6533b860fe1ef96bd12c2ded

RESEARCH PRODUCT

Measurement of thee+e−→ηJ/ψcross section and search fore+e−→π0J/ψat center-of-mass energies between 3.810 and 4.600 GeV

Y. B. ChenS. B. LiuL. B. GuoD. H. WeiR. G. PingO. BondarenkoG. S. HuangZ. G. WangK. PetersS. HanM. SavrieX. Y. GaoT. WeberJ. F. SunC. F. RedmerM. AblikimH. Y. ZhangHaiwen LiuH. P. HuangY. J. MoY. J. SunS. MaKai LiuS. S. SunX. H. MoX. M. LiK. ZhangX. N. MaL. S. WangY. T. LiangZ. HaddadiL. YangI. DenysenkoH. S. ChenJ. H. YinK. H. RashidX. K. ZhouJ. S. LangeJ. Y. ZhangU. WiednerD. TothS. MarcelloS. MarcelloJ. P. DaiG. ChenI. UmanY. P. GuoC. F. QiaoH. S. ChenF. F. AnY. HuangF. C. MaE. FioravantiX. P. XuY. B. ZhaoLei LiW. X. GongQ. LiuQ. J. XuX. K. ChuH. B. LiuB. X. YuQ. P. JiG. R. LiaoF. FeldbauerJ. Q. ZhangW. D. LiD. DedovichW. L. YuanH. H. ZhangM. UllrichM. FritschX. L. LiG. S. VarnerM. X. LuoS. S. FangX. L. KangQ. W. ZhaoJ. S. HuangZ. J. SunY. F. WangK. MoriyaLing ZhaoM. H. YeR. E. MitchellS. H. ZhangYun-zhi ZhangWei LiL. FavaL. FavaF. E. MaasM. KavatsyukY. F. LiangS. J. ZhaoX. D. RuanM. RipkaT. LuoG. X. SunXiaofeng ZhuJ. Z. ZhangZ. B. LiW. KuehnY. DingJin LiA. SarantsevA. SarantsevI. GarziaH. L. DaiM. TiemensP. WeidenkaffL. D. LiuO. CakirO. CakirB. Y. ZhangF. A. HarrisE. H. ThorndikeS. PacettiS. PacettiD. W. BennettD. BettoniG. F. CaoJ. L. ZhangZujian WangM. GrecoM. GrecoP. PatteriC. H. LiA. A. ZafarM. H. GuO. B. KolcuJ. ZhuangXiao-hai LiuT. C. ZhaoM. DestefanisM. DestefanisB. ZhongZ. JiaoM. YeY. YuanJ. P. LiuW. J. ZhengS. L. NiuL. L. MaX. Q. LiM. PelizaeusR. KliemtW. GradlJ. G. MesschendorpJ. C. ChenY. NefedovC. L. LuoM. G. ZhaoP. X. ShenZhigang WangY. P. LuC. GengQiunan XuF. NerlingA. ZalloM. LvJie YuX. C. LouX. C. LouX. L. JiD. M. LiM. BertaniL. W. JiangBibo KeX. FangJ. H. ZouJia-ju ZhangMagnus WolkeS. JinT. HussainL. YanP. L. WangW. M. SongJ. G. LuG. RongM. N. AchasovM. N. AchasovZhiqing ZhangA. AmorosoA. AmorosoS. SchumannJ. M. BianX. Y. SongG. F. XuX. F. WangK. Y. LiuD. P. JinZ. P. ZhangZhenyu ZhangT. J. MinW. LaiJ. B. WeiGiulietto FeliciG. ZhaoYao WangTord JohanssonC. P. ShenY. B. LiuH. L. MaP. R. LiH. M. HuY. GaoX. R. ZhouY. T. ZhangY. H. GuanS. L. OlsenY. GuoZhiqing LiuJ. L. PingRoy A. BriereW. P. WangR. PolingZ. WuChi ZhangBrent J. LiuC. LengZ. G. ZhaoF. BianchiF. BianchiX. Y. ZhangDayong WangN. QinP. L. LiuW. C. YanX. L. LuoX. S. JiangB. X. ZhangQun-yao WangK. LiK. LiFang LiuLei ZhouO. AlbayrakJ. W. ZhaoJ. FangLei XuL. H. WuLei ZhaoZ. Y. HeSai-juan ChenW. B. YanYang YangE. BogerE. BogerA. DenigS. ZhuC. DongS. SosioS. SosioA. DbeyssiLili ZhangD. Y. WangJ. MinC. Morales MoralesY. C. ZhuK. WangN. Kalantar-nayestanakiT. MaK. GoetzenI. BoykoH. P. PengD. H. ZhangK. L. HeH. X. YangX. S. KangHeng-yun YeV. SantoroY. H. ZhangM. Y. DongY. J. MaoJ. F. ChangZ. A. ZhuJ. Z. BaiZ. L. HouJimin ZhaoAndrzej KupscFu-hu LiuC. Q. FengYi-ming HuX. Q. HaoH. LiangR. Q. LuZ. Y. WangX. TangJ. F. HuJ. F. HuFeng LiuS. QianH. CaiW. ShanX. Y. ZhouP. L. WangY. X. YangS. SpataroS. SpataroY. T. GuY. Q. WangY. Q. WangA. HafnerYulei HanQiang ZhaoS. NisarY. Z. SunA. JulinXiang ZhouC. J. TangD. X. LinY. BanX. Y. NiuI. TapanZ. A. LiuF. De MoriF. De MoriZ. J. XiaoD. XiaoB. ZhengQ. L. XiuZ. T. SunH. B. LiL. Y. DongQ. GaoG. LiYuehong XieZ. Y. DengJ. Z. FanA. ZhemchugovA. ZhemchugovB. KlossY. S. ZhuJ. P. ZhengQ. OuyangC. X. YuYaquan FangK. SchoenningX. S. QinI. B. NikolaevI. B. NikolaevQ. P. JiL. G. XiaJianhao ZhangQ. A. MalikZhiqiang LiuZhiqiang LiuL. Q. QinH. J. LuX. CaiH. P. ChengTao LiCh. RosnerXiao-rui LyuX. Y. MaY. K. HengM. QiKejun ZhuQ. M. MaZ. H. QinD. J. AmbroseJ. F. QiuX. LiuY. H. ZhengXiaocong AiA. YuncuA. YuncuB. S. ZouC. D. FuSerkant Ali CetinLi ZhouX. R. ChenT. HuM. AlbrechtJianmin DongZ. NingL. L. JiangQ. AnY. H. YanM. LaraX. T. HuangA. CalcaterraM. MaggioraM. MaggioraD. Cronin-hennessyH. Y. ShengY. P. LuH. H. LiuH. H. LiuT. HeldJ. C. LiJ. V. BennettC. X. LiuM. L. ChenN. Yu. MuchnoiN. Yu. MuchnoiY. XiaG. CibinettoR. Baldini FerroliZ. P. MaoY. ZengF. LiS. X. DuS. P. WenX. N. LiHai YuC. C. ZhangL. L. WangH. MuramatsuM. KornicerZ. GaoP. F. DuanB. L. WangA. Q. GuoX. Y. ShenH. LoehnerY. N. PuS. G. WangJie ZhaoM. WangG. M. HuangXurong ChenC. Z. YuanB. KopfP. LarinJ. B. JiaoHuan RenJ. LiuX. B. JiYang QinM. ShaoG. ChelkovG. ChelkovG. ChelkovJoachim PetterssonL. ZottiL. ZottiCheng LiC. HuJie LiuB. WangK. J. Zhu

subject

PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsElectron–positron annihilation01 natural scienceslaw.inventionMass enhancementNuclear physicsCross section (physics)law0103 physical sciencesHigh Energy Physics::ExperimentCenter of massNuclear Experiment010306 general physicsCollider

description

Using data samples collected with the BESIII detector operating at the BEPCII collider at 17 center-of-mass energies from 3.810 to 4.600 GeV, we perform a study of e(+)e(-) -> eta J/psi and pi(0)J/psi The Born cross sections of these two processes are measured at each center-of-mass energy. The measured energy-dependent Born cross section for e(+)e(-) -> eta J/psi shows an enhancement around 4.2 GeV. The measurement is compatible with an earlier measurement by Belle.

https://doi.org/10.1103/physrevd.91.112005