Search for Anomalous Production of Di-lepton Events with Missing Transverse Momentum in e^+e^- Collisions at sqrt{s} = 161 and 172 GeV

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

Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/21541

Title:	Search for Anomalous Production of Di-lepton Events with Missing Transverse Momentum in e^+e^- Collisions at sqrt{s} = 161 and 172 GeV
Other Titles:	Search for anomalous production of di-lepton events with missing transverse momentum in e(+)e(-) collisions at root s = 161 and 172 GeV
Authors:	Ackerstaff, K Alexander, G Allison, J Altekamp, N Anderson, KJ Anderson, S Arcelli, S Asai, S Axen, D Azuelos, G Ball, AH Bock, P Tsur, E Turcot, AS Turner-Watson, MF Marcellini, S Gibson, V Utzat, P Van Kooten, R Verzocchi, M Layter, JG Poli, B Bell, AN Vikas, P Vokurka, EH Hawkes, CM Voss, H Wackerle, F Bonacorsi, D Gibson, WR Wagner, A Markus, C Posthaus, A Wilkens, B Ward, CP OPAL Collaboration Bouwens, BT Braibant, S Brigliadori, L Brown, RM Burckhart, HJ Burgard, C Gingrich, DM Rees, DL Burgin, R Futyan, DI Herndon, M Rust, DR Capiluppi, P Gorn, W Carnegie, RK Carter, AA Carter, JR Chang, CY Rigby, D Charlton, DG McKenna, J Bell, KW Chrisman, D Clarke, PEL Cohen, I Rylko, R Conboy, JE Herten, G Martin, JP Hanson, GG Cooke, OC Cuffiani, M Dado, S Lazic, D Glenzinski, D Dallapiccola, C Dallavalle, GM Davis, R De Jong, S Sachs, K Wyatt, TR del Pozo, LA Desch, K Dienes, B Martinez, G Lee, AM Heuer, RD Goldberg, J Dixit, MS Silva, EDE Doucet, M Robertson, S Duchovni, E Duckeck, G Bird, SD Duerdoth, IP Eatough, D Lefebvre, E Edwards, JEG Estabrooks, PG Watkins, PM Mashimo, T Robins, SA Evans, HG Hildreth, MD Evans, M Fabbri, F Fanti, M Saeki, T Lellouch, D Faust, AA Fiedler, F Fierro, M Rodning, N Hapke, M Fischer, HM Fleck, I Mattig, P Folman, R Fong, DG Barlow, RJ Letts, J Foucher, M Sarkisyan, EKG Geralis, T Furtjes, A Goodrick, MJ Hillier, SJ Hobson, PR Homer, RJ Honma, AK Horvath, D Hossain, KR Levinson, L Howard, R Lafferty, GD Mckigney, EA Watson, AT Huntemeyer, P Long, GD Hutchcroft, DE Bartoldus, R Igo-Kemenes, P Imrie, DC Ingram, MR Schieck, J Hargrove, CK Ishii, K Jawahery, A Jeffreys, PW Watson, NK Jeremie, H McMahon, TJ Schaile, AD Jimack, M Joly, A Jones, CR Roney, JM Lloyd, SL Batley, JR Jones, G Jones, M Jost, U Wells, PS Jovanovic, P Junk, TR Karlen, D Schaile, O Rooke, A McPherson, RA Behnke, T Kartvelishvili, V Kawagoe, K Kawamoto, T Kayal, PI Baumann, S Hawkings, R Keeler, RK Kellogg, RG Biguzzi, A Kennedy, BW Kirk, J Gagnon, P Scharf, F Klier, A Meijers, F Kluth, S Kobayashi, T Kobel, M Wermes, N Ros, E Koetke, DS Kokott, TP Bechtluft, J Martin, AJ Kolrep, M Komamiya, S Scharff-Hansen, P Kress, T Krieger, P Grandi, C Rossi, AM von Krogh, J White, JS Kyberd, P Loebinger, FK Menke, S Merritt, FS Mes, H Meyer, J Michelini, A Mikenberg, G Routenburg, P Miller, DJ Schleper, P Gary, JW Mincer, A Runolfsson, O Mir, R Gross, E Mohr, W Bella, G Montanari, A Yamashita, S Mori, T Morii, M Muller, U Gascon, J Mihara, S Blobel, V Boutemeur, M Nagai, K Nakamura, I Neal, HA Rozen, Y Grunhaus, J Nellen, B Nisius, R Bentvelsen, S Gascon-Shotkin, SM O'Neale, SW Oakham, FG Odorici, F Wilson, GW Schmitt, B Hansroul, M Ogren, HO Oh, A Oldershaw, NJ Oreglia, MJ Gruwe, M McDonald, WJ Orito, S Palinkas, J Pasztor, G Bethke, S Lahmann, R Wilson, JA Pater, JR Schmitt, S Patrick, GN Patt, J Pearce, MJ Geddes, NI Perez-Ochoa, R Petzold, S Hajdu, C Sbarra, C Pfeifenschneider, P Pilcher, JE Wolf, G Pinfold, J Plane, DE Losty, MJ Biebel, O Geich-Gimbel, C Poffenberger, P Runge, K Schoning, A Schroder, M Schultz-Coulon, HC Schumacher, M Schwick, C Scott, WG Shears, TG Yekutieli, G Lai, WP Shen, BC Ward, DR Bloodworth, IJ Ludwig, J Shepherd-Themistocleous, CH Barberio, E Sherwood, P Siroli, GP Sittler, A Skillman, A Lanske, D Skuja, A Hemingway, RJ Hill, JC Smith, AM Snow, GA Sobie, R Macchiolo, A Soldner-Rembold, S Bloomer, JE Hart, PA Beeston, C Springer, RW Sproston, M Stephens, K Giacomelli, G Zacek, V Steuerer, J Stockhausen, B Stoll, K Strom, D Macpherson, A Schenk, P Szymanski, P Tafirout, R Talbot, SD Hartmann, C Giacomelli, P Bobinski, M Zer-Zion, D Tanaka, S Taras, P Tarem, S Lauber, J Teuscher, R Thiergen, M Mannelli, M Thomson, MA von Torne, E Giacomelli, R Towers, S Trigger, L Ruppel, U Hauschild, M Lautenschlager, SR Trocsanyi, Z
Keywords:	microvertex detector;high-energies;Monte-Carlo program;OPAL
Issue Date:	1998
Publisher:	Springer
Citation:	The OPAL Collaboration and Ackerstaff, K. et al. (1998) 'Search for anomalous production of di-lepton events with missing transverse momentum in e(+)e(-) collisions at root s = 161 and 172 GeV', European Physical Journal C, 4 (1), pp. 47 - 74. doi: 10.1007/PL00021655.
Abstract:	Events containing a pair of charged leptons and significant missing transverse momentum are selected from a data sample corresponding to a total integrated luminosity of 20.6 pb^-1 at centre-of-mass energies of 161 GeV and 172 GeV. The observed number of events, four at 161 GeV and nine at 172 GeV, is consistent with the number expected from Standard Model processes, predominantly arising from W+W- production with each W decaying leptonically. This topology is also an experimental signature for the pair production of new particles that decay to a charged lepton accompanied by one or more invisible particles. Further event selection criteria are described that optimise the sensitivity to particular new physics channels. No evidence for new phenomena is observed and limits on the production of scalar charged lepton pairs and other new particles are presented.
Description:	A preprint version of the article is availalble at arXiv:hep-ex/9710010v1, https://arxiv.org/abs/hep-ex/9710010v1 . Comments: 61 pages, LaTeX, uses a4p.sty, 23 eps figures included, submitted to Zeit. f. Physik C. Report number: CERN-PPE/97-124.
URI:	https://bura.brunel.ac.uk/handle/2438/21541
DOI:	https://doi.org/10.1007/PL00021655
ISSN:	1434-6044
Appears in Collections:	Dept of Electronic and Electrical Engineering Research Papers

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