZhangR. X. YangWei XuH. MuramatsuH. MuramatsuH. MuramatsuA. N. ZhuUlrich WiednerUlrich WiednerUlrich WiednerY.t. LiangY.t. LiangTao ZhangTao ZhangTao ZhangT. HoltmannT. HoltmannT. HoltmannW.g. LiW.g. LiB. ZhengB. ZhengB. ZhengR. G. PingP. AdlarsonP. AdlarsonP. AdlarsonK. PetersK. PetersK. PetersJ. Y. LiuM. SavriéM. SavriéM. SavriéY. K. HengY.x. ZhaoY.x. ZhaoH. S. ChenG. ChelkovG. ChelkovG. ChelkovY. B. ZhaoCh. RosnerCh. RosnerK. L. HeJunfeng SunJunfeng SunJunfeng SunZiyi WangZiyi WangZiyi WangJ. DongZhiqing LiuZhiqing LiuZhiqing LiuQ.m. MaQ.m. MaT. J. MinT. J. MinT. J. MinF.c. MaF.c. MaF.c. MaM. AblikimM. AblikimM. Z. WangM. Z. WangM. Z. WangA. RivettiA. RivettiM. BertaniM. BertaniM. AlbrechtM. AlbrechtM. AlbrechtY. H. ZhangM. KavatsyukM. KavatsyukM. KavatsyukJianyu ZhangHuihui LiuHuihui LiuHuihui LiuH. L. DaiT. Z. HanT. Z. HanT. Z. HanJ. Q. ZhangJ. Q. ZhangJ. Q. ZhangJ. G. MesschendorpJ. G. MesschendorpJ. G. MesschendorpH. C. ShiQ. ZhaoQ. ZhaoG. FeliciG. FeliciC.h. LiC.h. LiC.h. LiS. S. SunK. ZhuK. ZhuM. KuemmelM. KuemmelM. KuemmelMatthew Glenn KurthM.h. YeM.h. YeM.h. YeJimin ZhaoX. Y. ShenP.r. LiP.r. LiP.r. LiS. NisarS. NisarS. NisarC. J. TangC. J. TangC. J. TangT. JohanssonT. JohanssonT. JohanssonJ. F. ChangX. LiuX. LiuX. LiuJ. LibbyJ. LibbyJ. LibbyY. F. WangP. L. LiY. F. LongY. F. LongY. F. LongX.r. ChenX.r. ChenK. RavindranK. RavindranK. RavindranW. D. LiO.b. KolcuO.b. KolcuO.b. KolcuXu ShanX. L. LuoL. LavezziL. LavezziJ. P. DaiJ. P. DaiJ. P. DaiQ.p. JiQ.p. JiQ.p. JiM. DestefanisX. S. QinX. S. QinX. S. QinY. P. LuC.d. FuC.d. FuD. DedovichD. DedovichD. DedovichX. H. MoW. KühnW. KühnX. F. CuiX. F. CuiX. F. CuiB. WangB. WangM. GrecoL.q. QinL.q. QinL.q. QinH. R. QiH. R. QiH. R. QiX. CaiC. F. RedmerC. F. RedmerC. F. RedmerJ. D. LuB.x. ZhangB.x. ZhangB. T. TsedneeB. T. TsedneeC. SchnierC. SchnierC. SchnierD. BettoniD. BettoniL. Z. LiaoMeng WangMuhammad IrshadL. YangL. YangL. YangX. PanX. PanX. PanY. G. XieKe WangC. LiC. LiC. LiM. G. ZhaoM. G. ZhaoM. G. ZhaoY. H. YangY. H. YangY. H. YangM. H. YeX. X. MaJ. ZhuJ. ZhuJ. ZhuA. PitkaA. PitkaA. PitkaY. DingY. DingY. DingXiongfei WangXiongfei WangXiongfei WangG. CibinettoG. CibinettoYi ZhangYi ZhangYi ZhangR. E. MitchellR. E. MitchellR. E. MitchellYan ZhangY. K. SunZ. HuangZ. HuangZ. HuangS. SpataroX. P. XuX. P. XuX. P. XuH. B. JiangH. B. JiangH. B. JiangJiawei ZhangJ. L. LiJ. L. LiJ. L. LiJohn Jake LaneJohn Jake LaneJohn Jake LaneX. T. HuangX. T. HuangX. T. HuangG. S. HuangEvelina GersabeckEvelina GersabeckEvelina GersabeckS. LussoS. LussoH.l. MaH.l. MaGuoqiang YuG. RongS. Q. QuS. Q. QuS. Q. QuZ. B. LiZ. B. LiZ. B. LiW. Ikegami AnderssonW. Ikegami AnderssonW. Ikegami AnderssonP. LarinP. LarinS. ZhangS. ZhangS. ZhangI. BalossinoI. BalossinoX. ZhouX. ZhouX. ZhouY. FuY. FuBibo KeM. X. LuoM. X. LuoM. X. LuoDylan Jaide WhiteDylan Jaide WhiteDylan Jaide WhiteS. X. DuS. X. DuS. X. DuW. GradlW. GradlW. GradlH. CaiH. CaiH. CaiF. A. HarrisF. A. HarrisF. A. HarrisW. L. ChangW. B. YanY. F. WangY. H. ZhengY. H. ZhengY. H. ZhengY. HuY. HuK. SchoenningK. SchoenningK. SchoenningY. GaoY. GaoY. GaoL. Q. HuangL. Q. HuangL. Q. HuangW. J. ZhuW. J. ZhuW. J. ZhuJacek BiernatJacek BiernatJacek BiernatY. SchelhaasY. SchelhaasY. SchelhaasX. D. ShiY. X. SongY. X. SongY. X. SongD. Y. WangD. Y. WangD. Y. WangLei LiLei LiLei LiB. L. WangB. L. WangB. L. WangH. M. LiuY. JinY. JinY. JinH. LeithoffH. LeithoffH. LeithoffS. HanS. HanS. HanT. HussainT. HussainT. HussainL. ZhaoL. ZhaoI. BoykoI. BoykoI. BoykoNiklaus BergerNiklaus BergerNiklaus BergerLei ZhangLei ZhangLei ZhangX. Y. MaW. X. GongY. NefedovY. NefedovY. NefedovA. KhoukazA. KhoukazA. KhoukazRuiting MaM. ShaoA. PathakA. PathakS. PacettiS. PacettiS. PacettiZ. QianZ. QianZ. QianG. F. CaoN. HueskenN. HueskenN. HueskenY. C. ZhuXiao-rui LyuXiao-rui LyuXiao-rui LyuS. MaldeS. MaldeS. MaldeM. Z. WangM. Z. WangM. Z. WangR. KappertR. KappertR. KappertB.j. LiuB.j. LiuY. H. TanY. H. TanY. H. TanKe LiKe LiHaiping PengZ. G. ZhaoT. HeldT. HeldT. HeldK. BegzsurenK. BegzsurenY. G. GaoY. G. GaoY. G. GaoW. H. WangW. H. WangW. H. WangH. H. ZhangH. H. ZhangH. H. ZhangH. R. QiQ. Q. SongS. GuS. GuS. GuFang LiuFang LiuC.x. YueC.x. YueC.x. YueS.p. WenS.p. WenM. LellmannM. LellmannM. LellmannS. MaldanerS. MaldanerS. MaldanerY. J. XiaoJ. Q. LiJ. Q. LiJ. Q. LiA. Q. GuoA. Q. GuoA. Q. GuoY.q. WangY.q. WangS. JanchivS. JanchivJ.f. QiuJ.f. QiuX. A. XiongL. D. LiuW. P. WangF. BianchiJ. BlomsJ. BlomsJ. BlomsA. A. ZafarA. A. ZafarA. A. ZafarK. H. RashidK. H. RashidK. H. RashidY.d. WangY.d. WangZ.p. MaoZ.p. MaoS. QianQ. AnA. GuskovA. GuskovA. GuskovS. J. ChenS. J. ChenS. J. ChenX. Y. ZhangX. Y. ZhangX. Y. ZhangX. L. WangX. L. WangX. L. WangJ. B. LiuY. J. SunYifan YangD. Y. LiuD. Y. LiuD. Y. LiuZongyuan WangF. WeidnerF. WeidnerF. WeidnerY. YuanY. YuanW. L. YuanQ. OuyangS. S. FangC. Y. GuanF. NerlingF. NerlingF. NerlingY. B. LiuY. B. LiuY. B. LiuJ.l. ZhangJ.l. ZhangJ.l. ZhangHuanhuan LiuHuanhuan LiuF.e. MaasF.e. MaasDong E. LiuX. H. LiL. WollenbergL. WollenbergL. WollenbergXingchao DaiSi LiSi LiSi LiM. KuessnerM. KuessnerM. KuessnerTao SunY. H. XieY. H. XieY. H. XieM. MaggioraLei ZhaoK. GoetzenK. GoetzenK. GoetzenC. Z. YuanN. CaoA. ZhemchugovA. ZhemchugovA. ZhemchugovP. W. LuoP. W. LuoP. W. LuoI. UmanI. UmanI. UmanL. K. LiL. K. LiP. PatteriP. PatteriS. JaegerS. JaegerS. JaegerH.x. YangH.x. YangH.b. LiuH.b. LiuH.b. LiuV. RodinV. RodinV. RodinY.x. YangY.x. YangY.x. YangX. B. JiK.y. LiuK.y. LiuK.y. LiuBingxuan LiuBingxuan LiuBingxuan LiuG. WilkinsonG. WilkinsonG. WilkinsonM. HimmelreichM. HimmelreichM. HimmelreichG. Y. TangG. Y. TangW. S. ChengW. S. ChengYao ZhangYao ZhangS.h. ZhuS.h. ZhuS.h. ZhuA. GilmanA. GilmanA. GilmanGuang ZhaoGuang ZhaoF. CossioF. CossioJie ZhaoC. Q. FengHai-tian WangZ.l. HouZ.l. HouXingguo LiXingguo LiXingguo LiH. M. HuA. MangoniA. MangoniA. MangoniJie YuJie YuJie YuG. MezzadriG. MezzadriK. J. ZhuJ. W. ZhangT. Y. QiT. Y. QiT. Y. QiT. YuT. YuT. YuX. K. ZhouX. K. ZhouX. K. ZhouWenbin QianWenbin QianWenbin Qian

subject

PhysicsNuclear and High Energy Physics010308 nuclear & particles physicsBESIIIExcited ρ statesExcited ω states01 natural sciencesResonance (particle physics)lcsh:QC1-999NOlaw.inventionNuclear physicslaw0103 physical sciencesϕ(2170)Center of mass010306 general physicsColliderlcsh:PhysicsBESIII; Excited ρ states; Excited ω states; ϕ(2170)

description

Abstract Born cross sections for the processes e + e − → ω η and e + e − → ω π 0 have been determined for center-of-mass energies between 2.00 and 3.08 GeV with the BESIII detector at the BEPCII collider. The results obtained in this work are consistent with previous measurements but with improved precision. Two resonant structures are observed. In the e + e − → ω η cross sections, a resonance with a mass of ( 2176 ± 24 ± 3 ) MeV / c 2 and a width of ( 89 ± 50 ± 5 ) MeV is observed with a significance of 6.2σ. Its properties are consistent with the ϕ ( 2170 ) . In the e + e − → ω π 0 cross sections, a resonance denoted Y ( 2040 ) is observed with a significance of more than 10σ. Its mass and width are determined to be ( 2034 ± 13 ± 9 ) MeV / c 2 and ( 234 ± 30 ± 25 ) MeV , respectively, where the first uncertainties are statistical and the second ones are systematic.

https://doi.org/10.1016/j.physletb.2020.136059