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Experimental properties of gluon and quark jets from a point source

Gluon jets are identified in hadronic Z0 decays as all the particles in a hemisphere opposite to a hemisphere containing two tagged quark jets. Gluon jets defined in this manner are equivalent to gluon jets produced from a color singlet point source and thus correspond to the definition employed for...

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Detalles Bibliográficos
Autores principales: Abbiendi, G., Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Batley, J.R., Baumann, S., Bechtluft, J., Behnke, T., Bell, Kenneth Watson, Bella, G., Bellerive, A., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Blobel, V., Bloodworth, I.J., Bock, P., Bohme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Ciocca, C., Clarke, P.E.L., Clay, E., Cohen, I., Conboy, J.E., Cooke, O.C., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Davis, R., De Jong, S., de Roeck, A., Dervan, P., Desch, K., Dienes, B., Dixit, M.S., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Estabrooks, P.G., Etzion, E., Fabbri, F., Fanfani, A., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fleck, I., Folman, R., Frey, A., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon, J., Gascon-Shotkin, S.M., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Gorn, W., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Hanson, G.G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Hargrove, C.K., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hobson, P.R., Hoch, M., Hocker, James Andrew, Hoffman, Kara Dion, Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Imrie, D.C., Ishii, K., Jacob, F.R., Jawahery, A., Jeremie, H., Jimack, M., Jones, C.R., Jovanovic, P., Junk, T.R., Kanzaki, J., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klier, A., Kobayashi, T., Kobel, M., Kokott, T.P., Kolrep, M., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kuhl, T., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Lauber, J., Lautenschlager, S.R., Lawson, I., Layter, J.G., Lee, A.M., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., List, B., Littlewood, C., Lloyd, A.W., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Lu, J., Ludwig, J., Lui, D., Macchiolo, A., Macpherson, A., Mader, W., Mannelli, M., Marcellini, S., Markopoulos, C., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Menke, S., Merritt, F.S., Mes, H., Meyer, J., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mir, R., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Oreglia, M.J., Orito, S., Palinkas, J., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Polok, J., Przybycien, M., Rembser, C., Rick, H., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rosati, S., Roscoe, K., Rossi, A.M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sang, W.M., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schmitt, S., Schoning, A., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Sproston, M., Stahl, A., Stephens, K., Steuerer, J., Stoll, K., Strom, David M., Strohmer, R., Surrow, B., Talbot, S.D., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M.A., Torrence, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turcot, A.S., Turner-Watson, M.F., Ueda, I., Van Kooten, Rick J., Vannerem, P., Verzocchi, M., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Yekutieli, G., Zacek, V., Zer-Zion, D.
Lenguaje:eng
Publicado: 1999
Materias:
Acceso en línea:https://dx.doi.org/10.1007/s100520050628
http://cds.cern.ch/record/381808
_version_ 1780893425364631552
author Abbiendi, G.
Ackerstaff, K.
Alexander, G.
Allison, John
Altekamp, N.
Anderson, K.J.
Anderson, S.
Arcelli, S.
Asai, S.
Ashby, S.F.
Axen, D.
Azuelos, G.
Ball, A.H.
Barberio, E.
Barlow, Roger J.
Batley, J.R.
Baumann, S.
Bechtluft, J.
Behnke, T.
Bell, Kenneth Watson
Bella, G.
Bellerive, A.
Bentvelsen, S.
Bethke, S.
Betts, S.
Biebel, O.
Biguzzi, A.
Blobel, V.
Bloodworth, I.J.
Bock, P.
Bohme, J.
Bonacorsi, D.
Boutemeur, M.
Braibant, S.
Bright-Thomas, P.
Brigliadori, L.
Brown, Robert M.
Burckhart, H.J.
Capiluppi, P.
Carnegie, R.K.
Carter, A.A.
Carter, J.R.
Chang, C.Y.
Charlton, David G.
Chrisman, D.
Ciocca, C.
Clarke, P.E.L.
Clay, E.
Cohen, I.
Conboy, J.E.
Cooke, O.C.
Couyoumtzelis, C.
Coxe, R.L.
Cuffiani, M.
Dado, S.
Dallavalle, G.Marco
Davis, R.
De Jong, S.
de Roeck, A.
Dervan, P.
Desch, K.
Dienes, B.
Dixit, M.S.
Dubbert, J.
Duchovni, E.
Duckeck, G.
Duerdoth, I.P.
Estabrooks, P.G.
Etzion, E.
Fabbri, F.
Fanfani, A.
Fanti, M.
Faust, A.A.
Fiedler, F.
Fierro, M.
Fleck, I.
Folman, R.
Frey, A.
Furtjes, A.
Futyan, D.I.
Gagnon, P.
Gary, J.W.
Gascon, J.
Gascon-Shotkin, S.M.
Gaycken, G.
Geich-Gimbel, C.
Giacomelli, G.
Giacomelli, P.
Gibson, V.
Gibson, W.R.
Gingrich, D.M.
Glenzinski, D.
Goldberg, J.
Gorn, W.
Grandi, C.
Graham, K.
Gross, E.
Grunhaus, J.
Gruwe, M.
Hanson, G.G.
Hansroul, M.
Hapke, M.
Harder, K.
Harel, A.
Hargrove, C.K.
Hauschild, M.
Hawkes, C.M.
Hawkings, R.
Hemingway, R.J.
Herndon, M.
Herten, G.
Heuer, R.D.
Hildreth, M.D.
Hill, J.C.
Hobson, P.R.
Hoch, M.
Hocker, James Andrew
Hoffman, Kara Dion
Homer, R.J.
Honma, A.K.
Horvath, D.
Hossain, K.R.
Howard, R.
Huntemeyer, P.
Igo-Kemenes, P.
Imrie, D.C.
Ishii, K.
Jacob, F.R.
Jawahery, A.
Jeremie, H.
Jimack, M.
Jones, C.R.
Jovanovic, P.
Junk, T.R.
Kanzaki, J.
Karlen, D.
Kartvelishvili, V.
Kawagoe, K.
Kawamoto, T.
Kayal, P.I.
Keeler, R.K.
Kellogg, R.G.
Kennedy, B.W.
Kim, D.H.
Klier, A.
Kobayashi, T.
Kobel, M.
Kokott, T.P.
Kolrep, M.
Komamiya, S.
Kowalewski, Robert V.
Kress, T.
Krieger, P.
von Krogh, J.
Kuhl, T.
Kyberd, P.
Lafferty, G.D.
Landsman, H.
Lanske, D.
Lauber, J.
Lautenschlager, S.R.
Lawson, I.
Layter, J.G.
Lee, A.M.
Lellouch, D.
Letts, J.
Levinson, L.
Liebisch, R.
List, B.
Littlewood, C.
Lloyd, A.W.
Lloyd, S.L.
Loebinger, F.K.
Long, G.D.
Losty, M.J.
Lu, J.
Ludwig, J.
Lui, D.
Macchiolo, A.
Macpherson, A.
Mader, W.
Mannelli, M.
Marcellini, S.
Markopoulos, C.
Martin, A.J.
Martin, J.P.
Martinez, G.
Mashimo, T.
Mattig, Peter
McDonald, W.John
McKenna, J.
Mckigney, E.A.
McMahon, T.J.
McPherson, R.A.
Meijers, F.
Menke, S.
Merritt, F.S.
Mes, H.
Meyer, J.
Michelini, A.
Mihara, S.
Mikenberg, G.
Miller, D.J.
Mir, R.
Mohr, W.
Montanari, A.
Mori, T.
Nagai, K.
Nakamura, I.
Neal, H.A.
Nisius, R.
O'Neale, S.W.
Oakham, F.G.
Odorici, F.
Ogren, H.O.
Oreglia, M.J.
Orito, S.
Palinkas, J.
Pasztor, G.
Pater, J.R.
Patrick, G.N.
Patt, J.
Perez-Ochoa, R.
Petzold, S.
Pfeifenschneider, P.
Pilcher, J.E.
Pinfold, J.
Plane, David E.
Poffenberger, P.
Poli, B.
Polok, J.
Przybycien, M.
Rembser, C.
Rick, H.
Robertson, S.
Robins, S.A.
Rodning, N.
Roney, J.M.
Rosati, S.
Roscoe, K.
Rossi, A.M.
Rozen, Y.
Runge, K.
Runolfsson, O.
Rust, D.R.
Sachs, K.
Saeki, T.
Sahr, O.
Sang, W.M.
Sarkisian, E.K.G.
Sbarra, C.
Schaile, A.D.
Schaile, O.
Scharff-Hansen, P.
Schieck, J.
Schmitt, S.
Schoning, A.
Schroder, Matthias
Schumacher, M.
Schwick, C.
Scott, W.G.
Seuster, R.
Shears, T.G.
Shen, B.C.
Shepherd-Themistocleous, C.H.
Sherwood, P.
Siroli, G.P.
Sittler, A.
Skuja, A.
Smith, A.M.
Snow, G.A.
Sobie, R.
Soldner-Rembold, S.
Spagnolo, S.
Sproston, M.
Stahl, A.
Stephens, K.
Steuerer, J.
Stoll, K.
Strom, David M.
Strohmer, R.
Surrow, B.
Talbot, S.D.
Taras, P.
Tarem, S.
Teuscher, R.
Thiergen, M.
Thomas, J.
Thomson, M.A.
Torrence, E.
Towers, S.
Trigger, I.
Trocsanyi, Z.
Tsur, E.
Turcot, A.S.
Turner-Watson, M.F.
Ueda, I.
Van Kooten, Rick J.
Vannerem, P.
Verzocchi, M.
Voss, H.
Wackerle, F.
Wagner, A.
Ward, C.P.
Ward, D.R.
Watkins, P.M.
Watson, A.T.
Watson, N.K.
Wells, P.S.
Wermes, N.
White, J.S.
Wilson, G.W.
Wilson, J.A.
Wyatt, T.R.
Yamashita, S.
Yekutieli, G.
Zacek, V.
Zer-Zion, D.
author_facet Abbiendi, G.
Ackerstaff, K.
Alexander, G.
Allison, John
Altekamp, N.
Anderson, K.J.
Anderson, S.
Arcelli, S.
Asai, S.
Ashby, S.F.
Axen, D.
Azuelos, G.
Ball, A.H.
Barberio, E.
Barlow, Roger J.
Batley, J.R.
Baumann, S.
Bechtluft, J.
Behnke, T.
Bell, Kenneth Watson
Bella, G.
Bellerive, A.
Bentvelsen, S.
Bethke, S.
Betts, S.
Biebel, O.
Biguzzi, A.
Blobel, V.
Bloodworth, I.J.
Bock, P.
Bohme, J.
Bonacorsi, D.
Boutemeur, M.
Braibant, S.
Bright-Thomas, P.
Brigliadori, L.
Brown, Robert M.
Burckhart, H.J.
Capiluppi, P.
Carnegie, R.K.
Carter, A.A.
Carter, J.R.
Chang, C.Y.
Charlton, David G.
Chrisman, D.
Ciocca, C.
Clarke, P.E.L.
Clay, E.
Cohen, I.
Conboy, J.E.
Cooke, O.C.
Couyoumtzelis, C.
Coxe, R.L.
Cuffiani, M.
Dado, S.
Dallavalle, G.Marco
Davis, R.
De Jong, S.
de Roeck, A.
Dervan, P.
Desch, K.
Dienes, B.
Dixit, M.S.
Dubbert, J.
Duchovni, E.
Duckeck, G.
Duerdoth, I.P.
Estabrooks, P.G.
Etzion, E.
Fabbri, F.
Fanfani, A.
Fanti, M.
Faust, A.A.
Fiedler, F.
Fierro, M.
Fleck, I.
Folman, R.
Frey, A.
Furtjes, A.
Futyan, D.I.
Gagnon, P.
Gary, J.W.
Gascon, J.
Gascon-Shotkin, S.M.
Gaycken, G.
Geich-Gimbel, C.
Giacomelli, G.
Giacomelli, P.
Gibson, V.
Gibson, W.R.
Gingrich, D.M.
Glenzinski, D.
Goldberg, J.
Gorn, W.
Grandi, C.
Graham, K.
Gross, E.
Grunhaus, J.
Gruwe, M.
Hanson, G.G.
Hansroul, M.
Hapke, M.
Harder, K.
Harel, A.
Hargrove, C.K.
Hauschild, M.
Hawkes, C.M.
Hawkings, R.
Hemingway, R.J.
Herndon, M.
Herten, G.
Heuer, R.D.
Hildreth, M.D.
Hill, J.C.
Hobson, P.R.
Hoch, M.
Hocker, James Andrew
Hoffman, Kara Dion
Homer, R.J.
Honma, A.K.
Horvath, D.
Hossain, K.R.
Howard, R.
Huntemeyer, P.
Igo-Kemenes, P.
Imrie, D.C.
Ishii, K.
Jacob, F.R.
Jawahery, A.
Jeremie, H.
Jimack, M.
Jones, C.R.
Jovanovic, P.
Junk, T.R.
Kanzaki, J.
Karlen, D.
Kartvelishvili, V.
Kawagoe, K.
Kawamoto, T.
Kayal, P.I.
Keeler, R.K.
Kellogg, R.G.
Kennedy, B.W.
Kim, D.H.
Klier, A.
Kobayashi, T.
Kobel, M.
Kokott, T.P.
Kolrep, M.
Komamiya, S.
Kowalewski, Robert V.
Kress, T.
Krieger, P.
von Krogh, J.
Kuhl, T.
Kyberd, P.
Lafferty, G.D.
Landsman, H.
Lanske, D.
Lauber, J.
Lautenschlager, S.R.
Lawson, I.
Layter, J.G.
Lee, A.M.
Lellouch, D.
Letts, J.
Levinson, L.
Liebisch, R.
List, B.
Littlewood, C.
Lloyd, A.W.
Lloyd, S.L.
Loebinger, F.K.
Long, G.D.
Losty, M.J.
Lu, J.
Ludwig, J.
Lui, D.
Macchiolo, A.
Macpherson, A.
Mader, W.
Mannelli, M.
Marcellini, S.
Markopoulos, C.
Martin, A.J.
Martin, J.P.
Martinez, G.
Mashimo, T.
Mattig, Peter
McDonald, W.John
McKenna, J.
Mckigney, E.A.
McMahon, T.J.
McPherson, R.A.
Meijers, F.
Menke, S.
Merritt, F.S.
Mes, H.
Meyer, J.
Michelini, A.
Mihara, S.
Mikenberg, G.
Miller, D.J.
Mir, R.
Mohr, W.
Montanari, A.
Mori, T.
Nagai, K.
Nakamura, I.
Neal, H.A.
Nisius, R.
O'Neale, S.W.
Oakham, F.G.
Odorici, F.
Ogren, H.O.
Oreglia, M.J.
Orito, S.
Palinkas, J.
Pasztor, G.
Pater, J.R.
Patrick, G.N.
Patt, J.
Perez-Ochoa, R.
Petzold, S.
Pfeifenschneider, P.
Pilcher, J.E.
Pinfold, J.
Plane, David E.
Poffenberger, P.
Poli, B.
Polok, J.
Przybycien, M.
Rembser, C.
Rick, H.
Robertson, S.
Robins, S.A.
Rodning, N.
Roney, J.M.
Rosati, S.
Roscoe, K.
Rossi, A.M.
Rozen, Y.
Runge, K.
Runolfsson, O.
Rust, D.R.
Sachs, K.
Saeki, T.
Sahr, O.
Sang, W.M.
Sarkisian, E.K.G.
Sbarra, C.
Schaile, A.D.
Schaile, O.
Scharff-Hansen, P.
Schieck, J.
Schmitt, S.
Schoning, A.
Schroder, Matthias
Schumacher, M.
Schwick, C.
Scott, W.G.
Seuster, R.
Shears, T.G.
Shen, B.C.
Shepherd-Themistocleous, C.H.
Sherwood, P.
Siroli, G.P.
Sittler, A.
Skuja, A.
Smith, A.M.
Snow, G.A.
Sobie, R.
Soldner-Rembold, S.
Spagnolo, S.
Sproston, M.
Stahl, A.
Stephens, K.
Steuerer, J.
Stoll, K.
Strom, David M.
Strohmer, R.
Surrow, B.
Talbot, S.D.
Taras, P.
Tarem, S.
Teuscher, R.
Thiergen, M.
Thomas, J.
Thomson, M.A.
Torrence, E.
Towers, S.
Trigger, I.
Trocsanyi, Z.
Tsur, E.
Turcot, A.S.
Turner-Watson, M.F.
Ueda, I.
Van Kooten, Rick J.
Vannerem, P.
Verzocchi, M.
Voss, H.
Wackerle, F.
Wagner, A.
Ward, C.P.
Ward, D.R.
Watkins, P.M.
Watson, A.T.
Watson, N.K.
Wells, P.S.
Wermes, N.
White, J.S.
Wilson, G.W.
Wilson, J.A.
Wyatt, T.R.
Yamashita, S.
Yekutieli, G.
Zacek, V.
Zer-Zion, D.
author_sort Abbiendi, G.
collection CERN
description Gluon jets are identified in hadronic Z0 decays as all the particles in a hemisphere opposite to a hemisphere containing two tagged quark jets. Gluon jets defined in this manner are equivalent to gluon jets produced from a color singlet point source and thus correspond to the definition employed for most theoretical calculations. In a separate stage of the analysis, we select quark jets in a manner to correspond to calculations, as the particles in hemispheres of flavor tagged light quark (uds) events. We present the distributions of rapidity, scaled energy, the logarithm of the momentum, and transverse momentum with respect to the jet axes, for charged particles in these gluon and quark jets. We also examine the charged particle multiplicity distributions of the jets in restricted intervals of rapidity. For soft particles at large transverse momentum, we observe the charged particle multiplicity ratio of gluon to quark jets to be 2.29 +- 0.09 +- 0.15 in agreement with the prediction that this ratio should approximately equal the ratio of QCD color factors, CA/CF = 2.25. The intervals used to define soft particles and large transverse momentum for this result, p<4 GeV/c and 0.8<p_t<3.0 GeV/c, are motivated by the predictions of the Herwig Monte Carlo multihadronic event generator. Additionally, our gluon jet data allow a sensitive test of the phenomenon of non-leading QCD terms known as color reconnection. We test the model of color reconnection implemented in the Ariadne Monte Carlo multihadronic event generator and find it to be disfavored by our data.
id cern-381808
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
record_format invenio
spelling cern-3818082021-10-29T02:13:41Zdoi:10.1007/s100520050628http://cds.cern.ch/record/381808engAbbiendi, G.Ackerstaff, K.Alexander, G.Allison, JohnAltekamp, N.Anderson, K.J.Anderson, S.Arcelli, S.Asai, S.Ashby, S.F.Axen, D.Azuelos, G.Ball, A.H.Barberio, E.Barlow, Roger J.Batley, J.R.Baumann, S.Bechtluft, J.Behnke, T.Bell, Kenneth WatsonBella, G.Bellerive, A.Bentvelsen, S.Bethke, S.Betts, S.Biebel, O.Biguzzi, A.Blobel, V.Bloodworth, I.J.Bock, P.Bohme, J.Bonacorsi, D.Boutemeur, M.Braibant, S.Bright-Thomas, P.Brigliadori, L.Brown, Robert M.Burckhart, H.J.Capiluppi, P.Carnegie, R.K.Carter, A.A.Carter, J.R.Chang, C.Y.Charlton, David G.Chrisman, D.Ciocca, C.Clarke, P.E.L.Clay, E.Cohen, I.Conboy, J.E.Cooke, O.C.Couyoumtzelis, C.Coxe, R.L.Cuffiani, M.Dado, S.Dallavalle, G.MarcoDavis, R.De Jong, S.de Roeck, A.Dervan, P.Desch, K.Dienes, B.Dixit, M.S.Dubbert, J.Duchovni, E.Duckeck, G.Duerdoth, I.P.Estabrooks, P.G.Etzion, E.Fabbri, F.Fanfani, A.Fanti, M.Faust, A.A.Fiedler, F.Fierro, M.Fleck, I.Folman, R.Frey, A.Furtjes, A.Futyan, D.I.Gagnon, P.Gary, J.W.Gascon, J.Gascon-Shotkin, S.M.Gaycken, G.Geich-Gimbel, C.Giacomelli, G.Giacomelli, P.Gibson, V.Gibson, W.R.Gingrich, D.M.Glenzinski, D.Goldberg, J.Gorn, W.Grandi, C.Graham, K.Gross, E.Grunhaus, J.Gruwe, M.Hanson, G.G.Hansroul, M.Hapke, M.Harder, K.Harel, A.Hargrove, C.K.Hauschild, M.Hawkes, C.M.Hawkings, R.Hemingway, R.J.Herndon, M.Herten, G.Heuer, R.D.Hildreth, M.D.Hill, J.C.Hobson, P.R.Hoch, M.Hocker, James AndrewHoffman, Kara DionHomer, R.J.Honma, A.K.Horvath, D.Hossain, K.R.Howard, R.Huntemeyer, P.Igo-Kemenes, P.Imrie, D.C.Ishii, K.Jacob, F.R.Jawahery, A.Jeremie, H.Jimack, M.Jones, C.R.Jovanovic, P.Junk, T.R.Kanzaki, J.Karlen, D.Kartvelishvili, V.Kawagoe, K.Kawamoto, T.Kayal, P.I.Keeler, R.K.Kellogg, R.G.Kennedy, B.W.Kim, D.H.Klier, A.Kobayashi, T.Kobel, M.Kokott, T.P.Kolrep, M.Komamiya, S.Kowalewski, Robert V.Kress, T.Krieger, P.von Krogh, J.Kuhl, T.Kyberd, P.Lafferty, G.D.Landsman, H.Lanske, D.Lauber, J.Lautenschlager, S.R.Lawson, I.Layter, J.G.Lee, A.M.Lellouch, D.Letts, J.Levinson, L.Liebisch, R.List, B.Littlewood, C.Lloyd, A.W.Lloyd, S.L.Loebinger, F.K.Long, G.D.Losty, M.J.Lu, J.Ludwig, J.Lui, D.Macchiolo, A.Macpherson, A.Mader, W.Mannelli, M.Marcellini, S.Markopoulos, C.Martin, A.J.Martin, J.P.Martinez, G.Mashimo, T.Mattig, PeterMcDonald, W.JohnMcKenna, J.Mckigney, E.A.McMahon, T.J.McPherson, R.A.Meijers, F.Menke, S.Merritt, F.S.Mes, H.Meyer, J.Michelini, A.Mihara, S.Mikenberg, G.Miller, D.J.Mir, R.Mohr, W.Montanari, A.Mori, T.Nagai, K.Nakamura, I.Neal, H.A.Nisius, R.O'Neale, S.W.Oakham, F.G.Odorici, F.Ogren, H.O.Oreglia, M.J.Orito, S.Palinkas, J.Pasztor, G.Pater, J.R.Patrick, G.N.Patt, J.Perez-Ochoa, R.Petzold, S.Pfeifenschneider, P.Pilcher, J.E.Pinfold, J.Plane, David E.Poffenberger, P.Poli, B.Polok, J.Przybycien, M.Rembser, C.Rick, H.Robertson, S.Robins, S.A.Rodning, N.Roney, J.M.Rosati, S.Roscoe, K.Rossi, A.M.Rozen, Y.Runge, K.Runolfsson, O.Rust, D.R.Sachs, K.Saeki, T.Sahr, O.Sang, W.M.Sarkisian, E.K.G.Sbarra, C.Schaile, A.D.Schaile, O.Scharff-Hansen, P.Schieck, J.Schmitt, S.Schoning, A.Schroder, MatthiasSchumacher, M.Schwick, C.Scott, W.G.Seuster, R.Shears, T.G.Shen, B.C.Shepherd-Themistocleous, C.H.Sherwood, P.Siroli, G.P.Sittler, A.Skuja, A.Smith, A.M.Snow, G.A.Sobie, R.Soldner-Rembold, S.Spagnolo, S.Sproston, M.Stahl, A.Stephens, K.Steuerer, J.Stoll, K.Strom, David M.Strohmer, R.Surrow, B.Talbot, S.D.Taras, P.Tarem, S.Teuscher, R.Thiergen, M.Thomas, J.Thomson, M.A.Torrence, E.Towers, S.Trigger, I.Trocsanyi, Z.Tsur, E.Turcot, A.S.Turner-Watson, M.F.Ueda, I.Van Kooten, Rick J.Vannerem, P.Verzocchi, M.Voss, H.Wackerle, F.Wagner, A.Ward, C.P.Ward, D.R.Watkins, P.M.Watson, A.T.Watson, N.K.Wells, P.S.Wermes, N.White, J.S.Wilson, G.W.Wilson, J.A.Wyatt, T.R.Yamashita, S.Yekutieli, G.Zacek, V.Zer-Zion, D.Experimental properties of gluon and quark jets from a point sourceParticle Physics - ExperimentGluon jets are identified in hadronic Z0 decays as all the particles in a hemisphere opposite to a hemisphere containing two tagged quark jets. Gluon jets defined in this manner are equivalent to gluon jets produced from a color singlet point source and thus correspond to the definition employed for most theoretical calculations. In a separate stage of the analysis, we select quark jets in a manner to correspond to calculations, as the particles in hemispheres of flavor tagged light quark (uds) events. We present the distributions of rapidity, scaled energy, the logarithm of the momentum, and transverse momentum with respect to the jet axes, for charged particles in these gluon and quark jets. We also examine the charged particle multiplicity distributions of the jets in restricted intervals of rapidity. For soft particles at large transverse momentum, we observe the charged particle multiplicity ratio of gluon to quark jets to be 2.29 +- 0.09 +- 0.15 in agreement with the prediction that this ratio should approximately equal the ratio of QCD color factors, CA/CF = 2.25. The intervals used to define soft particles and large transverse momentum for this result, p<4 GeV/c and 0.8<p_t<3.0 GeV/c, are motivated by the predictions of the Herwig Monte Carlo multihadronic event generator. Additionally, our gluon jet data allow a sensitive test of the phenomenon of non-leading QCD terms known as color reconnection. We test the model of color reconnection implemented in the Ariadne Monte Carlo multihadronic event generator and find it to be disfavored by our data.Gluon jets are identified in hadronic Z0 decays as all the particles in a hemisphere opposite to a hemisphere containing two tagged quark jets. Gluon jets defined in this manner are equivalent to gluon jets produced from a color singlet point source and thus correspond to the definition employed for most theoretical calculations. In a separate stage of the analysis, we select quark jets in a manner to correspond to calculations, as the particles in hemispheres of flavor tagged light quark (uds) events. We present the distributions of rapidity, scaled energy, the logarithm of the momentum, and transverse momentum with respect to the jet axes, for charged particles in these gluon and quark jets. We also examine the charged particle multiplicity distributions of the jets in restricted intervals of rapidity. For soft particles at large transverse momentum, we observe the charged particle multiplicity ratio of gluon to quark jets to be 2.29 +- 0.09 +- 0.15 in agreement with the prediction that this ratio should approximately equal the ratio of QCD color factors, CA/CF = 2.25. The intervals used to define soft particles and large transverse momentum for this result, p<4 GeV/c and 0.8<p_t<3.0 GeV/c, are motivated by the predictions of the Herwig Monte Carlo multihadronic event generator. Additionally, our gluon jet data allow a sensitive test of the phenomenon of non-leading QCD terms known as color reconnection. We test the model of color reconnection implemented in the Ariadne Monte Carlo multihadronic event generator and find it to be disfavored by our data.Gluon jets are identified in hadronic Z0 decays as all the particles in a hemisphere opposite to a hemisphere containing two tagged quark jets. Gluon jets defined in this manner are equivalent to gluon jets produced from a color singlet point source and thus correspond to the definition employed for most theoretical calculations. In a separate stage of the analysis, we select quark jets in a manner to correspond to calculations, as the particles in hemispheres of flavor tagged light quark (uds) events. We present the distributions of rapidity, scaled energy, the logarithm of the momentum, and transverse momentum with respect to the jet axes, for charged particles in these gluon and quark jets. We also examine the charged particle multiplicity distributions of the jets in restricted intervals of rapidity. For soft particles at large transverse momentum, we observe the charged particle multiplicity ratio of gluon to quark jets to be 2.29 +- 0.09 +- 0.15 in agreement with the prediction that this ratio should approximately equal the ratio of QCD color factors, CA/CF = 2.25. The intervals used to define soft particles and large transverse momentum for this result, p<4 GeV/c and 0.8<p_t<3.0 GeV/c, are motivated by the predictions of the Herwig Monte Carlo multihadronic event generator. Additionally, our gluon jet data allow a sensitive test of the phenomenon of non-leading QCD terms known as color reconnection. We test the model of color reconnection implemented in the Ariadne Monte Carlo multihadronic event generator and find it to be disfavored by our data.Gluon jets are identified in hadronic Z0 decays as all the particles in a hemisphere opposite to a hemisphere containing two tagged quark jets. Gluon jets defined in this manner are equivalent to gluon jets produced from a color singlet point source and thus correspond to the definition employed for most theoretical calculations. In a separate stage of the analysis, we select quark jets in a manner to correspond to calculations, as the particles in hemispheres of flavor tagged light quark (uds) events. We present the distributions of rapidity, scaled energy, the logarithm of the momentum, and transverse momentum with respect to the jet axes, for charged particles in these gluon and quark jets. We also examine the charged particle multiplicity distributions of the jets in restricted intervals of rapidity. For soft particles at large transverse momentum, we observe the charged particle multiplicity ratio of gluon to quark jets to be 2.29 +- 0.09 +- 0.15 in agreement with the prediction that this ratio should approximately equal the ratio of QCD color factors, CA/CF = 2.25. The intervals used to define soft particles and large transverse momentum for this result, p<4 GeV/c and 0.8<p_t<3.0 GeV/c, are motivated by the predictions of the Herwig Monte Carlo multihadronic event generator. Additionally, our gluon jet data allow a sensitive test of the phenomenon of non-leading QCD terms known as color reconnection. We test the model of color reconnection implemented in the Ariadne Monte Carlo multihadronic event generator and find it to be disfavored by our data.hep-ex/9903027CERN-EP-99-028CERN-EP-99-028oai:cds.cern.ch:3818081999-02-24
spellingShingle Particle Physics - Experiment
Abbiendi, G.
Ackerstaff, K.
Alexander, G.
Allison, John
Altekamp, N.
Anderson, K.J.
Anderson, S.
Arcelli, S.
Asai, S.
Ashby, S.F.
Axen, D.
Azuelos, G.
Ball, A.H.
Barberio, E.
Barlow, Roger J.
Batley, J.R.
Baumann, S.
Bechtluft, J.
Behnke, T.
Bell, Kenneth Watson
Bella, G.
Bellerive, A.
Bentvelsen, S.
Bethke, S.
Betts, S.
Biebel, O.
Biguzzi, A.
Blobel, V.
Bloodworth, I.J.
Bock, P.
Bohme, J.
Bonacorsi, D.
Boutemeur, M.
Braibant, S.
Bright-Thomas, P.
Brigliadori, L.
Brown, Robert M.
Burckhart, H.J.
Capiluppi, P.
Carnegie, R.K.
Carter, A.A.
Carter, J.R.
Chang, C.Y.
Charlton, David G.
Chrisman, D.
Ciocca, C.
Clarke, P.E.L.
Clay, E.
Cohen, I.
Conboy, J.E.
Cooke, O.C.
Couyoumtzelis, C.
Coxe, R.L.
Cuffiani, M.
Dado, S.
Dallavalle, G.Marco
Davis, R.
De Jong, S.
de Roeck, A.
Dervan, P.
Desch, K.
Dienes, B.
Dixit, M.S.
Dubbert, J.
Duchovni, E.
Duckeck, G.
Duerdoth, I.P.
Estabrooks, P.G.
Etzion, E.
Fabbri, F.
Fanfani, A.
Fanti, M.
Faust, A.A.
Fiedler, F.
Fierro, M.
Fleck, I.
Folman, R.
Frey, A.
Furtjes, A.
Futyan, D.I.
Gagnon, P.
Gary, J.W.
Gascon, J.
Gascon-Shotkin, S.M.
Gaycken, G.
Geich-Gimbel, C.
Giacomelli, G.
Giacomelli, P.
Gibson, V.
Gibson, W.R.
Gingrich, D.M.
Glenzinski, D.
Goldberg, J.
Gorn, W.
Grandi, C.
Graham, K.
Gross, E.
Grunhaus, J.
Gruwe, M.
Hanson, G.G.
Hansroul, M.
Hapke, M.
Harder, K.
Harel, A.
Hargrove, C.K.
Hauschild, M.
Hawkes, C.M.
Hawkings, R.
Hemingway, R.J.
Herndon, M.
Herten, G.
Heuer, R.D.
Hildreth, M.D.
Hill, J.C.
Hobson, P.R.
Hoch, M.
Hocker, James Andrew
Hoffman, Kara Dion
Homer, R.J.
Honma, A.K.
Horvath, D.
Hossain, K.R.
Howard, R.
Huntemeyer, P.
Igo-Kemenes, P.
Imrie, D.C.
Ishii, K.
Jacob, F.R.
Jawahery, A.
Jeremie, H.
Jimack, M.
Jones, C.R.
Jovanovic, P.
Junk, T.R.
Kanzaki, J.
Karlen, D.
Kartvelishvili, V.
Kawagoe, K.
Kawamoto, T.
Kayal, P.I.
Keeler, R.K.
Kellogg, R.G.
Kennedy, B.W.
Kim, D.H.
Klier, A.
Kobayashi, T.
Kobel, M.
Kokott, T.P.
Kolrep, M.
Komamiya, S.
Kowalewski, Robert V.
Kress, T.
Krieger, P.
von Krogh, J.
Kuhl, T.
Kyberd, P.
Lafferty, G.D.
Landsman, H.
Lanske, D.
Lauber, J.
Lautenschlager, S.R.
Lawson, I.
Layter, J.G.
Lee, A.M.
Lellouch, D.
Letts, J.
Levinson, L.
Liebisch, R.
List, B.
Littlewood, C.
Lloyd, A.W.
Lloyd, S.L.
Loebinger, F.K.
Long, G.D.
Losty, M.J.
Lu, J.
Ludwig, J.
Lui, D.
Macchiolo, A.
Macpherson, A.
Mader, W.
Mannelli, M.
Marcellini, S.
Markopoulos, C.
Martin, A.J.
Martin, J.P.
Martinez, G.
Mashimo, T.
Mattig, Peter
McDonald, W.John
McKenna, J.
Mckigney, E.A.
McMahon, T.J.
McPherson, R.A.
Meijers, F.
Menke, S.
Merritt, F.S.
Mes, H.
Meyer, J.
Michelini, A.
Mihara, S.
Mikenberg, G.
Miller, D.J.
Mir, R.
Mohr, W.
Montanari, A.
Mori, T.
Nagai, K.
Nakamura, I.
Neal, H.A.
Nisius, R.
O'Neale, S.W.
Oakham, F.G.
Odorici, F.
Ogren, H.O.
Oreglia, M.J.
Orito, S.
Palinkas, J.
Pasztor, G.
Pater, J.R.
Patrick, G.N.
Patt, J.
Perez-Ochoa, R.
Petzold, S.
Pfeifenschneider, P.
Pilcher, J.E.
Pinfold, J.
Plane, David E.
Poffenberger, P.
Poli, B.
Polok, J.
Przybycien, M.
Rembser, C.
Rick, H.
Robertson, S.
Robins, S.A.
Rodning, N.
Roney, J.M.
Rosati, S.
Roscoe, K.
Rossi, A.M.
Rozen, Y.
Runge, K.
Runolfsson, O.
Rust, D.R.
Sachs, K.
Saeki, T.
Sahr, O.
Sang, W.M.
Sarkisian, E.K.G.
Sbarra, C.
Schaile, A.D.
Schaile, O.
Scharff-Hansen, P.
Schieck, J.
Schmitt, S.
Schoning, A.
Schroder, Matthias
Schumacher, M.
Schwick, C.
Scott, W.G.
Seuster, R.
Shears, T.G.
Shen, B.C.
Shepherd-Themistocleous, C.H.
Sherwood, P.
Siroli, G.P.
Sittler, A.
Skuja, A.
Smith, A.M.
Snow, G.A.
Sobie, R.
Soldner-Rembold, S.
Spagnolo, S.
Sproston, M.
Stahl, A.
Stephens, K.
Steuerer, J.
Stoll, K.
Strom, David M.
Strohmer, R.
Surrow, B.
Talbot, S.D.
Taras, P.
Tarem, S.
Teuscher, R.
Thiergen, M.
Thomas, J.
Thomson, M.A.
Torrence, E.
Towers, S.
Trigger, I.
Trocsanyi, Z.
Tsur, E.
Turcot, A.S.
Turner-Watson, M.F.
Ueda, I.
Van Kooten, Rick J.
Vannerem, P.
Verzocchi, M.
Voss, H.
Wackerle, F.
Wagner, A.
Ward, C.P.
Ward, D.R.
Watkins, P.M.
Watson, A.T.
Watson, N.K.
Wells, P.S.
Wermes, N.
White, J.S.
Wilson, G.W.
Wilson, J.A.
Wyatt, T.R.
Yamashita, S.
Yekutieli, G.
Zacek, V.
Zer-Zion, D.
Experimental properties of gluon and quark jets from a point source
title Experimental properties of gluon and quark jets from a point source
title_full Experimental properties of gluon and quark jets from a point source
title_fullStr Experimental properties of gluon and quark jets from a point source
title_full_unstemmed Experimental properties of gluon and quark jets from a point source
title_short Experimental properties of gluon and quark jets from a point source
title_sort experimental properties of gluon and quark jets from a point source
topic Particle Physics - Experiment
url https://dx.doi.org/10.1007/s100520050628
http://cds.cern.ch/record/381808
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