6533b7d7fe1ef96bd12682b7
RESEARCH PRODUCT
Measurement of the Branching Fraction For the Semileptonic Decay D0(+)→π−(0)μ+νμ and Test of Lepton Flavor Universality
J. PellegrinoM. QiH. J. YangM. MaggioraLing ZhaoW. M. SongKrisztian PetersF. De MoriLei ZhaoZ. L. HouMeng WangX. Y. ZhouR. PolingM. AlbrechtY. DingG. R. LiaoMichael PapenbrockQ. A. MalikG. MezzadriX. Q. HeB. J. LiuB. Q. WangB. X. YuJun-yi ZhangD. BettoniY. P. GuoX. F. WangS. B. LiuZ. J. XiaoL. P. ZhouZ. P. ZhangW. KühnX. L. JiC. Z. YuanY. M. MaZ. P. MaoMinglin MaP. L. ChenZhi ZengZ. Y. YouZ. A. ZhuD. W. BennettZujian WangQ. M. MaH. CaiM. KuhlmannY. BaiJ. FangX. K. ZhouFang LiuF. F. AnZ. GaoA. MustafaC. P. ShenY. J. MaoI. DenysenkoW. C. YanP. L. WangH. X. YangJ. MinP. MusiolC. F. RedmerJ. F. ChangI. GarziaCh. RosnerM. KuemmelC. SchnierY. YuanY. S. ZhuM. BertaniYu ZhangMagnus WolkeY. F. LiangB. Y. ZhangX. L. LuoD. P. JinC. SowaY. B. ZhaoW. ShanJ. DongY. F. WangX. T. HuangX. H. MoX. N. MaY. Q. WangHuihui LiuS. NisarC. J. TangL. S. WangY. HuM. H. YeY. P. LuZ. A. LiuF. BianchiM. H. GuP. L. WangD. XiaoX. Y. JiangJ. C. ChenIgor BoykoJ. V. BennettZahra HaddadiB. KopfDayong WangN. QinJ. P. LiuY. PanJ. ChaiH. Y. ShengG. X. SunZ. G. WangJ. G. MesschendorpH. Y. ZhangX. Y. NiuZ. JiaoFu-hu LiuD. H. ZhangH. J. LuJ. G. LuT. HussainX. Y. MaT. HoltmannHaiwen LiuY. X. XiaS. H. ZhuY. BanL. J. WuC. X. YuQ. LiuM. FritschW. X. GongY. J. MoY. G. XieKai LiuX. TangGuangshun HuangQiunan XuH. LiangF. A. HarrisDan WangL. YanM. KuessnerF. E. MaasT. HuA. YuncuM. RoloXiaozhong HuangJ. Y. LiuS. QianJialun PingA. AmorosoK. ZhangB. ZhengA. DbeyssiK. L. HeBibo KeH. LeithoffR. G. PingL. ZhangY. NefedovJ. F. SunO. BakinaAndrzej KupscM. KavatsyukM. N. AchasovH. S. ChenT. WeberS. X. DuQ. P. JiW. B. YanX. Y. ZhangL. L. WangY. H. ZhengKe WangCong-feng QiaoX. H. SunL. L. MaL. GongS. MarcelloX. R. ChenM. LaraY. J. SunF. LiJ. Y. ZhangF. C. MaJianhao ZhangA. CalcaterraZ. L. DouY. P. LuQ. GaoY. N. GaoK. J. ZhuM. Z. WangJimin ZhaoS. L. NiuS. PacettiLiqing XuX. Y. ShenP. X. ShenZ. WuY. ZengN. Yu. MuchnoiX. S. KangKe LiuM. RichterZ. NingJ. J. XuY. H. ZhangGueorgui ChelkovF. Y. LiX. Q. LiY. F. LongY. X. ZhouM. GrecoB. X. ZhangP. F. DuanZhiqing ZhangA. Q. GuoG. RongKe LiM. Y. DongPeilian LiuCui LiJ. S. HuangXiaofeng ZhuJ. Z. ZhangP. L. LiYaquan FangJ. F. QiuL. FavaT. KhanW. D. LiZongyuan WangX. LiuB. L. WangA. PitkaC. X. LiuZ. Y. WangYi ChenJ. J. SongZhiyong ZhangL. SunZ. T. SunX. K. ChuG. CibinettoM. TiemensC. LengYunlong ZhangH. R. QiH. B. LiuT. C. ZhaoB. T. TsedneeXiao-rui LyuS. AhmedY. X. YangJin LiP. WeidenkaffF. H. HeinsiusKang LiR. A. BriereA. JulinJ. Z. BaiF. FeldbauerK. SchoenningQ. Y. LiB. S. ZouJ. L. ZhangYang ZhangK. Y. LiuM. H. YeNiklaus BergerSerkant Ali CetinJianping ZhengS. P. WenX. R. ZhouJ. H. ZouCheng LiZ. B. LiW. Ikegami AnderssonS. ZhuX. CaiS. S. SunK. GoetzenW. P. WangJ. Q. ZhangZ. L. HuangD. Y. LiuJ. B. JiaoY. G. GaoFeng LiuJ. ZhuL. KochA. KhoukazOrhan CakirQ. ZhaoP. KieseDmitri DedovichZ. H. QinY. Z. SunYuekun HengG. S. VarnerM. G. ZhaoY. H. YangR. P. GuoR. Baldini FerroliG. Y. TangH. L. DaiX. S. QinS. L. OlsenQ. OuyangS. S. FangXiang ZhouM. DestefanisW. G. LiJie ZhaoX. L. GaoD. X. LinS. Q. ZhangX. S. JiangAlexey ZhemchugovH. M. HuI. TapanY. H. YanY. K. SunR. E. MitchellL. YangJ. B. LiuL. D. LiuJ. W. ZhaoL. Y. DongQ AnJ. M. BianGang ZhaoC. DongS. SosioQ. P. JiS. SpataroX. P. XuS. J. ZhaoY. C. ZhuY. B. LiuX. N. LiYao WangHaiping PengJoachim PetterssonQ. J. XuLei LiI. UmanXuanhong LouR. FarinelliH. XiaoE. BogerT. HeldNasser Kalantar-nayestanakiHuanhuan LiuG. F. XuC. Morales MoralesG. FeliciP. LarinG. F. CaoF. NerlingH. L. MaD. M. LiZhiqing LiuW. GradlM. RipkaJ. P. DaiZ. G. ZhaoS. FeganI. B. NikolaevX. Y. SongT. JohanssonH. J. LiJ. H. YinO. B. KolcuM. PelizaeusM. ShaoY. T. GuQ. L. XiuH. H. ZhangD. Y. WangL. LavezziZ. J. SunX. Q. HaoE. FioravantiX. L. KangA. SarantsevD. H. WeiP. R. LiP. R. LiJ. S. LangeJ. C. LiJ. ZhuangA. DenigM. X. LuoM. L. ChenH. B. LiC. L. LuoC. C. ZhangB. ZhongH. MuramatsuUlrich WiednerM. KornicerT. MaZ. Y. DengZ. X. MengX. A. XiongA. A. ZafarK. H. RashidY. T. LiangK. J. LiV. PrasadS. HanYi-tao WangYi-tao WangL. H. WuM. SavrieYi JinL. XiaY. J. XiaoBingxuan LiuS. JinYao ZhangG. LiM. AblikimSai-juan ChenC. D. FuC. Q. FengXingguo LiX. B. JiP. PatteriR. KliemtJie YuGuo-ming ChenT. J. MinK. J. ZhuY. H. Xiesubject
Semileptonic decayPhysicsParticle physics010308 nuclear & particles physicsBranching fractionElectron–positron annihilation0103 physical sciencesPiGeneral Physics and Astronomy010306 general physics01 natural sciencesFlavorLeptondescription
Using a data sample corresponding to an integrated luminosity of 2.93 fb(-1) taken at a center-of-mass energy of 3.773 GeV with the BESIII detector operated at the BEPCII collider, we perform an analysis of the semileptonic decays D0(+) -> pi(-(0))mu(+)nu(mu ). The branching fractions of D-0 -> pi(-)mu(+)nu(mu), and D+ -> pi(0)mu(+)nu(mu ) are measured to be (0.272 +/- 0.008(start) +/- 0.006(syst))% and (0.350 +/- 0.011(star) +/- 0.010(syst))%, respectively, where the former is of much improved precision compared to previous results and the latter is determined for the first time. Using these results along with previous BESIII measurements of D0(+) -> pi(-(0))e(+)nu(e), we calculate the branching fraction ratios to be R-0 BD0 -> pi(-)mu(+)nu mu BD0 -> pi(-)e(+)nu e=0.922 +/- 0.030(start) +/- 0.022(syst) and R+ BD+ -> pi(0)mu(+)nu mu/BD+ -> pi(0)e(+)nu e= 0.964 +/- 0.037(start) +/- 0.026(syst), which arc compatible with the theoretical expectation of lepton flavor universality within 1.7 sigma and 0.5 sigma, respectively. We also examine the branching fraction ratios in different four-momentum transfer square regions, and find no significant deviations from the standard model predictions.
year | journal | country | edition | language |
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2018-10-26 | Physical Review Letters |