Charm physics at BESIII

MA Hailong (for the BESIII Collaboration)

doi:10.3969/j.issn.0253-2778.2016.05.002

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Charm physics at BESIII

MA Hailong (for the BESIII Collaboration)

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Funds: Supported by the National Natural Science Foundation of China (10935007, 11305180), and the National Program on Key Basic Research Project of China (973 Program) (2009CB825200, 2015CB856700).

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https://doi.org/10.3969/j.issn.0253-2778.2016.05.002

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Author Bio:
MA Hailong, male, born in 1978, PhD/associate Prof. Research field: charm physics. E-mail: mahl@ihep.ac.cn
Received Date: 30 November 2015
Accepted Date: 20 April 2016
Rev Recd Date: 20 April 2016
Publish Date: 31 May 2016

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Abstract

Abstract

Based on 293 and 0567 fb-1 data taken at the center-of-mass energies s=3773 and 4599 GeV with the BESIII detector, we report the precise measurements of the decay constant fD+, the form factors of D semileptonic decays, the Dalitz plot analysis of D+→K0Sπ+π0, the strong phase differences in D→K0S/Lπ+π- and K-π+, the D0D0 mixing parameter yCP, the searches for 2-body hadronic decays D0(+)→ωπ0(+), rare decays of D0→γγ and D+→K(π)±ee+ as well as the significant improved measurements of the absolute branching fractions for Λ+c→Λe+νe and 12 hadronic final states.

Abstract

Based on 293 and 0567 fb-1 data taken at the center-of-mass energies s=3773 and 4599 GeV with the BESIII detector, we report the precise measurements of the decay constant fD+, the form factors of D semileptonic decays, the Dalitz plot analysis of D+→K0Sπ+π0, the strong phase differences in D→K0S/Lπ+π- and K-π+, the D0D0 mixing parameter yCP, the searches for 2-body hadronic decays D0(+)→ωπ0(+), rare decays of D0→γγ and D+→K(π)±ee+ as well as the significant improved measurements of the absolute branching fractions for Λ+c→Λe+νe and 12 hadronic final states.

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References(36)

References

[1]	ABLIKIM M, ACHASOV M N, ALBAYRAKET O, et al (BESIII Collaboration). Measurement of the integrated luminosities of the data taken by BESIII at s=3650 and 3773 GeV[J]. Chin Phys C, 2013, 37: 123001.
[2]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Precision measurement of the integrated luminosity of the data taken by BESIII at center-of mass energies between 3810 GeV and 4600 GeV[J]. Chin Phys C, 2015, 39: 093001.
[3]	ABLIKIM M, AN Z H, BAI J Z, et al (BESIII Collaboration). Design and construction of the BESIII detector[J]. Nucl Phys Meth A, 2010, 614: 345-399.
[4]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Precision measurements of B(D+→μ+νμ), the pseudoscalar decay constant fD+, and the quark mixing matrix element Vcd[J]. Phys Rev D, 2014, 89: 051104(R).
[5]	OLIVE K A, AGASHE K, AMSLER C, et al (Particle Data Group). Review of particle physics[J]. Chin Phys C, 2014, 38: 090001.
[6]	EISENSTEIN B I, KARLINER I, MEHRABYAN S, et al. (CLEO Collaboration). Precision measurement of B(D+→μ+ν) and the pseudoscalar decay constant fD+[J]. Phys Rev D, 2008, 78: 052003.
[7]	FOLLANA E, DAVIES C T H, LEPAGE G P, et al. (HPQCD and UKQCD Collaborations). High precision determination of the π, K, D and Ds decay constants from lattice QCD[J]. Phys Rev Lett, 2008, 100: 062002.
[8]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Study of dynamics of D0→K－e+ve and D0→π－e+ve  decays[J]. Phy Rev D, 2015, 92: 072012.
[9]	BECIREVIC D, KAIDALOV A B. Comment on the heavy→light form-factors[J]. Phys Lett B, 2000, 478: 417-423.
[10]	BECHER T, HILL R J. Comment on form-factor shape and extraction of Vub from B→πlv [J]. Phys Lett B, 2006, 633: 61-69.
[11]	NA H, DAVIES C T H, FOLLANA E, et al (HPQCD Collaboration). The D→K,lv semileptonic decay scalar form factor and Vcs from Lattice QCD[J]. Phys Rev D, 2010, 82: 114506.
[12]	NA H, DAVIES C T H, FOLLANA E, et al. (HPQCD Collaboration). D→π,lv semileptonic decays, Vcd and 2nd row unitarity from lattice QCD [J]. Phys Rev D, 2010, 84: 114505.
[13]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Study of decay dynamics and CP asymmetry in D+→K0Le+ve decay [J]. Phys Rev D, 2015, 92: 112008.
[14]	ABLIKIM M, ACHASOV M N, AI X C, et al. (BESIII Collaboration). Study of D+→K－π+e+ve [DB/OL]. arXiv:1512.08627[hep-ex].
[15]	KRNER J G, SCHULER G A. Exclusive semileptonic heavy meson decays including lepton mass effects[J]. Z Phys C, 1990, 46: 93-109.
[16]	Gilman F J, Singleton R L Jr. Analysis of semileptonic decays of mesons containing heavy quarks [J]. Phys Rev D, 1990, 41: 142.
[17]	LINK J M, REYES M, YAGER P M, et al. (FOCUS Collaboration). New measurements of the D+→K*0μ+v form-factor ratios [J]. Phys Lett B, 2002, 544: 89-96.
[18]	ABLIKIM M, ACHASOV M N, AI X C, et al. (BESIII Collaboration). Measurement of the form factors in the decay D+→ωe+ve and search for the decay D+→e+ve[J]. Phy Rev D, 2015, 92: 071101.
[19]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Amplitude analysis of the D+→K0Sπ+π0 Dalitz plot [J]. Phys Rev D, 2014, 89: 052001.
[20]	BERINGER J, ARGUIN J F, BARNETT R M, et al (Particle Data Group). Review of particle physics [J]. Phys Rev D, 2012, 86: 010001.
[21]	AMBROSE D, MURAMATSU H, THORNDIKE E (for BESIII Collaboration). Relative strong-phase difference between D0 and D0→K0Sπ+π- at BESIII[EB/OL]. http://meetings.aps.org/link/BAPS.2014.APR.Y12.7.
[22]	BRIERE R A, VOGEL H, ONYISI P U E, et al (CLEO Collaboration). First model-independent determination of the relative strong phase between D0 and D0→K0Sπ+π- and its impact on the CKM Angle γ/3 measurement[J]. Phys Rev D, 2009, 80: 032002.
[23]	LIBBY J, KORNICER M, MITCHELL R E, et al (CLEO Collaboration). Model-independent determination of the strong-phase difference between D0 and D0→K0S,Lh+h- (h =π; K) and its impact on the measurement of the CKM angle γ/3 [J]. Phys Rev D, 2010, 82: 112006.
[24]	GIRI A, GROSSMAN Y, SOFFER A, et al. Determining γ using B±→DK± with multibody D decays [J]. Phys Rev D, 2003, 68: 054018.
[25]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Measurement of yCP in D0-D0 oscillation using quantum correlations in e+e－→D0D0 at s=3773 GeV[J].Phys Lett B, 2015, 744: 339-346.
[26]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Measurement of the D→K-π+ strong phase difference in ψ(3770)→D0D0 [J]. Phys Lett B, 2014, 734: 227-233.
[27]	Heavy Flavor Averaging Group. Charm physics[EB/OL]. http://www.slac.stanford.edu/xorg/hfag/charm/.
[28]	CHENG H Y, CHIANG C W. Two-body hadronic charmed meson decays[J]. Phys Rev D, 2010, 81: 074021.
[29]	RUBIN P, CAWLFIELD C, EISENSTEIN B I (CLEO Collaboration). New measurements of Cabibbo-suppressed decays of D mesons in CLEO-c detector[J]. Phys Rev Lett, 2006, 96: 081802.
[30]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Observation of the singly cabibbo-suppressed decay D+→ωπ+ and evidence for D0→ωπ0[J]. Phy Rev Lett, 2016, 116: 082001.
[31]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Search for D0→γγ and improved measurement of the branching fraction for D0→π0π0[J]. Phy Rev D, 2015, 91: 112015.
[32]	Zhao M G (for BESIII Collaboration). D rare/forbidden decays at BESIII[DB/OL]. arXiv:1605.08952[hep-ex].
[33]	ABRAMS G S, ALAM M S, BLOCKER C A, et al (Mark II Collaboration). Observation of charmed baryon production in e+e- annihilation [J]. Phys Rev Lett, 1980, 44: 10-13.
[34]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Measurements of absolute hadronic branching fractions of Λ+c baryon[J]. Phy Rev Lett, 2016, 116: 052001.
[35]	ZUPANC A, BARTEL C, GABYSHEV N, et al (Belle Collaboration). Measurement of the branching fraction B(Λ+c→pK-π+)[J]. Phys Rev Lett, 2014, 113: 042002.
[36]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Measurement of the absolute branching fraction for Λ+c→Λe+ve [J]. Phy Rev Lett, 2015, 115: 221805.

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[1]	ABLIKIM M, ACHASOV M N, ALBAYRAKET O, et al (BESIII Collaboration). Measurement of the integrated luminosities of the data taken by BESIII at s=3650 and 3773 GeV[J]. Chin Phys C, 2013, 37: 123001.
[2]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Precision measurement of the integrated luminosity of the data taken by BESIII at center-of mass energies between 3810 GeV and 4600 GeV[J]. Chin Phys C, 2015, 39: 093001.
[3]	ABLIKIM M, AN Z H, BAI J Z, et al (BESIII Collaboration). Design and construction of the BESIII detector[J]. Nucl Phys Meth A, 2010, 614: 345-399.
[4]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Precision measurements of B(D+→μ+νμ), the pseudoscalar decay constant fD+, and the quark mixing matrix element Vcd[J]. Phys Rev D, 2014, 89: 051104(R).
[5]	OLIVE K A, AGASHE K, AMSLER C, et al (Particle Data Group). Review of particle physics[J]. Chin Phys C, 2014, 38: 090001.
[6]	EISENSTEIN B I, KARLINER I, MEHRABYAN S, et al. (CLEO Collaboration). Precision measurement of B(D+→μ+ν) and the pseudoscalar decay constant fD+[J]. Phys Rev D, 2008, 78: 052003.
[7]	FOLLANA E, DAVIES C T H, LEPAGE G P, et al. (HPQCD and UKQCD Collaborations). High precision determination of the π, K, D and Ds decay constants from lattice QCD[J]. Phys Rev Lett, 2008, 100: 062002.
[8]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Study of dynamics of D0→K－e+ve and D0→π－e+ve  decays[J]. Phy Rev D, 2015, 92: 072012.
[9]	BECIREVIC D, KAIDALOV A B. Comment on the heavy→light form-factors[J]. Phys Lett B, 2000, 478: 417-423.
[10]	BECHER T, HILL R J. Comment on form-factor shape and extraction of Vub from B→πlv [J]. Phys Lett B, 2006, 633: 61-69.
[11]	NA H, DAVIES C T H, FOLLANA E, et al (HPQCD Collaboration). The D→K,lv semileptonic decay scalar form factor and Vcs from Lattice QCD[J]. Phys Rev D, 2010, 82: 114506.
[12]	NA H, DAVIES C T H, FOLLANA E, et al. (HPQCD Collaboration). D→π,lv semileptonic decays, Vcd and 2nd row unitarity from lattice QCD [J]. Phys Rev D, 2010, 84: 114505.
[13]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Study of decay dynamics and CP asymmetry in D+→K0Le+ve decay [J]. Phys Rev D, 2015, 92: 112008.
[14]	ABLIKIM M, ACHASOV M N, AI X C, et al. (BESIII Collaboration). Study of D+→K－π+e+ve [DB/OL]. arXiv:1512.08627[hep-ex].
[15]	KRNER J G, SCHULER G A. Exclusive semileptonic heavy meson decays including lepton mass effects[J]. Z Phys C, 1990, 46: 93-109.
[16]	Gilman F J, Singleton R L Jr. Analysis of semileptonic decays of mesons containing heavy quarks [J]. Phys Rev D, 1990, 41: 142.
[17]	LINK J M, REYES M, YAGER P M, et al. (FOCUS Collaboration). New measurements of the D+→K*0μ+v form-factor ratios [J]. Phys Lett B, 2002, 544: 89-96.
[18]	ABLIKIM M, ACHASOV M N, AI X C, et al. (BESIII Collaboration). Measurement of the form factors in the decay D+→ωe+ve and search for the decay D+→e+ve[J]. Phy Rev D, 2015, 92: 071101.
[19]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Amplitude analysis of the D+→K0Sπ+π0 Dalitz plot [J]. Phys Rev D, 2014, 89: 052001.
[20]	BERINGER J, ARGUIN J F, BARNETT R M, et al (Particle Data Group). Review of particle physics [J]. Phys Rev D, 2012, 86: 010001.
[21]	AMBROSE D, MURAMATSU H, THORNDIKE E (for BESIII Collaboration). Relative strong-phase difference between D0 and D0→K0Sπ+π- at BESIII[EB/OL]. http://meetings.aps.org/link/BAPS.2014.APR.Y12.7.
[22]	BRIERE R A, VOGEL H, ONYISI P U E, et al (CLEO Collaboration). First model-independent determination of the relative strong phase between D0 and D0→K0Sπ+π- and its impact on the CKM Angle γ/3 measurement[J]. Phys Rev D, 2009, 80: 032002.
[23]	LIBBY J, KORNICER M, MITCHELL R E, et al (CLEO Collaboration). Model-independent determination of the strong-phase difference between D0 and D0→K0S,Lh+h- (h =π; K) and its impact on the measurement of the CKM angle γ/3 [J]. Phys Rev D, 2010, 82: 112006.
[24]	GIRI A, GROSSMAN Y, SOFFER A, et al. Determining γ using B±→DK± with multibody D decays [J]. Phys Rev D, 2003, 68: 054018.
[25]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Measurement of yCP in D0-D0 oscillation using quantum correlations in e+e－→D0D0 at s=3773 GeV[J].Phys Lett B, 2015, 744: 339-346.
[26]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Measurement of the D→K-π+ strong phase difference in ψ(3770)→D0D0 [J]. Phys Lett B, 2014, 734: 227-233.
[27]	Heavy Flavor Averaging Group. Charm physics[EB/OL]. http://www.slac.stanford.edu/xorg/hfag/charm/.
[28]	CHENG H Y, CHIANG C W. Two-body hadronic charmed meson decays[J]. Phys Rev D, 2010, 81: 074021.
[29]	RUBIN P, CAWLFIELD C, EISENSTEIN B I (CLEO Collaboration). New measurements of Cabibbo-suppressed decays of D mesons in CLEO-c detector[J]. Phys Rev Lett, 2006, 96: 081802.
[30]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Observation of the singly cabibbo-suppressed decay D+→ωπ+ and evidence for D0→ωπ0[J]. Phy Rev Lett, 2016, 116: 082001.
[31]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Search for D0→γγ and improved measurement of the branching fraction for D0→π0π0[J]. Phy Rev D, 2015, 91: 112015.
[32]	Zhao M G (for BESIII Collaboration). D rare/forbidden decays at BESIII[DB/OL]. arXiv:1605.08952[hep-ex].
[33]	ABRAMS G S, ALAM M S, BLOCKER C A, et al (Mark II Collaboration). Observation of charmed baryon production in e+e- annihilation [J]. Phys Rev Lett, 1980, 44: 10-13.
[34]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Measurements of absolute hadronic branching fractions of Λ+c baryon[J]. Phy Rev Lett, 2016, 116: 052001.
[35]	ZUPANC A, BARTEL C, GABYSHEV N, et al (Belle Collaboration). Measurement of the branching fraction B(Λ+c→pK-π+)[J]. Phys Rev Lett, 2014, 113: 042002.
[36]	ABLIKIM M, ACHASOV M N, AI X C, et al (BESIII Collaboration). Measurement of the absolute branching fraction for Λ+c→Λe+ve [J]. Phy Rev Lett, 2015, 115: 221805.

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