A study of the charm and bottom quark production in e+e- annihilation at s = 58 GeV using prompt electrons

K. Abe, K. Amako, Y. Arai, T. Arima, Y. Asano, M. Chiba, Y. Chiba, M. Daigo, M. Fukawa, Y. Fukushima, J. Haba, Y. Hemmi, M. Higuchi, F. Hinode, T. Hirose, Y. Homma, Y. Hoshi, N. Hosoda, N. Ishihara, E. KanataniN. Kanda, N. Kanematsu, J. Kanzaki, R. Kikuchi, T. Kondo, T. T. Korhonen, A. Krüger, H. Kurashige, J. MacNaughton, T. Matsui, M. Miura, K. Miyake, S. Mori, Y. Nagashima, T. Nakamura, I. Nakano, S. Odaka, K. Ogawa, T. Ohama, T. Ohsugi, H. Ohyama, A. Okamoto, A. Ono, T. Oyama, H. Sakamoto, M. Sakuda, M. Sato, N. Sato, M. Shioden, J. Shirai, M. Shirakata, T. Sumiyoshi, A. Suzuki, Y. Takada, H. Takaki, F. Takasaki, M. Takita, N. Tamura, D. Tatsumi, K. Tobimatsu, T. Tsuboyama, S. Uehara, Y. Unno, M. Utsumi, Y. Watase, F. Yabuki, Y. Yamada, T. Yamagata, Y. Yonezawa, H. Yoshida

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Abstract

We have studied c (charm) and b (bottom) quark production at the TRISTAN energy region by tagging prompt electrons from the semileptonic decays. Electrons were identified over a wide momentum range between 1 and 29 GeV/c by a transition-radiation-detector in addition to a lead-glass calorimeter. The production cross sections of c and b quarks and the mean values of the fragmentation functions for c and b quarks were obtained as σc = 55.9±8.8(stat.)±7.9(syst.) pb, σb = 13.1±2.9(stat.)±1.0(syst.) pb, 〈xc〉 = 0.44±0.08(stat.)±0.04(syst.) and 〈xb〉 = 0.72±0.12(stat.)±0.08(syst.), respectively. The forward-backward asymmetries of the c and b quarks were also measured to be -0.57±0.16(stat.)±0.06(syst.) and -0.64±0.26(stat.)± 0.07(syst.), respectively. Both the cross sections and the forward-backward asymmetries of the c and b quarks are consistent with the standard model.

Original languageEnglish
Pages (from-to)288-298
Number of pages11
JournalPhysics Letters B
Volume313
Issue number1-2
DOIs
Publication statusPublished - Aug 26 1993
Externally publishedYes

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quarks
electrons
asymmetry
radiation detectors
cross sections
marking
calorimeters
fragmentation
momentum
glass
decay
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

A study of the charm and bottom quark production in e+e- annihilation at s = 58 GeV using prompt electrons. / Abe, K.; Amako, K.; Arai, Y.; Arima, T.; Asano, Y.; Chiba, M.; Chiba, Y.; Daigo, M.; Fukawa, M.; Fukushima, Y.; Haba, J.; Hemmi, Y.; Higuchi, M.; Hinode, F.; Hirose, T.; Homma, Y.; Hoshi, Y.; Hosoda, N.; Ishihara, N.; Kanatani, E.; Kanda, N.; Kanematsu, N.; Kanzaki, J.; Kikuchi, R.; Kondo, T.; Korhonen, T. T.; Krüger, A.; Kurashige, H.; MacNaughton, J.; Matsui, T.; Miura, M.; Miyake, K.; Mori, S.; Nagashima, Y.; Nakamura, T.; Nakano, I.; Odaka, S.; Ogawa, K.; Ohama, T.; Ohsugi, T.; Ohyama, H.; Okamoto, A.; Ono, A.; Oyama, T.; Sakamoto, H.; Sakuda, M.; Sato, M.; Sato, N.; Shioden, M.; Shirai, J.; Shirakata, M.; Sumiyoshi, T.; Suzuki, A.; Takada, Y.; Takaki, H.; Takasaki, F.; Takita, M.; Tamura, N.; Tatsumi, D.; Tobimatsu, K.; Tsuboyama, T.; Uehara, S.; Unno, Y.; Utsumi, M.; Watase, Y.; Yabuki, F.; Yamada, Y.; Yamagata, T.; Yonezawa, Y.; Yoshida, H.

In: Physics Letters B, Vol. 313, No. 1-2, 26.08.1993, p. 288-298.

Research output: Contribution to journalArticle

Abe, K, Amako, K, Arai, Y, Arima, T, Asano, Y, Chiba, M, Chiba, Y, Daigo, M, Fukawa, M, Fukushima, Y, Haba, J, Hemmi, Y, Higuchi, M, Hinode, F, Hirose, T, Homma, Y, Hoshi, Y, Hosoda, N, Ishihara, N, Kanatani, E, Kanda, N, Kanematsu, N, Kanzaki, J, Kikuchi, R, Kondo, T, Korhonen, TT, Krüger, A, Kurashige, H, MacNaughton, J, Matsui, T, Miura, M, Miyake, K, Mori, S, Nagashima, Y, Nakamura, T, Nakano, I, Odaka, S, Ogawa, K, Ohama, T, Ohsugi, T, Ohyama, H, Okamoto, A, Ono, A, Oyama, T, Sakamoto, H, Sakuda, M, Sato, M, Sato, N, Shioden, M, Shirai, J, Shirakata, M, Sumiyoshi, T, Suzuki, A, Takada, Y, Takaki, H, Takasaki, F, Takita, M, Tamura, N, Tatsumi, D, Tobimatsu, K, Tsuboyama, T, Uehara, S, Unno, Y, Utsumi, M, Watase, Y, Yabuki, F, Yamada, Y, Yamagata, T, Yonezawa, Y & Yoshida, H 1993, 'A study of the charm and bottom quark production in e+e- annihilation at s = 58 GeV using prompt electrons', Physics Letters B, vol. 313, no. 1-2, pp. 288-298. https://doi.org/10.1016/0370-2693(93)91226-D
Abe, K. ; Amako, K. ; Arai, Y. ; Arima, T. ; Asano, Y. ; Chiba, M. ; Chiba, Y. ; Daigo, M. ; Fukawa, M. ; Fukushima, Y. ; Haba, J. ; Hemmi, Y. ; Higuchi, M. ; Hinode, F. ; Hirose, T. ; Homma, Y. ; Hoshi, Y. ; Hosoda, N. ; Ishihara, N. ; Kanatani, E. ; Kanda, N. ; Kanematsu, N. ; Kanzaki, J. ; Kikuchi, R. ; Kondo, T. ; Korhonen, T. T. ; Krüger, A. ; Kurashige, H. ; MacNaughton, J. ; Matsui, T. ; Miura, M. ; Miyake, K. ; Mori, S. ; Nagashima, Y. ; Nakamura, T. ; Nakano, I. ; Odaka, S. ; Ogawa, K. ; Ohama, T. ; Ohsugi, T. ; Ohyama, H. ; Okamoto, A. ; Ono, A. ; Oyama, T. ; Sakamoto, H. ; Sakuda, M. ; Sato, M. ; Sato, N. ; Shioden, M. ; Shirai, J. ; Shirakata, M. ; Sumiyoshi, T. ; Suzuki, A. ; Takada, Y. ; Takaki, H. ; Takasaki, F. ; Takita, M. ; Tamura, N. ; Tatsumi, D. ; Tobimatsu, K. ; Tsuboyama, T. ; Uehara, S. ; Unno, Y. ; Utsumi, M. ; Watase, Y. ; Yabuki, F. ; Yamada, Y. ; Yamagata, T. ; Yonezawa, Y. ; Yoshida, H. / A study of the charm and bottom quark production in e+e- annihilation at s = 58 GeV using prompt electrons. In: Physics Letters B. 1993 ; Vol. 313, No. 1-2. pp. 288-298.
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title = "A study of the charm and bottom quark production in e+e- annihilation at s = 58 GeV using prompt electrons",
abstract = "We have studied c (charm) and b (bottom) quark production at the TRISTAN energy region by tagging prompt electrons from the semileptonic decays. Electrons were identified over a wide momentum range between 1 and 29 GeV/c by a transition-radiation-detector in addition to a lead-glass calorimeter. The production cross sections of c and b quarks and the mean values of the fragmentation functions for c and b quarks were obtained as σc = 55.9±8.8(stat.)±7.9(syst.) pb, σb = 13.1±2.9(stat.)±1.0(syst.) pb, 〈xc〉 = 0.44±0.08(stat.)±0.04(syst.) and 〈xb〉 = 0.72±0.12(stat.)±0.08(syst.), respectively. The forward-backward asymmetries of the c and b quarks were also measured to be -0.57±0.16(stat.)±0.06(syst.) and -0.64±0.26(stat.)± 0.07(syst.), respectively. Both the cross sections and the forward-backward asymmetries of the c and b quarks are consistent with the standard model.",
author = "K. Abe and K. Amako and Y. Arai and T. Arima and Y. Asano and M. Chiba and Y. Chiba and M. Daigo and M. Fukawa and Y. Fukushima and J. Haba and Y. Hemmi and M. Higuchi and F. Hinode and T. Hirose and Y. Homma and Y. Hoshi and N. Hosoda and N. Ishihara and E. Kanatani and N. Kanda and N. Kanematsu and J. Kanzaki and R. Kikuchi and T. Kondo and Korhonen, {T. T.} and A. Kr{\"u}ger and H. Kurashige and J. MacNaughton and T. Matsui and M. Miura and K. Miyake and S. Mori and Y. Nagashima and T. Nakamura and I. Nakano and S. Odaka and K. Ogawa and T. Ohama and T. Ohsugi and H. Ohyama and A. Okamoto and A. Ono and T. Oyama and H. Sakamoto and M. Sakuda and M. Sato and N. Sato and M. Shioden and J. Shirai and M. Shirakata and T. Sumiyoshi and A. Suzuki and Y. Takada and H. Takaki and F. Takasaki and M. Takita and N. Tamura and D. Tatsumi and K. Tobimatsu and T. Tsuboyama and S. Uehara and Y. Unno and M. Utsumi and Y. Watase and F. Yabuki and Y. Yamada and T. Yamagata and Y. Yonezawa and H. Yoshida",
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TY - JOUR

T1 - A study of the charm and bottom quark production in e+e- annihilation at s = 58 GeV using prompt electrons

AU - Abe, K.

AU - Amako, K.

AU - Arai, Y.

AU - Arima, T.

AU - Asano, Y.

AU - Chiba, M.

AU - Chiba, Y.

AU - Daigo, M.

AU - Fukawa, M.

AU - Fukushima, Y.

AU - Haba, J.

AU - Hemmi, Y.

AU - Higuchi, M.

AU - Hinode, F.

AU - Hirose, T.

AU - Homma, Y.

AU - Hoshi, Y.

AU - Hosoda, N.

AU - Ishihara, N.

AU - Kanatani, E.

AU - Kanda, N.

AU - Kanematsu, N.

AU - Kanzaki, J.

AU - Kikuchi, R.

AU - Kondo, T.

AU - Korhonen, T. T.

AU - Krüger, A.

AU - Kurashige, H.

AU - MacNaughton, J.

AU - Matsui, T.

AU - Miura, M.

AU - Miyake, K.

AU - Mori, S.

AU - Nagashima, Y.

AU - Nakamura, T.

AU - Nakano, I.

AU - Odaka, S.

AU - Ogawa, K.

AU - Ohama, T.

AU - Ohsugi, T.

AU - Ohyama, H.

AU - Okamoto, A.

AU - Ono, A.

AU - Oyama, T.

AU - Sakamoto, H.

AU - Sakuda, M.

AU - Sato, M.

AU - Sato, N.

AU - Shioden, M.

AU - Shirai, J.

AU - Shirakata, M.

AU - Sumiyoshi, T.

AU - Suzuki, A.

AU - Takada, Y.

AU - Takaki, H.

AU - Takasaki, F.

AU - Takita, M.

AU - Tamura, N.

AU - Tatsumi, D.

AU - Tobimatsu, K.

AU - Tsuboyama, T.

AU - Uehara, S.

AU - Unno, Y.

AU - Utsumi, M.

AU - Watase, Y.

AU - Yabuki, F.

AU - Yamada, Y.

AU - Yamagata, T.

AU - Yonezawa, Y.

AU - Yoshida, H.

PY - 1993/8/26

Y1 - 1993/8/26

N2 - We have studied c (charm) and b (bottom) quark production at the TRISTAN energy region by tagging prompt electrons from the semileptonic decays. Electrons were identified over a wide momentum range between 1 and 29 GeV/c by a transition-radiation-detector in addition to a lead-glass calorimeter. The production cross sections of c and b quarks and the mean values of the fragmentation functions for c and b quarks were obtained as σc = 55.9±8.8(stat.)±7.9(syst.) pb, σb = 13.1±2.9(stat.)±1.0(syst.) pb, 〈xc〉 = 0.44±0.08(stat.)±0.04(syst.) and 〈xb〉 = 0.72±0.12(stat.)±0.08(syst.), respectively. The forward-backward asymmetries of the c and b quarks were also measured to be -0.57±0.16(stat.)±0.06(syst.) and -0.64±0.26(stat.)± 0.07(syst.), respectively. Both the cross sections and the forward-backward asymmetries of the c and b quarks are consistent with the standard model.

AB - We have studied c (charm) and b (bottom) quark production at the TRISTAN energy region by tagging prompt electrons from the semileptonic decays. Electrons were identified over a wide momentum range between 1 and 29 GeV/c by a transition-radiation-detector in addition to a lead-glass calorimeter. The production cross sections of c and b quarks and the mean values of the fragmentation functions for c and b quarks were obtained as σc = 55.9±8.8(stat.)±7.9(syst.) pb, σb = 13.1±2.9(stat.)±1.0(syst.) pb, 〈xc〉 = 0.44±0.08(stat.)±0.04(syst.) and 〈xb〉 = 0.72±0.12(stat.)±0.08(syst.), respectively. The forward-backward asymmetries of the c and b quarks were also measured to be -0.57±0.16(stat.)±0.06(syst.) and -0.64±0.26(stat.)± 0.07(syst.), respectively. Both the cross sections and the forward-backward asymmetries of the c and b quarks are consistent with the standard model.

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UR - http://www.scopus.com/inward/citedby.url?scp=0001217720&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(93)91226-D

DO - 10.1016/0370-2693(93)91226-D

M3 - Article

AN - SCOPUS:0001217720

VL - 313

SP - 288

EP - 298

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-2

ER -