Search for a low mass particle decaying into μ+μ - in B0→K*0X and B0→ρ0X at Belle

H. J. Hyun, H. K. Park, H. O. Kim, H. Park, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, E. Barberio, A. Bay, K. Belous, M. Bischofberger, A. Bondar, A. Bozek, M. Bračko, M. C. Chang, P. Chang, Y. Chao, A. Chen, P. Chen & 90 others B. G. Cheon, I. S. Cho, Y. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, N. Gabyshev, B. Golob, H. Ha, T. Hara, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, K. Inami, Y. Iwasaki, N. J. Joshi, D. H. Kah, J. H. Kang, P. Kapusta, T. Kawasaki, H. Kichimi, C. Kiesling, H. J. Kim, J. H. Kim, M. J. Kim, B. R. Ko, P. Kodyš, P. Križan, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, J. S. Lange, S. H. Lee, J. Li, D. Liventsev, R. Louvot, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, G. B. Mohanty, E. Nakano, H. Nakazawa, S. Nishida, K. Nishimura, O. Nitoh, T. Ohshima, S. Okuno, S. L. Olsen, H. Palka, C. W. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, S. Ryu, H. Sahoo, Y. Sakai, O. Schneider, M. E. Sevior, M. Shapkin, J. G. Shiu, B. Shwartz, J. B. Singh, S. Stanič, M. Starič, T. Sumiyoshi, S. Suzuki, Y. Teramoto, K. Trabelsi, S. Uehara, Y. Unno, S. Uno, G. Varner, K. E. Varvell, K. Vervink, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, R. Wedd, Eunil Won, B. D. Yabsley, Y. Yamashita, Z. P. Zhang, V. Zhilich, O. Zyukova

Research output: Contribution to journalArticle

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Abstract

We search for dimuon decays of a low mass particle in the decays B0→K*0X and B0→ρ0X using a data sample of 657×106BB̄ events collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find no evidence for such a particle in the mass range from 212MeV/c2 to 300MeV/c2 for lifetimes below 10-12s, and set upper limits on its branching fractions. In particular, we search for a particle with a mass of 214.3MeV/c2 reported by the HyperCP experiment, and obtain upper limits on the products B(B0→K *0X)×B(X→μ+μ-)<2. 26(2.27)×10-8 and B(B0→ρ0X) ×B(X→μ+μ-)<1.73(1.73)×10 -8 at 90% C.L. for a scalar (vector) X particle.

Original languageEnglish
Article number091801
JournalPhysical Review Letters
Volume105
Issue number9
DOIs
Publication statusPublished - 2010 Aug 25

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decay
scalars
life (durability)
detectors
products
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Hyun, H. J., Park, H. K., Kim, H. O., Park, H., Aihara, H., Arinstein, K., ... Zyukova, O. (2010). Search for a low mass particle decaying into μ+μ - in B0→K*0X and B0→ρ0X at Belle. Physical Review Letters, 105(9), [091801]. https://doi.org/10.1103/PhysRevLett.105.091801

Search for a low mass particle decaying into μ+μ - in B0→K*0X and B0→ρ0X at Belle. / Hyun, H. J.; Park, H. K.; Kim, H. O.; Park, H.; Aihara, H.; Arinstein, K.; Aushev, T.; Bakich, A. M.; Barberio, E.; Bay, A.; Belous, K.; Bischofberger, M.; Bondar, A.; Bozek, A.; Bračko, M.; Chang, M. C.; Chang, P.; Chao, Y.; Chen, A.; Chen, P.; Cheon, B. G.; Cho, I. S.; Choi, Y.; Dalseno, J.; Danilov, M.; Dash, M.; Drutskoy, A.; Eidelman, S.; Gabyshev, N.; Golob, B.; Ha, H.; Hara, T.; Horii, Y.; Hoshi, Y.; Hou, W. S.; Hsiung, Y. B.; Inami, K.; Iwasaki, Y.; Joshi, N. J.; Kah, D. H.; Kang, J. H.; Kapusta, P.; Kawasaki, T.; Kichimi, H.; Kiesling, C.; Kim, H. J.; Kim, J. H.; Kim, M. J.; Ko, B. R.; Kodyš, P.; Križan, P.; Kuzmin, A.; Kwon, Y. J.; Kyeong, S. H.; Lange, J. S.; Lee, S. H.; Li, J.; Liventsev, D.; Louvot, R.; Matyja, A.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mohanty, G. B.; Nakano, E.; Nakazawa, H.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Palka, H.; Park, C. W.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Ryu, S.; Sahoo, H.; Sakai, Y.; Schneider, O.; Sevior, M. E.; Shapkin, M.; Shiu, J. G.; Shwartz, B.; Singh, J. B.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Suzuki, S.; Teramoto, Y.; Trabelsi, K.; Uehara, S.; Unno, Y.; Uno, S.; Varner, G.; Varvell, K. E.; Vervink, K.; Wang, C. H.; Wang, M. Z.; Wang, P.; Wang, X. L.; Wedd, R.; Won, Eunil; Yabsley, B. D.; Yamashita, Y.; Zhang, Z. P.; Zhilich, V.; Zyukova, O.

In: Physical Review Letters, Vol. 105, No. 9, 091801, 25.08.2010.

Research output: Contribution to journalArticle

Hyun, HJ, Park, HK, Kim, HO, Park, H, Aihara, H, Arinstein, K, Aushev, T, Bakich, AM, Barberio, E, Bay, A, Belous, K, Bischofberger, M, Bondar, A, Bozek, A, Bračko, M, Chang, MC, Chang, P, Chao, Y, Chen, A, Chen, P, Cheon, BG, Cho, IS, Choi, Y, Dalseno, J, Danilov, M, Dash, M, Drutskoy, A, Eidelman, S, Gabyshev, N, Golob, B, Ha, H, Hara, T, Horii, Y, Hoshi, Y, Hou, WS, Hsiung, YB, Inami, K, Iwasaki, Y, Joshi, NJ, Kah, DH, Kang, JH, Kapusta, P, Kawasaki, T, Kichimi, H, Kiesling, C, Kim, HJ, Kim, JH, Kim, MJ, Ko, BR, Kodyš, P, Križan, P, Kuzmin, A, Kwon, YJ, Kyeong, SH, Lange, JS, Lee, SH, Li, J, Liventsev, D, Louvot, R, Matyja, A, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mohanty, GB, Nakano, E, Nakazawa, H, Nishida, S, Nishimura, K, Nitoh, O, Ohshima, T, Okuno, S, Olsen, SL, Palka, H, Park, CW, Pestotnik, R, Petrič, M, Piilonen, LE, Ryu, S, Sahoo, H, Sakai, Y, Schneider, O, Sevior, ME, Shapkin, M, Shiu, JG, Shwartz, B, Singh, JB, Stanič, S, Starič, M, Sumiyoshi, T, Suzuki, S, Teramoto, Y, Trabelsi, K, Uehara, S, Unno, Y, Uno, S, Varner, G, Varvell, KE, Vervink, K, Wang, CH, Wang, MZ, Wang, P, Wang, XL, Wedd, R, Won, E, Yabsley, BD, Yamashita, Y, Zhang, ZP, Zhilich, V & Zyukova, O 2010, 'Search for a low mass particle decaying into μ+μ - in B0→K*0X and B0→ρ0X at Belle', Physical Review Letters, vol. 105, no. 9, 091801. https://doi.org/10.1103/PhysRevLett.105.091801
Hyun, H. J. ; Park, H. K. ; Kim, H. O. ; Park, H. ; Aihara, H. ; Arinstein, K. ; Aushev, T. ; Bakich, A. M. ; Barberio, E. ; Bay, A. ; Belous, K. ; Bischofberger, M. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Chang, M. C. ; Chang, P. ; Chao, Y. ; Chen, A. ; Chen, P. ; Cheon, B. G. ; Cho, I. S. ; Choi, Y. ; Dalseno, J. ; Danilov, M. ; Dash, M. ; Drutskoy, A. ; Eidelman, S. ; Gabyshev, N. ; Golob, B. ; Ha, H. ; Hara, T. ; Horii, Y. ; Hoshi, Y. ; Hou, W. S. ; Hsiung, Y. B. ; Inami, K. ; Iwasaki, Y. ; Joshi, N. J. ; Kah, D. H. ; Kang, J. H. ; Kapusta, P. ; Kawasaki, T. ; Kichimi, H. ; Kiesling, C. ; Kim, H. J. ; Kim, J. H. ; Kim, M. J. ; Ko, B. R. ; Kodyš, P. ; Križan, P. ; Kuzmin, A. ; Kwon, Y. J. ; Kyeong, S. H. ; Lange, J. S. ; Lee, S. H. ; Li, J. ; Liventsev, D. ; Louvot, R. ; Matyja, A. ; McOnie, S. ; Miyabayashi, K. ; Miyata, H. ; Miyazaki, Y. ; Mohanty, G. B. ; Nakano, E. ; Nakazawa, H. ; Nishida, S. ; Nishimura, K. ; Nitoh, O. ; Ohshima, T. ; Okuno, S. ; Olsen, S. L. ; Palka, H. ; Park, C. W. ; Pestotnik, R. ; Petrič, M. ; Piilonen, L. E. ; Ryu, S. ; Sahoo, H. ; Sakai, Y. ; Schneider, O. ; Sevior, M. E. ; Shapkin, M. ; Shiu, J. G. ; Shwartz, B. ; Singh, J. B. ; Stanič, S. ; Starič, M. ; Sumiyoshi, T. ; Suzuki, S. ; Teramoto, Y. ; Trabelsi, K. ; Uehara, S. ; Unno, Y. ; Uno, S. ; Varner, G. ; Varvell, K. E. ; Vervink, K. ; Wang, C. H. ; Wang, M. Z. ; Wang, P. ; Wang, X. L. ; Wedd, R. ; Won, Eunil ; Yabsley, B. D. ; Yamashita, Y. ; Zhang, Z. P. ; Zhilich, V. ; Zyukova, O. / Search for a low mass particle decaying into μ+μ - in B0→K*0X and B0→ρ0X at Belle. In: Physical Review Letters. 2010 ; Vol. 105, No. 9.
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title = "Search for a low mass particle decaying into μ+μ - in B0→K*0X and B0→ρ0X at Belle",
abstract = "We search for dimuon decays of a low mass particle in the decays B0→K*0X and B0→ρ0X using a data sample of 657×106BB̄ events collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find no evidence for such a particle in the mass range from 212MeV/c2 to 300MeV/c2 for lifetimes below 10-12s, and set upper limits on its branching fractions. In particular, we search for a particle with a mass of 214.3MeV/c2 reported by the HyperCP experiment, and obtain upper limits on the products B(B0→K *0X)×B(X→μ+μ-)<2. 26(2.27)×10-8 and B(B0→ρ0X) ×B(X→μ+μ-)<1.73(1.73)×10 -8 at 90{\%} C.L. for a scalar (vector) X particle.",
author = "Hyun, {H. J.} and Park, {H. K.} and Kim, {H. O.} and H. Park and H. Aihara and K. Arinstein and T. Aushev and Bakich, {A. M.} and E. Barberio and A. Bay and K. Belous and M. Bischofberger and A. Bondar and A. Bozek and M. Bračko and Chang, {M. C.} and P. Chang and Y. Chao and A. Chen and P. Chen and Cheon, {B. G.} and Cho, {I. S.} and Y. Choi and J. Dalseno and M. Danilov and M. Dash and A. Drutskoy and S. Eidelman and N. Gabyshev and B. Golob and H. Ha and T. Hara and Y. Horii and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and K. Inami and Y. Iwasaki and Joshi, {N. J.} and Kah, {D. H.} and Kang, {J. H.} and P. Kapusta and T. Kawasaki and H. Kichimi and C. Kiesling and Kim, {H. J.} and Kim, {J. H.} and Kim, {M. J.} and Ko, {B. R.} and P. Kodyš and P. Križan and A. Kuzmin and Kwon, {Y. J.} and Kyeong, {S. H.} and Lange, {J. S.} and Lee, {S. H.} and J. Li and D. Liventsev and R. Louvot and A. Matyja and S. McOnie and K. Miyabayashi and H. Miyata and Y. Miyazaki and Mohanty, {G. B.} and E. Nakano and H. Nakazawa and S. Nishida and K. Nishimura and O. Nitoh and T. Ohshima and S. Okuno and Olsen, {S. L.} and H. Palka and Park, {C. W.} and R. Pestotnik and M. Petrič and Piilonen, {L. E.} and S. Ryu and H. Sahoo and Y. Sakai and O. Schneider and Sevior, {M. E.} and M. Shapkin and Shiu, {J. G.} and B. Shwartz and Singh, {J. B.} and S. Stanič and M. Starič and T. Sumiyoshi and S. Suzuki and Y. Teramoto and K. Trabelsi and S. Uehara and Y. Unno and S. Uno and G. Varner and Varvell, {K. E.} and K. Vervink and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Wang, {X. L.} and R. Wedd and Eunil Won and Yabsley, {B. D.} and Y. Yamashita and Zhang, {Z. P.} and V. Zhilich and O. Zyukova",
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TY - JOUR

T1 - Search for a low mass particle decaying into μ+μ - in B0→K*0X and B0→ρ0X at Belle

AU - Hyun, H. J.

AU - Park, H. K.

AU - Kim, H. O.

AU - Park, H.

AU - Aihara, H.

AU - Arinstein, K.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Barberio, E.

AU - Bay, A.

AU - Belous, K.

AU - Bischofberger, M.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Chang, M. C.

AU - Chang, P.

AU - Chao, Y.

AU - Chen, A.

AU - Chen, P.

AU - Cheon, B. G.

AU - Cho, I. S.

AU - Choi, Y.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, M.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Gabyshev, N.

AU - Golob, B.

AU - Ha, H.

AU - Hara, T.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Inami, K.

AU - Iwasaki, Y.

AU - Joshi, N. J.

AU - Kah, D. H.

AU - Kang, J. H.

AU - Kapusta, P.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kiesling, C.

AU - Kim, H. J.

AU - Kim, J. H.

AU - Kim, M. J.

AU - Ko, B. R.

AU - Kodyš, P.

AU - Križan, P.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Kyeong, S. H.

AU - Lange, J. S.

AU - Lee, S. H.

AU - Li, J.

AU - Liventsev, D.

AU - Louvot, R.

AU - Matyja, A.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mohanty, G. B.

AU - Nakano, E.

AU - Nakazawa, H.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Palka, H.

AU - Park, C. W.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Ryu, S.

AU - Sahoo, H.

AU - Sakai, Y.

AU - Schneider, O.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Singh, J. B.

AU - Stanič, S.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Suzuki, S.

AU - Teramoto, Y.

AU - Trabelsi, K.

AU - Uehara, S.

AU - Unno, Y.

AU - Uno, S.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vervink, K.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Wang, X. L.

AU - Wedd, R.

AU - Won, Eunil

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zyukova, O.

PY - 2010/8/25

Y1 - 2010/8/25

N2 - We search for dimuon decays of a low mass particle in the decays B0→K*0X and B0→ρ0X using a data sample of 657×106BB̄ events collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find no evidence for such a particle in the mass range from 212MeV/c2 to 300MeV/c2 for lifetimes below 10-12s, and set upper limits on its branching fractions. In particular, we search for a particle with a mass of 214.3MeV/c2 reported by the HyperCP experiment, and obtain upper limits on the products B(B0→K *0X)×B(X→μ+μ-)<2. 26(2.27)×10-8 and B(B0→ρ0X) ×B(X→μ+μ-)<1.73(1.73)×10 -8 at 90% C.L. for a scalar (vector) X particle.

AB - We search for dimuon decays of a low mass particle in the decays B0→K*0X and B0→ρ0X using a data sample of 657×106BB̄ events collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find no evidence for such a particle in the mass range from 212MeV/c2 to 300MeV/c2 for lifetimes below 10-12s, and set upper limits on its branching fractions. In particular, we search for a particle with a mass of 214.3MeV/c2 reported by the HyperCP experiment, and obtain upper limits on the products B(B0→K *0X)×B(X→μ+μ-)<2. 26(2.27)×10-8 and B(B0→ρ0X) ×B(X→μ+μ-)<1.73(1.73)×10 -8 at 90% C.L. for a scalar (vector) X particle.

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U2 - 10.1103/PhysRevLett.105.091801

DO - 10.1103/PhysRevLett.105.091801

M3 - Article

VL - 105

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 9

M1 - 091801

ER -