Measurements of the Branching Fraction, Polarization, and CP Asymmetry for the Decay B0 →ωω

Y. Guan; A. J. Schwartz; K. Kinoshita; I. Adachi; H. Aihara; S. Al Said; D. M. Asner; H. Atmacan; R. Ayad; S. Bahinipati; Sw Banerjee; K. Belous; J. Bennett; M. Bessner; V. Bhardwaj; B. Bhuyan; D. Biswas; A. Bobrov; D. Bodrov; J. Borah; A. Bozek; M. Bračko; P. Branchini; T. E. Browder; A. Budano; M. Campajola; L. Cao; D. Červenkov; M. C. Chang; P. Chang; B. G. Cheon; K. Chilikin; H. E. Cho; K. Cho; S. K. Choi; Y. Choi; S. Choudhury; S. Das; G. De Nardo; G. De Pietro; R. Dhamija; F. Di Capua; J. Dingfelder; Z. DoleŽal; T. V. Dong; S. Dubey; P. Ecker; D. Epifanov; T. Ferber; D. Ferlewicz; B. G. Fulsom; V. Gaur; A. Giri; P. Goldenzweig; E. Graziani; T. Gu; K. Gudkova; C. Hadjivasiliou; K. Hayasaka; H. Hayashii; S. Hazra; M. T. Hedges; W. S. Hou; C. L. Hsu; N. Ipsita; A. Ishikawa; R. Itoh; M. Iwasaki; W. W. Jacobs; S. Jia; Y. Jin; K. K. Joo; T. Kawasaki; C. H. Kim; D. Y. Kim; K. H. Kim; Y. J. Kim; Y. K. Kim; P. Kodyš; A. Korobov; S. Korpar; E. Kovalenko; P. KriŽan; P. Krokovny; T. Kuhr; R. Kumar; K. Kumara; T. Kumita; Y. J. Kwon; Y. T. Lai; S. C. Lee; D. Levit; L. K. Li; Y. Li; Y. B. Li; L. Li Gioi; J. Libby; D. Liventsev; T. Luo; M. Masuda; T. Matsuda; S. K. Maurya; F. Meier; M. Merola; F. Metzner; K. Miyabayashi; R. Mizuk; G. B. Mohanty; R. Mussa; I. Nakamura; M. Nakao; Z. Natkaniec; A. Natochii; L. Nayak; M. Nayak; M. Niiyama; S. Nishida; S. Ogawa; H. Ono; G. Pakhlova; S. Pardi; H. Park; J. Park; S. H. Park; S. Paul; R. Pestotnik; L. E. Piilonen; T. Podobnik; E. Prencipe; M. T. Prim; M. Röhrken; G. Russo; S. Sandilya; L. Santelj; V. Savinov; G. Schnell; C. Schwanda; Y. Seino; K. Senyo; M. E. Sevior; W. Shan; J. G. Shiu; E. Solovieva; M. Starič; K. Sumisawa; M. Takizawa; U. Tamponi; K. Tanida; F. Tenchini; R. Tiwary; K. Trabelsi; M. Uchida; Y. Unno; S. Uno; P. Urquijo; Y. Usov; S. E. Vahsen; K. E. Varvell; A. Vinokurova; M. Z. Wang; S. Watanuki; E. Won; X. Xu; B. D. Yabsley; W. Yan; Y. Yook; L. Yuan; Z. P. Zhang; V. Zhilich; V. Zhukova

doi:10.1103/PhysRevLett.133.081801

Measurements of the Branching Fraction, Polarization, and CP Asymmetry for the Decay B0 →ωω

Y. Guan, A. J. Schwartz, K. Kinoshita, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, R. Ayad, S. Bahinipati, Sw Banerjee, K. Belous, J. Bennett, M. Bessner, V. Bhardwaj, B. Bhuyan, D. Biswas, A. Bobrov, D. Bodrov, J. BorahA. Bozek, M. Bračko, P. Branchini, T. E. Browder, A. Budano, M. Campajola, L. Cao, D. Červenkov, M. C. Chang, P. Chang, B. G. Cheon, K. Chilikin, H. E. Cho, K. Cho, S. K. Choi, Y. Choi, S. Choudhury, S. Das, G. De Nardo, G. De Pietro, R. Dhamija, F. Di Capua, J. Dingfelder, Z. DoleŽal, T. V. Dong, S. Dubey, P. Ecker, D. Epifanov, T. Ferber, D. Ferlewicz, B. G. Fulsom, V. Gaur, A. Giri, P. Goldenzweig, E. Graziani, T. Gu, K. Gudkova, C. Hadjivasiliou, K. Hayasaka, H. Hayashii, S. Hazra, M. T. Hedges, W. S. Hou, C. L. Hsu, N. Ipsita, A. Ishikawa, R. Itoh, M. Iwasaki, W. W. Jacobs, S. Jia, Y. Jin, K. K. Joo, T. Kawasaki, C. H. Kim, D. Y. Kim, K. H. Kim, Y. J. Kim, Y. K. Kim, P. Kodyš, A. Korobov, S. Korpar, E. Kovalenko, P. KriŽan, P. Krokovny, T. Kuhr, R. Kumar, K. Kumara, T. Kumita, Y. J. Kwon, Y. T. Lai, S. C. Lee, D. Levit, L. K. Li, Y. Li, Y. B. Li, L. Li Gioi, J. Libby, D. Liventsev, T. Luo, M. Masuda, T. Matsuda, S. K. Maurya, F. Meier, M. Merola, F. Metzner, K. Miyabayashi, R. Mizuk, G. B. Mohanty, R. Mussa, I. Nakamura, M. Nakao, Z. Natkaniec, A. Natochii, L. Nayak, M. Nayak, M. Niiyama, S. Nishida, S. Ogawa, H. Ono, G. Pakhlova, S. Pardi, H. Park, J. Park, S. H. Park, S. Paul, R. Pestotnik, L. E. Piilonen, T. Podobnik, E. Prencipe, M. T. Prim, M. Röhrken, G. Russo, S. Sandilya, L. Santelj, V. Savinov, G. Schnell, C. Schwanda, Y. Seino, K. Senyo, M. E. Sevior, W. Shan, J. G. Shiu, E. Solovieva, M. Starič, K. Sumisawa, M. Takizawa, U. Tamponi, K. Tanida, F. Tenchini, R. Tiwary, K. Trabelsi, M. Uchida, Y. Unno, S. Uno, P. Urquijo, Y. Usov, S. E. Vahsen, K. E. Varvell, A. Vinokurova, M. Z. Wang, S. Watanuki, E. Won, X. Xu, B. D. Yabsley, W. Yan, Y. Yook, L. Yuan, Z. P. Zhang, V. Zhilich, V. Zhukova

Chair of Physics I

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Abstract

We present a comprehensive study of B0→ωω decays using 772×106 BB¯ pairs collected with the Belle detector at the KEKB e+e- collider. This process is a suppressed charmless decay into two vector mesons and can exhibit interesting polarization and CP violation. The decay is observed for the first time with a significance of 7.9 standard deviations. We measure a branching fraction B=(1.53±0.29±0.17)×10-6, a fraction of longitudinal polarization fL=0.87±0.13±0.13, and a time-integrated CP asymmetry ACP=-0.44±0.43±0.11, where the first uncertainties listed are statistical and the second are systematic. This is the first observation of B0→ωω and the first measurements of fL and ACP for this decay.

Original language	English
Article number	081801
Journal	Physical Review Letters
Volume	133
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.133.081801
State	Published - 23 Aug 2024

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10.1103/PhysRevLett.133.081801

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Guan, Y., Schwartz, A. J., Kinoshita, K., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Ayad, R., Bahinipati, S., Banerjee, S., Belous, K., Bennett, J., Bessner, M., Bhardwaj, V., Bhuyan, B., Biswas, D., Bobrov, A., Bodrov, D., ... Zhukova, V. (2024). Measurements of the Branching Fraction, Polarization, and CP Asymmetry for the Decay B0 →ωω. Physical Review Letters, 133(8), Article 081801. https://doi.org/10.1103/PhysRevLett.133.081801

@article{31b2b7a48365479aac9b43d4f43c5338,

title = "Measurements of the Branching Fraction, Polarization, and CP Asymmetry for the Decay B0 →ωω",

abstract = "We present a comprehensive study of B0→ωω decays using 772×106 BB¯ pairs collected with the Belle detector at the KEKB e+e- collider. This process is a suppressed charmless decay into two vector mesons and can exhibit interesting polarization and CP violation. The decay is observed for the first time with a significance of 7.9 standard deviations. We measure a branching fraction B=(1.53±0.29±0.17)×10-6, a fraction of longitudinal polarization fL=0.87±0.13±0.13, and a time-integrated CP asymmetry ACP=-0.44±0.43±0.11, where the first uncertainties listed are statistical and the second are systematic. This is the first observation of B0→ωω and the first measurements of fL and ACP for this decay.",

author = "Y. Guan and Schwartz, {A. J.} and K. Kinoshita and I. Adachi and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and R. Ayad and S. Bahinipati and Sw Banerjee and K. Belous and J. Bennett and M. Bessner and V. Bhardwaj and B. Bhuyan and D. Biswas and A. Bobrov and D. Bodrov and J. Borah and A. Bozek and M. Bra{\v c}ko and P. Branchini and Browder, {T. E.} and A. Budano and M. Campajola and L. Cao and D. {\v C}ervenkov and Chang, {M. C.} and P. Chang and Cheon, {B. G.} and K. Chilikin and Cho, {H. E.} and K. Cho and Choi, {S. K.} and Y. Choi and S. Choudhury and S. Das and {De Nardo}, G. and {De Pietro}, G. and R. Dhamija and {Di Capua}, F. and J. Dingfelder and Z. Dole{\v Z}al and Dong, {T. V.} and S. Dubey and P. Ecker and D. Epifanov and T. Ferber and D. Ferlewicz and Fulsom, {B. G.} and V. Gaur and A. Giri and P. Goldenzweig and E. Graziani and T. Gu and K. Gudkova and C. Hadjivasiliou and K. Hayasaka and H. Hayashii and S. Hazra and Hedges, {M. T.} and Hou, {W. S.} and Hsu, {C. L.} and N. Ipsita and A. Ishikawa and R. Itoh and M. Iwasaki and Jacobs, {W. W.} and S. Jia and Y. Jin and Joo, {K. K.} and T. Kawasaki and Kim, {C. H.} and Kim, {D. Y.} and Kim, {K. H.} and Kim, {Y. J.} and Kim, {Y. K.} and P. Kody{\v s} and A. Korobov and S. Korpar and E. Kovalenko and P. Kri{\v Z}an and P. Krokovny and T. Kuhr and R. Kumar and K. Kumara and T. Kumita and Kwon, {Y. J.} and Lai, {Y. T.} and Lee, {S. C.} and D. Levit and Li, {L. K.} and Y. Li and Li, {Y. B.} and {Li Gioi}, L. and J. Libby and D. Liventsev and T. Luo and M. Masuda and T. Matsuda and Maurya, {S. K.} and F. Meier and M. Merola and F. Metzner and K. Miyabayashi and R. Mizuk and Mohanty, {G. B.} and R. Mussa and I. Nakamura and M. Nakao and Z. Natkaniec and A. Natochii and L. Nayak and M. Nayak and M. Niiyama and S. Nishida and S. Ogawa and H. Ono and G. Pakhlova and S. Pardi and H. Park and J. Park and Park, {S. H.} and S. Paul and R. Pestotnik and Piilonen, {L. E.} and T. Podobnik and E. Prencipe and Prim, {M. T.} and M. R{\"o}hrken and G. Russo and S. Sandilya and L. Santelj and V. Savinov and G. Schnell and C. Schwanda and Y. Seino and K. Senyo and Sevior, {M. E.} and W. Shan and Shiu, {J. G.} and E. Solovieva and M. Stari{\v c} and K. Sumisawa and M. Takizawa and U. Tamponi and K. Tanida and F. Tenchini and R. Tiwary and K. Trabelsi and M. Uchida and Y. Unno and S. Uno and P. Urquijo and Y. Usov and Vahsen, {S. E.} and Varvell, {K. E.} and A. Vinokurova and Wang, {M. Z.} and S. Watanuki and E. Won and X. Xu and Yabsley, {B. D.} and W. Yan and Y. Yook and L. Yuan and Zhang, {Z. P.} and V. Zhilich and V. Zhukova",

note = "Publisher Copyright: {\textcopyright} 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",

year = "2024",

month = aug,

day = "23",

doi = "10.1103/PhysRevLett.133.081801",

language = "English",

volume = "133",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "8",

}

Guan, Y, Schwartz, AJ, Kinoshita, K, Adachi, I, Aihara, H, Al Said, S, Asner, DM, Atmacan, H, Ayad, R, Bahinipati, S, Banerjee, S, Belous, K, Bennett, J, Bessner, M, Bhardwaj, V, Bhuyan, B, Biswas, D, Bobrov, A, Bodrov, D, Borah, J, Bozek, A, Bračko, M, Branchini, P, Browder, TE, Budano, A, Campajola, M, Cao, L, Červenkov, D, Chang, MC, Chang, P, Cheon, BG, Chilikin, K, Cho, HE, Cho, K, Choi, SK, Choi, Y, Choudhury, S, Das, S, De Nardo, G, De Pietro, G, Dhamija, R, Di Capua, F, Dingfelder, J, DoleŽal, Z, Dong, TV, Dubey, S, Ecker, P, Epifanov, D, Ferber, T, Ferlewicz, D, Fulsom, BG, Gaur, V, Giri, A, Goldenzweig, P, Graziani, E, Gu, T, Gudkova, K, Hadjivasiliou, C, Hayasaka, K, Hayashii, H, Hazra, S, Hedges, MT, Hou, WS, Hsu, CL, Ipsita, N, Ishikawa, A, Itoh, R, Iwasaki, M, Jacobs, WW, Jia, S, Jin, Y, Joo, KK, Kawasaki, T, Kim, CH, Kim, DY, Kim, KH, Kim, YJ, Kim, YK, Kodyš, P, Korobov, A, Korpar, S, Kovalenko, E, KriŽan, P, Krokovny, P, Kuhr, T, Kumar, R, Kumara, K, Kumita, T, Kwon, YJ, Lai, YT, Lee, SC, Levit, D, Li, LK, Li, Y, Li, YB, Li Gioi, L, Libby, J, Liventsev, D, Luo, T, Masuda, M, Matsuda, T, Maurya, SK, Meier, F, Merola, M, Metzner, F, Miyabayashi, K, Mizuk, R, Mohanty, GB, Mussa, R, Nakamura, I, Nakao, M, Natkaniec, Z, Natochii, A, Nayak, L, Nayak, M, Niiyama, M, Nishida, S, Ogawa, S, Ono, H, Pakhlova, G, Pardi, S, Park, H, Park, J, Park, SH, Paul, S, Pestotnik, R, Piilonen, LE, Podobnik, T, Prencipe, E, Prim, MT, Röhrken, M, Russo, G, Sandilya, S, Santelj, L, Savinov, V, Schnell, G, Schwanda, C, Seino, Y, Senyo, K, Sevior, ME, Shan, W, Shiu, JG, Solovieva, E, Starič, M, Sumisawa, K, Takizawa, M, Tamponi, U, Tanida, K, Tenchini, F, Tiwary, R, Trabelsi, K, Uchida, M, Unno, Y, Uno, S, Urquijo, P, Usov, Y, Vahsen, SE, Varvell, KE, Vinokurova, A, Wang, MZ, Watanuki, S, Won, E, Xu, X, Yabsley, BD, Yan, W, Yook, Y, Yuan, L, Zhang, ZP, Zhilich, V & Zhukova, V 2024, 'Measurements of the Branching Fraction, Polarization, and CP Asymmetry for the Decay B0 →ωω', Physical Review Letters, vol. 133, no. 8, 081801. https://doi.org/10.1103/PhysRevLett.133.081801

TY - JOUR

T1 - Measurements of the Branching Fraction, Polarization, and CP Asymmetry for the Decay B0 →ωω

AU - Guan, Y.

AU - Schwartz, A. J.

AU - Kinoshita, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Ayad, R.

AU - Bahinipati, S.

AU - Banerjee, Sw

AU - Belous, K.

AU - Bennett, J.

AU - Bessner, M.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Biswas, D.

AU - Bobrov, A.

AU - Bodrov, D.

AU - Borah, J.

AU - Bozek, A.

AU - Bračko, M.

AU - Branchini, P.

AU - Browder, T. E.

AU - Budano, A.

AU - Campajola, M.

AU - Cao, L.

AU - Červenkov, D.

AU - Chang, M. C.

AU - Chang, P.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, H. E.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Choudhury, S.

AU - Das, S.

AU - De Nardo, G.

AU - De Pietro, G.

AU - Dhamija, R.

AU - Di Capua, F.

AU - Dingfelder, J.

AU - DoleŽal, Z.

AU - Dong, T. V.

AU - Dubey, S.

AU - Ecker, P.

AU - Epifanov, D.

AU - Ferber, T.

AU - Ferlewicz, D.

AU - Fulsom, B. G.

AU - Gaur, V.

AU - Giri, A.

AU - Goldenzweig, P.

AU - Graziani, E.

AU - Gu, T.

AU - Gudkova, K.

AU - Hadjivasiliou, C.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazra, S.

AU - Hedges, M. T.

AU - Hou, W. S.

AU - Hsu, C. L.

AU - Ipsita, N.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Jacobs, W. W.

AU - Jia, S.

AU - Jin, Y.

AU - Joo, K. K.

AU - Kawasaki, T.

AU - Kim, C. H.

AU - Kim, D. Y.

AU - Kim, K. H.

AU - Kim, Y. J.

AU - Kim, Y. K.

AU - Kodyš, P.

AU - Korobov, A.

AU - Korpar, S.

AU - Kovalenko, E.

AU - KriŽan, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kumar, R.

AU - Kumara, K.

AU - Kumita, T.

AU - Kwon, Y. J.

AU - Lai, Y. T.

AU - Lee, S. C.

AU - Levit, D.

AU - Li, L. K.

AU - Li, Y.

AU - Li, Y. B.

AU - Li Gioi, L.

AU - Libby, J.

AU - Liventsev, D.

AU - Luo, T.

AU - Masuda, M.

AU - Matsuda, T.

AU - Maurya, S. K.

AU - Meier, F.

AU - Merola, M.

AU - Metzner, F.

AU - Miyabayashi, K.

AU - Mizuk, R.

AU - Mohanty, G. B.

AU - Mussa, R.

AU - Nakamura, I.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Natochii, A.

AU - Nayak, L.

AU - Nayak, M.

AU - Niiyama, M.

AU - Nishida, S.

AU - Ogawa, S.

AU - Ono, H.

AU - Pakhlova, G.

AU - Pardi, S.

AU - Park, H.

AU - Park, J.

AU - Park, S. H.

AU - Paul, S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Podobnik, T.

AU - Prencipe, E.

AU - Prim, M. T.

AU - Röhrken, M.

AU - Russo, G.

AU - Sandilya, S.

AU - Santelj, L.

AU - Savinov, V.

AU - Schnell, G.

AU - Schwanda, C.

AU - Seino, Y.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shan, W.

AU - Shiu, J. G.

AU - Solovieva, E.

AU - Starič, M.

AU - Sumisawa, K.

AU - Takizawa, M.

AU - Tamponi, U.

AU - Tanida, K.

AU - Tenchini, F.

AU - Tiwary, R.

AU - Trabelsi, K.

AU - Uchida, M.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Usov, Y.

AU - Vahsen, S. E.

AU - Varvell, K. E.

AU - Vinokurova, A.

AU - Wang, M. Z.

AU - Watanuki, S.

AU - Won, E.

AU - Xu, X.

AU - Yabsley, B. D.

AU - Yan, W.

AU - Yook, Y.

AU - Yuan, L.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhukova, V.

N1 - Publisher Copyright: © 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

PY - 2024/8/23

Y1 - 2024/8/23

N2 - We present a comprehensive study of B0→ωω decays using 772×106 BB¯ pairs collected with the Belle detector at the KEKB e+e- collider. This process is a suppressed charmless decay into two vector mesons and can exhibit interesting polarization and CP violation. The decay is observed for the first time with a significance of 7.9 standard deviations. We measure a branching fraction B=(1.53±0.29±0.17)×10-6, a fraction of longitudinal polarization fL=0.87±0.13±0.13, and a time-integrated CP asymmetry ACP=-0.44±0.43±0.11, where the first uncertainties listed are statistical and the second are systematic. This is the first observation of B0→ωω and the first measurements of fL and ACP for this decay.

AB - We present a comprehensive study of B0→ωω decays using 772×106 BB¯ pairs collected with the Belle detector at the KEKB e+e- collider. This process is a suppressed charmless decay into two vector mesons and can exhibit interesting polarization and CP violation. The decay is observed for the first time with a significance of 7.9 standard deviations. We measure a branching fraction B=(1.53±0.29±0.17)×10-6, a fraction of longitudinal polarization fL=0.87±0.13±0.13, and a time-integrated CP asymmetry ACP=-0.44±0.43±0.11, where the first uncertainties listed are statistical and the second are systematic. This is the first observation of B0→ωω and the first measurements of fL and ACP for this decay.

UR - http://www.scopus.com/inward/record.url?scp=85202296274&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.133.081801

DO - 10.1103/PhysRevLett.133.081801

M3 - Article

AN - SCOPUS:85202296274

SN - 0031-9007

VL - 133

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

M1 - 081801

ER -

Measurements of the Branching Fraction, Polarization, and CP Asymmetry for the Decay B0 →ωω

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