Study of J/ψ→pp̄,ΛΛ̄ and observation of ηc→ΛΛ̄ at Belle

C. H. Wu, M. Z. Wang, K. Abe, I. Adachi, H. Aihara, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, A. Bay, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, T. E. Browder, Y. Chao, A. Chen & 123 others W. T. Chen, B. G. Cheon, Y. Choi, Y. K. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, S. Eidelman, N. Gabyshev, T. Gershon, A. Go, G. Gokhroo, A. Gorišek, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, S. Hou, W. S. Hou, Y. B. Hsiung, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, H. O. Kim, Y. J. Kim, P. Križan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y. J. Kwon, G. Leder, J. Lee, Y. J. Lee, T. Lesiak, S. W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, H. Palka, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, T. Schietinger, O. Schneider, A. J. Schwartz, R. Seidl, M. E. Sevior, M. Shapkin, H. Shibuya, V. Sidorov, A. Sokolov, A. Somov, N. Soni, S. Stanič, M. Starič, H. Stoeck, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, S. Uno, P. Urquijo, Y. Usov, G. Varner, C. C. Wang, C. H. Wang, Y. Watanabe, Eunil Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, L. M. Zhang, Z. P. Zhang

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We study the baryonic charmonium decays of B mesons B+→ηcK+ and B+→J/ψK+, where the ηc and J/ψ subsequently decay into a pp̄ or ΛΛ̄ pair. We measure the J/ψ→pp̄ and ΛΛ̄ anisotropy parameters αB=-0.60±0. 13±0.14 (pp̄), -0.44±0.51±0.31 (ΛΛ̄ ) and compare to results from e+e-→J/ψ formation experiments. We also report the first observation of ηc→ΛΛ̄. The measured branching fraction is B(ηc→ΛΛ̄)=(0.87-0.21+0. 24(stat)-0.14+0.09(syst)±0.27(PDG))×10-3. This study is based on a 357fb-1 data sample recorded on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

Original languageEnglish
Article number162003
JournalPhysical Review Letters
Volume97
Issue number16
DOIs
Publication statusPublished - 2006 Oct 30

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decay
mesons
anisotropy
detectors
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Wu, C. H., Wang, M. Z., Abe, K., Adachi, I., Aihara, H., Aulchenko, V., ... Zhang, Z. P. (2006). Study of J/ψ→pp̄,ΛΛ̄ and observation of ηc→ΛΛ̄ at Belle. Physical Review Letters, 97(16), [162003]. https://doi.org/10.1103/PhysRevLett.97.162003

Study of J/ψ→pp̄,ΛΛ̄ and observation of ηc→ΛΛ̄ at Belle. / Wu, C. H.; Wang, M. Z.; Abe, K.; Adachi, I.; Aihara, H.; Aulchenko, V.; Aushev, T.; Bahinipati, S.; Bakich, A. M.; Balagura, V.; Bay, A.; Belous, K.; Bitenc, U.; Bizjak, I.; Blyth, S.; Bondar, A.; Bozek, A.; Browder, T. E.; Chao, Y.; Chen, A.; Chen, W. T.; Cheon, B. G.; Choi, Y.; Choi, Y. K.; Chuvikov, A.; Cole, S.; Dalseno, J.; Danilov, M.; Dash, M.; Eidelman, S.; Gabyshev, N.; Gershon, T.; Go, A.; Gokhroo, G.; Gorišek, A.; Ha, H.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Heffernan, D.; Hokuue, T.; Hou, S.; Hou, W. S.; Hsiung, Y. B.; Iijima, T.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kang, J. H.; Kataoka, S. U.; Katayama, N.; Kawai, H.; Kawasaki, T.; Khan, H. R.; Kichimi, H.; Kim, H. J.; Kim, H. O.; Kim, Y. J.; Križan, P.; Krokovny, P.; Kulasiri, R.; Kumar, R.; Kuo, C. C.; Kuzmin, A.; Kwon, Y. J.; Leder, G.; Lee, J.; Lee, Y. J.; Lesiak, T.; Lin, S. W.; Liventsev, D.; Majumder, G.; Mandl, F.; Matsumoto, T.; Matyja, A.; McOnie, S.; Mitaroff, W.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Mori, T.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okabe, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Ozaki, H.; Pakhlov, P.; Palka, H.; Park, H.; Park, K. S.; Pestotnik, R.; Piilonen, L. E.; Sakai, Y.; Schietinger, T.; Schneider, O.; Schwartz, A. J.; Seidl, R.; Sevior, M. E.; Shapkin, M.; Shibuya, H.; Sidorov, V.; Sokolov, A.; Somov, A.; Soni, N.; Stanič, S.; Starič, M.; Stoeck, H.; Sumiyoshi, T.; Takasaki, F.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tian, X. C.; Tsuboyama, T.; Tsukamoto, T.; Uehara, S.; Uglov, T.; Ueno, K.; Uno, S.; Urquijo, P.; Usov, Y.; Varner, G.; Wang, C. C.; Wang, C. H.; Watanabe, Y.; Won, Eunil; Yabsley, B. D.; Yamaguchi, A.; Yamashita, Y.; Zhang, L. M.; Zhang, Z. P.

In: Physical Review Letters, Vol. 97, No. 16, 162003, 30.10.2006.

Research output: Contribution to journalArticle

Wu, CH, Wang, MZ, Abe, K, Adachi, I, Aihara, H, Aulchenko, V, Aushev, T, Bahinipati, S, Bakich, AM, Balagura, V, Bay, A, Belous, K, Bitenc, U, Bizjak, I, Blyth, S, Bondar, A, Bozek, A, Browder, TE, Chao, Y, Chen, A, Chen, WT, Cheon, BG, Choi, Y, Choi, YK, Chuvikov, A, Cole, S, Dalseno, J, Danilov, M, Dash, M, Eidelman, S, Gabyshev, N, Gershon, T, Go, A, Gokhroo, G, Gorišek, A, Ha, H, Haba, J, Hayasaka, K, Hayashii, H, Hazumi, M, Heffernan, D, Hokuue, T, Hou, S, Hou, WS, Hsiung, YB, Iijima, T, Inami, K, Ishikawa, A, Itoh, R, Iwasaki, M, Iwasaki, Y, Kang, JH, Kataoka, SU, Katayama, N, Kawai, H, Kawasaki, T, Khan, HR, Kichimi, H, Kim, HJ, Kim, HO, Kim, YJ, Križan, P, Krokovny, P, Kulasiri, R, Kumar, R, Kuo, CC, Kuzmin, A, Kwon, YJ, Leder, G, Lee, J, Lee, YJ, Lesiak, T, Lin, SW, Liventsev, D, Majumder, G, Mandl, F, Matsumoto, T, Matyja, A, McOnie, S, Mitaroff, W, Miyabayashi, K, Miyake, H, Miyata, H, Miyazaki, Y, Mizuk, R, Mori, T, Nakano, E, Nakao, M, Natkaniec, Z, Nishida, S, Nitoh, O, Ogawa, S, Ohshima, T, Okabe, T, Okuno, S, Olsen, SL, Onuki, Y, Ozaki, H, Pakhlov, P, Palka, H, Park, H, Park, KS, Pestotnik, R, Piilonen, LE, Sakai, Y, Schietinger, T, Schneider, O, Schwartz, AJ, Seidl, R, Sevior, ME, Shapkin, M, Shibuya, H, Sidorov, V, Sokolov, A, Somov, A, Soni, N, Stanič, S, Starič, M, Stoeck, H, Sumiyoshi, T, Takasaki, F, Tanaka, M, Taylor, GN, Teramoto, Y, Tian, XC, Tsuboyama, T, Tsukamoto, T, Uehara, S, Uglov, T, Ueno, K, Uno, S, Urquijo, P, Usov, Y, Varner, G, Wang, CC, Wang, CH, Watanabe, Y, Won, E, Yabsley, BD, Yamaguchi, A, Yamashita, Y, Zhang, LM & Zhang, ZP 2006, 'Study of J/ψ→pp̄,ΛΛ̄ and observation of ηc→ΛΛ̄ at Belle', Physical Review Letters, vol. 97, no. 16, 162003. https://doi.org/10.1103/PhysRevLett.97.162003
Wu CH, Wang MZ, Abe K, Adachi I, Aihara H, Aulchenko V et al. Study of J/ψ→pp̄,ΛΛ̄ and observation of ηc→ΛΛ̄ at Belle. Physical Review Letters. 2006 Oct 30;97(16). 162003. https://doi.org/10.1103/PhysRevLett.97.162003
Wu, C. H. ; Wang, M. Z. ; Abe, K. ; Adachi, I. ; Aihara, H. ; Aulchenko, V. ; Aushev, T. ; Bahinipati, S. ; Bakich, A. M. ; Balagura, V. ; Bay, A. ; Belous, K. ; Bitenc, U. ; Bizjak, I. ; Blyth, S. ; Bondar, A. ; Bozek, A. ; Browder, T. E. ; Chao, Y. ; Chen, A. ; Chen, W. T. ; Cheon, B. G. ; Choi, Y. ; Choi, Y. K. ; Chuvikov, A. ; Cole, S. ; Dalseno, J. ; Danilov, M. ; Dash, M. ; Eidelman, S. ; Gabyshev, N. ; Gershon, T. ; Go, A. ; Gokhroo, G. ; Gorišek, A. ; Ha, H. ; Haba, J. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Heffernan, D. ; Hokuue, T. ; Hou, S. ; Hou, W. S. ; Hsiung, Y. B. ; Iijima, T. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Kang, J. H. ; Kataoka, S. U. ; Katayama, N. ; Kawai, H. ; Kawasaki, T. ; Khan, H. R. ; Kichimi, H. ; Kim, H. J. ; Kim, H. O. ; Kim, Y. J. ; Križan, P. ; Krokovny, P. ; Kulasiri, R. ; Kumar, R. ; Kuo, C. C. ; Kuzmin, A. ; Kwon, Y. J. ; Leder, G. ; Lee, J. ; Lee, Y. J. ; Lesiak, T. ; Lin, S. W. ; Liventsev, D. ; Majumder, G. ; Mandl, F. ; Matsumoto, T. ; Matyja, A. ; McOnie, S. ; Mitaroff, W. ; Miyabayashi, K. ; Miyake, H. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Mori, T. ; Nakano, E. ; Nakao, M. ; Natkaniec, Z. ; Nishida, S. ; Nitoh, O. ; Ogawa, S. ; Ohshima, T. ; Okabe, T. ; Okuno, S. ; Olsen, S. L. ; Onuki, Y. ; Ozaki, H. ; Pakhlov, P. ; Palka, H. ; Park, H. ; Park, K. S. ; Pestotnik, R. ; Piilonen, L. E. ; Sakai, Y. ; Schietinger, T. ; Schneider, O. ; Schwartz, A. J. ; Seidl, R. ; Sevior, M. E. ; Shapkin, M. ; Shibuya, H. ; Sidorov, V. ; Sokolov, A. ; Somov, A. ; Soni, N. ; Stanič, S. ; Starič, M. ; Stoeck, H. ; Sumiyoshi, T. ; Takasaki, F. ; Tanaka, M. ; Taylor, G. N. ; Teramoto, Y. ; Tian, X. C. ; Tsuboyama, T. ; Tsukamoto, T. ; Uehara, S. ; Uglov, T. ; Ueno, K. ; Uno, S. ; Urquijo, P. ; Usov, Y. ; Varner, G. ; Wang, C. C. ; Wang, C. H. ; Watanabe, Y. ; Won, Eunil ; Yabsley, B. D. ; Yamaguchi, A. ; Yamashita, Y. ; Zhang, L. M. ; Zhang, Z. P. / Study of J/ψ→pp̄,ΛΛ̄ and observation of ηc→ΛΛ̄ at Belle. In: Physical Review Letters. 2006 ; Vol. 97, No. 16.
@article{77ece32a5b7a45a5a26c6b92f46781eb,
title = "Study of J/ψ→pp̄,ΛΛ̄ and observation of ηc→ΛΛ̄ at Belle",
abstract = "We study the baryonic charmonium decays of B mesons B+→ηcK+ and B+→J/ψK+, where the ηc and J/ψ subsequently decay into a pp̄ or ΛΛ̄ pair. We measure the J/ψ→pp̄ and ΛΛ̄ anisotropy parameters αB=-0.60±0. 13±0.14 (pp̄), -0.44±0.51±0.31 (ΛΛ̄ ) and compare to results from e+e-→J/ψ formation experiments. We also report the first observation of ηc→ΛΛ̄. The measured branching fraction is B(ηc→ΛΛ̄)=(0.87-0.21+0. 24(stat)-0.14+0.09(syst)±0.27(PDG))×10-3. This study is based on a 357fb-1 data sample recorded on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.",
author = "Wu, {C. H.} and Wang, {M. Z.} and K. Abe and I. Adachi and H. Aihara and V. Aulchenko and T. Aushev and S. Bahinipati and Bakich, {A. M.} and V. Balagura and A. Bay and K. Belous and U. Bitenc and I. Bizjak and S. Blyth and A. Bondar and A. Bozek and Browder, {T. E.} and Y. Chao and A. Chen and Chen, {W. T.} and Cheon, {B. G.} and Y. Choi and Choi, {Y. K.} and A. Chuvikov and S. Cole and J. Dalseno and M. Danilov and M. Dash and S. Eidelman and N. Gabyshev and T. Gershon and A. Go and G. Gokhroo and A. Gorišek and H. Ha and J. Haba and K. Hayasaka and H. Hayashii and M. Hazumi and D. Heffernan and T. Hokuue and S. Hou and Hou, {W. S.} and Hsiung, {Y. B.} and T. Iijima and K. Inami and A. Ishikawa and R. Itoh and M. Iwasaki and Y. Iwasaki and Kang, {J. H.} and Kataoka, {S. U.} and N. Katayama and H. Kawai and T. Kawasaki and Khan, {H. R.} and H. Kichimi and Kim, {H. J.} and Kim, {H. O.} and Kim, {Y. J.} and P. Križan and P. Krokovny and R. Kulasiri and R. Kumar and Kuo, {C. C.} and A. Kuzmin and Kwon, {Y. J.} and G. Leder and J. Lee and Lee, {Y. J.} and T. Lesiak and Lin, {S. W.} and D. Liventsev and G. Majumder and F. Mandl and T. Matsumoto and A. Matyja and S. McOnie and W. Mitaroff and K. Miyabayashi and H. Miyake and H. Miyata and Y. Miyazaki and R. Mizuk and T. Mori and E. Nakano and M. Nakao and Z. Natkaniec and S. Nishida and O. Nitoh and S. Ogawa and T. Ohshima and T. Okabe and S. Okuno and Olsen, {S. L.} and Y. Onuki and H. Ozaki and P. Pakhlov and H. Palka and H. Park and Park, {K. S.} and R. Pestotnik and Piilonen, {L. E.} and Y. Sakai and T. Schietinger and O. Schneider and Schwartz, {A. J.} and R. Seidl and Sevior, {M. E.} and M. Shapkin and H. Shibuya and V. Sidorov and A. Sokolov and A. Somov and N. Soni and S. Stanič and M. Starič and H. Stoeck and T. Sumiyoshi and F. Takasaki and M. Tanaka and Taylor, {G. N.} and Y. Teramoto and Tian, {X. C.} and T. Tsuboyama and T. Tsukamoto and S. Uehara and T. Uglov and K. Ueno and S. Uno and P. Urquijo and Y. Usov and G. Varner and Wang, {C. C.} and Wang, {C. H.} and Y. Watanabe and Eunil Won and Yabsley, {B. D.} and A. Yamaguchi and Y. Yamashita and Zhang, {L. M.} and Zhang, {Z. P.}",
year = "2006",
month = "10",
day = "30",
doi = "10.1103/PhysRevLett.97.162003",
language = "English",
volume = "97",
journal = "Physical Review Letters",
issn = "0031-9007",
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TY - JOUR

T1 - Study of J/ψ→pp̄,ΛΛ̄ and observation of ηc→ΛΛ̄ at Belle

AU - Wu, C. H.

AU - Wang, M. Z.

AU - Abe, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Bay, A.

AU - Belous, K.

AU - Bitenc, U.

AU - Bizjak, I.

AU - Blyth, S.

AU - Bondar, A.

AU - Bozek, A.

AU - Browder, T. E.

AU - Chao, Y.

AU - Chen, A.

AU - Chen, W. T.

AU - Cheon, B. G.

AU - Choi, Y.

AU - Choi, Y. K.

AU - Chuvikov, A.

AU - Cole, S.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, M.

AU - Eidelman, S.

AU - Gabyshev, N.

AU - Gershon, T.

AU - Go, A.

AU - Gokhroo, G.

AU - Gorišek, A.

AU - Ha, H.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Heffernan, D.

AU - Hokuue, T.

AU - Hou, S.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Kang, J. H.

AU - Kataoka, S. U.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Khan, H. R.

AU - Kichimi, H.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, Y. J.

AU - Križan, P.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kumar, R.

AU - Kuo, C. C.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Leder, G.

AU - Lee, J.

AU - Lee, Y. J.

AU - Lesiak, T.

AU - Lin, S. W.

AU - Liventsev, D.

AU - Majumder, G.

AU - Mandl, F.

AU - Matsumoto, T.

AU - Matyja, A.

AU - McOnie, S.

AU - Mitaroff, W.

AU - Miyabayashi, K.

AU - Miyake, H.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Mori, T.

AU - Nakano, E.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okabe, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Onuki, Y.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Palka, H.

AU - Park, H.

AU - Park, K. S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Sakai, Y.

AU - Schietinger, T.

AU - Schneider, O.

AU - Schwartz, A. J.

AU - Seidl, R.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shibuya, H.

AU - Sidorov, V.

AU - Sokolov, A.

AU - Somov, A.

AU - Soni, N.

AU - Stanič, S.

AU - Starič, M.

AU - Stoeck, H.

AU - Sumiyoshi, T.

AU - Takasaki, F.

AU - Tanaka, M.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tian, X. C.

AU - Tsuboyama, T.

AU - Tsukamoto, T.

AU - Uehara, S.

AU - Uglov, T.

AU - Ueno, K.

AU - Uno, S.

AU - Urquijo, P.

AU - Usov, Y.

AU - Varner, G.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Watanabe, Y.

AU - Won, Eunil

AU - Yabsley, B. D.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Zhang, L. M.

AU - Zhang, Z. P.

PY - 2006/10/30

Y1 - 2006/10/30

N2 - We study the baryonic charmonium decays of B mesons B+→ηcK+ and B+→J/ψK+, where the ηc and J/ψ subsequently decay into a pp̄ or ΛΛ̄ pair. We measure the J/ψ→pp̄ and ΛΛ̄ anisotropy parameters αB=-0.60±0. 13±0.14 (pp̄), -0.44±0.51±0.31 (ΛΛ̄ ) and compare to results from e+e-→J/ψ formation experiments. We also report the first observation of ηc→ΛΛ̄. The measured branching fraction is B(ηc→ΛΛ̄)=(0.87-0.21+0. 24(stat)-0.14+0.09(syst)±0.27(PDG))×10-3. This study is based on a 357fb-1 data sample recorded on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

AB - We study the baryonic charmonium decays of B mesons B+→ηcK+ and B+→J/ψK+, where the ηc and J/ψ subsequently decay into a pp̄ or ΛΛ̄ pair. We measure the J/ψ→pp̄ and ΛΛ̄ anisotropy parameters αB=-0.60±0. 13±0.14 (pp̄), -0.44±0.51±0.31 (ΛΛ̄ ) and compare to results from e+e-→J/ψ formation experiments. We also report the first observation of ηc→ΛΛ̄. The measured branching fraction is B(ηc→ΛΛ̄)=(0.87-0.21+0. 24(stat)-0.14+0.09(syst)±0.27(PDG))×10-3. This study is based on a 357fb-1 data sample recorded on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

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UR - http://www.scopus.com/inward/citedby.url?scp=33750273577&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.97.162003

DO - 10.1103/PhysRevLett.97.162003

M3 - Article

VL - 97

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 16

M1 - 162003

ER -