Rare semileptonic decays of heavy mesons in the heavy quark limit

LI Hai-Bo; YANG Mao-Zhi

doi:10.1088/1674-1137/34/2/021

Chinese Physics C> 2010, Vol. 34> Issue(2) : 262-266 DOI: 10.1088/1674-1137/34/2/021

Rare semileptonic decays of heavy mesons in the heavy quark limit

LI Hai-Bo ,
YANG Mao-Zhi ^,

Abstract
HTML
Reference
Related

PDF

Abstract：
We study the branching ratios of D⁺→D⁰e⁺ν, D⁺_S→D⁰e⁺ν, B⁰_S→B⁺e^－ν, D⁺_S→D⁺ e^－e⁺ and B⁰_S→B⁰e^－e⁺ rare semileptonic decay processes, which are induced by decays of light quarks, the heavy quarks remain unchanged. The branching ratios of these decay processes are estimated in the heavy quark limit and with SU(3) flavor symmetry. We find that the decay rates are very tiny in the framework of the Standard Model. We also estimate the sensitivities of the measurements of these rare decays at the future experiments, such as BES-Ⅲ, super-B and LHC-b. Observations of these decays may shed some light on new physics beyond the standard model.

References

[1]

. Isgur N, Wise M B. Phys. Lett. B, 1989, 232: 1132. Caswell W E, Lepage G P. Phys. Lett. B, 1986, 167: 4373. Eichten E, Feinberg F L. Phys. Rev. Lett., 1979, 43: 1205;Phys. Rev. D, 1981, 23: 27244. Neubert M. Int. J. Mod. Phys. A, 1996, 11: 4175. Buchalla G, Buras A J, Lautenbacher M. Rev. Mod. Phys.,1996, 68: 11256. Voloshin M B. Phys. Lett. B, 2000, 476: 2977. YAO W M et al (Partcle Data Group). J. Phys.G, 2006,33: 18. BES0 collaboration. The Preliminary Design Report of the BES0 Detector, IHEP-BEPCII-SB-139. Amato S et al (LHC-b collaboration). CERN-LHCC-98-410. Bona M et al (SuperB collaboration). SuperB: A High-Luminosity Asymmetric e+e-. Super Flavor Factory., Con-ceptual Design Report, INFN/AE-07/2, SLAC-R-856, LAL07-15, March, 2007, [arXiv:hep-ex/0709.0451]11. HUANG G et al (CLEO collaboration). contributed toICHEP06, [arXiv:hep-ex/0607080]12. Baracchini E et al. JHEP08, 005(2007), [arXiv:hep-ph/0703258]

[1]	Kan Chen , Hong-Wei Ke , Xiang Liu , Takayuki Matsuki . Estimating the production rates of D -wave charmed mesons via the semileptonic decays of bottom mesons. Chinese Physics C, 2019, 43(2): 023106. doi: 10.1088/1674-1137/43/2/023106
[2]	Xiao-Hui Hu , Yue-Long Shen , Wei Wang , Zhen-Xing Zhao . Weak decays of doubly heavy baryons: “decay constants”. Chinese Physics C, 2018, 42(12): 123102. doi: 10.1088/1674-1137/42/12/123102
[3]	Ming-Zhu Liu , Duo-Jie Jia , Dian-Yong Chen . Possible hadronic molecular states composed of S-wave heavy-light mesons. Chinese Physics C, 2017, 41(5): 053105. doi: 10.1088/1674-1137/41/5/053105
[4]	U. T. Yakhshiev , Hyun-Chul Kim , B. Turimov , M. M. Musakhanov , Emiko Hiyama . Instanton effects on the heavy-quark static potential. Chinese Physics C, 2017, 41(8): 083102. doi: 10.1088/1674-1137/41/8/083102
[5]	Jing-Bin Liu , Mao-Zhi Yang . Heavy-light mesons in a relativistic model. Chinese Physics C, 2016, 40(7): 073101. doi: 10.1088/1674-1137/40/7/073101
[6]	Liang Zhang , Peng-Zhi Huang . ρ meson decays of heavy hybrid mesons. Chinese Physics C, 2016, 40(7): 073105. doi: 10.1088/1674-1137/40/7/073105
[7]	MU Chun , WANG Xiao , CHEN Xiao-Lin , LIU Xiang , ZHU Shi-Lin . Dipion decays of heavy baryons. Chinese Physics C, 2014, 38(11): 113101. doi: 10.1088/1674-1137/38/11/113101
[8]	DENG Hong-Bo , CHEN Xiao-Lin , DENG Wei-Zhen . Meson decays in an extended Nambu—Jona-Lasinio model with heavy quark flavors. Chinese Physics C, 2014, 38(1): 013103. doi: 10.1088/1674-1137/38/1/013103
[9]	GUO Xiao-Yu , CHEN Xiao-Lin , DENG Wei-Zhen . Heavy mesons in the Nambu-Jona-Lasinio model. Chinese Physics C, 2013, 37(3): 033102. doi: 10.1088/1674-1137/37/3/033102
[10]	QIN Zhen , DONG Xin-Ping , WEI Ke-Wei . Masses of heavy-light mesons in Regge phenomenology. Chinese Physics C, 2013, 37(5): 053102. doi: 10.1088/1674-1137/37/5/053102
[11]	HU Bin , CHEN Xiao-Lin , LUO Zhi-Gang , HUANG Peng-Zhi , ZHU Shi-Lin , YU Peng-Fei , LIU Xiang . Possible heavy molecular states composed of a pair of excited charm-strange mesons. Chinese Physics C, 2011, 35(2): 113-125. doi: 10.1088/1674-1137/35/2/002
[12]	Bhaghyesh , K. B. Vijaya Kumar , Antony Prakash Monteiro . Heavy quarkonia spectra and their decays in a relativistic quark model. Chinese Physics C, 2011, 35(11): 997-1003. doi: 10.1088/1674-1137/35/11/003
[13]	G. D. Lafferty . Rare tau decays from BABAR. Chinese Physics C, 2010, 34(6): 907-911. doi: 10.1088/1674-1137/34/6/049
[14]	ZHANG Guo-Fang , SONG Jin-Fan , LU Gong-Ru , . Rare decays B⁰_s,d→l⁺l^－ in a top quark two-Higgs-doublet model. Chinese Physics C, 2010, 34(2): 165-170. doi: 10.1088/1674-1137/34/2/002
[15]	GUO Feng-Kun . Heavy quark spin symmetry and heavy flavor hadronic molecules. Chinese Physics C, 2010, 34(9): 1294-1297. doi: 10.1088/1674-1137/34/9/027
[16]	E. Hernandez , J. Nieves . Role of hyperfine mixing in b→c semileptonic decays of doubly-heavy baryons. Chinese Physics C, 2010, 34(9): 1488-1490. doi: 10.1088/1674-1137/34/9/080
[17]	J.M. Flynn , E. Hernandez . Semileptonic bc to cc and bb to bc baryon decays and heavy quark spin symmetry. Chinese Physics C, 2010, 34(9): 1364-1367. doi: 10.1088/1674-1137/34/9/043
[18]	C. Garcia-Recio , V. K. Magas , T. Mizutani , J. Nieves , A. Ramos , L. L. Salcedo . Charmed baryon resonances with heavy-quark symmetry. Chinese Physics C, 2009, 33(12): 1323-1326. doi: 10.1088/1674-1137/33/12/046
[19]	LIU Xiang . Strong decays of newly observed heavy flavor hadrons. Chinese Physics C, 2009, 33(6): 473-480. doi: 10.1088/1674-1137/33/6/014
[20]	LIU Fu-Hu , SUN Yan , DUAN Mai-Ying , LI Jun-Sheng . Emissions of fragments and mesons produced in heavy-ion collisions at CSR and related energies. Chinese Physics C, 2008, 32(S2): 24-28.

Access

Get Citation

LI Hai-Bo and YANG Mao-Zhi. Rare semileptonic decays of heavy mesons in the heavy quark limit[J]. Chinese Physics C, 2010, 34(2): 262-266. doi: 10.1088/1674-1137/34/2/021

LI Hai-Bo and YANG Mao-Zhi. Rare semileptonic decays of heavy mesons in the heavy quark limit[J]. Chinese Physics C, 2010, 34(2): 262-266. doi: 10.1088/1674-1137/34/2/021 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2009-09-02
Revised: 2009-09-25

Article Metric

Article Views(2764)
PDF Downloads(564)
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

Rare semileptonic decays of heavy mesons in the heavy quark limit

Corresponding author: YANG Mao-Zhi,

Received Date: 2009-09-02

Accepted Date: 2009-09-25

Available Online: 2010-02-05

Abstract:

We study the branching ratios of D⁺→D⁰e⁺ν, D⁺_S→D⁰e⁺ν, B⁰_S→B⁺e^－ν, D⁺_S→D⁺ e^－e⁺ and B⁰_S→B⁰e^－e⁺ rare semileptonic decay processes, which are induced by decays of light quarks, the heavy quarks remain unchanged. The branching ratios of these decay processes are estimated in the heavy quark limit and with SU(3) flavor symmetry. We find that the decay rates are very tiny in the framework of the Standard Model. We also estimate the sensitivities of the measurements of these rare decays at the future experiments, such as BES-Ⅲ, super-B and LHC-b. Observations of these decays may shed some light on new physics beyond the standard model.

HTML

Reference (1)

Rare semileptonic decays of heavy mesons in the heavy quark limit

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article