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Your search keyword '"H.I Jang"' showing total 4 results
Start Over Author "H.I Jang" Topic analytical chemistry
4 results on '"H.I Jang"'

1. Measurement of Γ(D0 → K−μ+ν)/Γ(D0→ μ+X using a D tag

Author

K. Kodama, N. Ushida, A. Mokhtarani, V.S. Paolone, J.T. Volk, J.O. Wilcox, P.M. Yager, R.M. Edelstein, A.P. Freyberger, D.B. Gibaut, R.J. Lipton, W.R. Nichols, D.M. Potter, J.S. Russ, C. Zhang, Y. Zhang, H.I. Jang, J.Y. Kim, T.I. Kim, I.T. Lim, M.Y. Pac, B.R. Baller, R.J. Stefanski, K. Nakazawa, K.S. Chung, S.H. Chung, D.C. Kim, I.G. Park, M.S. Park, J.S. Song, C.S. Yoon, M. Aryal, N.W. Reay, R.A. Sidwell, N.R. Stanton, M. Chikawa, T. Abe, T. Fujii, G. Fujioka, K. Fujiwara, H. Fukushima, T. Hara, Y. Takahashi, K. Taruma, Y. Tsuzuki, C. Yokoyama, S.D. Chang, B.G. Cheon, J.H. Cho, J.S. Kang, C.O. Kim, K.Y. Kim, T.Y. Kim, J.C. Lee, S.B. Lee, G.Y. Lim, S.W. Nam, T.S. Shin, K.S. Sim, J.K. Woo, Y. Isokane, Y. Tsuneoka, S. Aoki, A. Gauthier, K. Hoshino, H. Kitamura, M. Kobayashi, M. Miyanishi, K. Nakamura, M. Nakamura, Y. Nakamura, S. Nakanishi, K. Niu, K. Niwa, M. Nomura, H. Tajima, S. Yoshida, J.M. Dunlea, S.G. Frederiksen, S. Kuramata, B.G. Lundberg, G.A. Oleynik, R. Reibel, K. Moriyama, H. Shibata, G.R. Kalbfleisch, P. Skubic, J.M. Snow, S.E. Willis, O. Kusumoto, T. Okusawa, M. Teranaka, T. Tominaga, T. Yoshida, H. Yuuki, H. Okabe, J. Yokota, M. Kazuno, T. Koya, E. Niu, S. Ogawa, H. Shibuya, S. Watanabe, N. Yasuda, M. Kamiya, Y. Sato, I. Tezuka, M. Yamaki, S.Y. Bahk, and S.K. Kim

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Meson, Branching fraction, Hadron, Analytical chemistry, Nuclear emulsion, Decay chain
Abstract

The relative branching fraction RK = Γ(D0 → K−μ+v)/Γ(D0 → μ−X) has been measured by Fermilab experiment E653, using D0 mesons produced by 600 GeV π−. The semimuonic decay sample of 232 events was identified by the decay chain D ∗+ → D 0 π + , D 0 → μ + h − X , where h is a hadron. The Kμv component was extracted from the joint distribution of these events in the D0 decay variables Mmin and pTh. We find RK = 0.472 ± 0.051 (stat) ± 0.040 (sys), and use a world average of the D0 → Klv branching fraction to obtain the D0 inclusive semimuonic branching fraction B(D0 → μ+X) = (7.67 ± 1.13)%.

Published
1994
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2. Observation of D+ → ρ(770)0μ+v

Author

K. Kodama, N. Ushida, A. Mokhtarani, V.S. Paolone, J.T. Volk, J.O. Wilcox, P.M. Yager, R.M. Edelstein, A.P. Freyberger, D.B. Gibaut, R.J. Lipton, W.R. Nichols, D.M. Potter, J.C. Russ, C. Zhang, Y. Zhang, H.I. Jang, J.Y. Kim, T.I. Kim, I.T. Lim, M.Y. Pac, B.R. Baller, R.J. Stefanski, K. Nakazawa, K.S. Chung, S.H. Chung, D.C. Kim, I.G. Park, M.S. Park, J.S. Song, C.S. Yoon, M. Chikawa, T. Abe, S. Aoki, T. Fujii, G. Fujioka, K. Fujiwara, H. Fukushima, T. Hara, Y. Takahashi, K. Taruma, Y. Tsuzuki, C. Yokoyama, S.D. Chang, B.G. Cheon, J.H. Cho, J.S. Kang, C.O. Kim, K.Y. Kim, T.Y. Kim, J.C. Lee, S.B. Lee, G.Y. Lim, S.W. Nam, T.S. Shin, K.S. Sim, J.K. Woo, Y. Isokane, Y. Tsuneoka, A. Gauthier, K. Hoshino, H. Kitamura, M. Kobayashi, M. Komatsu, M. Miyanishi, K. Nakamura, M. Nakamura, Y. Nakamura, S. Nakanishi, K. Niu, K. Niwa, M. Nomura, K. Okada, H. Tajima, T. Toshitou, S. Yoshida, M. Aryal, J.M. Dunlea, S.G. Frederiksen, S. Kuramata, B.G. Lundberg, G.A. Oleynik, N.W. Reay, K. Reibel, R.A. Sidwell, N.R. Stanton, K. Moriyama, H. Shibata, G.R. Kalbfleisch, P. Skubic, J.M. Smow, S.E. Willis, O. Kusumoto, S. Ohashi, T. Okusawa, M. Teranaka, T. Tominaga, T. Yoshida, H. Yuuki, H. Okabe, J. Yokota, S. Ikegami, M. Kazuno, T. Koya, E. Niu, S. Ogawa, H. Shibuya, S. Watanabe, N. Yasuda, Y. Sato, M. Seshimo, I. Tezuka, S.Y. Bahk, and S.K. Kim

Subjects
Physics, Semileptonic decay, Nuclear and High Energy Physics, Particle physics, Rho meson, Muon, D meson, Analytical chemistry, Elementary particle, lcsh:Physics, lcsh:QC1-999
Abstract

We report the first observation of the Cabibo disfavored semileptonic decay mode D+ → ρ(770)0 μ+v and measure its decay rate relative to the Cabibbo favored mode D + → K ∗ (892) 0 μ + v to be Λ(D + → ρ(770) 0 μ + v Λ(D + → K ∗ (892) 0 μ + v) = 0.044 0.031 −0.025 ( stat. ) ± 0.014 ( syst. ) . The results are compared to theoretical predictions and to previous experimental upper limits.

Published
1993

3. A study of the semimuonic decays of the D

Author

K. Kodama, N. ushida, A. Mokhtarani, V.S. Paolone, J.T. Volk, J.O. Wilcox, P.M. Yager, R.M. Edelstein, A.P. Freyberger, D.B. Gibaut, R.J. Lipton, W.R. Nichols, D.M. Potter, J.S. Russ, C. Zhang, Y. Zhang, H.I. Jang, J.Y. Kim, T.I. Kim, I.T. Lim, M.Y. Pac, B.R. Baller, R.J. Stefanski, K. Nakazawa, K.S. Chung, S.H. Chung, D.C. Kim, I.G. Park, M.S. Park, J.S. Song, C.S. Yoon, M. Chikawa, T. Abe, T. Fujii, G. Fujioka, K. Fujiwara, H. Fukushima, T. Hara, Y. Takahashi, K. Taruma, Y. Tsuzuki, C. Yokoyama, S.D. Chang, B.G. Cheon, J.H. Cho, J.S. Kang, C.O. Kim, K.Y. Kim, T.Y. Kim, J.C. Lee, S.B. Lee, G.Y. Lim, S.W. Nam, T.S. Shin, K.S. Sim, J.K. Woo, Y. Isokane, Y. Tsuneoka, S. Aoki, A. Gauthier, K. Hoshino, H. Kitamura, M. Kobayashi, M. Miyanishi, K. Nakamura, M. Nakamura, Y. Nakamura, S. Nakanishi, K. Niu, K. Niwa, M. Nomura, H. Tajima, S. Yoshida, M. Aryal, J.M. Dunlea, S.G. Frederiksen, S. Kuramata, B.G. Lundberg, G.A. Oleynik, N.W. Reay, K. Reibel, R.A. Sidwell, N.R. Stanton, K. Moriyama, H. Shibata, G.R. Kalbfleisch, P. Skubic, J.M. Snow, S.E. Willis, O. Kusumoto, S. Ohashi, T. Okusawa, M. Teranaka, T. Tominaga, T. Yoshida, H. Yuuki, H. Okabe, J. Yokota, M. Adachi, I. Ikegami, M. Kazuno, E. Niu, H. Shibuya, S. Watanabe, Y. Sato, M. Seshimo, I. Tezuka, S.Y. Bahk, and S.K. Kim

Subjects
Physics, Nuclear and High Energy Physics, Nuclear magnetic resonance, Partial width, Analytical chemistry, Form factor (quantum field theory), Elementary particle, Pseudovector, lcsh:Physics, lcsh:QC1-999
Abstract

We present a study of the Cabibbo-allowed semimuonic decay modes of the DS+ produced in 600 GeV c π − -emulsion interactions. From a signal of 18.7±4.9−0.7+0.4 events in the DS+ → oμ+υ channel, the product of production cross section and partial width is measured with respect to that for D + → K ∗0 μ + υ to be ( σ(D S + ) σ(D + )) . (Λ(D S + → oμ + ν)Λ(D + → K ∗0 μ + ν)) = 0.56 ± 0.14 ± 0.12. The form factor ratios in the decay, obtained by fitting to the decay angles and q2, are A 2 (0) 1 (0) = 2.1 −0.5 +0.6 ± 0.2 and V (0) A 1 (0) = 2.3 −0.9 +1.1 ± 0.4 , where A1 (0) and A2 (0) are the axial vector form factors and V(0) is the vector form factor, evaluated at q2 = 0. The first observation of DS+ → (ημ+υ + η'μ+υ) is also reported, and Γ (D S + → (ημ + υ + η'μ + υ)) Γ (D S + → oμ + υ) is determined to be 3.9 ± 1.6.

Published
1993
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4. Measurement of the branching ratio for

Author

K. Kodama, N. Ushida, A. Mokhtarani, V.S. Paolone, J.T. Volk, J.O. Wilcox, P.M. Yager, R.M. Edelstein, A.P. Freyberger, D.B. Gibaut, R.J. Lipton, W.R. Nichols, D.M. Potter, J.S. Russ, C. Zhang, Y. Zhang, H.I. Jang, J.Y. Kim, T.I. Kim, I.T. Lim, M.Y. Pac, B.R. Baller, R.J. Stefanski, K. Nakazawa, K.S. Chung, S.H. Chung, D.C. Kim, I.G. Park, M.S. Park, J.S. Song, C.S. Yoon, M. Chikawa, T. Abe, T. Fujii, G. Fujioka, K. Fujiwara, H. Fukushima, T. Hara, Y. Takahashi, K. Taruma, Y. Tsuzuki, C. Yokoyama, S.D. Chang, B.G. Cheon, J.H. Cho, J.S. Kang, C.O. Kim, K.Y. Kim, T.Y. Kim, J.C. Lee, S.B. Lee, G.Y. Lim, S.W. Nam, T.S. Shin, K.S. Sim, J.K. Woo, Y. Isokane, Y. Tsuneoka, S. Aoki, A. Gauthier, K. Hoshino, H. Kitamura, M. Kobayashi, M. Miyanishi, K. Nakamura, M. Nakamura, Y. Nakamura, S. Nakanishi, K. Niu, K. Niwa, H. Tajima, J.M. Dunlea, S.G. Frederiksen, S. Kuramata, B.G. Lundberg, G.A. Oleynik, N.W. Reay, K. Reibel, R.A. Sidwell, N.R. Stanton, K. Moriyama, H. Shibata, G.R. Kalbfleisch, P. Skubic, J.M. Snow, S.E. Willis, O. Kusumoto, T. Okusawa, m. Teranaka, T. Tominaga, T. Yoshida, H. Yuuki, H. Okabe, J. Yokota, M. Adachi, M. Kazuno, E. Niu, H. Shibuya, S. Watanabe, I. Ohtsuka, Y. Sato, I. Tezuka, S.Y. Bahk, and S.K. Kim

Subjects
Normalization (statistics), Physics, Nuclear and High Energy Physics, Branching fraction, Analytical chemistry, Nuclear emulsion
Abstract

The branching ratio for the decay mode D + → K ∗0 μ + ν has been measured with two methods. The first uses D0→K−μ+ν for normalization, and yields the result B( D + → K ∗0 μ + ν)=(3.25±0.71±0.75)% . From this method we also obtain the direct measurement Γ( D + → K ∗0 μ + ν)/Γ( D 0 → K − μ + ν)=0.43±0.09±0.09 . The second method uses the mode D+→K−π+π+ for normalization and yields B( D + → K ∗0 μ + ν)=(4.18±0.66±0.96)% . Combining the results of the two methods yields B( D + → K ∗0 μ + ν)=(3.57±0.96)% .

Published
1992
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