Abstract
We report an observation of the B±→ J/ψηK± and B0 → J/ψηK0S decays using 772 × 106BB¯ pairs collected at the γ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the branching fractions B(B?→ J/ψηK±) = (1.27 ±0.11(stat.) ±0.11(syst.)) ×10-4 and B(B0 → J/ψηK0 S ) = (5.22 ±0.78(stat.) ± 0.49(syst.)) ×10-5. We search for a new narrow charmonium(-like) state X in the J/ψη mass spectrum and find no significant excess. We set upper limits on the product of branching fractions, B(B±→ X K± )B(X → J/ψη), at 3872MeVc-2 where aC-odd partner of X(3872) may exist, at ψ(4040) and ψ(4160) assuming their known mass and width, and over a range from 3.8 to 4.8 GeV c-2. The obtained upper limits at 90% confidence level for XC-odd(3872), ψ(4040), and ψ(4160) are 3.8 ×10-6, 15.5 ×10-6, and 7.4 ×10-6, respectively.
| Original language | English |
|---|---|
| Article number | 43C01 |
| Journal | Progress of Theoretical and Experimental Physics |
| Volume | 2014 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2014 Apr 16 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Measurement of branching fractions for B → J/ψηK decays and search for a narrow resonance in the J/ψη final state. / Iwashita, T.; Miyabayashi, K.; Bhardwaj, V.; Adachi, I.; Aihara, H.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Bala, A.; Bhuyan, B.; Bonvicini, G.; Bozek, A.; Bračko, M.; Browder, T. E.; Chang, M. C.; Chen, A.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, S. K.; Choi, Y.; Cinabro, D.; Dalseno, J.; Danilov, M.; Doležal, Z.; Drásal, Z.; Dutta, D.; Eidelman, S.; Esen, S.; Farhat, H.; Fast, J. E.; Feindt, M.; Ferber, T.; Frey, A.; Gaur, V.; Gabyshev, N.; Ganguly, S.; Gillard, R.; Goh, Y. M.; Golob, B.; Haba, J.; Hara, T.; Hayasaka, K.; Hayashii, H.; Higuchi, T.; Horii, Y.; Hoshi, Y.; Hou, W. S.; Hyun, H. J.; Iijima, T.; Ishikawa, Akimasa; Itoh, R.; Iwasaki, Y.; Jaegle, I.; Julius, T.; Kah, D. H.; Kang, J. H.; Kato, E.; Kawasaki, T.; Kichimi, H.; Kiesling, C.; Kim, D. Y.; Kim, H. J.; Kim, H. O.; Kim, J. B.; Kim, J. H.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Klucar, J.; Ko, B. R.; Kodyšs, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kuhr, T.; Kumita, T.; Kuzmin, A.; Kwon, Y. J.; Lange, J. S.; Lee, S. H.; Li, Y.; Libby, J.; Liu, C.; Liu, Y.; Lukin, P.; Matvienko, D.; Miyata, H.; Mizuk, R.; Moll, A.; Mori, T.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Nayak, M.; Ng, C.; Nisar, N. K.; Nishida, S.; Nitoh, O.; Ogawa, S.; Okuno, S.; Pakhlova, G.; Panzenböck, E.; Park, H.; Park, H. K.; Pedlar, T. K.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Ritter, M.; Röhrken, M.; Rostomyan, A.; Ryu, S.; Sahoo, H.; Saito, T.; Sakai, K.; Sakai, Y.; Sandilya, S.; Santel, D.; Santelj, L.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Semmler, D.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shibata, T. A.; Shiu, J. G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Sohn, Y. S.; Sokolov, A.; Solovieva, E.; Stanič, S.; Starič, M.; Steder, M.; Sumiyoshi, T.; Tamponi, U.; Tanida, K.; Tatishvili, G.; Teramoto, Y.; Trabelsi, K.; Tsuboyama, T.; Uchida, M.; Uehara, S.; Unno, Y.; Uno, S.; Urquijo, P.; Vanhoefer, P.; Varner, G.; Varvell, K. E.; Vorobyev, V.; Vossen, A.; Wagner, M. N.; Wang, C. H.; Wang, M. Z.; Wang, P.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yabsley, B. D.; Yamashita, Y.; Yashchenko, S.; Yook, Y.; Yuan, C. Z.; Zhang, Z. P.; Zhilich, V.; Zupanc, A.
In: Progress of Theoretical and Experimental Physics, Vol. 2014, No. 4, 43C01, 16.04.2014.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Measurement of branching fractions for B → J/ψηK decays and search for a narrow resonance in the J/ψη final state
AU - Iwashita, T.
AU - Miyabayashi, K.
AU - Bhardwaj, V.
AU - Adachi, I.
AU - Aihara, H.
AU - Asner, D. M.
AU - Aushev, T.
AU - Bakich, A. M.
AU - Bala, A.
AU - Bhuyan, B.
AU - Bonvicini, G.
AU - Bozek, A.
AU - Bračko, M.
AU - Browder, T. E.
AU - Chang, M. C.
AU - Chen, A.
AU - Cheon, B. G.
AU - Chilikin, K.
AU - Chistov, R.
AU - Cho, K.
AU - Chobanova, V.
AU - Choi, S. K.
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 - Esen, S.
AU - Farhat, H.
AU - Fast, J. E.
AU - Feindt, M.
AU - Ferber, T.
AU - Frey, A.
AU - Gaur, V.
AU - Gabyshev, N.
AU - Ganguly, S.
AU - Gillard, R.
AU - Goh, Y. M.
AU - Golob, B.
AU - Haba, J.
AU - Hara, T.
AU - Hayasaka, K.
AU - Hayashii, H.
AU - Higuchi, T.
AU - Horii, Y.
AU - Hoshi, Y.
AU - Hou, W. S.
AU - Hyun, H. J.
AU - Iijima, T.
AU - Ishikawa, Akimasa
AU - Itoh, R.
AU - Iwasaki, Y.
AU - Jaegle, I.
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, H. O.
AU - Kim, J. B.
AU - Kim, J. H.
AU - Kim, M. J.
AU - Kim, Y. J.
AU - Kinoshita, K.
AU - Klucar, J.
AU - Ko, B. R.
AU - Kodyšs, P.
AU - Korpar, S.
AU - Križan, P.
AU - Krokovny, P.
AU - Kuhr, T.
AU - Kumita, T.
AU - Kuzmin, A.
AU - Kwon, Y. J.
AU - Lange, J. S.
AU - Lee, S. H.
AU - Li, Y.
AU - Libby, J.
AU - Liu, C.
AU - Liu, Y.
AU - Lukin, P.
AU - Matvienko, D.
AU - Miyata, H.
AU - Mizuk, R.
AU - Moll, A.
AU - Mori, T.
AU - Nagasaka, Y.
AU - Nakano, E.
AU - Nakao, M.
AU - Nakazawa, H.
AU - Natkaniec, Z.
AU - Nayak, M.
AU - Ng, C.
AU - Nisar, N. K.
AU - Nishida, S.
AU - Nitoh, O.
AU - Ogawa, S.
AU - Okuno, S.
AU - Pakhlova, G.
AU - Panzenböck, E.
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 - Ryu, S.
AU - Sahoo, H.
AU - Saito, T.
AU - Sakai, K.
AU - Sakai, Y.
AU - Sandilya, S.
AU - Santel, D.
AU - Santelj, L.
AU - Sanuki, T.
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 - Shwartz, B.
AU - Sibidanov, A.
AU - Simon, F.
AU - Sohn, Y. S.
AU - Sokolov, A.
AU - Solovieva, E.
AU - Stanič, S.
AU - Starič, M.
AU - Steder, M.
AU - Sumiyoshi, T.
AU - Tamponi, U.
AU - Tanida, K.
AU - Tatishvili, G.
AU - Teramoto, Y.
AU - Trabelsi, K.
AU - Tsuboyama, T.
AU - Uchida, M.
AU - Uehara, S.
AU - Unno, Y.
AU - Uno, S.
AU - Urquijo, P.
AU - Vanhoefer, P.
AU - Varner, G.
AU - Varvell, K. E.
AU - Vorobyev, V.
AU - Vossen, A.
AU - Wagner, M. N.
AU - Wang, C. H.
AU - Wang, M. Z.
AU - Wang, P.
AU - Wang, X. L.
AU - Watanabe, M.
AU - Watanabe, Y.
AU - Williams, K. M.
AU - Won, E.
AU - Yabsley, B. D.
AU - Yamashita, Y.
AU - Yashchenko, S.
AU - Yook, Y.
AU - Yuan, C. Z.
AU - Zhang, Z. P.
AU - Zhilich, V.
AU - Zupanc, A.
N1 - Publisher Copyright: © The Author(s) 2014.
PY - 2014/4/16
Y1 - 2014/4/16
N2 - We report an observation of the B±→ J/ψηK± and B0 → J/ψηK0S decays using 772 × 106BB¯ pairs collected at the γ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the branching fractions B(B?→ J/ψηK±) = (1.27 ±0.11(stat.) ±0.11(syst.)) ×10-4 and B(B0 → J/ψηK0 S ) = (5.22 ±0.78(stat.) ± 0.49(syst.)) ×10-5. We search for a new narrow charmonium(-like) state X in the J/ψη mass spectrum and find no significant excess. We set upper limits on the product of branching fractions, B(B±→ X K± )B(X → J/ψη), at 3872MeVc-2 where aC-odd partner of X(3872) may exist, at ψ(4040) and ψ(4160) assuming their known mass and width, and over a range from 3.8 to 4.8 GeV c-2. The obtained upper limits at 90% confidence level for XC-odd(3872), ψ(4040), and ψ(4160) are 3.8 ×10-6, 15.5 ×10-6, and 7.4 ×10-6, respectively.
AB - We report an observation of the B±→ J/ψηK± and B0 → J/ψηK0S decays using 772 × 106BB¯ pairs collected at the γ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the branching fractions B(B?→ J/ψηK±) = (1.27 ±0.11(stat.) ±0.11(syst.)) ×10-4 and B(B0 → J/ψηK0 S ) = (5.22 ±0.78(stat.) ± 0.49(syst.)) ×10-5. We search for a new narrow charmonium(-like) state X in the J/ψη mass spectrum and find no significant excess. We set upper limits on the product of branching fractions, B(B±→ X K± )B(X → J/ψη), at 3872MeVc-2 where aC-odd partner of X(3872) may exist, at ψ(4040) and ψ(4160) assuming their known mass and width, and over a range from 3.8 to 4.8 GeV c-2. The obtained upper limits at 90% confidence level for XC-odd(3872), ψ(4040), and ψ(4160) are 3.8 ×10-6, 15.5 ×10-6, and 7.4 ×10-6, respectively.
UR - http://www.scopus.com/inward/record.url?scp=84924411993&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84924411993&partnerID=8YFLogxK
U2 - 10.1093/ptep/ptu043
DO - 10.1093/ptep/ptu043
M3 - Article
AN - SCOPUS:84924411993
VL - 2014
JO - Progress of Theoretical and Experimental Physics
JF - Progress of Theoretical and Experimental Physics
SN - 2050-3911
IS - 4
M1 - 43C01
ER -