Search for CP Violation and Measurement of the Branching Fraction in the Decay D0 → KS0 KS0

Belle Collaboration

doi:10.1103/PhysRevLett.119.171801

Search for CP Violation and Measurement of the Branching Fraction in the Decay D0 → KS0 KS0

Belle Collaboration

Результат исследования: Научные публикации в периодических изданиях › статья

18 Цитирования (Scopus)

Аннотация

We report a study of the decay D0→KS0KS0 using 921 fb-1 of data collected at or near the (4S) and (5S) resonances with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured time-integrated CP asymmetry is ACP(D0→KS0KS0)=(-0.02±1.53±0.02±0.17)%, and the branching fraction is B(D0→KS0KS0)=(1.321±0.023±0.036±0.044)×10-4, where the first uncertainty is statistical, the second is systematic, and the third is due to the normalization mode (D0→KS0π0). These results are significantly more precise than previous measurements available for this mode. The ACP measurement is consistent with the standard model expectation.

Язык оригинала	английский
Номер статьи	171801
Число страниц	7
Журнал	Physical Review Letters
Том	119
Номер выпуска	17
DOI	https://doi.org/10.1103/PhysRevLett.119.171801
Состояние	Опубликовано - 23 окт 2017

Доступ к документу

10.1103/PhysRevLett.119.171801

Link to publication in Scopus

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Цитировать

Belle Collaboration (2017). Search for CP Violation and Measurement of the Branching Fraction in the Decay D0 → KS0 KS0. Physical Review Letters, 119(17), [171801]. https://doi.org/10.1103/PhysRevLett.119.171801

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title = "Search for CP Violation and Measurement of the Branching Fraction in the Decay D0 → KS0 KS0",

abstract = "We report a study of the decay D0→KS0KS0 using 921 fb-1 of data collected at or near the (4S) and (5S) resonances with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured time-integrated CP asymmetry is ACP(D0→KS0KS0)=(-0.02±1.53±0.02±0.17)%, and the branching fraction is B(D0→KS0KS0)=(1.321±0.023±0.036±0.044)×10-4, where the first uncertainty is statistical, the second is systematic, and the third is due to the normalization mode (D0→KS0π0). These results are significantly more precise than previous measurements available for this mode. The ACP measurement is consistent with the standard model expectation.",

keywords = "BELLE, PACKAGE",

author = "{The BELLE collaboration} and N. Dash and S. Bahinipati and V. Bhardwaj and K. Trabelsi and I. Adachi and H. Aihara and {Al Said}, S. and Asner, {D. M.} and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and I. Badhrees and Bakich, {A. M.} and V. Bansal and E. Barberio and B. Bhuyan and J. Biswal and A. Bobrov and A. Bondar and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and F. Breibeck and Browder, {T. E.} and D. {\v C}ervenkov and Chang, {M. C.} and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and K. Cho and Y. Choi and D. Cinabro and {Di Carlo}, S. and Z. Dole{\v Z}al and Z. Dr{\'a}sal and S. Eidelman and D. Epifanov and N. Gabyshev and A. Garmash and P. Krokovny and A. Kuzmin and D. Matvienko and V. Shebalin and B. Shwartz and Y. Usov and V. Vorobyev and V. Zhilich and V. Zhulanov",

year = "2017",

month = oct,

day = "23",

doi = "10.1103/PhysRevLett.119.171801",

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journal = "Physical Review Letters",

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AU - The BELLE collaboration

AU - Dash, N.

AU - Bahinipati, S.

AU - Bhardwaj, V.

AU - Trabelsi, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Bansal, V.

AU - Barberio, E.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bondar, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Breibeck, F.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chang, M. C.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Di Carlo, S.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Krokovny, P.

AU - Kuzmin, A.

AU - Matvienko, D.

AU - Shebalin, V.

AU - Shwartz, B.

AU - Usov, Y.

AU - Vorobyev, V.

AU - Zhilich, V.

AU - Zhulanov, V.

PY - 2017/10/23

Y1 - 2017/10/23

N2 - We report a study of the decay D0→KS0KS0 using 921 fb-1 of data collected at or near the (4S) and (5S) resonances with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured time-integrated CP asymmetry is ACP(D0→KS0KS0)=(-0.02±1.53±0.02±0.17)%, and the branching fraction is B(D0→KS0KS0)=(1.321±0.023±0.036±0.044)×10-4, where the first uncertainty is statistical, the second is systematic, and the third is due to the normalization mode (D0→KS0π0). These results are significantly more precise than previous measurements available for this mode. The ACP measurement is consistent with the standard model expectation.

AB - We report a study of the decay D0→KS0KS0 using 921 fb-1 of data collected at or near the (4S) and (5S) resonances with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured time-integrated CP asymmetry is ACP(D0→KS0KS0)=(-0.02±1.53±0.02±0.17)%, and the branching fraction is B(D0→KS0KS0)=(1.321±0.023±0.036±0.044)×10-4, where the first uncertainty is statistical, the second is systematic, and the third is due to the normalization mode (D0→KS0π0). These results are significantly more precise than previous measurements available for this mode. The ACP measurement is consistent with the standard model expectation.

KW - BELLE

KW - PACKAGE

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U2 - 10.1103/PhysRevLett.119.171801

DO - 10.1103/PhysRevLett.119.171801

M3 - Article

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AN - SCOPUS:85032448959

VL - 119

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 17

M1 - 171801

ER -