6533b860fe1ef96bd12c2e79
RESEARCH PRODUCT
Measurement of theDs+→ℓ+νℓbranching fractions and the decay constantfDs+
Y. H. GuanL. XiaG. F. ChenX. C. LouX. C. LouKai LiuW. G. LiJ. MinJ. Y. ZhangXiangdong RuanJ. H. LiuS. SpataroX. P. XuQ. LiuB. KopfI. B. NikolaevY. NefedovKe WangJ. H. YinLei LiH. M. LiuK. H. RashidL. L. MaL. GongR. KliemtY. K. HengM. ShaoY. T. GuJ. J. XuK. L. HeY. B. LiH. LiangQ. P. JiL. G. XiaA. AmorosoG. F. CaoJie YuBibo KeJ. S. HuangH. J. LiE. FioravantiP. F. DuanW. B. YanCui LiC. X. LiuM. Z. WangJimin ZhaoFenfen AnQ. L. XiuM. N. AchasovA. DbeyssiI. UmanYunlong ZhangGiulietto FeliciD. BettoniY. DingB. L. WangA. Q. GuoB. J. LiuX. L. KangA. SarantsevY. H. ZhengCong-feng QiaoS. PacettiT. J. MinK. J. ZhuJin LiD. H. WeiO. AlbayrakJ. S. LangeJ. L. ZhangQ. W. ZhaoM. H. GuT. C. ZhaoR. PolingM. KornicerM. H. YeJianping ZhengW. M. SongN. Yu. MuchnoiS. Z. ChenS. ZhuX. S. KangH. Y. ShengKe LiP. LarinA. JulinC. X. YuA. CalcaterraZ. G. ZhaoTao LuoZ. H. WangL. D. LiuW. KühnY. H. ZhangW. P. WangM. G. ZhaoR. P. GuoZ. H. QinL. Y. DongGuangshun HuangC. LengJ. J. ZhangF. De MoriM. Y. DongY. N. ZhangK. GoetzenB. ZhengR. G. PingZ. A. ZhuY. J. MaoM. DestefanisH. X. YangJ. Z. BaiM. TiemensW. J. ZhengL. YanB. X. YuZhi ZengL. ZottiC. HuA. ZalloD. Y. LiuJ. B. JiaoX. TangX. K. ChuI. GarziaH. B. LiuJ. M. BianZhenyu ZhangS. J. ZhaoW. C. YanX. Y. ZhouJ. H. ZouZ. Y. WangM. BertaniZ. HaddadiY. X. XiaS. H. ZhuYu ZhangL. YangA. YuncuH. S. ChenJ. P. LiuS. S. SunZ. J. SunH. LoehnerL. P. ZhouJ. G. MesschendorpE. H. ThorndikeJ. P. DaiC. P. ShenL. J. WuC. F. RedmerXiaocong AiX. B. JiH. L. DaiIgor BoykoY. M. MaH. H. ZhangPeilian LiuX. F. WangJ. C. ChenQiunan XuM. ShiLingxuan ZhangZ. P. MaoS. Q. ZhangL. Q. QinJ. Q. ZhangH. P. ChengK. J. ZhuF. FeldbauerY. J. MoNasser Kalantar-nayestanakiR. E. MitchellP. PatteriJ. FangTao LiX. H. MoL. S. WangQ. M. MaM. H. YeC. Morales MoralesB. KlossZ. T. SunX. K. ZhouFang LiuZ. GaoX. Y. NiuX. C. ChenCh. RosnerH. J. LuJ. G. LuBingxuan LiuZ. A. LiuY. YuanC. DongY. S. ZhuX. T. HuangL. L. WangH. CaiI. DenysenkoV. PrasadJie ZhaoD. X. LinM. MaggioraLing ZhaoY. B. ZhaoS. SosioA. A. ZafarG. RongH. S. ChenH. M. HuT. WeberG. CibinettoH. B. LiW. GradlM. RipkaG. LiR. Baldini FerroliF. E. MaasY. BanP. WeidenkaffA. G. DenigYaquan FangC. L. LuoS. P. WenX. S. QinX. R. ZhouLei ZhaoB. Y. ZhangT. HuZ. L. HouJoachim PetterssonQ. J. XuD. Y. WangG. F. XuM. QiH. J. YangW. ShanC. D. FuC. Q. FengJ. DongCheng LiJ. W. ZhangO. BakinaX. R. ChenQ. P. JiX. N. LiY. WangZ. Y. DengC. C. ZhangS. JinK. SchoenningQ. Y. LiB. S. ZouHaiping PengB. ZhongL. B. GuoLiqing XuP. X. ShenX. Y. ShenZ. WuXingguo LiL. W. JiangX. L. JiZhiqing ZhangG. A. ChelkovC. Z. YuanY. Q. WangH. MuramatsuS. B. LiuY. GuoUlrich WiednerX. LiuH. R. QiTalib HussainX. Y. SongZ. J. XiaoSerkant Ali CetinS. NisarC. J. TangT. MaS. QianJialun PingY. G. XieK. ZhangX. Y. ZhangM. LaraJ. B. LiuY. HuY. J. SunE. BogerS. X. DuY. P. LuY. P. LuZ. L. DouH. H. LiuJ. C. LiJ. ZhuangS. J. ChenXiao-rui LyuB. WangM. X. LuoYucheng HuangD. V. DedovichD. XiaoS. HanX. Y. JiangG. S. VarnerM. M. MaP. R. LiL. H. WuM. SavrieX. Y. GaoY. PanG. X. SunJ. V. BennettZ. JiaoFu-hu LiuD. H. ZhangJun-yi ZhangY. P. GuoZ. P. ZhangD. W. BennettZujian WangX. N. MaY. T. LiangM. FritschM. KavatsyukI. TapanY. H. YanJ. W. ZhaoY. C. ZhuB. X. ZhangH. XiaoT. HeldD. J. AmbroseX. FangZ. L. HuangFeng LiuM. AlbrechtW. D. LiM. AblikimS. SchumannYao WangJ. F. SunS. MarcelloY. ZengY. B. ChenXiaofeng ZhuJ. Z. ZhangKrisztian PetersG. R. LiaoJ. F. HuXiaozhong HuangChi ZhangAndrzej KupscW. L. YuanM. L. ChenP. L. WangX. L. LuoW. P. WangF. BianchiXian GaoQ. OuyangM. UllrichS. S. FangY. B. LiuZhiqing LiuT. JohanssonJ. F. ChangO. B. KolcuX. CaiX. Q. HaoF. A. HarrisMagnus WolkeY. F. LiangS. L. NiuZ. NingD. P. JinP. L. WangF. Y. LiX. Q. LiM. GrecoJ. Y. LiuDayong WangN. QinQ. GaoY. N. GaoK. Y. LiuY. ZhangQ. AnZ. B. LiW. Ikegami AnderssonJ. Z. FanA. ZhemchugovF. LiY. F. WangF. C. MaR. FarinelliX. Y. MaW. X. GongJ. F. QiuL. FavaH. L. MaD. M. LiF. NerlingM. PelizaeusY. X. YangX. H. SunA. HafnerQ. ZhaoY. Z. SunXiang ZhouGang ZhaoP. KieseS. L. OlsenRoy A. BriereX. S. JiangO. CakirZ. G. WangH. Y. Zhangsubject
PhysicsNuclear physics010308 nuclear & particles physicsElectron–positron annihilation0103 physical sciencesAnalytical chemistryB mesonExponential decay010306 general physicsBranching (polymer chemistry)01 natural sciencesdescription
Using 482 pb(-1) of e(+) e(-) collision data collected at a center-of-mass energy of root s = 4.009 GeV with the BESIII detector, we measure the branching fractions of the decays D-s(+) -> u(+)v(u) and D-s(+) -> tau(+)v(tau). By constraining the ratio of decay rates of Ds(+) to tau(+)v(u) and to u(+)v(u) to the Standard Model prediction, the branching fractions are determined to be B(D-s(+) -> u(+)v(u) = (0.495 +/- 0.067 +/- 0.026)% and B(D-s(+) -> tau(+)v(tau) = (4.83 +/- 0.65 +/- 0.26)% Using these branching fractions, we obtain a value for the decay constant f(Ds+) of (241.0 +/- 16.3 +/- 6.5) MeV, where the first error is statistical and the second systematic.
year | journal | country | edition | language |
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2016-10-12 | Physical Review D |