Polarization and forward-backward asymmetry of Lambda baryons in hadronic Z(0) decays

Ackerstaff, K; Alexander, G; Allison, J; Altekamp, N; Anderson, KJ; Anderson, S; Arcelli, S; Asai, S; Axen, D; Azuelos, G; Ball, AH; Gorn, W; Grandi, C; Gross, E; Grunhaus, J; Gruwe, M; Hajdu, C; Hanson, GG; Hansroul, M; Hapke, M; Hargrove, CK; Barberio, E; Hart, PA; Hartmann, C; Hauschild, M; Hawkes, CM; Hawkins, R; Hemingway, RJ; Herndon, M; Herten, G; Heuer, RD; Hildreth, MD; Barlow, RJ; Hill, JC; Hillier, SJ; Hobson, PR; Homer, RJ; Honma, AK; Horvath, D; Hossain, KR; Howard, R; Huntemeyer, P; Hutchcroft, DE; Bartoldus, R; Igo-Kemenes, P; Imrie, DC; Ingram, MR; Ishii, K; Jawahery, A; Jeffreys, PW; Jeremie, H; Jimack, M; Joly, A; Jones, CR; Batley, JR; Jones, G; Jones, M; Jost, U; Jovanovic, P; Junk, TR; Karlen, D; Kartvelishvili, V; Kawagoe, K; Kawamoto, T; Kayal, PI; Baumann, S; Keeler, RK; Kellogg, RG; Kennedy, BW; Kirk, J; Klier, A; Kluth, S; Kobayashi, T; Kobel, M; Koetke, DS; Kokott, TP; Bechtluft, J; Kolrep, M; Komamiya, S; Kress, T; Krieger, P; von Krogh, J; Kyberd, P; Lafferty, GD; Lahmann, R; Lai, WP; Lamarche, F; Beeston, C; Lanske, D; Lauber, J; Lautenschlager, SR; Layter, JG; Lazic, D; Lee, AM; Lefebvre, E; Lellouch, D; Letts, J; Levinson, L; Behnke, T; Lloyd, SL; Loebinger, FK; Long, GD; Losty, MJ; Ludwig, J; Macchiolo, A; Macpherson, A; Mannelli, M; Marcellini, S; Markus, C; Bell, AN; Martin, AJ; Martin, JP; Martinez, G; Mashimo, T; Mattig, P; McDonald, WJ; McKenna, J; Mckigney, EA; McMahon, TJ; McPherson, RA; Bell, KW; Meijers, F; Menke, S; Merritt, FS; Mes, H; Meyer, J; Michelini, A; Mikenberg, G; Miller, DJ; Mincer, A; Mir, R; Bella, G; Mohr, W; Montanari, A; Mori, T; Morii, M; Muller, U; Mihara, S; Nagai, K; Nakamura, I; Neal, HA; Nellen, B; Bentvelsen, S; Nisius, R; O'Neale, SW; Oakham, FG; Odorici, F; Ogren, HO; Oh, A; Oldershaw, NJ; Oreglia, MJ; Orito, S; Palinkas, J; Bethke, S; Pasztor, G; Pater, JR; Patrick, GN; Patt, J; Pearce, MJ; Perez-Ochoa, R; Petzold, S; Pfeifenschneider, P; Pilcher, JE; Pinfold, J; Biebel, O; Plane, DE; Poffenberger, P; Poli, B; Posthaus, A; Rees, DL; Rigby, D; Robertson, S; Robins, SA; Rodning, N; Roney, JM; Biguzzi, A; Rooke, A; Ros, E; Rossi, AM; Routenburg, P; Rozen, Y; Runge, K; Runolfsson, O; Ruppel, U; Rust, DR; Rylko, R; Bird, SD; Sachs, K; Saeki, T; Sarkisyan, EKG; Sbarra, C; Schaile, AD; Schaile, O; Scharf, F; Scharff-Hansen, P; Schenk, P; Schieck, J; Blobel, V; Schleper, P; Schmitt, B; Schmitt, S; Schoning, A; Schroder, M; Schultz-Coulon, HC; Schumacher, M; Schwick, C; Scott, WG; Shears, TG; Bloodworth, IJ; Shen, BC; Shepherd-Themistocleous, CH; Sherwood, P; Siroli, GP; Sittler, A; Skillman, A; Skuja, A; Smith, AM; Snow, GA; Sobie, R; Bloomer, JE; Soldner-Rembold, S; Springer, RW; Sproston, M; Stephens, K; Steuerer, J; Stockhausen, B; Stoll, K; Strom, D; Szymanski, P; Tafirout, R; Bobinski, M; Talbot, SD; Tanaka, S; Taras, P; Tarem, S; Teuscher, R; Thiergen, M; Thomson, MA; von Torne, E; Towers, S; Trigger, I; Bock, P; Trocsanyi, Z; Tsur, E; Turcot, AS; Turner-Watson, MF; Utzat, P; Van Kooten, R; VanDenPlas, D; Verzocchi, M; Vikas, P; Vokurka, EH; Bonacorsi, D; Voss, H; Wackerle, F; Wagner, A; Ward, CP; Ward, DR; Watkins, PM; Watson, AT; Watson, NK; Wells, PS; Wermes, N; Boutemeur, M; White, JS; Wilkems, B; Wilson, GW; Wilson, JA; Wolf, G; Wyatt, TR; Yamashita, S; Yekutieli, G; Zacek, W; Zer-Zion, D; Bouwens, BT; OPAL Collaboration; Braibant, S; Brigliadori, L; Brown, RM; Burckhart, HJ; Burgard, C; Burgin, R; Capiluppi, P; Carnegie, RK; Carter, AA; Carter, JR; Chang, CY; Charlton, DG; Chrisman, D; Clarke, PEL; Cohen, I; Conboy, JE; Cooke, OC; Cuffani, M; Dado, S; Dallapiccola, C; Dallavalle, GM; Davis, R; De Jong, S; del Pozo, LA; Desch, K; Dienes, B; Dixit, MS; Silva, EDE; Doucet, M; Duchovni, E; Duckeck, G; Duerdoth, IP; Eatough, D; Edwards, JEG; Estabrooks, PG; Evans, HG; Evans, M; Fabbri, F; Fanti, M; Faust, AA; Fiedler, F; Fierro, M; Fischer, HM; Fleck, I; Folman, R; Fong, DG; Foucher, M; Furtjes, A; Futyan, DI; Gagnon, P; Gary, JW; Gascon, J; Gascon-Shotkin, SM; Geddes, NI; Geich-Gimbel, C; Geralis, T; Giacomelli, G; Giacomelli, P; Giacomelli, R; Gibson, V; Gibson, WR; Gingrich, DM; Glenzinski, D; Goldberg, J; Goodrick, MJ

Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/20582

Title:	Polarization and forward-backward asymmetry of Lambda baryons in hadronic Z(0) decays
Authors:	Ackerstaff, K Alexander, G Allison, J Altekamp, N Anderson, KJ Anderson, S Arcelli, S Asai, S Axen, D Azuelos, G Ball, AH Gorn, W Grandi, C Gross, E Grunhaus, J Gruwe, M Hajdu, C Hanson, GG Hansroul, M Hapke, M Hargrove, CK Barberio, E Hart, PA Hartmann, C Hauschild, M Hawkes, CM Hawkins, R Hemingway, RJ Herndon, M Herten, G Heuer, RD Hildreth, MD Barlow, RJ Hill, JC Hillier, SJ Hobson, PR Homer, RJ Honma, AK Horvath, D Hossain, KR Howard, R Huntemeyer, P Hutchcroft, DE Bartoldus, R Igo-Kemenes, P Imrie, DC Ingram, MR Ishii, K Jawahery, A Jeffreys, PW Jeremie, H Jimack, M Joly, A Jones, CR Batley, JR Jones, G Jones, M Jost, U Jovanovic, P Junk, TR Karlen, D Kartvelishvili, V Kawagoe, K Kawamoto, T Kayal, PI Baumann, S Keeler, RK Kellogg, RG Kennedy, BW Kirk, J Klier, A Kluth, S Kobayashi, T Kobel, M Koetke, DS Kokott, TP Bechtluft, J Kolrep, M Komamiya, S Kress, T Krieger, P von Krogh, J Kyberd, P Lafferty, GD Lahmann, R Lai, WP Lamarche, F Beeston, C Lanske, D Lauber, J Lautenschlager, SR Layter, JG Lazic, D Lee, AM Lefebvre, E Lellouch, D Letts, J Levinson, L Behnke, T Lloyd, SL Loebinger, FK Long, GD Losty, MJ Ludwig, J Macchiolo, A Macpherson, A Mannelli, M Marcellini, S Markus, C Bell, AN Martin, AJ Martin, JP Martinez, G Mashimo, T Mattig, P McDonald, WJ McKenna, J Mckigney, EA McMahon, TJ McPherson, RA Bell, KW Meijers, F Menke, S Merritt, FS Mes, H Meyer, J Michelini, A Mikenberg, G Miller, DJ Mincer, A Mir, R Bella, G Mohr, W Montanari, A Mori, T Morii, M Muller, U Mihara, S Nagai, K Nakamura, I Neal, HA Nellen, B Bentvelsen, S Nisius, R O'Neale, SW Oakham, FG Odorici, F Ogren, HO Oh, A Oldershaw, NJ Oreglia, MJ Orito, S Palinkas, J Bethke, S Pasztor, G Pater, JR Patrick, GN Patt, J Pearce, MJ Perez-Ochoa, R Petzold, S Pfeifenschneider, P Pilcher, JE Pinfold, J Biebel, O Plane, DE Poffenberger, P Poli, B Posthaus, A Rees, DL Rigby, D Robertson, S Robins, SA Rodning, N Roney, JM Biguzzi, A Rooke, A Ros, E Rossi, AM Routenburg, P Rozen, Y Runge, K Runolfsson, O Ruppel, U Rust, DR Rylko, R Bird, SD Sachs, K Saeki, T Sarkisyan, EKG Sbarra, C Schaile, AD Schaile, O Scharf, F Scharff-Hansen, P Schenk, P Schieck, J Blobel, V Schleper, P Schmitt, B Schmitt, S Schoning, A Schroder, M Schultz-Coulon, HC Schumacher, M Schwick, C Scott, WG Shears, TG Bloodworth, IJ Shen, BC Shepherd-Themistocleous, CH Sherwood, P Siroli, GP Sittler, A Skillman, A Skuja, A Smith, AM Snow, GA Sobie, R Bloomer, JE Soldner-Rembold, S Springer, RW Sproston, M Stephens, K Steuerer, J Stockhausen, B Stoll, K Strom, D Szymanski, P Tafirout, R Bobinski, M Talbot, SD Tanaka, S Taras, P Tarem, S Teuscher, R Thiergen, M Thomson, MA von Torne, E Towers, S Trigger, I Bock, P Trocsanyi, Z Tsur, E Turcot, AS Turner-Watson, MF Utzat, P Van Kooten, R VanDenPlas, D Verzocchi, M Vikas, P Vokurka, EH Bonacorsi, D Voss, H Wackerle, F Wagner, A Ward, CP Ward, DR Watkins, PM Watson, AT Watson, NK Wells, PS Wermes, N Boutemeur, M White, JS Wilkems, B Wilson, GW Wilson, JA Wolf, G Wyatt, TR Yamashita, S Yekutieli, G Zacek, W Zer-Zion, D Bouwens, BT OPAL Collaboration Braibant, S Brigliadori, L Brown, RM Burckhart, HJ Burgard, C Burgin, R Capiluppi, P Carnegie, RK Carter, AA Carter, JR Chang, CY Charlton, DG Chrisman, D Clarke, PEL Cohen, I Conboy, JE Cooke, OC Cuffani, M Dado, S Dallapiccola, C Dallavalle, GM Davis, R De Jong, S del Pozo, LA Desch, K Dienes, B Dixit, MS Silva, EDE Doucet, M Duchovni, E Duckeck, G Duerdoth, IP Eatough, D Edwards, JEG Estabrooks, PG Evans, HG Evans, M Fabbri, F Fanti, M Faust, AA Fiedler, F Fierro, M Fischer, HM Fleck, I Folman, R Fong, DG Foucher, M Furtjes, A Futyan, DI Gagnon, P Gary, JW Gascon, J Gascon-Shotkin, SM Geddes, NI Geich-Gimbel, C Geralis, T Giacomelli, G Giacomelli, P Giacomelli, R Gibson, V Gibson, WR Gingrich, DM Glenzinski, D Goldberg, J Goodrick, MJ
Keywords:	DETECTOR;LEP;LUND MONTE-CARLO;E+E-PHYSICS;JET FRAGMENTATION
Issue Date:	1-Mar-1998
Publisher:	Springer Verlag
Citation:	European Physical Journal C, 1998, 2 (1), pp. 49 - 59
Abstract:	The longitudinal polarization, the transverse polarization, and the forward-backward asymmetry of A baryons, have been measured using a sample of 4.34 million hadronic Z(0) decays collected with the OPAL detector at LEP between 1990 and 1995. These results are important as an aid to the understanding of hadronization mechanisms. Significant longitudinal polarization has been observed at intermediate and high momentum. For x(E) (= 2(Lambda)/root s) > 0.3, the longitudinal polarization has been measured to be -32.9 +/- 5.5 (stat) +/- 5.2 (syst)%. We have observed no transverse polarization A significant forward backward asymmetry has been measured and can be described by a JETSET model.
URI:	http://bura.brunel.ac.uk/handle/2438/20582
DOI:	http://dx.doi.org/10.1007/s100520050123
ISSN:	1434-6044 http://dx.doi.org/10.1007/s100520050123
Appears in Collections:	Dept of Mechanical and Aerospace Engineering Research Papers

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