Search for CP violation in D (s)+ →k+ KS0 h+h- (h=K, π) decays and observation of the Cabibbo-suppressed decay Ds+ →k+K- KS0 π+

H. K. Moon; E. Won; I. Adachi; H. Aihara; D. M. Asner; H. Atmacan; V. Aulchenko; T. Aushev; R. Ayad; V. Babu; S. Bahinipati; Sw Banerjee; M. Bauer; P. Behera; K. Belous; J. Bennett; M. Bessner; V. Bhardwaj; B. Bhuyan; D. Biswas; D. Bodrov; J. Borah; A. Bozek; M. Bračko; P. Branchini; T. E. Browder; A. Budano; M. Campajola; D. Červenkov; M. C. Chang; V. Chekelian; B. G. Cheon; K. Chilikin; H. E. Cho; K. Cho; Y. Choi; S. Choudhury; D. Cinabro; J. Cochran; S. Das; N. Dash; G. De Nardo; G. De Pietro; R. Dhamija; F. Di Capua; J. Dingfelder; Z. DoleŽal; T. V. Dong; D. Dossett; S. Dubey; D. Epifanov; T. Ferber; D. Ferlewicz; B. G. Fulsom; R. Garg; V. Gaur; A. Giri; P. Goldenzweig; E. Graziani; T. Gu; Y. Guan; K. Gudkova; S. Halder; T. Hara; K. Hayasaka; H. Hayashii; M. T. Hedges; D. Herrmann; W. S. Hou; C. L. Hsu; T. Iijima; K. Inami; G. Inguglia; N. Ipsita; A. Ishikawa; R. Itoh; M. Iwasaki; W. W. Jacobs; E. J. Jang; S. Jia; Y. Jin; K. K. Joo; A. B. Kaliyar; T. Kawasaki; C. Kiesling; C. H. Kim; D. Y. Kim; K. H. Kim; Y. K. Kim; K. Kinoshita; P. Kodyš; T. Konno; A. Korobov; S. Korpar; E. Kovalenko; P. KriŽan; P. Krokovny; T. Kuhr; M. Kumar; R. Kumar; K. Kumara; A. Kuzmin; Y. J. Kwon; K. Lalwani; J. S. Lange; S. C. Lee; J. Li; L. K. Li; Y. Li; J. Libby; K. Lieret; Y. R. Lin; D. Liventsev; T. Luo; Y. Ma; M. Masuda; T. Matsuda; D. Matvienko; S. K. Maurya; M. Merola; F. Metzner; K. Miyabayashi; R. Mizuk; G. B. Mohanty; I. Nakamura; M. Nakao; H. Nakazawa; A. Natochii; L. Nayak; N. K. Nisar; S. Nishida; K. Ogawa; S. Ogawa; H. Ono; P. Oskin; P. Pakhlov; G. Pakhlova; T. Pang; S. Pardi; H. Park; J. Park; S. H. Park; A. Passeri; S. Paul; T. K. Pedlar; R. Pestotnik; L. E. Piilonen; T. Podobnik; E. Prencipe; M. T. Prim; A. Rabusov; M. Röhrken; A. Rostomyan; N. Rout; G. Russo; S. Sandilya; L. Santelj; V. Savinov; G. Schnell; C. Schwanda; A. J. Schwartz; Y. Seino; K. Senyo; M. E. Sevior; M. Shapkin; C. Sharma; C. P. Shen; J. G. Shiu; A. Sokolov; E. Solovieva; M. Starič; M. Sumihama; T. Sumiyoshi; M. Takizawa; U. Tamponi; K. Tanida; F. Tenchini; K. Trabelsi; M. Uchida; T. Uglov; Y. Unno; K. Uno; S. Uno; P. Urquijo; S. E. Vahsen; R. Van Tonder; G. Varner; K. E. Varvell; A. Vinokurova; D. Wang; M. Z. Wang; M. Watanabe; S. Watanuki; J. Wiechczynski; B. D. Yabsley; W. Yan; S. B. Yang; J. Yelton; J. H. Yin; Y. Yook; C. Z. Yuan; L. Yuan; Y. Yusa; Y. Zhai; Z. P. Zhang; V. Zhilich; V. Zhukova

doi:10.1103/PhysRevD.108.L111102

Search for CP violation in D (s)+ →k+ KS0 h+h- (h=K, π) decays and observation of the Cabibbo-suppressed decay Ds+ →k+K- KS0 π+

H. K. Moon, E. Won, I. Adachi, H. Aihara, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, S. Bahinipati, Sw Banerjee, M. Bauer, P. Behera, K. Belous, J. Bennett, M. Bessner, V. Bhardwaj, B. Bhuyan, D. BiswasD. Bodrov, J. Borah, A. Bozek, M. Bračko, P. Branchini, T. E. Browder, A. Budano, M. Campajola, D. Červenkov, M. C. Chang, V. Chekelian, B. G. Cheon, K. Chilikin, H. E. Cho, K. Cho, Y. Choi, S. Choudhury, D. Cinabro, J. Cochran, S. Das, N. Dash, G. De Nardo, G. De Pietro, R. Dhamija, F. Di Capua, J. Dingfelder, Z. DoleŽal, T. V. Dong, D. Dossett, S. Dubey, D. Epifanov, T. Ferber, D. Ferlewicz, B. G. Fulsom, R. Garg, V. Gaur, A. Giri, P. Goldenzweig, E. Graziani, T. Gu, Y. Guan, K. Gudkova, S. Halder, T. Hara, K. Hayasaka, H. Hayashii, M. T. Hedges, D. Herrmann, W. S. Hou, C. L. Hsu, T. Iijima, K. Inami, G. Inguglia, N. Ipsita, A. Ishikawa, R. Itoh, M. Iwasaki, W. W. Jacobs, E. J. Jang, S. Jia, Y. Jin, K. K. Joo, A. B. Kaliyar, T. Kawasaki, C. Kiesling, C. H. Kim, D. Y. Kim, K. H. Kim, Y. K. Kim, K. Kinoshita, P. Kodyš, T. Konno, A. Korobov, S. Korpar, E. Kovalenko, P. KriŽan, P. Krokovny, T. Kuhr, M. Kumar, R. Kumar, K. Kumara, A. Kuzmin, Y. J. Kwon, K. Lalwani, J. S. Lange, S. C. Lee, J. Li, L. K. Li, Y. Li, J. Libby, K. Lieret, Y. R. Lin, D. Liventsev, T. Luo, Y. Ma, M. Masuda, T. Matsuda, D. Matvienko, S. K. Maurya, M. Merola, F. Metzner, K. Miyabayashi, R. Mizuk, G. B. Mohanty, I. Nakamura, M. Nakao, H. Nakazawa, A. Natochii, L. Nayak, N. K. Nisar, S. Nishida, K. Ogawa, S. Ogawa, H. Ono, P. Oskin, P. Pakhlov, G. Pakhlova, T. Pang, S. Pardi, H. Park, J. Park, S. H. Park, A. Passeri, S. Paul, T. K. Pedlar, R. Pestotnik, L. E. Piilonen, T. Podobnik, E. Prencipe, M. T. Prim, A. Rabusov, M. Röhrken, A. Rostomyan, N. Rout, G. Russo, S. Sandilya, L. Santelj, V. Savinov, G. Schnell, C. Schwanda, A. J. Schwartz, Y. Seino, K. Senyo, M. E. Sevior, M. Shapkin, C. Sharma, C. P. Shen, J. G. Shiu, A. Sokolov, E. Solovieva, M. Starič, M. Sumihama, T. Sumiyoshi, M. Takizawa, U. Tamponi, K. Tanida, F. Tenchini, K. Trabelsi, M. Uchida, T. Uglov, Y. Unno, K. Uno, S. Uno, P. Urquijo, S. E. Vahsen, R. Van Tonder, G. Varner, K. E. Varvell, A. Vinokurova, D. Wang, M. Z. Wang, M. Watanabe, S. Watanuki, J. Wiechczynski, B. D. Yabsley, W. Yan, S. B. Yang, J. Yelton, J. H. Yin, Y. Yook, C. Z. Yuan, L. Yuan, Y. Yusa, Y. Zhai, Z. P. Zhang, V. Zhilich, V. Zhukova

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

Abstract

We search for CP violation by measuring a T-odd asymmetry in the Cabibbo-suppressed D+→K+KS0π+π- decay, and in the Cabibbo-favored Ds+→K+KS0π+π- and D+→K+K-KS0π+ decays. We use 980 fb-1 of data collected by the Belle detector running at the KEKB asymmetric-energy e+e- collider. The CP-violating T-odd parameter aCPT-odd is measured to be aCPT-odd(D+→K+KS0π+π-)=(0.34±0.87±0.32)%, aCPT-odd(Ds+→K+KS0π+π-)=(-0.46±0.63±0.38)%, and aCPT-odd(D+→K+K-KS0π+)=(-3.34±2.66±0.35)%, where the first uncertainty is statistical and the second is systematic. We also report the first observation of the Cabibbo-suppressed decay Ds+→K+K-KS0π+. The branching fraction is measured relative to that of the analogous Cabibbo-favored decay: B(Ds+→K+K-KS0π+)/B(Ds+→K+KS0π+π-)=(1.36±0.15±0.04)%.

Original language	English
Article number	L111102
Journal	Physical Review D
Volume	108
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.108.L111102
Publication status	Published - 2023 Dec 1

Bibliographical note

Publisher Copyright:
© 2023 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.

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1103/PhysRevD.108.L111102

Cite this

Moon, H. K., Won, E., Adachi, I., Aihara, H., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Banerjee, S., Bauer, M., Behera, P., Belous, K., Bennett, J., Bessner, M., Bhardwaj, V., Bhuyan, B., ... Zhukova, V. (2023). Search for CP violation in D (s)+ →k+ KS0 h+h- (h=K, π) decays and observation of the Cabibbo-suppressed decay Ds+ →k+K- KS0 π+. Physical Review D, 108(11), Article L111102. https://doi.org/10.1103/PhysRevD.108.L111102

Moon, HK, Won, E, Adachi, I, Aihara, H, Asner, DM, Atmacan, H, Aulchenko, V, Aushev, T, Ayad, R, Babu, V, Bahinipati, S, Banerjee, S, Bauer, M, Behera, P, Belous, K, Bennett, J, Bessner, M, Bhardwaj, V, Bhuyan, B, Biswas, D, Bodrov, D, Borah, J, Bozek, A, Bračko, M, Branchini, P, Browder, TE, Budano, A, Campajola, M, Červenkov, D, Chang, MC, Chekelian, V, Cheon, BG, Chilikin, K, Cho, HE, Cho, K, Choi, Y, Choudhury, S, Cinabro, D, Cochran, J, Das, S, Dash, N, De Nardo, G, De Pietro, G, Dhamija, R, Di Capua, F, Dingfelder, J, DoleŽal, Z, Dong, TV, Dossett, D, Dubey, S, Epifanov, D, Ferber, T, Ferlewicz, D, Fulsom, BG, Garg, R, Gaur, V, Giri, A, Goldenzweig, P, Graziani, E, Gu, T, Guan, Y, Gudkova, K, Halder, S, Hara, T, Hayasaka, K, Hayashii, H, Hedges, MT, Herrmann, D, Hou, WS, Hsu, CL, Iijima, T, Inami, K, Inguglia, G, Ipsita, N, Ishikawa, A, Itoh, R, Iwasaki, M, Jacobs, WW, Jang, EJ, Jia, S, Jin, Y, Joo, KK, Kaliyar, AB, Kawasaki, T, Kiesling, C, Kim, CH, Kim, DY, Kim, KH, Kim, YK, Kinoshita, K, Kodyš, P, Konno, T, Korobov, A, Korpar, S, Kovalenko, E, KriŽan, P, Krokovny, P, Kuhr, T, Kumar, M, Kumar, R, Kumara, K, Kuzmin, A, Kwon, YJ, Lalwani, K, Lange, JS, Lee, SC, Li, J, Li, LK, Li, Y, Libby, J, Lieret, K, Lin, YR, Liventsev, D, Luo, T, Ma, Y, Masuda, M, Matsuda, T, Matvienko, D, Maurya, SK, Merola, M, Metzner, F, Miyabayashi, K, Mizuk, R, Mohanty, GB, Nakamura, I, Nakao, M, Nakazawa, H, Natochii, A, Nayak, L, Nisar, NK, Nishida, S, Ogawa, K, Ogawa, S, Ono, H, Oskin, P, Pakhlov, P, Pakhlova, G, Pang, T, Pardi, S, Park, H, Park, J, Park, SH, Passeri, A, Paul, S, Pedlar, TK, Pestotnik, R, Piilonen, LE, Podobnik, T, Prencipe, E, Prim, MT, Rabusov, A, Röhrken, M, Rostomyan, A, Rout, N, Russo, G, Sandilya, S, Santelj, L, Savinov, V, Schnell, G, Schwanda, C, Schwartz, AJ, Seino, Y, Senyo, K, Sevior, ME, Shapkin, M, Sharma, C, Shen, CP, Shiu, JG, Sokolov, A, Solovieva, E, Starič, M, Sumihama, M, Sumiyoshi, T, Takizawa, M, Tamponi, U, Tanida, K, Tenchini, F, Trabelsi, K, Uchida, M, Uglov, T, Unno, Y, Uno, K, Uno, S, Urquijo, P, Vahsen, SE, Van Tonder, R, Varner, G, Varvell, KE, Vinokurova, A, Wang, D, Wang, MZ, Watanabe, M, Watanuki, S, Wiechczynski, J, Yabsley, BD, Yan, W, Yang, SB, Yelton, J, Yin, JH, Yook, Y, Yuan, CZ, Yuan, L, Yusa, Y, Zhai, Y, Zhang, ZP, Zhilich, V & Zhukova, V 2023, 'Search for CP violation in D (s)+ →k+ KS0 h+h- (h=K, π) decays and observation of the Cabibbo-suppressed decay Ds+ →k+K- KS0 π+', Physical Review D, vol. 108, no. 11, L111102. https://doi.org/10.1103/PhysRevD.108.L111102

@article{1402304ae5ab479a83b34b84924687b9,

title = "Search for CP violation in D (s)+ →k+ KS0 h+h- (h=K, π) decays and observation of the Cabibbo-suppressed decay Ds+ →k+K- KS0 π+",

abstract = "We search for CP violation by measuring a T-odd asymmetry in the Cabibbo-suppressed D+→K+KS0π+π- decay, and in the Cabibbo-favored Ds+→K+KS0π+π- and D+→K+K-KS0π+ decays. We use 980 fb-1 of data collected by the Belle detector running at the KEKB asymmetric-energy e+e- collider. The CP-violating T-odd parameter aCPT-odd is measured to be aCPT-odd(D+→K+KS0π+π-)=(0.34±0.87±0.32)%, aCPT-odd(Ds+→K+KS0π+π-)=(-0.46±0.63±0.38)%, and aCPT-odd(D+→K+K-KS0π+)=(-3.34±2.66±0.35)%, where the first uncertainty is statistical and the second is systematic. We also report the first observation of the Cabibbo-suppressed decay Ds+→K+K-KS0π+. The branching fraction is measured relative to that of the analogous Cabibbo-favored decay: B(Ds+→K+K-KS0π+)/B(Ds+→K+KS0π+π-)=(1.36±0.15±0.04)%.",

author = "Moon, {H. K.} and E. Won and I. Adachi and H. Aihara and Asner, {D. M.} and H. Atmacan and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and S. Bahinipati and Sw Banerjee and M. Bauer and P. Behera and K. Belous and J. Bennett and M. Bessner and V. Bhardwaj and B. Bhuyan and D. Biswas 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 D. {\v C}ervenkov and Chang, {M. C.} and V. Chekelian and Cheon, {B. G.} and K. Chilikin and Cho, {H. E.} and K. Cho and Y. Choi and S. Choudhury and D. Cinabro and J. Cochran and S. Das and N. Dash 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 D. Dossett and S. Dubey and D. Epifanov and T. Ferber and D. Ferlewicz and Fulsom, {B. G.} and R. Garg and V. Gaur and A. Giri and P. Goldenzweig and E. Graziani and T. Gu and Y. Guan and K. Gudkova and S. Halder and T. Hara and K. Hayasaka and H. Hayashii and Hedges, {M. T.} and D. Herrmann and Hou, {W. S.} and Hsu, {C. L.} and T. Iijima and K. Inami and G. Inguglia and N. Ipsita and A. Ishikawa and R. Itoh and M. Iwasaki and Jacobs, {W. W.} and Jang, {E. J.} and S. Jia and Y. Jin and Joo, {K. K.} and Kaliyar, {A. B.} and T. Kawasaki and C. Kiesling and Kim, {C. H.} and Kim, {D. Y.} and Kim, {K. H.} and Kim, {Y. K.} and K. Kinoshita and P. Kody{\v s} and T. Konno and A. Korobov and S. Korpar and E. Kovalenko and P. Kri{\v Z}an and P. Krokovny and T. Kuhr and M. Kumar and R. Kumar and K. Kumara and A. Kuzmin and Kwon, {Y. J.} and K. Lalwani and Lange, {J. S.} and Lee, {S. C.} and J. Li and Li, {L. K.} and Y. Li and J. Libby and K. Lieret and Lin, {Y. R.} and D. Liventsev and T. Luo and Y. Ma and M. Masuda and T. Matsuda and D. Matvienko and Maurya, {S. K.} and M. Merola and F. Metzner and K. Miyabayashi and R. Mizuk and Mohanty, {G. B.} and I. Nakamura and M. Nakao and H. Nakazawa and A. Natochii and L. Nayak and Nisar, {N. K.} and S. Nishida and K. Ogawa and S. Ogawa and H. Ono and P. Oskin and P. Pakhlov and G. Pakhlova and T. Pang and S. Pardi and H. Park and J. Park and Park, {S. H.} and A. Passeri and S. Paul and Pedlar, {T. K.} and R. Pestotnik and Piilonen, {L. E.} and T. Podobnik and E. Prencipe and Prim, {M. T.} and A. Rabusov and M. R{\"o}hrken and A. Rostomyan and N. Rout and G. Russo and S. Sandilya and L. Santelj and V. Savinov and G. Schnell and C. Schwanda and Schwartz, {A. J.} and Y. Seino and K. Senyo and Sevior, {M. E.} and M. Shapkin and C. Sharma and Shen, {C. P.} and Shiu, {J. G.} and A. Sokolov and E. Solovieva and M. Stari{\v c} and M. Sumihama and T. Sumiyoshi and M. Takizawa and U. Tamponi and K. Tanida and F. Tenchini and K. Trabelsi and M. Uchida and T. Uglov and Y. Unno and K. Uno and S. Uno and P. Urquijo and Vahsen, {S. E.} and {Van Tonder}, R. and G. Varner and Varvell, {K. E.} and A. Vinokurova and D. Wang and Wang, {M. Z.} and M. Watanabe and S. Watanuki and J. Wiechczynski and Yabsley, {B. D.} and W. Yan and Yang, {S. B.} and J. Yelton and Yin, {J. H.} and Y. Yook and Yuan, {C. Z.} and L. Yuan and Y. Yusa and Y. Zhai and Zhang, {Z. P.} and V. Zhilich and V. Zhukova",

note = "Publisher Copyright: {\textcopyright} 2023 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 = "2023",

month = dec,

day = "1",

doi = "10.1103/PhysRevD.108.L111102",

language = "English",

volume = "108",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "11",

}

TY - JOUR

T1 - Search for CP violation in D (s)+ →k+ KS0 h+h- (h=K, π) decays and observation of the Cabibbo-suppressed decay Ds+ →k+K- KS0 π+

AU - Moon, H. K.

AU - Won, E.

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Bahinipati, S.

AU - Banerjee, Sw

AU - Bauer, M.

AU - Behera, P.

AU - Belous, K.

AU - Bennett, J.

AU - Bessner, M.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Biswas, D.

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 - Červenkov, D.

AU - Chang, M. C.

AU - Chekelian, V.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, H. E.

AU - Cho, K.

AU - Choi, Y.

AU - Choudhury, S.

AU - Cinabro, D.

AU - Cochran, J.

AU - Das, S.

AU - Dash, N.

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 - Dossett, D.

AU - Dubey, S.

AU - Epifanov, D.

AU - Ferber, T.

AU - Ferlewicz, D.

AU - Fulsom, B. G.

AU - Garg, R.

AU - Gaur, V.

AU - Giri, A.

AU - Goldenzweig, P.

AU - Graziani, E.

AU - Gu, T.

AU - Guan, Y.

AU - Gudkova, K.

AU - Halder, S.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hedges, M. T.

AU - Herrmann, D.

AU - Hou, W. S.

AU - Hsu, C. L.

AU - Iijima, T.

AU - Inami, K.

AU - Inguglia, G.

AU - Ipsita, N.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Jacobs, W. W.

AU - Jang, E. J.

AU - Jia, S.

AU - Jin, Y.

AU - Joo, K. K.

AU - Kaliyar, A. B.

AU - Kawasaki, T.

AU - Kiesling, C.

AU - Kim, C. H.

AU - Kim, D. Y.

AU - Kim, K. H.

AU - Kim, Y. K.

AU - Kinoshita, K.

AU - Kodyš, P.

AU - Konno, T.

AU - Korobov, A.

AU - Korpar, S.

AU - Kovalenko, E.

AU - KriŽan, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kumar, M.

AU - Kumar, R.

AU - Kumara, K.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lalwani, K.

AU - Lange, J. S.

AU - Lee, S. C.

AU - Li, J.

AU - Li, L. K.

AU - Li, Y.

AU - Libby, J.

AU - Lieret, K.

AU - Lin, Y. R.

AU - Liventsev, D.

AU - Luo, T.

AU - Ma, Y.

AU - Masuda, M.

AU - Matsuda, T.

AU - Matvienko, D.

AU - Maurya, S. K.

AU - Merola, M.

AU - Metzner, F.

AU - Miyabayashi, K.

AU - Mizuk, R.

AU - Mohanty, G. B.

AU - Nakamura, I.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Natochii, A.

AU - Nayak, L.

AU - Nisar, N. K.

AU - Nishida, S.

AU - Ogawa, K.

AU - Ogawa, S.

AU - Ono, H.

AU - Oskin, P.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Pang, T.

AU - Pardi, S.

AU - Park, H.

AU - Park, J.

AU - Park, S. H.

AU - Passeri, A.

AU - Paul, S.

AU - Pedlar, T. K.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Podobnik, T.

AU - Prencipe, E.

AU - Prim, M. T.

AU - Rabusov, A.

AU - Röhrken, M.

AU - Rostomyan, A.

AU - Rout, N.

AU - Russo, G.

AU - Sandilya, S.

AU - Santelj, L.

AU - Savinov, V.

AU - Schnell, G.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Seino, Y.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Sharma, C.

AU - Shen, C. P.

AU - Shiu, J. G.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Starič, M.

AU - Sumihama, M.

AU - Sumiyoshi, T.

AU - Takizawa, M.

AU - Tamponi, U.

AU - Tanida, K.

AU - Tenchini, F.

AU - Trabelsi, K.

AU - Uchida, M.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, K.

AU - Uno, S.

AU - Urquijo, P.

AU - Vahsen, S. E.

AU - Van Tonder, R.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vinokurova, A.

AU - Wang, D.

AU - Wang, M. Z.

AU - Watanabe, M.

AU - Watanuki, S.

AU - Wiechczynski, J.

AU - Yabsley, B. D.

AU - Yan, W.

AU - Yang, S. B.

AU - Yelton, J.

AU - Yin, J. H.

AU - Yook, Y.

AU - Yuan, C. Z.

AU - Yuan, L.

AU - Yusa, Y.

AU - Zhai, Y.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhukova, V.

N1 - Publisher Copyright: © 2023 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 - 2023/12/1

Y1 - 2023/12/1

N2 - We search for CP violation by measuring a T-odd asymmetry in the Cabibbo-suppressed D+→K+KS0π+π- decay, and in the Cabibbo-favored Ds+→K+KS0π+π- and D+→K+K-KS0π+ decays. We use 980 fb-1 of data collected by the Belle detector running at the KEKB asymmetric-energy e+e- collider. The CP-violating T-odd parameter aCPT-odd is measured to be aCPT-odd(D+→K+KS0π+π-)=(0.34±0.87±0.32)%, aCPT-odd(Ds+→K+KS0π+π-)=(-0.46±0.63±0.38)%, and aCPT-odd(D+→K+K-KS0π+)=(-3.34±2.66±0.35)%, where the first uncertainty is statistical and the second is systematic. We also report the first observation of the Cabibbo-suppressed decay Ds+→K+K-KS0π+. The branching fraction is measured relative to that of the analogous Cabibbo-favored decay: B(Ds+→K+K-KS0π+)/B(Ds+→K+KS0π+π-)=(1.36±0.15±0.04)%.

AB - We search for CP violation by measuring a T-odd asymmetry in the Cabibbo-suppressed D+→K+KS0π+π- decay, and in the Cabibbo-favored Ds+→K+KS0π+π- and D+→K+K-KS0π+ decays. We use 980 fb-1 of data collected by the Belle detector running at the KEKB asymmetric-energy e+e- collider. The CP-violating T-odd parameter aCPT-odd is measured to be aCPT-odd(D+→K+KS0π+π-)=(0.34±0.87±0.32)%, aCPT-odd(Ds+→K+KS0π+π-)=(-0.46±0.63±0.38)%, and aCPT-odd(D+→K+K-KS0π+)=(-3.34±2.66±0.35)%, where the first uncertainty is statistical and the second is systematic. We also report the first observation of the Cabibbo-suppressed decay Ds+→K+K-KS0π+. The branching fraction is measured relative to that of the analogous Cabibbo-favored decay: B(Ds+→K+K-KS0π+)/B(Ds+→K+KS0π+π-)=(1.36±0.15±0.04)%.

UR - http://www.scopus.com/inward/record.url?scp=85180961226&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.108.L111102

DO - 10.1103/PhysRevD.108.L111102

M3 - Article

AN - SCOPUS:85180961226

SN - 2470-0010

VL - 108

JO - Physical Review D

JF - Physical Review D

IS - 11

M1 - L111102

ER -

Search for CP violation in D (s)+ →k+ KS0 h+h- (h=K, π) decays and observation of the Cabibbo-suppressed decay Ds+ →k+K- KS0 π+

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