Evidence for semileptonic B-→ pp̄ℓ- ν̄ℓ decays

K. J. Tien; M. Z. Wang; I. Adachi; H. Aihara; D. M. Asner; V. Aulchenko; T. Aushev; A. M. Bakich; A. Bala; B. Bhuyan; A. Bozek; M. Bračko; T. E. Browder; P. Chang; V. Chekelian; A. Chen; P. Chen; B. G. Cheon; K. Chilikin; R. Chistov; I. S. Cho; K. Cho; V. Chobanova; Y. Choi; D. Cinabro; J. Dalseno; M. Danilov; Z. Doležal; Z. Drásal; D. Dutta; S. Eidelman; H. Farhat; J. E. Fast; T. Ferber; V. Gaur; S. Ganguly; R. Gillard; Y. M. Goh; B. Golob; J. Haba; H. Hayashii; Y. Horii; Y. Hoshi; W. S. Hou; Y. B. Hsiung; M. Huschle; H. J. Hyun; T. Iijima; A. Ishikawa; R. Itoh; Y. Iwasaki; T. Julius; D. H. Kah; J. H. Kang; E. Kato; T. Kawasaki; H. Kichimi; C. Kiesling; D. Y. Kim; H. J. Kim; J. B. Kim; J. H. Kim; Y. J. Kim; J. Klucar; B. R. Ko; P. Kodyš; S. Korpar; P. Križan; P. Krokovny; B. Kronenbitter; T. Kuhr; T. Kumita; A. Kuzmin; Y. J. Kwon; S. H. Lee; J. Li; Y. Li; J. Libby; C. Liu; Y. Liu; D. Liventsev; P. Lukin; K. Miyabayashi; H. Miyata; G. B. Mohanty; A. Moll; R. Mussa; E. Nakano; M. Nakao; Z. Natkaniec; M. Nayak; E. Nedelkovska; C. Ng; N. K. Nisar; S. Nishida; O. Nitoh; S. Ogawa; S. Okuno; S. L. Olsen; W. Ostrowicz; C. Oswald; C. W. Park; H. Park; H. K. Park; T. K. Pedlar; R. Pestotnik; M. Petrič; L. E. Piilonen; M. Ritter; M. Röhrken; A. Rostomyan; H. Sahoo; T. Saito; Y. Sakai; S. Sandilya; D. Santel; L. Santelj; T. Sanuki; Y. Sato; V. Savinov; O. Schneider; G. Schnell; C. Schwanda; D. Semmler; K. Senyo; O. Seon; M. E. Sevior; M. Shapkin; C. P. Shen; T. A. Shibata; J. G. Shiu; A. Sibidanov; Y. S. Sohn; A. Sokolov; S. Stanič; M. Starič; M. Steder; M. Sumihama; T. Sumiyoshi; K. Tanida; G. Tatishvili; Y. Teramoto; M. Uchida; S. Uehara; T. Uglov; Y. Unno; S. Uno; P. Urquijo; S. E. Vahsen; C. Van Hulse; P. Vanhoefer; G. Varner; K. E. Varvell; A. Vinokurova; V. Vorobyev; M. N. Wagner; C. H. Wang; P. Wang; M. Watanabe; Y. Watanabe; K. M. Williams; E. Won; J. Yamaoka; Y. Yamashita; S. Yashchenko; Z. P. Zhang; V. Zhilich; V. Zhulanov; A. Zupanc

doi:10.1103/PhysRevD.89.011101

Evidence for semileptonic B-→ pp̄ℓ- ν̄ℓ decays

K. J. Tien^*, M. Z. Wang, I. Adachi, H. Aihara, D. M. Asner, V. Aulchenko, T. Aushev, A. M. Bakich, A. Bala, B. Bhuyan, A. Bozek, M. Bračko, T. E. Browder, P. Chang, V. Chekelian, A. Chen, P. Chen, B. G. Cheon, K. Chilikin, R. ChistovI. S. Cho, K. Cho, V. Chobanova, Y. Choi, D. Cinabro, J. Dalseno, M. Danilov, Z. Doležal, Z. Drásal, D. Dutta, S. Eidelman, H. Farhat, J. E. Fast, T. Ferber, V. Gaur, S. Ganguly, R. Gillard, Y. M. Goh, B. Golob, J. Haba, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, M. Huschle, H. J. Hyun, T. Iijima, A. Ishikawa, R. Itoh, Y. Iwasaki, T. Julius, D. H. Kah, J. H. Kang, E. Kato, T. Kawasaki, H. Kichimi, C. Kiesling, D. Y. Kim, H. J. Kim, J. B. Kim, J. H. Kim, Y. J. Kim, J. Klucar, B. R. Ko, P. Kodyš, S. Korpar, P. Križan, P. Krokovny, B. Kronenbitter, T. Kuhr, T. Kumita, A. Kuzmin, Y. J. Kwon, S. H. Lee, J. Li, Y. Li, J. Libby, C. Liu, Y. Liu, D. Liventsev, P. Lukin, K. Miyabayashi, H. Miyata, G. B. Mohanty, A. Moll, R. Mussa, E. Nakano, M. Nakao, Z. Natkaniec, M. Nayak, E. Nedelkovska, C. Ng, N. K. Nisar, S. Nishida, O. Nitoh, S. Ogawa, S. Okuno, S. L. Olsen, W. Ostrowicz, C. Oswald, C. W. Park, H. Park, H. K. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Ritter, M. Röhrken, A. Rostomyan, H. Sahoo, T. Saito, Y. Sakai, S. Sandilya, D. Santel, L. Santelj, T. Sanuki, Y. Sato, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, D. Semmler, K. Senyo, O. Seon, M. E. Sevior, M. Shapkin, C. P. Shen, T. A. Shibata, J. G. Shiu, A. Sibidanov, Y. S. Sohn, A. Sokolov, S. Stanič, M. Starič, M. Steder, M. Sumihama, T. Sumiyoshi, K. Tanida, G. Tatishvili, Y. Teramoto, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, S. E. Vahsen, C. Van Hulse, P. Vanhoefer, G. Varner, K. E. Varvell, A. Vinokurova, V. Vorobyev, M. N. Wagner, C. H. Wang, P. Wang, M. Watanabe, Y. Watanabe, K. M. Williams, E. Won, J. Yamaoka, Y. Yamashita, S. Yashchenko, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

^*Corresponding author for this work

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

Abstract

We find evidence for the semileptonic baryonic decay B-→pp̄ℓ- ν̄ℓ (ℓ=e, μ), based on a data sample of 772 million BB̄ pairs collected at the Ï (4S) resonance with the Belle detector at the KEKB asymmetric-energy electron-positron collider. A neural-network based hadronic B-meson tagging method is used in this study. The branching fraction of B-→pp̄ℓ-ν̄ℓ is measured to be (5.8-2.1+2.4(stat) ±0.9(syst))×10-6 with a significance of 3.2σ, where lepton universality is assumed. We also estimate the corresponding upper limit: B(B-→pp̄ℓ-ν̄ℓ)<9.6×10-6 at the 90% confidence level. This measurement helps constrain the baryonic transition form factor in B decays.

Original language	English
Article number	011101
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	89
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.89.011101
State	Published - 9 Jan 2014
Externally published	Yes

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10.1103/PhysRevD.89.011101

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Tien, K. J., Wang, M. Z., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Bala, A., Bhuyan, B., Bozek, A., Bračko, M., Browder, T. E., Chang, P., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., ... Zupanc, A. (2014). Evidence for semileptonic B-→ pp̄ℓ- ν̄ℓ decays. Physical Review D - Particles, Fields, Gravitation and Cosmology, 89(1), Article 011101. https://doi.org/10.1103/PhysRevD.89.011101

@article{e1cc2be559944f80a8074a1b7a2c16f2,

title = "Evidence for semileptonic B-→ p{\=p}ℓ- {\=ν}ℓ decays",

abstract = "We find evidence for the semileptonic baryonic decay B-→p{\=p}ℓ- {\=ν}ℓ (ℓ=e, μ), based on a data sample of 772 million B{\=B} pairs collected at the {\"I} (4S) resonance with the Belle detector at the KEKB asymmetric-energy electron-positron collider. A neural-network based hadronic B-meson tagging method is used in this study. The branching fraction of B-→p{\=p}ℓ-{\=ν}ℓ is measured to be (5.8-2.1+2.4(stat) ±0.9(syst))×10-6 with a significance of 3.2σ, where lepton universality is assumed. We also estimate the corresponding upper limit: B(B-→p{\=p}ℓ-{\=ν}ℓ)<9.6×10-6 at the 90% confidence level. This measurement helps constrain the baryonic transition form factor in B decays.",

author = "Tien, {K. J.} and Wang, {M. Z.} and I. Adachi and H. Aihara and Asner, {D. M.} and V. Aulchenko and T. Aushev and Bakich, {A. M.} and A. Bala and B. Bhuyan and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and P. Chang and V. Chekelian and A. Chen and P. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and Cho, {I. S.} and K. Cho and V. Chobanova and Y. Choi and D. Cinabro and J. Dalseno and M. Danilov and Z. Dole{\v z}al and Z. Dr{\'a}sal and D. Dutta and S. Eidelman and H. Farhat and Fast, {J. E.} and T. Ferber and V. Gaur and S. Ganguly and R. Gillard and Goh, {Y. M.} and B. Golob and J. Haba and H. Hayashii and Y. Horii and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and M. Huschle and Hyun, {H. J.} and T. Iijima and A. Ishikawa and R. Itoh and Y. Iwasaki and T. Julius and Kah, {D. H.} and Kang, {J. H.} and E. Kato and T. Kawasaki and H. Kichimi and C. Kiesling and Kim, {D. Y.} and Kim, {H. J.} and Kim, {J. B.} and Kim, {J. H.} and Kim, {Y. J.} and J. Klucar and Ko, {B. R.} and P. Kody{\v s} and S. Korpar and P. Kri{\v z}an and P. Krokovny and B. Kronenbitter and T. Kuhr and T. Kumita and A. Kuzmin and Kwon, {Y. J.} and Lee, {S. H.} and J. Li and Y. Li and J. Libby and C. Liu and Y. Liu and D. Liventsev and P. Lukin and K. Miyabayashi and H. Miyata and Mohanty, {G. B.} and A. Moll and R. Mussa and E. Nakano and M. Nakao and Z. Natkaniec and M. Nayak and E. Nedelkovska and C. Ng and Nisar, {N. K.} and S. Nishida and O. Nitoh and S. Ogawa and S. Okuno and Olsen, {S. L.} and W. Ostrowicz and C. Oswald and Park, {C. W.} and H. Park and Park, {H. K.} and Pedlar, {T. K.} and R. Pestotnik and M. Petri{\v c} and Piilonen, {L. E.} and M. Ritter and M. R{\"o}hrken and A. Rostomyan and H. Sahoo and T. Saito and Y. Sakai and S. Sandilya and D. Santel and L. Santelj and T. Sanuki and Y. Sato and V. Savinov and O. Schneider and G. Schnell and C. Schwanda and D. Semmler and K. Senyo and O. Seon and Sevior, {M. E.} and M. Shapkin and Shen, {C. P.} and Shibata, {T. A.} and Shiu, {J. G.} and A. Sibidanov and Sohn, {Y. S.} and A. Sokolov and S. Stani{\v c} and M. Stari{\v c} and M. Steder and M. Sumihama and T. Sumiyoshi and K. Tanida and G. Tatishvili and Y. Teramoto and M. Uchida and S. Uehara and T. Uglov and Y. Unno and S. Uno and P. Urquijo and Vahsen, {S. E.} and {Van Hulse}, C. and P. Vanhoefer and G. Varner and Varvell, {K. E.} and A. Vinokurova and V. Vorobyev and Wagner, {M. N.} and Wang, {C. H.} and P. Wang and M. Watanabe and Y. Watanabe and Williams, {K. M.} and E. Won and J. Yamaoka and Y. Yamashita and S. Yashchenko and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov and A. Zupanc",

year = "2014",

month = jan,

day = "9",

doi = "10.1103/PhysRevD.89.011101",

language = "אנגלית",

volume = "89",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "1",

}

Tien, KJ, Wang, MZ, Adachi, I, Aihara, H, Asner, DM, Aulchenko, V, Aushev, T, Bakich, AM, Bala, A, Bhuyan, B, Bozek, A, Bračko, M, Browder, TE, Chang, P, Chekelian, V, Chen, A, Chen, P, Cheon, BG, Chilikin, K, Chistov, R, Cho, IS, Cho, K, Chobanova, V, Choi, Y, Cinabro, D, Dalseno, J, Danilov, M, Doležal, Z, Drásal, Z, Dutta, D, Eidelman, S, Farhat, H, Fast, JE, Ferber, T, Gaur, V, Ganguly, S, Gillard, R, Goh, YM, Golob, B, Haba, J, Hayashii, H, Horii, Y, Hoshi, Y, Hou, WS, Hsiung, YB, Huschle, M, Hyun, HJ, Iijima, T, Ishikawa, A, Itoh, R, Iwasaki, Y, Julius, T, Kah, DH, Kang, JH, Kato, E, Kawasaki, T, Kichimi, H, Kiesling, C, Kim, DY, Kim, HJ, Kim, JB, Kim, JH, Kim, YJ, Klucar, J, Ko, BR, Kodyš, P, Korpar, S, Križan, P, Krokovny, P, Kronenbitter, B, Kuhr, T, Kumita, T, Kuzmin, A, Kwon, YJ, Lee, SH, Li, J, Li, Y, Libby, J, Liu, C, Liu, Y, Liventsev, D, Lukin, P, Miyabayashi, K, Miyata, H, Mohanty, GB, Moll, A, Mussa, R, Nakano, E, Nakao, M, Natkaniec, Z, Nayak, M, Nedelkovska, E, Ng, C, Nisar, NK, Nishida, S, Nitoh, O, Ogawa, S, Okuno, S, Olsen, SL, Ostrowicz, W, Oswald, C, Park, CW, Park, H, Park, HK, Pedlar, TK, Pestotnik, R, Petrič, M, Piilonen, LE, Ritter, M, Röhrken, M, Rostomyan, A, Sahoo, H, Saito, T, Sakai, Y, Sandilya, S, Santel, D, Santelj, L, Sanuki, T, Sato, Y, Savinov, V, Schneider, O, Schnell, G, Schwanda, C, Semmler, D, Senyo, K, Seon, O, Sevior, ME, Shapkin, M, Shen, CP, Shibata, TA, Shiu, JG, Sibidanov, A, Sohn, YS, Sokolov, A, Stanič, S, Starič, M, Steder, M, Sumihama, M, Sumiyoshi, T, Tanida, K, Tatishvili, G, Teramoto, Y, Uchida, M, Uehara, S, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Vahsen, SE, Van Hulse, C, Vanhoefer, P, Varner, G, Varvell, KE, Vinokurova, A, Vorobyev, V, Wagner, MN, Wang, CH, Wang, P, Watanabe, M, Watanabe, Y, Williams, KM, Won, E, Yamaoka, J, Yamashita, Y, Yashchenko, S, Zhang, ZP, Zhilich, V, Zhulanov, V & Zupanc, A 2014, 'Evidence for semileptonic B-→ pp̄ℓ- ν̄ℓ decays', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 89, no. 1, 011101. https://doi.org/10.1103/PhysRevD.89.011101

TY - JOUR

T1 - Evidence for semileptonic B-→ pp̄ℓ- ν̄ℓ decays

AU - Tien, K. J.

AU - Wang, M. Z.

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Bala, A.

AU - Bhuyan, B.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, P.

AU - Chekelian, V.

AU - Chen, A.

AU - Chen, P.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, I. S.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dalseno, J.

AU - Danilov, M.

AU - Doležal, Z.

AU - Drásal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Gaur, V.

AU - Ganguly, S.

AU - Gillard, R.

AU - Goh, Y. M.

AU - Golob, B.

AU - Haba, J.

AU - Hayashii, H.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Huschle, M.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, Y.

AU - Julius, T.

AU - Kah, D. H.

AU - Kang, J. H.

AU - Kato, E.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kiesling, C.

AU - Kim, D. Y.

AU - Kim, H. J.

AU - Kim, J. B.

AU - Kim, J. H.

AU - Kim, Y. J.

AU - Klucar, J.

AU - Ko, B. R.

AU - Kodyš, P.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kronenbitter, B.

AU - Kuhr, T.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lee, S. H.

AU - Li, J.

AU - Li, Y.

AU - Libby, J.

AU - Liu, C.

AU - Liu, Y.

AU - Liventsev, D.

AU - Lukin, P.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Mohanty, G. B.

AU - Moll, A.

AU - Mussa, R.

AU - Nakano, E.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Nayak, M.

AU - Nedelkovska, E.

AU - Ng, C.

AU - Nisar, N. K.

AU - Nishida, S.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ostrowicz, W.

AU - Oswald, C.

AU - Park, C. W.

AU - Park, H.

AU - Park, H. K.

AU - Pedlar, T. K.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Ritter, M.

AU - Röhrken, M.

AU - Rostomyan, A.

AU - Sahoo, H.

AU - Saito, T.

AU - Sakai, Y.

AU - Sandilya, S.

AU - Santel, D.

AU - Santelj, L.

AU - Sanuki, T.

AU - Sato, Y.

AU - Savinov, V.

AU - Schneider, O.

AU - Schnell, G.

AU - Schwanda, C.

AU - Semmler, D.

AU - Senyo, K.

AU - Seon, O.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shen, C. P.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Sibidanov, A.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Stanič, S.

AU - Starič, M.

AU - Steder, M.

AU - Sumihama, M.

AU - Sumiyoshi, T.

AU - Tanida, K.

AU - Tatishvili, G.

AU - Teramoto, Y.

AU - Uchida, M.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Vahsen, S. E.

AU - Van Hulse, C.

AU - Vanhoefer, P.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vinokurova, A.

AU - Vorobyev, V.

AU - Wagner, M. N.

AU - Wang, C. H.

AU - Wang, P.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Williams, K. M.

AU - Won, E.

AU - Yamaoka, J.

AU - Yamashita, Y.

AU - Yashchenko, S.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zupanc, A.

PY - 2014/1/9

Y1 - 2014/1/9

N2 - We find evidence for the semileptonic baryonic decay B-→pp̄ℓ- ν̄ℓ (ℓ=e, μ), based on a data sample of 772 million BB̄ pairs collected at the Ï (4S) resonance with the Belle detector at the KEKB asymmetric-energy electron-positron collider. A neural-network based hadronic B-meson tagging method is used in this study. The branching fraction of B-→pp̄ℓ-ν̄ℓ is measured to be (5.8-2.1+2.4(stat) ±0.9(syst))×10-6 with a significance of 3.2σ, where lepton universality is assumed. We also estimate the corresponding upper limit: B(B-→pp̄ℓ-ν̄ℓ)<9.6×10-6 at the 90% confidence level. This measurement helps constrain the baryonic transition form factor in B decays.

AB - We find evidence for the semileptonic baryonic decay B-→pp̄ℓ- ν̄ℓ (ℓ=e, μ), based on a data sample of 772 million BB̄ pairs collected at the Ï (4S) resonance with the Belle detector at the KEKB asymmetric-energy electron-positron collider. A neural-network based hadronic B-meson tagging method is used in this study. The branching fraction of B-→pp̄ℓ-ν̄ℓ is measured to be (5.8-2.1+2.4(stat) ±0.9(syst))×10-6 with a significance of 3.2σ, where lepton universality is assumed. We also estimate the corresponding upper limit: B(B-→pp̄ℓ-ν̄ℓ)<9.6×10-6 at the 90% confidence level. This measurement helps constrain the baryonic transition form factor in B decays.

UR - http://www.scopus.com/inward/record.url?scp=84894424324&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.89.011101

DO - 10.1103/PhysRevD.89.011101

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:84894424324

SN - 1550-7998

VL - 89

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 1

M1 - 011101

ER -

Evidence for semileptonic B-→ pp̄ℓ- ν̄ℓ decays

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