Model-independent determination of the relative strong-phase difference between D0 and D ¯ 0 → KS,L0 π+π- And its impact on the measurement of the CKM angle γ /φ3

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Model-independent determination of the relative strong-phase difference between D0 and D ¯ 0 → KS,L0 π+π- And its impact on the measurement of the CKM angle γ /φ3. / BESIII Collaboration.

In: Physical Review D, Vol. 101, No. 11, 112002, 01.06.2020.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{30a461d962fe4421b3b0c6d86bf8cd15,

title = "Model-independent determination of the relative strong-phase difference between D0 and D ¯ 0 → KS,L0 π+π- And its impact on the measurement of the CKM angle γ /φ3",

abstract = "Crucial inputs for a variety of CP-violation studies can be determined through the analysis of pairs of quantum-entangled neutral D mesons, which are produced in the decay of the ψ(3770) resonance. The relative strong-phase parameters between D0 and D¯0 in the decays D0→KS,L0π+π- are studied using 2.93 fb-1 of e+e- annihilation data delivered by the BEPCII collider and collected by the BESIII detector at a center-of-mass energy of 3.773 GeV. Results are presented in regions of the phase space of the decay. These are the most precise measurements to date of the strong-phase parameters in D→KS,L0π+π- decays. Using these parameters, the associated uncertainty on the Cabibbo-Kobayashi-Maskawa angle γ/φ3 is expected to be between 0.7° and 1.2° for an analysis using the decay B±→DK±, D→KS0π+π-, where D represents a superposition of D0 and D¯0 states. This is a factor of 3 smaller than that achievable with previous measurements. Furthermore, these results provide valuable input for charm-mixing studies, other measurements of CP violation, and the measurement of strong-phase parameters for other D-decay modes.",

author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and P. Adlarson and S. Ahmed and M. Albrecht and M. Alekseev and D. Ambrose and A. Amoroso and An, {F. F.} and Q. An and Anita and Y. Bai and O. Bakina and Ferroli, {R. Baldini} and I. Balossino and Y. Ban and K. Begzsuren and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and J. Biernat and J. Bloms and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and A. Calcaterra and Cao, {G. F.} and N. Cao and Cetin, {S. A.} and J. Chai and Chang, {J. F.} and Chang, {W. L.} and G. Chelkov and Chen, {D. Y.} and G. Chen and Chen, {H. S.} and J. Chen and Chen, {J. C.} and Chen, {M. L.} and Chen, {S. J.} and Chen, {Y. B.} and W. Cheng and G. Cibinetto and F. Cossio and Cui, {X. F.} and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",

note = "Funding Information: The BESIII Collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contract No. 2015CB856700; National Natural Science Foundation of China (NSFC) under Contracts No. 11625523, No. 11635010, No. 11735014, No. 11775027, No. 11822506, and No. 11835012; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1532257, No. U1532258, No. U1732263, and No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; German Research Foundation DFG under Contracts Nos. Collaborative Research Center CRC 1044, FOR 2359; Istituto Nazionale di Fisica Nucleare, Italy; Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) under Contract No. 530-4CDP03; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; STFC (United Kingdom); the Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; the Royal Society, United Kingdom under Contracts No. DH140054 and No. DH160214; the Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-0010118, and No. DE-SC-0012069; University of Groningen (RuG), and the Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt. This paper is also supported by Beijing municipal government under Contract No. CIT&TCD201704047 and by the Royal Society under Contract No. NF170002. Publisher Copyright: {\textcopyright} 2020 authors. Published by the American Physical Society. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

year = "2020",

month = jun,

day = "1",

doi = "10.1103/PhysRevD.101.112002",

language = "English",

volume = "101",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "AMER PHYSICAL SOC",

number = "11",

}

RIS

TY - JOUR

T1 - Model-independent determination of the relative strong-phase difference between D0 and D ¯ 0 → KS,L0 π+π- And its impact on the measurement of the CKM angle γ /φ3

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Adlarson, P.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Alekseev, M.

AU - Ambrose, D.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Anita,

AU - Bai, Y.

AU - Bakina, O.

AU - Ferroli, R. Baldini

AU - Balossino, I.

AU - Ban, Y.

AU - Begzsuren, K.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Biernat, J.

AU - Bloms, J.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cao, N.

AU - Cetin, S. A.

AU - Chai, J.

AU - Chang, J. F.

AU - Chang, W. L.

AU - Chelkov, G.

AU - Chen, D. Y.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, Y. B.

AU - Cheng, W.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Cui, X. F.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

N1 - Funding Information: The BESIII Collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contract No. 2015CB856700; National Natural Science Foundation of China (NSFC) under Contracts No. 11625523, No. 11635010, No. 11735014, No. 11775027, No. 11822506, and No. 11835012; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1532257, No. U1532258, No. U1732263, and No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; German Research Foundation DFG under Contracts Nos. Collaborative Research Center CRC 1044, FOR 2359; Istituto Nazionale di Fisica Nucleare, Italy; Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) under Contract No. 530-4CDP03; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; STFC (United Kingdom); the Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; the Royal Society, United Kingdom under Contracts No. DH140054 and No. DH160214; the Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-0010118, and No. DE-SC-0012069; University of Groningen (RuG), and the Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt. This paper is also supported by Beijing municipal government under Contract No. CIT&TCD201704047 and by the Royal Society under Contract No. NF170002. Publisher Copyright: © 2020 authors. Published by the American Physical Society. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2020/6/1

Y1 - 2020/6/1

N2 - Crucial inputs for a variety of CP-violation studies can be determined through the analysis of pairs of quantum-entangled neutral D mesons, which are produced in the decay of the ψ(3770) resonance. The relative strong-phase parameters between D0 and D¯0 in the decays D0→KS,L0π+π- are studied using 2.93 fb-1 of e+e- annihilation data delivered by the BEPCII collider and collected by the BESIII detector at a center-of-mass energy of 3.773 GeV. Results are presented in regions of the phase space of the decay. These are the most precise measurements to date of the strong-phase parameters in D→KS,L0π+π- decays. Using these parameters, the associated uncertainty on the Cabibbo-Kobayashi-Maskawa angle γ/φ3 is expected to be between 0.7° and 1.2° for an analysis using the decay B±→DK±, D→KS0π+π-, where D represents a superposition of D0 and D¯0 states. This is a factor of 3 smaller than that achievable with previous measurements. Furthermore, these results provide valuable input for charm-mixing studies, other measurements of CP violation, and the measurement of strong-phase parameters for other D-decay modes.

AB - Crucial inputs for a variety of CP-violation studies can be determined through the analysis of pairs of quantum-entangled neutral D mesons, which are produced in the decay of the ψ(3770) resonance. The relative strong-phase parameters between D0 and D¯0 in the decays D0→KS,L0π+π- are studied using 2.93 fb-1 of e+e- annihilation data delivered by the BEPCII collider and collected by the BESIII detector at a center-of-mass energy of 3.773 GeV. Results are presented in regions of the phase space of the decay. These are the most precise measurements to date of the strong-phase parameters in D→KS,L0π+π- decays. Using these parameters, the associated uncertainty on the Cabibbo-Kobayashi-Maskawa angle γ/φ3 is expected to be between 0.7° and 1.2° for an analysis using the decay B±→DK±, D→KS0π+π-, where D represents a superposition of D0 and D¯0 states. This is a factor of 3 smaller than that achievable with previous measurements. Furthermore, these results provide valuable input for charm-mixing studies, other measurements of CP violation, and the measurement of strong-phase parameters for other D-decay modes.

UR - http://www.scopus.com/inward/record.url?scp=85087405449&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.101.112002

DO - 10.1103/PhysRevD.101.112002

M3 - Article

AN - SCOPUS:85087405449

VL - 101

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 11

M1 - 112002

ER -

ID: 27906204