A study of muon pair production and evidence for tau pair production in photon-photon collisions at LEP

R. Akers; G. Alexander; J. Allison; K. J. Anderson; S. Arcelli; A. Astbury; D. Axen; G. Azuelos; J. T.M. Baines; A. H. Ball; J. Banks; R. J. Barlow; S. Barnett; R. Bartoldus; J. R. Batley; G. Beaudoin; A. Beck; G. A. Beck; J. Becker; C. Beeston; T. Behnke; K. W. Bell; G. Bella; P. Bentkowski; P. Berlich; S. Bethke; O. Biebel; I. J. Bloodworth; P. Bock; B. Boden; H. M. Bosch; M. Boutemeur; H. Breuker; P. Bright-Thomas; R. M. Brown; A. Buijs; H. J. Burckhart; C. Burgard; P. Capiluppi; R. K. Carnegie; A. A. Carter; J. R. Carter; C. Y. Chang; D. G. Charlton; S. L. Chu; P. E.L. Clarke; J. C. Clayton; I. Cohen; J. E. Conboy; M. Cooper; M. Coupland; M. Cuffiani; S. Dado; G. M. Dallavalle; S. De Jong; L. A. del Pozo; H. Deng; A. Dieckmann; M. Dittmar; M. S. Dixit; E. do Couto e Silva; J. E. Duboscq; E. Duchovni; G. Duckeck; I. P. Duerdoth; D. J.P. Dumas; P. A. Elcombe; P. G. Estabrooks; E. Etzion; H. G. Evans; F. Fabbri; B. Fabbro; M. Fierro; M. Fincke-Keeler; H. M. Fischer; D. G. Fong; M. Foucher; A. Gaidot; J. W. Gary; J. Gascon; N. I. Geddes; C. Geich-Gimbel; S. W. Gensler; F. X. Gentit; G. Giacomelli; R. Giacomelli; V. Gibson; W. R. Gibson; J. D. Gillies; J. Goldberg; D. M. Gingrich; M. J. Goodrick; W. Gorn; C. Grandi; F. C. Grant; J. Hagemann; G. G. Hanson; M. Hansroul; C. K. Hargrove; P. F. Harrison; J. Hart; P. M. Hattersley; M. Hauschild; C. M. Hawkes; E. Heflin; R. J. Hemingway; G. Herten; R. D. Heuer; J. C. Hill; S. J. Hillier; T. Hilse; D. A. Hinshaw; J. D. Hobbs; P. R. Hobson; D. Hochman; R. J. Homer; A. K. Honma; R. E. Hughes-Jones; R. Humbert; P. Igo-Kemenes; H. Ihssen; D. C. Imrie; A. C. Janissen; A. Jawahery; P. W. Jeffreys; H. Jeremie; M. Jimack; M. Jones; R. W.L. Jones; P. Jovanovic; C. Jui; D. Karlen; K. Kawagoe; T. Kawamoto; R. K. Keeler; R. G. Kellogg; B. W. Kennedy; J. King; S. Kluth; T. Kobayashi; D. S. Koetke; T. P. Kokott; S. Komamiya; J. F. Kral; R. Kowalewski; J. von Krogh; J. Kroll; P. Kyberd; G. D. Lafferty; H. Lafoux; R. Lahmann; J. Lauber; J. G. Layter; P. Leblanc; A. M. Lee; E. Lefebvre; M. H. Lehto; D. Lellouch; C. Leroy; J. Letts; L. Levinson; S. L. Lloyd; F. K. Loebinger; J. M. Lorah; B. Lorazo; M. J. Losty; X. C. Lou; J. Ludwig; A. Luig; M. Mannelli; S. Marcellini; C. Markus; A. J. Martin; J. P. Martin; T. Mashimo; P. Mättig; U. Maur; J. McKenna; T. J. McMahon; J. R. McNutt; F. Meijers; D. Menszner; F. S. Merritt; H. Mes; A. Michelini; R. P. Middleton; G. Mikenberg; J. Mildenberger; D. J. Miller; R. Mir; W. Mohr; C. Moisan; A. Montanari; T. Mori; M. Mori; U. Müller; B. Nellen; H. H. Nguyen; S. W. O'Neale; F. G. Oakham; F. Odorici; H. O. Ogren; C. J. Oram; M. J. Oreglia; S. Orito; J. P. Pansart; B. Panzer-Steindel; P. Paschievici; G. N. Patrick; N. Paz-Jaoshvili; M. J. Pearce; P. Pfister; J. E. Pilcher; J. Pinfold; D. Pitman; D. E. Plane; P. Poffenberger; B. Poli; T. W. Pritchard; H. Przysiezniak; G. Quast; M. W. Redmond; D. L. Rees; G. E. Richards; M. Rison; S. A. Robins; D. Robinson; A. Rollnik; J. M. Roney; E. Ros; S. Rossberg; A. M. Rossi; M. Rosvick; P. Routenburg; K. Runge; O. Runolfsson; D. R. Rust; M. Sasaki; C. Sbarra; A. D. Schaile; O. Schaile; W. Schappert; F. Scharf; P. Scharff-Hansen; P. Schenk; B. Schmitt; H. von der Schmitt; M. Schröder; C. Schwick; J. Schwiening; W. G. Scott; M. Settles; T. G. Shears; B. C. Shen; C. H. Shepherd-Themistocleous; P. Sherwood; G. P. Siroli; A. Skillman; A. Skuja; A. M. Smith; T. J. Smith; G. A. Snow; R. Sobie; R. W. Springer; M. Sproston; A. Stahl; C. Stegmann; K. Stephens; J. Steuerer; R. Ströhmer; D. Strom; H. Takeda; T. Takeshita; S. Tarem; M. Tecchio; P. Teixeira-Dias; N. Tesch; M. A. Thomson; E. Torrente-Lujan; S. Towers; G. Transtromer; N. J. Tresilian; T. Tsukamoto; M. F. Turner; D. Van den plas; R. Van Kooten; G. J. VanDalen; G. Vasseur; A. Wagner; D. L. Wagner; C. Wahl; C. P. Ward; D. R. Ward; P. M. Watkins; A. T. Watson; N. K. Watson; M. Weber; P. Weber; P. S. Wells; N. Wermes; M. A. Whalley; B. Wilkens; G. W. Wilson; J. A. Wilson; V. H. Winterer; T. Wlodek; G. Wolf; S. Wotton; T. R. Wyatt; R. Yaari; A. Yeaman; G. Yekutieli; M. Yurko; W. Zeuner; G. T. Zorn

doi:10.1007/BF01558388

A study of muon pair production and evidence for tau pair production in photon-photon collisions at LEP

R. Akers
, G. Alexander
, J. Allison
, K. J. Anderson
, S. Arcelli
, A. Astbury
, D. Axen
, G. Azuelos
, J. T.M. Baines
, A. H. Ball
, J. Banks
, R. J. Barlow
, S. Barnett
, R. Bartoldus
, J. R. Batley
, G. Beaudoin
, A. Beck
, G. A. Beck
, J. Becker
, C. Beeston

T. Behnke, K. W. Bell, G. Bella, P. Bentkowski, P. Berlich, S. Bethke, O. Biebel, I. J. Bloodworth, P. Bock, B. Boden, H. M. Bosch, M. Boutemeur, H. Breuker, P. Bright-Thomas, R. M. Brown, A. Buijs, H. J. Burckhart, C. Burgard, P. Capiluppi, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, S. L. Chu, P. E.L. Clarke, J. C. Clayton, I. Cohen, J. E. Conboy, M. Cooper, M. Coupland, M. Cuffiani, S. Dado, G. M. Dallavalle, S. De Jong, L. A. del Pozo, H. Deng, A. Dieckmann, M. Dittmar, M. S. Dixit, E. do Couto e Silva, J. E. Duboscq, E. Duchovni, G. Duckeck, I. P. Duerdoth, D. J.P. Dumas, P. A. Elcombe, P. G. Estabrooks, E. Etzion, H. G. Evans, F. Fabbri, B. Fabbro, M. Fierro, M. Fincke-Keeler, H. M. Fischer, D. G. Fong, M. Foucher, A. Gaidot, J. W. Gary, J. Gascon, N. I. Geddes, C. Geich-Gimbel, S. W. Gensler, F. X. Gentit, G. Giacomelli, R. Giacomelli, V. Gibson, W. R. Gibson, J. D. Gillies, J. Goldberg, D. M. Gingrich, M. J. Goodrick, W. Gorn, C. Grandi, F. C. Grant, J. Hagemann, G. G. Hanson, M. Hansroul, C. K. Hargrove, P. F. Harrison, J. Hart, P. M. Hattersley, M. Hauschild, C. M. Hawkes, E. Heflin, R. J. Hemingway, G. Herten, R. D. Heuer, J. C. Hill, S. J. Hillier, T. Hilse, D. A. Hinshaw, J. D. Hobbs, P. R. Hobson, D. Hochman, R. J. Homer, A. K. Honma, R. E. Hughes-Jones, R. Humbert, P. Igo-Kemenes, H. Ihssen, D. C. Imrie, A. C. Janissen, A. Jawahery, P. W. Jeffreys, H. Jeremie, M. Jimack, M. Jones, R. W.L. Jones, P. Jovanovic, C. Jui, D. Karlen, K. Kawagoe, T. Kawamoto, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, J. King, S. Kluth, T. Kobayashi, D. S. Koetke, T. P. Kokott, S. Komamiya, J. F. Kral, R. Kowalewski, J. von Krogh, J. Kroll, P. Kyberd, G. D. Lafferty, H. Lafoux, R. Lahmann, J. Lauber, J. G. Layter, P. Leblanc, A. M. Lee, E. Lefebvre, M. H. Lehto, D. Lellouch, C. Leroy, J. Letts, L. Levinson, S. L. Lloyd, F. K. Loebinger, J. M. Lorah, B. Lorazo, M. J. Losty, X. C. Lou, J. Ludwig, A. Luig, M. Mannelli, S. Marcellini, C. Markus, A. J. Martin, J. P. Martin, T. Mashimo, P. Mättig, U. Maur, J. McKenna, T. J. McMahon, J. R. McNutt, F. Meijers, D. Menszner, F. S. Merritt, H. Mes, A. Michelini, R. P. Middleton, G. Mikenberg, J. Mildenberger, D. J. Miller, R. Mir, W. Mohr, C. Moisan, A. Montanari, T. Mori, M. Mori, U. Müller, B. Nellen, H. H. Nguyen, S. W. O'Neale, F. G. Oakham, F. Odorici, H. O. Ogren, C. J. Oram, M. J. Oreglia, S. Orito, J. P. Pansart, B. Panzer-Steindel, P. Paschievici, G. N. Patrick, N. Paz-Jaoshvili, M. J. Pearce, P. Pfister, J. E. Pilcher, J. Pinfold, D. Pitman, D. E. Plane, P. Poffenberger, B. Poli, T. W. Pritchard, H. Przysiezniak, G. Quast, M. W. Redmond, D. L. Rees, G. E. Richards, M. Rison, S. A. Robins, D. Robinson, A. Rollnik, J. M. Roney, E. Ros, S. Rossberg, A. M. Rossi, M. Rosvick, P. Routenburg, K. Runge, O. Runolfsson, D. R. Rust, M. Sasaki, C. Sbarra, A. D. Schaile, O. Schaile, W. Schappert, F. Scharf, P. Scharff-Hansen, P. Schenk, B. Schmitt, H. von der Schmitt, M. Schröder, C. Schwick, J. Schwiening, W. G. Scott, M. Settles, T. G. Shears, B. C. Shen, C. H. Shepherd-Themistocleous, P. Sherwood, G. P. Siroli, A. Skillman, A. Skuja, A. M. Smith, T. J. Smith, G. A. Snow, R. Sobie, R. W. Springer, M. Sproston, A. Stahl, C. Stegmann, K. Stephens, J. Steuerer, R. Ströhmer, D. Strom, H. Takeda, T. Takeshita, S. Tarem, M. Tecchio, P. Teixeira-Dias, N. Tesch, M. A. Thomson, E. Torrente-Lujan, S. Towers, G. Transtromer, N. J. Tresilian, T. Tsukamoto, M. F. Turner, D. Van den plas, R. Van Kooten, G. J. VanDalen, G. Vasseur, A. Wagner, D. L. Wagner, C. Wahl, C. P. Ward, D. R. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, M. Weber, P. Weber, P. S. Wells, N. Wermes, M. A. Whalley, B. Wilkens, G. W. Wilson, J. A. Wilson, V. H. Winterer, T. Wlodek, G. Wolf, S. Wotton, T. R. Wyatt, R. Yaari, A. Yeaman, G. Yekutieli, M. Yurko, W. Zeuner, G. T. Zorn

Physics and Astronomy

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Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

We have studied the reactions γγ→μ⁺μ^- and γγ→τ⁺τ^- by measuring the properties of events of the types e⁺e^-→e⁺e^-μ⁺μ^- and e⁺e^-→e⁺e^-τ⁺τ^- at e⁺e^- centre-of-mass energies between 88 and 94 GeV. The data sample corresponds to an integrated e⁺e^- luminosity of 40.4 pb^-1 collected by the OPAL detector at LEP. The QED structure function F₂ is extracted from a sample of 1462 γγ→μ⁺μ^- events in which one photon is off the mass shell (single-tagged). The Q² range for these massive photons is 4-400 GeV², with an average Q² of 8 GeV². We have observed 48 e⁺e^-→e⁺e^-μ⁺μ^- events in which both final state electrons are detected. In the sample of single-tag events we have identified 34.9±6.7 events as due to the reaction γ;→τ⁺τ^-, on an estimated background of 5.1±2.7 events. In all cases the measured event distributions agree with QED calculations.

Original language	English
Pages (from-to)	593-600
Number of pages	8
Journal	European Physical Journal C
Volume	60
Issue number	4
DOIs	https://doi.org/10.1007/BF01558388
State	Published - Dec 1993

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10.1007/BF01558388

Cite this

Akers, R., Alexander, G., Allison, J., Anderson, K. J., Arcelli, S., Astbury, A., Axen, D., Azuelos, G., Baines, J. T. M., Ball, A. H., Banks, J., Barlow, R. J., Barnett, S., Bartoldus, R., Batley, J. R., Beaudoin, G., Beck, A., Beck, G. A., Becker, J., ... Zorn, G. T. (1993). A study of muon pair production and evidence for tau pair production in photon-photon collisions at LEP. European Physical Journal C, 60(4), 593-600. https://doi.org/10.1007/BF01558388

@article{c6bd609d6d8b4d6281ec258b831934b5,

title = "A study of muon pair production and evidence for tau pair production in photon-photon collisions at LEP",

abstract = "We have studied the reactions γγ→μ+μ- and γγ→τ+τ- by measuring the properties of events of the types e+e-→e+e-μ+ μ- and e+e-→e+e-τ+ τ- at e+e- centre-of-mass energies between 88 and 94 GeV. The data sample corresponds to an integrated e+e- luminosity of 40.4 pb-1 collected by the OPAL detector at LEP. The QED structure function F2 is extracted from a sample of 1462 γγ→μ+μ- events in which one photon is off the mass shell (single-tagged). The Q2 range for these massive photons is 4-400 GeV2, with an average Q2 of 8 GeV2. We have observed 48 e+e-→e+e-μ+ μ- events in which both final state electrons are detected. In the sample of single-tag events we have identified 34.9±6.7 events as due to the reaction γ;→τ+τ-, on an estimated background of 5.1±2.7 events. In all cases the measured event distributions agree with QED calculations.",

author = "R. Akers and G. Alexander and J. Allison and Anderson, \{K. J.\} and S. Arcelli and A. Astbury and D. Axen and G. Azuelos and Baines, \{J. T.M.\} and Ball, \{A. H.\} and J. Banks and Barlow, \{R. J.\} and S. Barnett and R. Bartoldus and Batley, \{J. R.\} and G. Beaudoin and A. Beck and Beck, \{G. A.\} and J. Becker and C. Beeston and T. Behnke and Bell, \{K. W.\} and G. Bella and P. Bentkowski and P. Berlich and S. Bethke and O. Biebel and Bloodworth, \{I. J.\} and P. Bock and B. Boden and Bosch, \{H. M.\} and M. Boutemeur and H. Breuker and P. Bright-Thomas and Brown, \{R. M.\} and A. Buijs and Burckhart, \{H. J.\} and C. Burgard and P. Capiluppi and Carnegie, \{R. K.\} and Carter, \{A. A.\} and Carter, \{J. R.\} and Chang, \{C. Y.\} and Charlton, \{D. G.\} and Chu, \{S. L.\} and Clarke, \{P. E.L.\} and Clayton, \{J. C.\} and I. Cohen and Conboy, \{J. E.\} and M. Cooper and M. Coupland and M. Cuffiani and S. Dado and Dallavalle, \{G. M.\} and \{De Jong\}, S. and \{del Pozo\}, \{L. A.\} and H. Deng and A. Dieckmann and M. Dittmar and Dixit, \{M. S.\} and \{do Couto e Silva\}, E. and Duboscq, \{J. E.\} and E. Duchovni and G. Duckeck and Duerdoth, \{I. P.\} and Dumas, \{D. J.P.\} and Elcombe, \{P. A.\} and Estabrooks, \{P. G.\} and E. Etzion and Evans, \{H. G.\} and F. Fabbri and B. Fabbro and M. Fierro and M. Fincke-Keeler and Fischer, \{H. M.\} and Fong, \{D. G.\} and M. Foucher and A. Gaidot and Gary, \{J. W.\} and J. Gascon and Geddes, \{N. I.\} and C. Geich-Gimbel and Gensler, \{S. W.\} and Gentit, \{F. X.\} and G. Giacomelli and R. Giacomelli and V. Gibson and Gibson, \{W. R.\} and Gillies, \{J. D.\} and J. Goldberg and Gingrich, \{D. M.\} and Goodrick, \{M. J.\} and W. Gorn and C. Grandi and Grant, \{F. C.\} and J. Hagemann and Hanson, \{G. G.\} and M. Hansroul and Hargrove, \{C. K.\} and Harrison, \{P. F.\} and J. Hart and Hattersley, \{P. M.\} and M. Hauschild and Hawkes, \{C. M.\} and E. Heflin and Hemingway, \{R. J.\} and G. Herten and Heuer, \{R. D.\} and Hill, \{J. C.\} and Hillier, \{S. J.\} and T. Hilse and Hinshaw, \{D. A.\} and Hobbs, \{J. D.\} and Hobson, \{P. R.\} and D. Hochman and Homer, \{R. J.\} and Honma, \{A. K.\} and Hughes-Jones, \{R. E.\} and R. Humbert and P. Igo-Kemenes and H. Ihssen and Imrie, \{D. C.\} and Janissen, \{A. C.\} and A. Jawahery and Jeffreys, \{P. W.\} and H. Jeremie and M. Jimack and M. Jones and Jones, \{R. W.L.\} and P. Jovanovic and C. Jui and D. Karlen and K. Kawagoe and T. Kawamoto and Keeler, \{R. K.\} and Kellogg, \{R. G.\} and Kennedy, \{B. W.\} and J. King and S. Kluth and T. Kobayashi and Koetke, \{D. S.\} and Kokott, \{T. P.\} and S. Komamiya and Kral, \{J. F.\} and R. Kowalewski and \{von Krogh\}, J. and J. Kroll and P. Kyberd and Lafferty, \{G. D.\} and H. Lafoux and R. Lahmann and J. Lauber and Layter, \{J. G.\} and P. Leblanc and Lee, \{A. M.\} and E. Lefebvre and Lehto, \{M. H.\} and D. Lellouch and C. Leroy and J. Letts and L. Levinson and Lloyd, \{S. L.\} and Loebinger, \{F. K.\} and Lorah, \{J. M.\} and B. Lorazo and Losty, \{M. J.\} and Lou, \{X. C.\} and J. Ludwig and A. Luig and M. Mannelli and S. Marcellini and C. Markus and Martin, \{A. J.\} and Martin, \{J. P.\} and T. Mashimo and P. M{\"a}ttig and U. Maur and J. McKenna and McMahon, \{T. J.\} and McNutt, \{J. R.\} and F. Meijers and D. Menszner and Merritt, \{F. S.\} and H. Mes and A. Michelini and Middleton, \{R. P.\} and G. Mikenberg and J. Mildenberger and Miller, \{D. J.\} and R. Mir and W. Mohr and C. Moisan and A. Montanari and T. Mori and M. Mori and U. M{\"u}ller and B. Nellen and Nguyen, \{H. H.\} and O'Neale, \{S. W.\} and Oakham, \{F. G.\} and F. Odorici and Ogren, \{H. O.\} and Oram, \{C. J.\} and Oreglia, \{M. J.\} and S. Orito and Pansart, \{J. P.\} and B. Panzer-Steindel and P. Paschievici and Patrick, \{G. N.\} and N. Paz-Jaoshvili and Pearce, \{M. J.\} and P. Pfister and Pilcher, \{J. E.\} and J. Pinfold and D. Pitman and Plane, \{D. E.\} and P. Poffenberger and B. Poli and Pritchard, \{T. W.\} and H. Przysiezniak and G. Quast and Redmond, \{M. W.\} and Rees, \{D. L.\} and Richards, \{G. E.\} and M. Rison and Robins, \{S. A.\} and D. Robinson and A. Rollnik and Roney, \{J. M.\} and E. Ros and S. Rossberg and Rossi, \{A. M.\} and M. Rosvick and P. Routenburg and K. Runge and O. Runolfsson and Rust, \{D. R.\} and M. Sasaki and C. Sbarra and Schaile, \{A. D.\} and O. Schaile and W. Schappert and F. Scharf and P. Scharff-Hansen and P. Schenk and B. Schmitt and \{von der Schmitt\}, H. and M. Schr{\"o}der and C. Schwick and J. Schwiening and Scott, \{W. G.\} and M. Settles and Shears, \{T. G.\} and Shen, \{B. C.\} and Shepherd-Themistocleous, \{C. H.\} and P. Sherwood and Siroli, \{G. P.\} and A. Skillman and A. Skuja and Smith, \{A. M.\} and Smith, \{T. J.\} and Snow, \{G. A.\} and R. Sobie and Springer, \{R. W.\} and M. Sproston and A. Stahl and C. Stegmann and K. Stephens and J. Steuerer and R. Str{\"o}hmer and D. Strom and H. Takeda and T. Takeshita and S. Tarem and M. Tecchio and P. Teixeira-Dias and N. Tesch and Thomson, \{M. A.\} and E. Torrente-Lujan and S. Towers and G. Transtromer and Tresilian, \{N. J.\} and T. Tsukamoto and Turner, \{M. F.\} and \{Van den plas\}, D. and \{Van Kooten\}, R. and VanDalen, \{G. J.\} and G. Vasseur and A. Wagner and Wagner, \{D. L.\} and C. Wahl and Ward, \{C. P.\} and Ward, \{D. R.\} and Watkins, \{P. M.\} and Watson, \{A. T.\} and Watson, \{N. K.\} and M. Weber and P. Weber and Wells, \{P. S.\} and N. Wermes and Whalley, \{M. A.\} and B. Wilkens and Wilson, \{G. W.\} and Wilson, \{J. A.\} and Winterer, \{V. H.\} and T. Wlodek and G. Wolf and S. Wotton and Wyatt, \{T. R.\} and R. Yaari and A. Yeaman and G. Yekutieli and M. Yurko and W. Zeuner and Zorn, \{G. T.\}",

year = "1993",

month = dec,

doi = "10.1007/BF01558388",

language = "English",

volume = "60",

pages = "593--600",

journal = "European Physical Journal C",

issn = "1434-6044",

number = "4",

}

Akers, R, Alexander, G, Allison, J, Anderson, KJ, Arcelli, S, Astbury, A, Axen, D, Azuelos, G, Baines, JTM, Ball, AH, Banks, J, Barlow, RJ, Barnett, S, Bartoldus, R, Batley, JR, Beaudoin, G, Beck, A, Beck, GA, Becker, J, Beeston, C, Behnke, T, Bell, KW, Bella, G, Bentkowski, P, Berlich, P, Bethke, S, Biebel, O, Bloodworth, IJ, Bock, P, Boden, B, Bosch, HM, Boutemeur, M, Breuker, H, Bright-Thomas, P, Brown, RM, Buijs, A, Burckhart, HJ, Burgard, C, Capiluppi, P, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Chu, SL, Clarke, PEL, Clayton, JC, Cohen, I, Conboy, JE, Cooper, M, Coupland, M, Cuffiani, M, Dado, S, Dallavalle, GM, De Jong, S, del Pozo, LA, Deng, H, Dieckmann, A, Dittmar, M, Dixit, MS, do Couto e Silva, E, Duboscq, JE, Duchovni, E, Duckeck, G, Duerdoth, IP, Dumas, DJP, Elcombe, PA, Estabrooks, PG, Etzion, E, Evans, HG, Fabbri, F, Fabbro, B, Fierro, M, Fincke-Keeler, M, Fischer, HM, Fong, DG, Foucher, M, Gaidot, A, Gary, JW, Gascon, J, Geddes, NI, Geich-Gimbel, C, Gensler, SW, Gentit, FX, Giacomelli, G, Giacomelli, R, Gibson, V, Gibson, WR, Gillies, JD, Goldberg, J, Gingrich, DM, Goodrick, MJ, Gorn, W, Grandi, C, Grant, FC, Hagemann, J, Hanson, GG, Hansroul, M, Hargrove, CK, Harrison, PF, Hart, J, Hattersley, PM, Hauschild, M, Hawkes, CM, Heflin, E, Hemingway, RJ, Herten, G, Heuer, RD, Hill, JC, Hillier, SJ, Hilse, T, Hinshaw, DA, Hobbs, JD, Hobson, PR, Hochman, D, Homer, RJ, Honma, AK, Hughes-Jones, RE, Humbert, R, Igo-Kemenes, P, Ihssen, H, Imrie, DC, Janissen, AC, Jawahery, A, Jeffreys, PW, Jeremie, H, Jimack, M, Jones, M, Jones, RWL, Jovanovic, P, Jui, C, Karlen, D, Kawagoe, K, Kawamoto, T, Keeler, RK, Kellogg, RG, Kennedy, BW, King, J, Kluth, S, Kobayashi, T, Koetke, DS, Kokott, TP, Komamiya, S, Kral, JF, Kowalewski, R, von Krogh, J, Kroll, J, Kyberd, P, Lafferty, GD, Lafoux, H, Lahmann, R, Lauber, J, Layter, JG, Leblanc, P, Lee, AM, Lefebvre, E, Lehto, MH, Lellouch, D, Leroy, C, Letts, J, Levinson, L, Lloyd, SL, Loebinger, FK, Lorah, JM, Lorazo, B, Losty, MJ, Lou, XC, Ludwig, J, Luig, A, Mannelli, M, Marcellini, S, Markus, C, Martin, AJ, Martin, JP, Mashimo, T, Mättig, P, Maur, U, McKenna, J, McMahon, TJ, McNutt, JR, Meijers, F, Menszner, D, Merritt, FS, Mes, H, Michelini, A, Middleton, RP, Mikenberg, G, Mildenberger, J, Miller, DJ, Mir, R, Mohr, W, Moisan, C, Montanari, A, Mori, T, Mori, M, Müller, U, Nellen, B, Nguyen, HH, O'Neale, SW, Oakham, FG, Odorici, F, Ogren, HO, Oram, CJ, Oreglia, MJ, Orito, S, Pansart, JP, Panzer-Steindel, B, Paschievici, P, Patrick, GN, Paz-Jaoshvili, N, Pearce, MJ, Pfister, P, Pilcher, JE, Pinfold, J, Pitman, D, Plane, DE, Poffenberger, P, Poli, B, Pritchard, TW, Przysiezniak, H, Quast, G, Redmond, MW, Rees, DL, Richards, GE, Rison, M, Robins, SA, Robinson, D, Rollnik, A, Roney, JM, Ros, E, Rossberg, S, Rossi, AM, Rosvick, M, Routenburg, P, Runge, K, Runolfsson, O, Rust, DR, Sasaki, M, Sbarra, C, Schaile, AD, Schaile, O, Schappert, W, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, von der Schmitt, H, Schröder, M, Schwick, C, Schwiening, J, Scott, WG, Settles, M, Shears, TG, Shen, BC, Shepherd-Themistocleous, CH, Sherwood, P, Siroli, GP, Skillman, A, Skuja, A, Smith, AM, Smith, TJ, Snow, GA, Sobie, R, Springer, RW, Sproston, M, Stahl, A, Stegmann, C, Stephens, K, Steuerer, J, Ströhmer, R, Strom, D, Takeda, H, Takeshita, T, Tarem, S, Tecchio, M, Teixeira-Dias, P, Tesch, N, Thomson, MA, Torrente-Lujan, E, Towers, S, Transtromer, G, Tresilian, NJ, Tsukamoto, T, Turner, MF, Van den plas, D, Van Kooten, R, VanDalen, GJ, Vasseur, G, Wagner, A, Wagner, DL, Wahl, C, Ward, CP, Ward, DR, Watkins, PM, Watson, AT, Watson, NK, Weber, M, Weber, P, Wells, PS, Wermes, N, Whalley, MA, Wilkens, B, Wilson, GW, Wilson, JA, Winterer, VH, Wlodek, T, Wolf, G, Wotton, S, Wyatt, TR, Yaari, R, Yeaman, A, Yekutieli, G, Yurko, M, Zeuner, W & Zorn, GT 1993, 'A study of muon pair production and evidence for tau pair production in photon-photon collisions at LEP', European Physical Journal C, vol. 60, no. 4, pp. 593-600. https://doi.org/10.1007/BF01558388

TY - JOUR

T1 - A study of muon pair production and evidence for tau pair production in photon-photon collisions at LEP

AU - Akers, R.

AU - Alexander, G.

AU - Allison, J.

AU - Anderson, K. J.

AU - Arcelli, S.

AU - Astbury, A.

AU - Axen, D.

AU - Azuelos, G.

AU - Baines, J. T.M.

AU - Ball, A. H.

AU - Banks, J.

AU - Barlow, R. J.

AU - Barnett, S.

AU - Bartoldus, R.

AU - Batley, J. R.

AU - Beaudoin, G.

AU - Beck, A.

AU - Beck, G. A.

AU - Becker, J.

AU - Beeston, C.

AU - Behnke, T.

AU - Bell, K. W.

AU - Bella, G.

AU - Bentkowski, P.

AU - Berlich, P.

AU - Bethke, S.

AU - Biebel, O.

AU - Bloodworth, I. J.

AU - Bock, P.

AU - Boden, B.

AU - Bosch, H. M.

AU - Boutemeur, M.

AU - Breuker, H.

AU - Bright-Thomas, P.

AU - Brown, R. M.

AU - Buijs, A.

AU - Burckhart, H. J.

AU - Burgard, C.

AU - Capiluppi, P.

AU - Carnegie, R. K.

AU - Carter, A. A.

AU - Carter, J. R.

AU - Chang, C. Y.

AU - Charlton, D. G.

AU - Chu, S. L.

AU - Clarke, P. E.L.

AU - Clayton, J. C.

AU - Cohen, I.

AU - Conboy, J. E.

AU - Cooper, M.

AU - Coupland, M.

AU - Cuffiani, M.

AU - Dado, S.

AU - Dallavalle, G. M.

AU - De Jong, S.

AU - del Pozo, L. A.

AU - Deng, H.

AU - Dieckmann, A.

AU - Dittmar, M.

AU - Dixit, M. S.

AU - do Couto e Silva, E.

AU - Duboscq, J. E.

AU - Duchovni, E.

AU - Duckeck, G.

AU - Duerdoth, I. P.

AU - Dumas, D. J.P.

AU - Elcombe, P. A.

AU - Estabrooks, P. G.

AU - Etzion, E.

AU - Evans, H. G.

AU - Fabbri, F.

AU - Fabbro, B.

AU - Fierro, M.

AU - Fincke-Keeler, M.

AU - Fischer, H. M.

AU - Fong, D. G.

AU - Foucher, M.

AU - Gaidot, A.

AU - Gary, J. W.

AU - Gascon, J.

AU - Geddes, N. I.

AU - Geich-Gimbel, C.

AU - Gensler, S. W.

AU - Gentit, F. X.

AU - Giacomelli, G.

AU - Giacomelli, R.

AU - Gibson, V.

AU - Gibson, W. R.

AU - Gillies, J. D.

AU - Goldberg, J.

AU - Gingrich, D. M.

AU - Goodrick, M. J.

AU - Gorn, W.

AU - Grandi, C.

AU - Grant, F. C.

AU - Hagemann, J.

AU - Hanson, G. G.

AU - Hansroul, M.

AU - Hargrove, C. K.

AU - Harrison, P. F.

AU - Hart, J.

AU - Hattersley, P. M.

AU - Hauschild, M.

AU - Hawkes, C. M.

AU - Heflin, E.

AU - Hemingway, R. J.

AU - Herten, G.

AU - Heuer, R. D.

AU - Hill, J. C.

AU - Hillier, S. J.

AU - Hilse, T.

AU - Hinshaw, D. A.

AU - Hobbs, J. D.

AU - Hobson, P. R.

AU - Hochman, D.

AU - Homer, R. J.

AU - Honma, A. K.

AU - Hughes-Jones, R. E.

AU - Humbert, R.

AU - Igo-Kemenes, P.

AU - Ihssen, H.

AU - Imrie, D. C.

AU - Janissen, A. C.

AU - Jawahery, A.

AU - Jeffreys, P. W.

AU - Jeremie, H.

AU - Jimack, M.

AU - Jones, M.

AU - Jones, R. W.L.

AU - Jovanovic, P.

AU - Jui, C.

AU - Karlen, D.

AU - Kawagoe, K.

AU - Kawamoto, T.

AU - Keeler, R. K.

AU - Kellogg, R. G.

AU - Kennedy, B. W.

AU - King, J.

AU - Kluth, S.

AU - Kobayashi, T.

AU - Koetke, D. S.

AU - Kokott, T. P.

AU - Komamiya, S.

AU - Kral, J. F.

AU - Kowalewski, R.

AU - von Krogh, J.

AU - Kroll, J.

AU - Kyberd, P.

AU - Lafferty, G. D.

AU - Lafoux, H.

AU - Lahmann, R.

AU - Lauber, J.

AU - Layter, J. G.

AU - Leblanc, P.

AU - Lee, A. M.

AU - Lefebvre, E.

AU - Lehto, M. H.

AU - Lellouch, D.

AU - Leroy, C.

AU - Letts, J.

AU - Levinson, L.

AU - Lloyd, S. L.

AU - Loebinger, F. K.

AU - Lorah, J. M.

AU - Lorazo, B.

AU - Losty, M. J.

AU - Lou, X. C.

AU - Ludwig, J.

AU - Luig, A.

AU - Mannelli, M.

AU - Marcellini, S.

AU - Markus, C.

AU - Martin, A. J.

AU - Martin, J. P.

AU - Mashimo, T.

AU - Mättig, P.

AU - Maur, U.

AU - McKenna, J.

AU - McMahon, T. J.

AU - McNutt, J. R.

AU - Meijers, F.

AU - Menszner, D.

AU - Merritt, F. S.

AU - Mes, H.

AU - Michelini, A.

AU - Middleton, R. P.

AU - Mikenberg, G.

AU - Mildenberger, J.

AU - Miller, D. J.

AU - Mir, R.

AU - Mohr, W.

AU - Moisan, C.

AU - Montanari, A.

AU - Mori, T.

AU - Mori, M.

AU - Müller, U.

AU - Nellen, B.

AU - Nguyen, H. H.

AU - O'Neale, S. W.

AU - Oakham, F. G.

AU - Odorici, F.

AU - Ogren, H. O.

AU - Oram, C. J.

AU - Oreglia, M. J.

AU - Orito, S.

AU - Pansart, J. P.

AU - Panzer-Steindel, B.

AU - Paschievici, P.

AU - Patrick, G. N.

AU - Paz-Jaoshvili, N.

AU - Pearce, M. J.

AU - Pfister, P.

AU - Pilcher, J. E.

AU - Pinfold, J.

AU - Pitman, D.

AU - Plane, D. E.

AU - Poffenberger, P.

AU - Poli, B.

AU - Pritchard, T. W.

AU - Przysiezniak, H.

AU - Quast, G.

AU - Redmond, M. W.

AU - Rees, D. L.

AU - Richards, G. E.

AU - Rison, M.

AU - Robins, S. A.

AU - Robinson, D.

AU - Rollnik, A.

AU - Roney, J. M.

AU - Ros, E.

AU - Rossberg, S.

AU - Rossi, A. M.

AU - Rosvick, M.

AU - Routenburg, P.

AU - Runge, K.

AU - Runolfsson, O.

AU - Rust, D. R.

AU - Sasaki, M.

AU - Sbarra, C.

AU - Schaile, A. D.

AU - Schaile, O.

AU - Schappert, W.

AU - Scharf, F.

AU - Scharff-Hansen, P.

AU - Schenk, P.

AU - Schmitt, B.

AU - von der Schmitt, H.

AU - Schröder, M.

AU - Schwick, C.

AU - Schwiening, J.

AU - Scott, W. G.

AU - Settles, M.

AU - Shears, T. G.

AU - Shen, B. C.

AU - Shepherd-Themistocleous, C. H.

AU - Sherwood, P.

AU - Siroli, G. P.

AU - Skillman, A.

AU - Skuja, A.

AU - Smith, A. M.

AU - Smith, T. J.

AU - Snow, G. A.

AU - Sobie, R.

AU - Springer, R. W.

AU - Sproston, M.

AU - Stahl, A.

AU - Stegmann, C.

AU - Stephens, K.

AU - Steuerer, J.

AU - Ströhmer, R.

AU - Strom, D.

AU - Takeda, H.

AU - Takeshita, T.

AU - Tarem, S.

AU - Tecchio, M.

AU - Teixeira-Dias, P.

AU - Tesch, N.

AU - Thomson, M. A.

AU - Torrente-Lujan, E.

AU - Towers, S.

AU - Transtromer, G.

AU - Tresilian, N. J.

AU - Tsukamoto, T.

AU - Turner, M. F.

AU - Van den plas, D.

AU - Van Kooten, R.

AU - VanDalen, G. J.

AU - Vasseur, G.

AU - Wagner, A.

AU - Wagner, D. L.

AU - Wahl, C.

AU - Ward, C. P.

AU - Ward, D. R.

AU - Watkins, P. M.

AU - Watson, A. T.

AU - Watson, N. K.

AU - Weber, M.

AU - Weber, P.

AU - Wells, P. S.

AU - Wermes, N.

AU - Whalley, M. A.

AU - Wilkens, B.

AU - Wilson, G. W.

AU - Wilson, J. A.

AU - Winterer, V. H.

AU - Wlodek, T.

AU - Wolf, G.

AU - Wotton, S.

AU - Wyatt, T. R.

AU - Yaari, R.

AU - Yeaman, A.

AU - Yekutieli, G.

AU - Yurko, M.

AU - Zeuner, W.

AU - Zorn, G. T.

PY - 1993/12

Y1 - 1993/12

N2 - We have studied the reactions γγ→μ+μ- and γγ→τ+τ- by measuring the properties of events of the types e+e-→e+e-μ+ μ- and e+e-→e+e-τ+ τ- at e+e- centre-of-mass energies between 88 and 94 GeV. The data sample corresponds to an integrated e+e- luminosity of 40.4 pb-1 collected by the OPAL detector at LEP. The QED structure function F2 is extracted from a sample of 1462 γγ→μ+μ- events in which one photon is off the mass shell (single-tagged). The Q2 range for these massive photons is 4-400 GeV2, with an average Q2 of 8 GeV2. We have observed 48 e+e-→e+e-μ+ μ- events in which both final state electrons are detected. In the sample of single-tag events we have identified 34.9±6.7 events as due to the reaction γ;→τ+τ-, on an estimated background of 5.1±2.7 events. In all cases the measured event distributions agree with QED calculations.

AB - We have studied the reactions γγ→μ+μ- and γγ→τ+τ- by measuring the properties of events of the types e+e-→e+e-μ+ μ- and e+e-→e+e-τ+ τ- at e+e- centre-of-mass energies between 88 and 94 GeV. The data sample corresponds to an integrated e+e- luminosity of 40.4 pb-1 collected by the OPAL detector at LEP. The QED structure function F2 is extracted from a sample of 1462 γγ→μ+μ- events in which one photon is off the mass shell (single-tagged). The Q2 range for these massive photons is 4-400 GeV2, with an average Q2 of 8 GeV2. We have observed 48 e+e-→e+e-μ+ μ- events in which both final state electrons are detected. In the sample of single-tag events we have identified 34.9±6.7 events as due to the reaction γ;→τ+τ-, on an estimated background of 5.1±2.7 events. In all cases the measured event distributions agree with QED calculations.

UR - https://www.scopus.com/pages/publications/51249169340

U2 - 10.1007/BF01558388

DO - 10.1007/BF01558388

M3 - Article

AN - SCOPUS:51249169340

SN - 1434-6044

VL - 60

SP - 593

EP - 600

JO - European Physical Journal C

JF - European Physical Journal C

IS - 4

ER -

A study of muon pair production and evidence for tau pair production in photon-photon collisions at LEP

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