Evidence for penguin-diagram decays: First observation of [ital B][r arrow][ital K][sup *](892)[gamma]
Abstract
We have observed the decays [ital B][sup 0][r arrow][ital K][sup *](892)[sup 0][gamma] and [ital B][sup [minus]][r arrow][ital K][sup *](892)[sup [minus]][gamma], which are evidence for the quark-level process [ital b][r arrow][ital s][gamma]. The average branching fraction is (4.5[plus minus]1.5[plus minus]0.9)[times]10[sup [minus]5]. This value is consistent with standard model predictions from electromagnetic penguin diagrams.
- Authors:
- more »
- Publication Date:
- OSTI Identifier:
- 6216309
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review Letters; (United States)
- Additional Journal Information:
- Journal Volume: 71:5; Journal ID: ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B NEUTRAL MESONS; ELECTROMAGNETIC PARTICLE DECAY; K -892 MESONS; BRANCHING RATIO; CP INVARIANCE; PHOTONS; STANDARD MODEL; VIOLATIONS; B MESONS; BEAUTY PARTICLES; BOSONS; DECAY; ELEMENTARY PARTICLES; HADRONS; INVARIANCE PRINCIPLES; MASSLESS PARTICLES; MATHEMATICAL MODELS; MESONS; PARTICLE DECAY; PARTICLE MODELS; PSEUDOSCALAR MESONS; STRANGE MESONS; STRANGE PARTICLES; UNIFIED GAUGE MODELS; VECTOR MESONS; 662390* - Electromagnetic Processes & Properties- (1992-); 662420 - Properties of Mesons & Meson Resonances- (1992-)
Citation Formats
Ammar, R, Ball, S, Baringer, P, Coppage, D, Copty, N, Davis, R, Hancock, N, Kelly, M, Kwak, N, Lam, H, Kubota, Y, Lattery, M, Nelson, J K, Patton, S, Perticone, D, Poling, R, Savinov, V, Schrenk, S, Wang, R, Alam, M S, Kim, I J, Nemati, B, O'Neill, J J, Severini, H, Sun, C R, Zoeller, M M, Crawford, G, Daubenmeir, M, Fulton, R, Fujino, D, Gan, K K, Honscheid, K, Kagan, H, Kass, R, Lee, J, Malchow, R, Morrow, F, Skovpen, Y, Sung, M, White, C, Whitmore, J, Wilson, P, Butler, F, Fu, X, Kalbfleisch, G, Lambrecht, M, Ross, W R, Skubic, P, Snow, J, Wang, P L, Wood, M, Bortoletto, D, Brown, D N, Fast, J, McIlwain, R L, Miao, T, Miller, D H, Modesitt, M, Schaffner, S F, Shibata, E I, Shipsey, I P.J., Wang, P N, Battle, M, Ernst, J, Kroha, H, Roberts, S, Sparks, K, Thorndike, E H, Wang, C H, Dominick, J, Sanghera, S, Skwarnicki, T, Stroynowski, R, Artuso, M, He, D, Goldberg, M, Horwitz, N, Kennett, R, Moneti, G C, Muh,, and CLEO Collaboration). Evidence for penguin-diagram decays: First observation of [ital B][r arrow][ital K][sup *](892)[gamma]. United States: N. p., 1993.
Web. doi:10.1103/PhysRevLett.71.674.
Ammar, R, Ball, S, Baringer, P, Coppage, D, Copty, N, Davis, R, Hancock, N, Kelly, M, Kwak, N, Lam, H, Kubota, Y, Lattery, M, Nelson, J K, Patton, S, Perticone, D, Poling, R, Savinov, V, Schrenk, S, Wang, R, Alam, M S, Kim, I J, Nemati, B, O'Neill, J J, Severini, H, Sun, C R, Zoeller, M M, Crawford, G, Daubenmeir, M, Fulton, R, Fujino, D, Gan, K K, Honscheid, K, Kagan, H, Kass, R, Lee, J, Malchow, R, Morrow, F, Skovpen, Y, Sung, M, White, C, Whitmore, J, Wilson, P, Butler, F, Fu, X, Kalbfleisch, G, Lambrecht, M, Ross, W R, Skubic, P, Snow, J, Wang, P L, Wood, M, Bortoletto, D, Brown, D N, Fast, J, McIlwain, R L, Miao, T, Miller, D H, Modesitt, M, Schaffner, S F, Shibata, E I, Shipsey, I P.J., Wang, P N, Battle, M, Ernst, J, Kroha, H, Roberts, S, Sparks, K, Thorndike, E H, Wang, C H, Dominick, J, Sanghera, S, Skwarnicki, T, Stroynowski, R, Artuso, M, He, D, Goldberg, M, Horwitz, N, Kennett, R, Moneti, G C, Muh,, & CLEO Collaboration). Evidence for penguin-diagram decays: First observation of [ital B][r arrow][ital K][sup *](892)[gamma]. United States. https://doi.org/10.1103/PhysRevLett.71.674
Ammar, R, Ball, S, Baringer, P, Coppage, D, Copty, N, Davis, R, Hancock, N, Kelly, M, Kwak, N, Lam, H, Kubota, Y, Lattery, M, Nelson, J K, Patton, S, Perticone, D, Poling, R, Savinov, V, Schrenk, S, Wang, R, Alam, M S, Kim, I J, Nemati, B, O'Neill, J J, Severini, H, Sun, C R, Zoeller, M M, Crawford, G, Daubenmeir, M, Fulton, R, Fujino, D, Gan, K K, Honscheid, K, Kagan, H, Kass, R, Lee, J, Malchow, R, Morrow, F, Skovpen, Y, Sung, M, White, C, Whitmore, J, Wilson, P, Butler, F, Fu, X, Kalbfleisch, G, Lambrecht, M, Ross, W R, Skubic, P, Snow, J, Wang, P L, Wood, M, Bortoletto, D, Brown, D N, Fast, J, McIlwain, R L, Miao, T, Miller, D H, Modesitt, M, Schaffner, S F, Shibata, E I, Shipsey, I P.J., Wang, P N, Battle, M, Ernst, J, Kroha, H, Roberts, S, Sparks, K, Thorndike, E H, Wang, C H, Dominick, J, Sanghera, S, Skwarnicki, T, Stroynowski, R, Artuso, M, He, D, Goldberg, M, Horwitz, N, Kennett, R, Moneti, G C, Muh,, and CLEO Collaboration). 1993.
"Evidence for penguin-diagram decays: First observation of [ital B][r arrow][ital K][sup *](892)[gamma]". United States. https://doi.org/10.1103/PhysRevLett.71.674.
@article{osti_6216309,
title = {Evidence for penguin-diagram decays: First observation of [ital B][r arrow][ital K][sup *](892)[gamma]},
author = {Ammar, R and Ball, S and Baringer, P and Coppage, D and Copty, N and Davis, R and Hancock, N and Kelly, M and Kwak, N and Lam, H and Kubota, Y and Lattery, M and Nelson, J K and Patton, S and Perticone, D and Poling, R and Savinov, V and Schrenk, S and Wang, R and Alam, M S and Kim, I J and Nemati, B and O'Neill, J J and Severini, H and Sun, C R and Zoeller, M M and Crawford, G and Daubenmeir, M and Fulton, R and Fujino, D and Gan, K K and Honscheid, K and Kagan, H and Kass, R and Lee, J and Malchow, R and Morrow, F and Skovpen, Y and Sung, M and White, C and Whitmore, J and Wilson, P and Butler, F and Fu, X and Kalbfleisch, G and Lambrecht, M and Ross, W R and Skubic, P and Snow, J and Wang, P L and Wood, M and Bortoletto, D and Brown, D N and Fast, J and McIlwain, R L and Miao, T and Miller, D H and Modesitt, M and Schaffner, S F and Shibata, E I and Shipsey, I P.J. and Wang, P N and Battle, M and Ernst, J and Kroha, H and Roberts, S and Sparks, K and Thorndike, E H and Wang, C H and Dominick, J and Sanghera, S and Skwarnicki, T and Stroynowski, R and Artuso, M and He, D and Goldberg, M and Horwitz, N and Kennett, R and Moneti, G C and Muh, and CLEO Collaboration)},
abstractNote = {We have observed the decays [ital B][sup 0][r arrow][ital K][sup *](892)[sup 0][gamma] and [ital B][sup [minus]][r arrow][ital K][sup *](892)[sup [minus]][gamma], which are evidence for the quark-level process [ital b][r arrow][ital s][gamma]. The average branching fraction is (4.5[plus minus]1.5[plus minus]0.9)[times]10[sup [minus]5]. This value is consistent with standard model predictions from electromagnetic penguin diagrams.},
doi = {10.1103/PhysRevLett.71.674},
url = {https://www.osti.gov/biblio/6216309},
journal = {Physical Review Letters; (United States)},
issn = {0031-9007},
number = ,
volume = 71:5,
place = {United States},
year = {Mon Aug 02 00:00:00 EDT 1993},
month = {Mon Aug 02 00:00:00 EDT 1993}
}
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