Evidence for B-→τ-ν̄τ with a semileptonic tagging method

K. Hara, T. Iijima, H. Aihara, V. Aulchenko, T. Aushev, T. Aziz, A. M. Bakich, E. Barberio, K. Belous, M. Bischofberger, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, P. Chang, Y. Chao, A. Chen, B. G. Cheon, C. C. Chiang, I. S. Cho & 124 others Y. Choi, J. Dalseno, M. Danilov, Z. Doležal, W. Dungel, S. Eidelman, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, Y. Hasegawa, K. Hayasaka, H. Hayashii, Y. Horii, Y. Hoshi, Y. B. Hsiung, H. J. Hyun, K. Inami, M. Iwabuchi, Y. Iwasaki, T. Julius, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, C. Kiesling, H. J. Kim, H. O. Kim, J. H. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, P. Kodyž, S. Korpar, M. Kreps, P. Križan, P. Krokovny, T. Kuhr, T. Kumita, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, M. J. Lee, S. H. Lee, J. Li, A. Limosani, Y. Liu, D. Liventsev, R. Louvot, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, G. B. Mohanty, T. Mori, E. Nakano, M. Nakao, H. Nakazawa, S. Neubauer, S. Nishida, K. Nishimura, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, G. Pakhlova, C. W. Park, H. K. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Prim, M. Rozanska, S. Ryu, H. Sahoo, Y. Sakai, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. G. Shiu, B. Shwartz, J. B. Singh, P. Smerkol, E. Solovieva, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Ushiroda, G. Varner, K. E. Varvell, K. Vervink, C. H. Wang, M. Z. Wang, P. Wang, Y. Watanabe, R. Wedd, Eunil Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, C. Z. Yuan, C. C. Zhang, V. Zhilich, T. Zivko, A. Zupanc, O. Zyukova

Research output: Contribution to journal › Article

95 Citations (Scopus)

Abstract

We present a measurement of the decay B-→τ -ν̄τ using a data sample containing 657×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. A sample of B+B- pairs are tagged by reconstructing one B+ meson decaying semileptonically. We detect the B-→τ -ν̄τ candidate in the recoil. We obtain a signal with a significance of 3.6 standard deviations including systematic uncertainties, and measure the branching fraction to be B(B-→τ -ν̄τ)=[1.54-0.37+0.38(stat)-0.31+0.29(syst)] ×10-4. This result confirms the evidence for B -→τ-ν̄τ obtained in a previous Belle measurement that used a hadronic B tagging method.

Original languageEnglish
Article number071101
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume82
Issue number7
DOIs
Publication statusPublished - 2010 Oct 22

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marking
standard deviation
mesons
detectors
decay
energy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Hara, K., Iijima, T., Aihara, H., Aulchenko, V., Aushev, T., Aziz, T., ... Zyukova, O. (2010). Evidence for B-→τ-ν̄τ with a semileptonic tagging method. Physical Review D - Particles, Fields, Gravitation and Cosmology, 82(7), [071101]. https://doi.org/10.1103/PhysRevD.82.071101

Evidence for B-→τ-ν̄τ with a semileptonic tagging method. / Hara, K.; Iijima, T.; Aihara, H.; Aulchenko, V.; Aushev, T.; Aziz, T.; Bakich, A. M.; Barberio, E.; Belous, K.; Bischofberger, M.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Chang, P.; Chao, Y.; Chen, A.; Cheon, B. G.; Chiang, C. C.; Cho, I. S.; Choi, Y.; Dalseno, J.; Danilov, M.; Doležal, Z.; Dungel, W.; Eidelman, S.; Gabyshev, N.; Goldenzweig, P.; Golob, B.; Ha, H.; Hasegawa, Y.; Hayasaka, K.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hsiung, Y. B.; Hyun, H. J.; Inami, K.; Iwabuchi, M.; Iwasaki, Y.; Julius, T.; Kang, J. H.; Kawai, H.; Kawasaki, T.; Kichimi, H.; Kiesling, C.; Kim, H. J.; Kim, H. O.; Kim, J. H.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Kodyž, P.; Korpar, S.; Kreps, M.; Križan, P.; Krokovny, P.; Kuhr, T.; Kumita, T.; Kuzmin, A.; Kwon, Y. J.; Kyeong, S. H.; Lee, M. J.; Lee, S. H.; Li, J.; Limosani, A.; Liu, Y.; Liventsev, D.; Louvot, R.; Matyja, A.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mohanty, G. B.; Mori, T.; Nakano, E.; Nakao, M.; Nakazawa, H.; Neubauer, S.; Nishida, S.; Nishimura, K.; Nitoh, O.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Ozaki, H.; Pakhlova, G.; Park, C. W.; Park, H. K.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Prim, M.; Rozanska, M.; Ryu, S.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schümann, J.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shibuya, H.; Shiu, J. G.; Shwartz, B.; Singh, J. B.; Smerkol, P.; Solovieva, E.; Stanič, S.; Starič, M.; Sumisawa, K.; Sumiyoshi, T.; Teramoto, Y.; Tikhomirov, I.; Trabelsi, K.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Ushiroda, Y.; Varner, G.; Varvell, K. E.; Vervink, K.; Wang, C. H.; Wang, M. Z.; Wang, P.; Watanabe, Y.; Wedd, R.; Won, Eunil; Yabsley, B. D.; Yamashita, Y.; Yamauchi, M.; Yuan, C. Z.; Zhang, C. C.; Zhilich, V.; Zivko, T.; Zupanc, A.; Zyukova, O.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 82, No. 7, 071101, 22.10.2010.

Research output: Contribution to journal › Article

Hara, K, Iijima, T, Aihara, H, Aulchenko, V, Aushev, T, Aziz, T, Bakich, AM, Barberio, E, Belous, K, Bischofberger, M, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Chang, P, Chao, Y, Chen, A, Cheon, BG, Chiang, CC, Cho, IS, Choi, Y, Dalseno, J, Danilov, M, Doležal, Z, Dungel, W, Eidelman, S, Gabyshev, N, Goldenzweig, P, Golob, B, Ha, H, Hasegawa, Y, Hayasaka, K, Hayashii, H, Horii, Y, Hoshi, Y, Hsiung, YB, Hyun, HJ, Inami, K, Iwabuchi, M, Iwasaki, Y, Julius, T, Kang, JH, Kawai, H, Kawasaki, T, Kichimi, H, Kiesling, C, Kim, HJ, Kim, HO, Kim, JH, Kim, MJ, Kim, YJ, Kinoshita, K, Ko, BR, Kodyž, P, Korpar, S, Kreps, M, Križan, P, Krokovny, P, Kuhr, T, Kumita, T, Kuzmin, A, Kwon, YJ, Kyeong, SH, Lee, MJ, Lee, SH, Li, J, Limosani, A, Liu, Y, Liventsev, D, Louvot, R, Matyja, A, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mohanty, GB, Mori, T, Nakano, E, Nakao, M, Nakazawa, H, Neubauer, S, Nishida, S, Nishimura, K, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Ozaki, H, Pakhlova, G, Park, CW, Park, HK, Pestotnik, R, Petrič, M, Piilonen, LE, Prim, M, Rozanska, M, Ryu, S, Sahoo, H, Sakai, Y, Schneider, O, Schümann, J, Schwanda, C, Schwartz, AJ, Senyo, K, Sevior, ME, Shapkin, M, Shibuya, H, Shiu, JG, Shwartz, B, Singh, JB, Smerkol, P, Solovieva, E, Stanič, S, Starič, M, Sumisawa, K, Sumiyoshi, T, Teramoto, Y, Tikhomirov, I, Trabelsi, K, Uehara, S, Uglov, T, Unno, Y, Uno, S, Ushiroda, Y, Varner, G, Varvell, KE, Vervink, K, Wang, CH, Wang, MZ, Wang, P, Watanabe, Y, Wedd, R, Won, E, Yabsley, BD, Yamashita, Y, Yamauchi, M, Yuan, CZ, Zhang, CC, Zhilich, V, Zivko, T, Zupanc, A & Zyukova, O 2010, 'Evidence for B-→τ-ν̄τ with a semileptonic tagging method', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 82, no. 7, 071101. https://doi.org/10.1103/PhysRevD.82.071101
Hara K, Iijima T, Aihara H, Aulchenko V, Aushev T, Aziz T et al. Evidence for B-→τ-ν̄τ with a semileptonic tagging method. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2010 Oct 22;82(7). 071101. https://doi.org/10.1103/PhysRevD.82.071101
Hara, K. ; Iijima, T. ; Aihara, H. ; Aulchenko, V. ; Aushev, T. ; Aziz, T. ; Bakich, A. M. ; Barberio, E. ; Belous, K. ; Bischofberger, M. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Browder, T. E. ; Chang, P. ; Chao, Y. ; Chen, A. ; Cheon, B. G. ; Chiang, C. C. ; Cho, I. S. ; Choi, Y. ; Dalseno, J. ; Danilov, M. ; Doležal, Z. ; Dungel, W. ; Eidelman, S. ; Gabyshev, N. ; Goldenzweig, P. ; Golob, B. ; Ha, H. ; Hasegawa, Y. ; Hayasaka, K. ; Hayashii, H. ; Horii, Y. ; Hoshi, Y. ; Hsiung, Y. B. ; Hyun, H. J. ; Inami, K. ; Iwabuchi, M. ; Iwasaki, Y. ; Julius, T. ; Kang, J. H. ; Kawai, H. ; Kawasaki, T. ; Kichimi, H. ; Kiesling, C. ; Kim, H. J. ; Kim, H. O. ; Kim, J. H. ; Kim, M. J. ; Kim, Y. J. ; Kinoshita, K. ; Ko, B. R. ; Kodyž, P. ; Korpar, S. ; Kreps, M. ; Križan, P. ; Krokovny, P. ; Kuhr, T. ; Kumita, T. ; Kuzmin, A. ; Kwon, Y. J. ; Kyeong, S. H. ; Lee, M. J. ; Lee, S. H. ; Li, J. ; Limosani, A. ; Liu, Y. ; Liventsev, D. ; Louvot, R. ; Matyja, A. ; McOnie, S. ; Miyabayashi, K. ; Miyata, H. ; Miyazaki, Y. ; Mohanty, G. B. ; Mori, T. ; Nakano, E. ; Nakao, M. ; Nakazawa, H. ; Neubauer, S. ; Nishida, S. ; Nishimura, K. ; Nitoh, O. ; Nozaki, T. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Olsen, S. L. ; Ozaki, H. ; Pakhlova, G. ; Park, C. W. ; Park, H. K. ; Pestotnik, R. ; Petrič, M. ; Piilonen, L. E. ; Prim, M. ; Rozanska, M. ; Ryu, S. ; Sahoo, H. ; Sakai, Y. ; Schneider, O. ; Schümann, J. ; Schwanda, C. ; Schwartz, A. J. ; Senyo, K. ; Sevior, M. E. ; Shapkin, M. ; Shibuya, H. ; Shiu, J. G. ; Shwartz, B. ; Singh, J. B. ; Smerkol, P. ; Solovieva, E. ; Stanič, S. ; Starič, M. ; Sumisawa, K. ; Sumiyoshi, T. ; Teramoto, Y. ; Tikhomirov, I. ; Trabelsi, K. ; Uehara, S. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Ushiroda, Y. ; Varner, G. ; Varvell, K. E. ; Vervink, K. ; Wang, C. H. ; Wang, M. Z. ; Wang, P. ; Watanabe, Y. ; Wedd, R. ; Won, Eunil ; Yabsley, B. D. ; Yamashita, Y. ; Yamauchi, M. ; Yuan, C. Z. ; Zhang, C. C. ; Zhilich, V. ; Zivko, T. ; Zupanc, A. ; Zyukova, O. / Evidence for B-→τ-ν̄τ with a semileptonic tagging method. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2010 ; Vol. 82, No. 7.
@article{f5a38446b32d4e3f8d004279ef39e41f,
title = "Evidence for B-→τ-ν̄τ with a semileptonic tagging method",
abstract = "We present a measurement of the decay B-→τ -ν̄τ using a data sample containing 657×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. A sample of B+B- pairs are tagged by reconstructing one B+ meson decaying semileptonically. We detect the B-→τ -ν̄τ candidate in the recoil. We obtain a signal with a significance of 3.6 standard deviations including systematic uncertainties, and measure the branching fraction to be B(B-→τ -ν̄τ)=[1.54-0.37+0.38(stat)-0.31+0.29(syst)] ×10-4. This result confirms the evidence for B -→τ-ν̄τ obtained in a previous Belle measurement that used a hadronic B tagging method.",
author = "K. Hara and T. Iijima and H. Aihara and V. Aulchenko and T. Aushev and T. Aziz and Bakich, {A. M.} and E. Barberio and K. Belous and M. Bischofberger and A. Bondar and A. Bozek and M. Bračko and Browder, {T. E.} and P. Chang and Y. Chao and A. Chen and Cheon, {B. G.} and Chiang, {C. C.} and Cho, {I. S.} and Y. Choi and J. Dalseno and M. Danilov and Z. Doležal and W. Dungel and S. Eidelman and N. Gabyshev and P. Goldenzweig and B. Golob and H. Ha and Y. Hasegawa and K. Hayasaka and H. Hayashii and Y. Horii and Y. Hoshi and Hsiung, {Y. B.} and Hyun, {H. J.} and K. Inami and M. Iwabuchi and Y. Iwasaki and T. Julius and Kang, {J. H.} and H. Kawai and T. Kawasaki and H. Kichimi and C. Kiesling and Kim, {H. J.} and Kim, {H. O.} and Kim, {J. H.} and Kim, {M. J.} and Kim, {Y. J.} and K. Kinoshita and Ko, {B. R.} and P. Kodyž and S. Korpar and M. Kreps and P. Križan and P. Krokovny and T. Kuhr and T. Kumita and A. Kuzmin and Kwon, {Y. J.} and Kyeong, {S. H.} and Lee, {M. J.} and Lee, {S. H.} and J. Li and A. Limosani and Y. Liu 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 T. Mori and E. Nakano and M. Nakao and H. Nakazawa and S. Neubauer and S. Nishida and K. Nishimura and O. Nitoh and T. Nozaki and S. Ogawa and T. Ohshima and S. Okuno and Olsen, {S. L.} and H. Ozaki and G. Pakhlova and Park, {C. W.} and Park, {H. K.} and R. Pestotnik and M. Petrič and Piilonen, {L. E.} and M. Prim and M. Rozanska and S. Ryu and H. Sahoo and Y. Sakai and O. Schneider and J. Sch{\"u}mann and C. Schwanda and Schwartz, {A. J.} and K. Senyo and Sevior, {M. E.} and M. Shapkin and H. Shibuya and Shiu, {J. G.} and B. Shwartz and Singh, {J. B.} and P. Smerkol and E. Solovieva and S. Stanič and M. Starič and K. Sumisawa and T. Sumiyoshi and Y. Teramoto and I. Tikhomirov and K. Trabelsi and S. Uehara and T. Uglov and Y. Unno and S. Uno and Y. Ushiroda and G. Varner and Varvell, {K. E.} and K. Vervink and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Y. Watanabe and R. Wedd and Eunil Won and Yabsley, {B. D.} and Y. Yamashita and M. Yamauchi and Yuan, {C. Z.} and Zhang, {C. C.} and V. Zhilich and T. Zivko and A. Zupanc and O. Zyukova",
year = "2010",
month = "10",
day = "22",
doi = "10.1103/PhysRevD.82.071101",
language = "English",
volume = "82",
journal = "Physical review D: Particles and fields",
issn = "0556-2821",
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TY - JOUR

T1 - Evidence for B-→τ-ν̄τ with a semileptonic tagging method

AU - Hara, K.

AU - Iijima, T.

AU - Aihara, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Aziz, T.

AU - Bakich, A. M.

AU - Barberio, E.

AU - Belous, K.

AU - Bischofberger, M.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, P.

AU - Chao, Y.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chiang, C. C.

AU - Cho, I. S.

AU - Choi, Y.

AU - Dalseno, J.

AU - Danilov, M.

AU - Doležal, Z.

AU - Dungel, W.

AU - Eidelman, S.

AU - Gabyshev, N.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Ha, H.

AU - Hasegawa, Y.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Inami, K.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Julius, T.

AU - Kang, J. H.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kiesling, C.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, J. H.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Kodyž, P.

AU - Korpar, S.

AU - Kreps, M.

AU - Križan, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Kyeong, S. H.

AU - Lee, M. J.

AU - Lee, S. H.

AU - Li, J.

AU - Limosani, A.

AU - Liu, Y.

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 - Mori, T.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Neubauer, S.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ozaki, H.

AU - Pakhlova, G.

AU - Park, C. W.

AU - Park, H. K.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Prim, M.

AU - Rozanska, M.

AU - Ryu, S.

AU - Sahoo, H.

AU - Sakai, Y.

AU - Schneider, O.

AU - Schümann, J.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shibuya, H.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Singh, J. B.

AU - Smerkol, P.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Teramoto, Y.

AU - Tikhomirov, I.

AU - Trabelsi, K.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Ushiroda, Y.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vervink, K.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Watanabe, Y.

AU - Wedd, R.

AU - Won, Eunil

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yuan, C. Z.

AU - Zhang, C. C.

AU - Zhilich, V.

AU - Zivko, T.

AU - Zupanc, A.

AU - Zyukova, O.

PY - 2010/10/22

Y1 - 2010/10/22

N2 - We present a measurement of the decay B-→τ -ν̄τ using a data sample containing 657×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. A sample of B+B- pairs are tagged by reconstructing one B+ meson decaying semileptonically. We detect the B-→τ -ν̄τ candidate in the recoil. We obtain a signal with a significance of 3.6 standard deviations including systematic uncertainties, and measure the branching fraction to be B(B-→τ -ν̄τ)=[1.54-0.37+0.38(stat)-0.31+0.29(syst)] ×10-4. This result confirms the evidence for B -→τ-ν̄τ obtained in a previous Belle measurement that used a hadronic B tagging method.

AB - We present a measurement of the decay B-→τ -ν̄τ using a data sample containing 657×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. A sample of B+B- pairs are tagged by reconstructing one B+ meson decaying semileptonically. We detect the B-→τ -ν̄τ candidate in the recoil. We obtain a signal with a significance of 3.6 standard deviations including systematic uncertainties, and measure the branching fraction to be B(B-→τ -ν̄τ)=[1.54-0.37+0.38(stat)-0.31+0.29(syst)] ×10-4. This result confirms the evidence for B -→τ-ν̄τ obtained in a previous Belle measurement that used a hadronic B tagging method.

UR - http://www.scopus.com/inward/record.url?scp=78650973111&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78650973111&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.82.071101

DO - 10.1103/PhysRevD.82.071101

M3 - Article

VL - 82

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 7

M1 - 071101

ER -

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