Search for the Decays D+→φe+ν,D+→φK－π+e+ν,D0→φK－e+νand D0→φK－μ+ν

BES Collaboration

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2002, Vol. 26> Issue(11) : 1093-1102

Search for the Decays D⁺→φe⁺ν,D⁺→φK^－π⁺e⁺ν,D⁰→φK^－e⁺νand D⁰→φK^－μ⁺ν

BES Collaboration

Institute of High Energy Physics, CAS, Beijing 100039, China

Abstract
HTML
Reference
Related

PDF

Abstract：
We report the results of a search for the semileptonic decays D⁺→e⁺ν,D⁺→K^－π⁺e⁺ν,D⁰→K^－e⁺ν and D⁰→K^－μ⁺ν using the BES detector at the BEPC e⁺e^－ Collider. Using a data sample of 22.3pb^－1 collected at the center of mass energy s=4.03GeV, we select 2472±87D 0 tag DX and 7628±149D 0 tag DX singly tagged D events, where the X could be γ, π 0 and/or π^±. Based on the method of "combined D⁺and D⁰ single and double tags", we determine that 2471±218 D⁺X and 7629±251 D⁰ X are contained in the recoil side of the singly tagged neutral and charged D mesons, respectively. No events for the 4 semileptonic decay modes are observed in the recoil side of the tagged D mesons. The 90% confidence level upper limits of B(D⁺→e⁺ν)<1.38%,B(D⁺→K^－π⁺e⁺ν)<2.01%,B(D⁰→K^－e⁺ν)<0.53% and B(D⁰→K^－μ⁺ν)<0.53% are determined from the search for the semileptonic decays of D⁺ and D⁰.

References

[1]

　Abreu P et al.DELPHI Collab.,Zeit.Phys.1994,C61:1;OPAL Collab.,A .Akersetal.An Investigation of BS Oscillation Using BS Enhanced Samples.Contributed paper to International Europhysics Conference on High Energy Physics EPS 0276,Brus sels,July1995, 2　BAI J Z et al.N .I.M .1994,A344:319—334;DING HuiLiang et al.HEPNP ,1992,16(9):669(in Chinese) (丁慧良等.高能物理与核物理,1992,16(9):669) 3　RONG Gang et al.HEPNP ,2002,26(3):207(in Chinese) (荣刚等.高能物理与核物理,2002,26(3):207)4　Particle Data Group,Bartels J et al.Eur.Phys.J.,2000,C15:5445　BAI Z et al(MARK Ⅲ Collaboration).PRL ,1991,66:1011

[1]	LI Jing-Wu , XUE Dan-Qing , XU Qing-Qiang , WU Xiang-Yao . D⁺ → η^(')l⁺ν_l semileptonic decays in light-cone sum rules. Chinese Physics C, 2011, 35(6): 519-524. doi: 10.1088/1674-1137/35/6/001
[2]	CHEN Lan-Li , XU Wen-Na , WANG Xue-Lei . Study of the Top-Pion Production Processes pp(pp)→Π0tΠ0t,bΠ0t at the Hadron Colliders. Chinese Physics C, 2007, 31(3): 232-235.
[3]	SHEN Peng-Nian , GUO Feng-Kun , JIANG Huan-Qing , ZOU Bing-Song . D₀ Non-strange 0⁺ Heavy Mesons Have Molecular Structure in the Heavy Chiral Unitary Approach. Chinese Physics C, 2007, 31(9): 870-873.
[4]	CHEN Jun-Xiao , HOU Zhao-Yu , LI Ying , . Branching ratio of rare decay B⁰(B_s)→γνν. Chinese Physics C, 2006, 30(4): 289-293.
[5]	WU Xiang-Yao , LIU Xiao-Jing , GONG Pi-Feng , LI Qi-Lang , SHI Zong-Hua , GUO Yi-Qing . Study of D⁰→π^－l⁺ν_l Decay. Chinese Physics C, 2006, 30(11): 1048-1052.
[6]	Medina Ablikim , CHEN Jiang-Chuan , RONG Gang , ZHANG Da-Hua . Cabbibo Suppressed Semileptonic Decay D0→π－e+ve. Chinese Physics C, 2005, 29(1): 5-8.
[7]	YU You-Wen , ZHANG Zong-Ye . Ω+Ω→(ΩΩ)(0+) Scalar Meson Cross Section Calculation. Chinese Physics C, 2004, 28(12): 1261-1263.
[8]	WU Xiang-Yao , CAO Xue-Lei , YIN Xin-Guo . Nonfactorization in D⁺→K⁰K⁺ Decays. Chinese Physics C, 2004, 28(2): 129-133.
[9]	. Study of Exclusive Hadronic Decays for D0→Ks0π+π- and D0→Ks0K+K- and Their Resonant Structures. Chinese Physics C, 2004, 28(1): 1-10.
[10]	BES Collaboration . Branching Ratios of J/ψ→π⁰3(π⁺π^－). Chinese Physics C, 2002, 26(1): 8-16.
[11]	BES Collaboration . Measurement of Inclusive Semileptonic Branching Fractions for D^－→e^－X and D⁰→e^－X. Chinese Physics C, 2002, 26(6): 547-556.
[12]	RONG Gang , ZHAO Jia-Wei , LUO Chun-Hui , YAN Wu-Guang , XU Chun-Cheng , ZHANG Da-Hua , HENG Yue-Kun , HE Kang-Lin , ZHAO Hai-Wen , MAO Hui-Shun , MA Ji-Mao , CHEN Hong-Fang , ZHANG Chun . A Method of Combined D⁰ and D⁺ Single and Double Tags to Measure Their Branching Fractions and Its Application. Chinese Physics C, 2002, 26(3): 207-215.
[13]	BES Collaboration . Measurements of the Branching Ratios for the Decays J/ψ→γπ⁰,γη, γη'→ 3γ at BES. Chinese Physics C, 1997, 21(5): 385-392.
[14]	BES Collaboration . Measurement of the Branching Ratios of τ^±→π^±+nπ⁰+ν_τ(n=0,1,2) decays. Chinese Physics C, 1997, 21(3): 193-200.
[15]	LIU Liang-Gang . ρ⁰-ω Mixing Effect in the (ρ⁰,ω)→e⁺e^－ Pair Decay. Chinese Physics C, 1993, 17(7): 614-618.
[16]	ZHANG Zhao-Xi , CHEN Yu-Qi . The Production of B_c⁽B_c) Meson Through Z⁰ Boson Decay. Chinese Physics C, 1992, 16(4): 335-339.
[17]	YU You-Wen , SHEN Peng-Nian . THE EFFECTIVE TWO-MESON-EXCHANGE POTENTIAL DERIVED FROM THE QUARK-ANTIQUARK PAIR CREATION MODEL. Chinese Physics C, 1989, 13(6): 530-534.
[18]	LIU Yao-Yang . RADIATIVE DECAY OF Z⁰ AND HEAVY LEPTON. Chinese Physics C, 1985, 9(4): 505-507.
[19]	MA ZHONG-QI , DONG FANG-XIAO , YUE ZONG-WU , ZHOU XIAN-JIAN , XUE PEI-YOU . D⁰-MESON DECAYS Γ（D⁰→K⁺K^-）/Γ（D⁰→π⁺π^-）. Chinese Physics C, 1981, 5(1): 130-133.
[20]	Xie Chu-bing . THE ABSOLUTE YIELD OF THE SECONDARY HADRONS IN pp COLLISIONS AND THE RULE OF L=1 MESON PRODUCTION. Chinese Physics C, 1980, 4(4): 466-477.

Access

Get Citation

BES Collaboration. Search for the Decays D⁺→φe⁺ν,D⁺→φK^－π⁺e⁺ν,D⁰→φK^－e⁺νand D⁰→φK^－μ⁺ν[J]. Chinese Physics C, 2002, 26(11): 1093-1102.

BES Collaboration. Search for the Decays D⁺→φe⁺ν,D⁺→φK^－π⁺e⁺ν,D⁰→φK^－e⁺νand D⁰→φK^－μ⁺ν[J]. Chinese Physics C, 2002, 26(11): 1093-1102. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2002-02-22
Revised: 1900-01-01

Article Metric

Article Views(2638)
PDF Downloads(646)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Search for the Decays D⁺→φe⁺ν,D⁺→φK^－π⁺e⁺ν,D⁰→φK^－e⁺νand D⁰→φK^－μ⁺ν

BES Collaboration

Institute of High Energy Physics, CAS, Beijing 100039, China

Received Date: 2002-02-22
Accepted Date: 1900-01-01
Available Online: 2002-11-05

Abstract: We report the results of a search for the semileptonic decays D⁺→e⁺ν,D⁺→K^－π⁺e⁺ν,D⁰→K^－e⁺ν and D⁰→K^－μ⁺ν using the BES detector at the BEPC e⁺e^－ Collider. Using a data sample of 22.3pb^－1 collected at the center of mass energy s=4.03GeV, we select 2472±87D 0 tag DX and 7628±149D 0 tag DX singly tagged D events, where the X could be γ, π 0 and/or π^±. Based on the method of "combined D⁺and D⁰ single and double tags", we determine that 2471±218 D⁺X and 7629±251 D⁰ X are contained in the recoil side of the singly tagged neutral and charged D mesons, respectively. No events for the 4 semileptonic decay modes are observed in the recoil side of the tagged D mesons. The 90% confidence level upper limits of B(D⁺→e⁺ν)<1.38%,B(D⁺→K^－π⁺e⁺ν)<2.01%,B(D⁰→K^－e⁺ν)<0.53% and B(D⁰→K^－μ⁺ν)<0.53% are determined from the search for the semileptonic decays of D⁺ and D⁰.