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Search for an H-dibaryon with a mass near 2mΛ in Υ(1S) and Υ(2S) decays.

Publication ,  Journal Article
Kim, BH; Olsen, SL; Adachi, I; Aihara, H; Asner, DM; Aulchenko, V; Bay, A; Belous, K; Bhuyan, B; Bonvicini, G; Bozek, A; Bračko, M; Chen, A ...
Published in: Physical review letters
May 2013

We report the results of a high-statistics search for H dibaryon production in inclusive Υ(1S) and Υ(2S) decays. No indication of an H dibaryon with a mass near the M(H)=2m(Λ) threshold is seen in either the H→Λpπ(-) or ΛΛ decay channels and 90% confidence level branching-fraction upper limits are set that are between one and two orders of magnitude below the measured branching fractions for inclusive Υ(1S) and Υ(2S) decays to antideuterons. Since Υ(1S,2S) decays produce flavor-SU(3)-symmetric final states, these results put stringent constraints on H dibaryon properties. The results are based on analyses of 102 million Υ(1S) and 158 million Υ(2S) events collected with the Belle detector at the KEKB e(+)e(-) collider.

Duke Scholars

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

May 2013

Volume

110

Issue

22

Start / End Page

222002

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Kim, B. H., Olsen, S. L., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., … Belle Collaboration. (2013). Search for an H-dibaryon with a mass near 2mΛ in Υ(1S) and Υ(2S) decays. Physical Review Letters, 110(22), 222002. https://doi.org/10.1103/physrevlett.110.222002
Kim, B. H., S. L. Olsen, I. Adachi, H. Aihara, D. M. Asner, V. Aulchenko, A. Bay, et al. “Search for an H-dibaryon with a mass near 2mΛ in Υ(1S) and Υ(2S) decays.Physical Review Letters 110, no. 22 (May 2013): 222002. https://doi.org/10.1103/physrevlett.110.222002.
Kim BH, Olsen SL, Adachi I, Aihara H, Asner DM, Aulchenko V, et al. Search for an H-dibaryon with a mass near 2mΛ in Υ(1S) and Υ(2S) decays. Physical review letters. 2013 May;110(22):222002.
Kim, B. H., et al. “Search for an H-dibaryon with a mass near 2mΛ in Υ(1S) and Υ(2S) decays.Physical Review Letters, vol. 110, no. 22, May 2013, p. 222002. Epmc, doi:10.1103/physrevlett.110.222002.
Kim BH, Olsen SL, Adachi I, Aihara H, Asner DM, Aulchenko V, Bay A, Belous K, Bhuyan B, Bonvicini G, Bozek A, Bračko M, Browder TE, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Cho I-S, Cho K, Chobanova V, Choi S-K, Choi Y, Cinabro D, Dalseno J, Doležal Z, Eidelman S, Epifanov D, Esen S, Farhat H, Fast JE, Gaur V, Ganguly S, Gillard R, Goh YM, Hayasaka K, Hayashii H, Hoshi Y, Hou W-S, Hsiung YB, Hyun HJ, Inami K, Ishikawa A, Itoh R, Iwasaki Y, Julius T, Kah DH, Kang JH, Kapusta P, Kato E, Kichimi H, Kim HJ, Kim HO, Kim JH, Kim KT, Kim MJ, Kim SK, Kim YJ, Kinoshita K, Klucar J, Ko BR, Kodyš P, Korpar S, Kouzes RT, Križan P, Krokovny P, Kumita T, Kuzmin A, Kwon Y-J, Lange JS, Lee S-H, Li J, Li X, Li Y, Libby J, Liventsev D, Matvienko D, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moll A, Muramatsu N, Mussa R, Nakano E, Nakao M, Nedelkovska E, Ng C, Nisar NK, Nishida S, Nishimura K, Ohshima T, Okuno S, Pakhlov P, Pakhlova G, Park H, Park HK, Peters M, Petrič M, Piilonen LE, Ritter M, Ryu S, Sahoo H, Sakai Y, Sandilya S, Sanuki T, Savinov V, Schneider O, Schnell G, Schwanda C, Schwartz AJ, Semmler D, Senyo K, Seon O, Sevior ME, Shapkin M, Shebalin V, Shen CP, Shibata T-A, Shiu J-G, Shwartz B, Simon F, Smerkol P, Sohn Y-S, Sokolov A, Solovieva E, Stanič S, Starič M, Sumihama M, Sumiyoshi T, Tamponi U, Tanida K, Tatishvili G, Teramoto Y, Trabelsi K, Uchida M, Uehara S, Uglov T, Unno Y, Uno S, Usov Y, Van Hulse C, Varner G, Vorobyev V, Wagner MN, Wang CH, Wang P, Watanabe Y, Williams KM, Won E, Yamashita Y, Zhilich V, Zupanc A, Belle Collaboration. Search for an H-dibaryon with a mass near 2mΛ in Υ(1S) and Υ(2S) decays. Physical review letters. 2013 May;110(22):222002.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

May 2013

Volume

110

Issue

22

Start / End Page

222002

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences