Measurement of inclusive radiative B-meson decays with a photon energy threshold of 1.7 GeV

A. Limosani, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, M. Bischofberger, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, P. Chang, Y. Chao, A. Chen, B. G. Cheon, Y. Choi, J. DalsenoM. Danilov, A. Drutskoy, W. Dungel, S. Eidelman, P. Goldenzweig, B. Golob, H. Ha, H. Hayashii, Y. Hoshi, W. S. Hou, H. J. Hyun, K. Inami, R. Itoh, Y. Iwasaki, T. Julius, D. H. Kah, H. O. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, S. Korpar, M. Kreps, P. Križan, P. Krokovny, T. Kuhr, R. Kumar, Y. J. Kwon, S. H. Kyeong, T. Lesiak, J. Li, C. Liu, D. Liventsev, R. Louvot, A. Matyja, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, T. Mori, M. Nakao, H. Nakazawa, S. Nishida, K. Nishimura, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, G. Pakhlova, C. W. Park, H. Park, L. E. Piilonen, M. Rozanska, H. Sahoo, Y. Sakai, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, C. P. Shen, J. G. Shiu, J. B. Singh, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, S. Suzuki, G. N. Taylor, Y. Teramoto, K. Trabelsi, T. Tsuboyama, S. Uehara, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, G. Varner, K. E. Varvell, K. Vervink, C. H. Wang, M. Z. Wang, P. Wang, Y. Watanabe, R. Wedd, J. Wicht, Eunil Won, B. D. Yabsley, H. Yamamoto, Y. Yamashita, Z. P. Zhang, T. Zivko, A. Zupanc

Research output: Contribution to journalArticle

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Abstract

Using 605fb-1 of data collected at the Υ(4S) resonance we present a measurement of the inclusive radiative B-meson decay channel, B→Xsγ. For the lower photon energy thresholds of 1.7, 1.8, 1.9, and 2.0 GeV, as defined in the rest frame of the B meson, we measure the partial branching fraction and the mean and variance of the photon energy spectrum. At the 1.7 GeV threshold we obtain the partial branching fraction BF(B→Xsγ)=(3.45±0. 15±0.40)×10-4, where the errors are statistical and systematic.

Original languageEnglish
Article number241801
JournalPhysical Review Letters
Volume103
Issue number24
DOIs
Publication statusPublished - 2009 Dec 7

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mesons
thresholds
photons
decay
energy spectra
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Limosani, A., Aihara, H., Arinstein, K., Aushev, T., Bakich, A. M., Balagura, V., ... Zupanc, A. (2009). Measurement of inclusive radiative B-meson decays with a photon energy threshold of 1.7 GeV. Physical Review Letters, 103(24), [241801]. https://doi.org/10.1103/PhysRevLett.103.241801

Measurement of inclusive radiative B-meson decays with a photon energy threshold of 1.7 GeV. / Limosani, A.; Aihara, H.; Arinstein, K.; Aushev, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bay, A.; Belous, K.; Bischofberger, M.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Chang, P.; Chao, Y.; Chen, A.; Cheon, B. G.; Choi, Y.; Dalseno, J.; Danilov, M.; Drutskoy, A.; Dungel, W.; Eidelman, S.; Goldenzweig, P.; Golob, B.; Ha, H.; Hayashii, H.; Hoshi, Y.; Hou, W. S.; Hyun, H. J.; Inami, K.; Itoh, R.; Iwasaki, Y.; Julius, T.; Kah, D. H.; Kim, H. O.; Kim, S. K.; Kim, Y. I.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Korpar, S.; Kreps, M.; Križan, P.; Krokovny, P.; Kuhr, T.; Kumar, R.; Kwon, Y. J.; Kyeong, S. H.; Lesiak, T.; Li, J.; Liu, C.; Liventsev, D.; Louvot, R.; Matyja, A.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Mori, T.; Nakao, M.; Nakazawa, H.; Nishida, S.; Nishimura, K.; Nitoh, O.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okuno, S.; Ozaki, H.; Pakhlova, G.; Park, C. W.; Park, H.; Piilonen, L. E.; Rozanska, M.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schümann, J.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shen, C. P.; Shiu, J. G.; Singh, J. B.; Stanič, S.; Starič, M.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, S.; Taylor, G. N.; Teramoto, Y.; Trabelsi, K.; Tsuboyama, T.; Uehara, S.; Unno, Y.; Uno, S.; Urquijo, P.; Ushiroda, Y.; Varner, G.; Varvell, K. E.; Vervink, K.; Wang, C. H.; Wang, M. Z.; Wang, P.; Watanabe, Y.; Wedd, R.; Wicht, J.; Won, Eunil; Yabsley, B. D.; Yamamoto, H.; Yamashita, Y.; Zhang, Z. P.; Zivko, T.; Zupanc, A.

In: Physical Review Letters, Vol. 103, No. 24, 241801, 07.12.2009.

Research output: Contribution to journalArticle

Limosani, A, Aihara, H, Arinstein, K, Aushev, T, Bakich, AM, Balagura, V, Barberio, E, Bay, A, Belous, K, Bischofberger, M, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Chang, P, Chao, Y, Chen, A, Cheon, BG, Choi, Y, Dalseno, J, Danilov, M, Drutskoy, A, Dungel, W, Eidelman, S, Goldenzweig, P, Golob, B, Ha, H, Hayashii, H, Hoshi, Y, Hou, WS, Hyun, HJ, Inami, K, Itoh, R, Iwasaki, Y, Julius, T, Kah, DH, Kim, HO, Kim, SK, Kim, YI, Kim, YJ, Kinoshita, K, Ko, BR, Korpar, S, Kreps, M, Križan, P, Krokovny, P, Kuhr, T, Kumar, R, Kwon, YJ, Kyeong, SH, Lesiak, T, Li, J, Liu, C, Liventsev, D, Louvot, R, Matyja, A, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mizuk, R, Mori, T, Nakao, M, Nakazawa, H, Nishida, S, Nishimura, K, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okuno, S, Ozaki, H, Pakhlova, G, Park, CW, Park, H, Piilonen, LE, Rozanska, M, Sahoo, H, Sakai, Y, Schneider, O, Schümann, J, Schwanda, C, Schwartz, AJ, Senyo, K, Sevior, ME, Shapkin, M, Shebalin, V, Shen, CP, Shiu, JG, Singh, JB, Stanič, S, Starič, M, Sumisawa, K, Sumiyoshi, T, Suzuki, S, Taylor, GN, Teramoto, Y, Trabelsi, K, Tsuboyama, T, Uehara, S, Unno, Y, Uno, S, Urquijo, P, Ushiroda, Y, Varner, G, Varvell, KE, Vervink, K, Wang, CH, Wang, MZ, Wang, P, Watanabe, Y, Wedd, R, Wicht, J, Won, E, Yabsley, BD, Yamamoto, H, Yamashita, Y, Zhang, ZP, Zivko, T & Zupanc, A 2009, 'Measurement of inclusive radiative B-meson decays with a photon energy threshold of 1.7 GeV', Physical Review Letters, vol. 103, no. 24, 241801. https://doi.org/10.1103/PhysRevLett.103.241801
Limosani, A. ; Aihara, H. ; Arinstein, K. ; Aushev, T. ; Bakich, A. M. ; Balagura, V. ; Barberio, E. ; Bay, A. ; Belous, K. ; Bischofberger, M. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Browder, T. E. ; Chang, P. ; Chao, Y. ; Chen, A. ; Cheon, B. G. ; Choi, Y. ; Dalseno, J. ; Danilov, M. ; Drutskoy, A. ; Dungel, W. ; Eidelman, S. ; Goldenzweig, P. ; Golob, B. ; Ha, H. ; Hayashii, H. ; Hoshi, Y. ; Hou, W. S. ; Hyun, H. J. ; Inami, K. ; Itoh, R. ; Iwasaki, Y. ; Julius, T. ; Kah, D. H. ; Kim, H. O. ; Kim, S. K. ; Kim, Y. I. ; Kim, Y. J. ; Kinoshita, K. ; Ko, B. R. ; Korpar, S. ; Kreps, M. ; Križan, P. ; Krokovny, P. ; Kuhr, T. ; Kumar, R. ; Kwon, Y. J. ; Kyeong, S. H. ; Lesiak, T. ; Li, J. ; Liu, C. ; Liventsev, D. ; Louvot, R. ; Matyja, A. ; Miyabayashi, K. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Mori, T. ; Nakao, M. ; Nakazawa, H. ; Nishida, S. ; Nishimura, K. ; Nitoh, O. ; Nozaki, T. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Ozaki, H. ; Pakhlova, G. ; Park, C. W. ; Park, H. ; Piilonen, L. E. ; Rozanska, M. ; Sahoo, H. ; Sakai, Y. ; Schneider, O. ; Schümann, J. ; Schwanda, C. ; Schwartz, A. J. ; Senyo, K. ; Sevior, M. E. ; Shapkin, M. ; Shebalin, V. ; Shen, C. P. ; Shiu, J. G. ; Singh, J. B. ; Stanič, S. ; Starič, M. ; Sumisawa, K. ; Sumiyoshi, T. ; Suzuki, S. ; Taylor, G. N. ; Teramoto, Y. ; Trabelsi, K. ; Tsuboyama, T. ; Uehara, S. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Ushiroda, Y. ; Varner, G. ; Varvell, K. E. ; Vervink, K. ; Wang, C. H. ; Wang, M. Z. ; Wang, P. ; Watanabe, Y. ; Wedd, R. ; Wicht, J. ; Won, Eunil ; Yabsley, B. D. ; Yamamoto, H. ; Yamashita, Y. ; Zhang, Z. P. ; Zivko, T. ; Zupanc, A. / Measurement of inclusive radiative B-meson decays with a photon energy threshold of 1.7 GeV. In: Physical Review Letters. 2009 ; Vol. 103, No. 24.
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title = "Measurement of inclusive radiative B-meson decays with a photon energy threshold of 1.7 GeV",
abstract = "Using 605fb-1 of data collected at the Υ(4S) resonance we present a measurement of the inclusive radiative B-meson decay channel, B→Xsγ. For the lower photon energy thresholds of 1.7, 1.8, 1.9, and 2.0 GeV, as defined in the rest frame of the B meson, we measure the partial branching fraction and the mean and variance of the photon energy spectrum. At the 1.7 GeV threshold we obtain the partial branching fraction BF(B→Xsγ)=(3.45±0. 15±0.40)×10-4, where the errors are statistical and systematic.",
author = "A. Limosani and H. Aihara and K. Arinstein and T. Aushev and Bakich, {A. M.} and V. Balagura and E. Barberio and A. Bay 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 Y. Choi and J. Dalseno and M. Danilov and A. Drutskoy and W. Dungel and S. Eidelman and P. Goldenzweig and B. Golob and H. Ha and H. Hayashii and Y. Hoshi and Hou, {W. S.} and Hyun, {H. J.} and K. Inami and R. Itoh and Y. Iwasaki and T. Julius and Kah, {D. H.} and Kim, {H. O.} and Kim, {S. K.} and Kim, {Y. I.} and Kim, {Y. J.} and K. Kinoshita and Ko, {B. R.} and S. Korpar and M. Kreps and P. Križan and P. Krokovny and T. Kuhr and R. Kumar and Kwon, {Y. J.} and Kyeong, {S. H.} and T. Lesiak and J. Li and C. Liu and D. Liventsev and R. Louvot and A. Matyja and K. Miyabayashi and H. Miyata and Y. Miyazaki and R. Mizuk and T. Mori and M. Nakao and H. Nakazawa and S. Nishida and K. Nishimura and O. Nitoh and T. Nozaki and S. Ogawa and T. Ohshima and S. Okuno and H. Ozaki and G. Pakhlova and Park, {C. W.} and H. Park and Piilonen, {L. E.} and M. Rozanska 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 V. Shebalin and Shen, {C. P.} and Shiu, {J. G.} and Singh, {J. B.} and S. Stanič and M. Starič and K. Sumisawa and T. Sumiyoshi and S. Suzuki and Taylor, {G. N.} and Y. Teramoto and K. Trabelsi and T. Tsuboyama and S. Uehara and Y. Unno and S. Uno and P. Urquijo 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 J. Wicht and Eunil Won and Yabsley, {B. D.} and H. Yamamoto and Y. Yamashita and Zhang, {Z. P.} and T. Zivko and A. Zupanc",
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TY - JOUR

T1 - Measurement of inclusive radiative B-meson decays with a photon energy threshold of 1.7 GeV

AU - Limosani, A.

AU - Aihara, H.

AU - Arinstein, K.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barberio, E.

AU - Bay, A.

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 - Choi, Y.

AU - Dalseno, J.

AU - Danilov, M.

AU - Drutskoy, A.

AU - Dungel, W.

AU - Eidelman, S.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Ha, H.

AU - Hayashii, H.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hyun, H. J.

AU - Inami, K.

AU - Itoh, R.

AU - Iwasaki, Y.

AU - Julius, T.

AU - Kah, D. H.

AU - Kim, H. O.

AU - Kim, S. K.

AU - Kim, Y. I.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Korpar, S.

AU - Kreps, M.

AU - Križan, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kumar, R.

AU - Kwon, Y. J.

AU - Kyeong, S. H.

AU - Lesiak, T.

AU - Li, J.

AU - Liu, C.

AU - Liventsev, D.

AU - Louvot, R.

AU - Matyja, A.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Mori, T.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Ozaki, H.

AU - Pakhlova, G.

AU - Park, C. W.

AU - Park, H.

AU - Piilonen, L. E.

AU - Rozanska, M.

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 - Shebalin, V.

AU - Shen, C. P.

AU - Shiu, J. G.

AU - Singh, J. B.

AU - Stanič, S.

AU - Starič, M.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Suzuki, S.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Uehara, S.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

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 - Wicht, J.

AU - Won, Eunil

AU - Yabsley, B. D.

AU - Yamamoto, H.

AU - Yamashita, Y.

AU - Zhang, Z. P.

AU - Zivko, T.

AU - Zupanc, A.

PY - 2009/12/7

Y1 - 2009/12/7

N2 - Using 605fb-1 of data collected at the Υ(4S) resonance we present a measurement of the inclusive radiative B-meson decay channel, B→Xsγ. For the lower photon energy thresholds of 1.7, 1.8, 1.9, and 2.0 GeV, as defined in the rest frame of the B meson, we measure the partial branching fraction and the mean and variance of the photon energy spectrum. At the 1.7 GeV threshold we obtain the partial branching fraction BF(B→Xsγ)=(3.45±0. 15±0.40)×10-4, where the errors are statistical and systematic.

AB - Using 605fb-1 of data collected at the Υ(4S) resonance we present a measurement of the inclusive radiative B-meson decay channel, B→Xsγ. For the lower photon energy thresholds of 1.7, 1.8, 1.9, and 2.0 GeV, as defined in the rest frame of the B meson, we measure the partial branching fraction and the mean and variance of the photon energy spectrum. At the 1.7 GeV threshold we obtain the partial branching fraction BF(B→Xsγ)=(3.45±0. 15±0.40)×10-4, where the errors are statistical and systematic.

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U2 - 10.1103/PhysRevLett.103.241801

DO - 10.1103/PhysRevLett.103.241801

M3 - Article

C2 - 20366195

AN - SCOPUS:71549157774

VL - 103

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 24

M1 - 241801

ER -