6533b7d8fe1ef96bd126ab8d

RESEARCH PRODUCT

Search forηandη′invisible decays inJ/ψ→ϕηandϕη′

Xiangdong RuanQ. LiuLei ZhaoY. BanP. WeidenkaffY. H. ZhengCong-feng QiaoO. AlbayrakM. MaggioraM. MaggioraLing ZhaoYongmei HuangX. S. QinJ. L. FuZ. Y. HeY. M. ZhuX. Q. LiM. GrecoM. GrecoYang YangD. Y. WangY. D. WangWei LiX. T. LiaoH. Y. ShengK. PetersM. H. GuQun-yao WangLili ZhangN. Yu. MuchnoiHeng-yun YeY. H. ZhangL. G. XiaG. M. XuC. X. YuC. Z. YuanF. C. MaB. ZhengR. G. PingQ. G. WenC. S. JiCheng LiC. HuX. TangK. Y. LiuK. X. ZhaoZ. G. ZhaoQ. J. XuD. J. AmbroseC. ZhuZ. Y. WangY. F. WangZ. XueQ. P. JiG. F. XuA. ZalloY. F. LiangH. X. YangL. S. WangY. T. LiangZhiqing LiuD. P. JinM. BertaniG. X. SunT. HussainB. SpruckE. H. ThorndikeJ. M. BianX. Y. MaLi YanZhenyu ZhangW. LaiX. N. LiHai YuW. X. GongL. Q. QinI. B. NikolaevJ. C. LiYang QinZ. JiaoFu-hu LiuC. Q. FengJ. F. ChangK. J. ZhuXuantong ZhangH. H. ZhangY. X. XiaX. Y. SongDayong WangP. L. LiuY. T. GuJ. F. QiuM. YeG. R. LiaoM. G. ZhaoC. L. MaF. F. JingY. DingJianhao ZhangZ. B. LiY. H. GuanKe WangHuihui LiuJ. C. ChenShan WangJ. ZhuangKai LiuQ. A. MalikJ. P. LiuY. J. SunJ. G. MesschendorpC. H. LiJ. Q. ZhangS. MaX. K. ZhouM. ShaoZhiqiang LiuMiao HeX. CaiKejun ZhuD. TothE. PrencipeW. D. LiM. X. LuoNasser Kalantar-nayestanakiB. J. LiuG. R. LuY. X. YangO. BondarenkoH. J. LuJ. G. LuC. GengZ. T. SunJifeng HuM. N. AchasovX. R. LiQ. J. LiQiunan XuQ. OuyangM. KavatsyukJian WeiYucheng HuangD. V. DedovichC. Morales MoralesX. LiuFeng XueCui LiD. H. ZhangV. V. BytevS. X. WuS. S. FangZ. G. WangH. Y. ZhangM. L. ChenZ. J. XiaoHaiwen LiuJ. S. HuangZ. A. ZhuH. P. ChengJ. FangM. R. ShepherdG. S. VarnerC. X. LiuI. TapanS. L. LiY. P. GuoW. GradlZ. NingJoong-won ParkZujian WangG. F. ChenHang LiuT. C. ZhaoY. B. LiuT. GuoY. H. YanRui ZhangB. X. ZhangJ. W. ZhaoL. FavaF. E. MaasS. SpataroS. SpataroX. P. XuT. HuD. X. LinSerkant Ali CetinS. L. OlsenRoy A. BriereJ. Y. ZhangY. NefedovX. S. JiangZ. L. HouZhenghao ZhangA. SarantsevD. H. WeiChi ZhangJ. S. LangeR. B. FerroliD. Cronin-hennessyH. M. HuX. H. ZhaoB. Y. ZhangK. LiFang LiuH. B. LiD. H. SunA. G. DenigC. NicholsonM. H. YeC. L. LuoK. GoetzenJ P DaiW. KuehnY. B. ZhaoQ. ZhaoY. C. ZhuO. CakirJ. MinShou-hua ZhuTao LuoYun-zhi ZhangI. DenysenkoC. C. ZhangB. ZhongL. B. GuoS. QianJialun PingC. P. ShenH. B. LiuZ. P. MaoH. LiangY. Z. SunX. R. ZhouLei LiJ. V. BennettT. HeldM. UllrichP. L. WangH. P. PengX. Y. ZhangHongsheng ZhaoQi-wen LüR. PolingY. Q. WangYulei HanG. F. CaoUlrich WiednerQiang ZhaoB. KopfB. X. YuGuangming HuangX. T. HuangX. L. WangJianping ZhengN. WuC. J. TangW. B. YanM. KornicerM. AblikimKai LiuS. P. YuG. A. ChelkovG. A. ChelkovK. L. HeL. Y. DongF. F. AnT. MaZ. ZhongM. LvZ. A. LiuE. BogerE. BogerQ. L. XiuZhiqing ZhangX. L. JiY. P. LuB. S. ZouA. Q. GuoG. RongM. Z. WangM. DestefanisM. DestefanisF. Y. LiH. S. ChenP. L. WangF. A. HarrisShujun ZhaoX. L. LuoQ. P. JiA. CalcaterraL. HuangH. L. DaiIgor BoykoS. PacettiS. PacettiB. Q. WangJ. B. JiaoY. G. XieW. M. DingYuekun HengLi ZhouZ. J. SunH. LoehnerS. H. ZhangGang ZhaoX. Y. ShenS. X. DuJ. F. SunM. LeyheZ. H. QinM. Y. DongM. WernerM. QiFeng LiuY. ZengZhihao XuChuan LiuH. B. LiuQ. AnJ. H. ZouY. B. ChenJ. Z. ZhangXuejun WangS. S. SunX. H. MoJürgen BeckerR. E. MitchellL. L. WangXiao-tong LuZ. WuH. L. MaD. M. LiH. MuramatsuL. L. JiangM. PelizaeusY. J. MaoP. FriedelY. N. GaoWei WuA. ZhemchugovA. ZhemchugovS. P. WenQ. M. MaY. YuanY. S. ZhuL. H. WuS. JinG. LiC. D. FuZ. Y. DengXingguo LiJ. Z. BaiY. P. ChuA. A. ZafarS. B. LiuX. B. JiK. H. RashidXiao Dong ChenJie YuS. J. ChenG. S. HuangT. J. MinX. L. ZhuB. D. Schaefer

subject

PhysicsNuclear and High Energy PhysicsParticle physicsElectron–positron annihilationHigh Energy Physics::ExperimentNuclear ExperimentLight dark matterBosonGamma gamma

description

Using a sample of (225.3 +/- 2.8) x 10(6) J/psi decays collected with the BESIII detector at BEPCII, searches for invisible decays of eta and eta ' in J/psi -> phi eta and phi eta ' are performed. Decays of phi -> K+K- are used to tag the eta and eta ' decays. No signals above background are found for the invisible decays, and upper limits at the 90% confidence level are determined to be 2.6 x 10(-4) for the ratio B(eta -> invisible)/B(eta ->gamma gamma) and 2.4 x 10(-2) for B(eta '-> invisible)/B(eta '->gamma gamma). These limits may be used to constrain light dark matter particles or spin-1 U bosons. DOI: 10.1103/PhysRevD.87.012009

https://doi.org/10.1103/physrevd.87.012009