Bose-Einstein correlations of π0 pairs from hadronic Z0 decays

G. Abbiendi; C. Ainsley; P. F. Åkesson; G. Alexander; J. Allison; P. Amaral; G. Anagnostou; K. J. Anderson; S. Arcelli; S. Asai; D. Axen; G. Azuelos; I. Bailey; E. Barberio; R. J. Barlow; R. J. Batley; P. Bechtle; T. Behnke; K. W. Bell; P. J. Bell; G. Bella; A. Bellerive; G. Benelli; S. Bethke; O. Biebel; I. J. Bloodworth; O. Boeriu; P. Bock; D. Bonacorsi; M. Boutemeur; S. Braibant; L. Brigliadori; R. M. Brown; K. Buesser; H. J. Burckhart; S. Campana; R. K. Carnegie; B. Caron; A. A. Carter; J. R. Carter; C. Y. Chang; D. G. Charlton; A. Csilling; M. Cuffiani; S. Dado; A. de Roeck; E. A. de Wolf; K. Desch; B. Dienes; M. Donkers; J. Dubbert; E. Duchovni; G. Duckeck; I. P. Duerdoth; E. Elfgren; E. Etzion; F. Fabbri; L. Feld; P. Ferrari; F. Fiedler; I. Fleck; M. Ford; A. Frey; A. Fürtjes; P. Gagnon; J. W. Gary; G. Gaycken; C. Geich-Gimbel; G. Giacomelli; P. Giacomelli; M. Giunta; J. Goldberg; E. Gross; J. Grunhaus; M. Gruwé; P. O. Günther; A. Gupta; C. Hajdu; M. Hamann; G. G. Hanson; K. Harder; A. Harel; M. Harin-Dirac; M. Hauschild; C. M. Hawkes; R. Hawkings; R. J. Hemingway; C. Hensel; G. Herten; R. D. Heuer; J. C. Hill; K. Hodman; R. J. Homer; D. Horváth; P. Igo-Kemenes; K. Ishii; H. Jeremie; P. Jovanovic; T. R. Junk; N. Kanaya; J. Kanzaki; G. Karapetian; D. Karlen; K. Kawagoe; T. Kawamoto; R. K. Keeler; R. G. Kellogg; B. W. Kennedy; D. H. Kim; K. Klein; A. Klier; S. Kluth; T. Kobayashi; M. Kobel; S. Komamiya; L. Kormos; T. Krämer; T. Kress; P. Krieger; J. von Krogh; D. Krop; K. Kruger; T. Kuhl; M. Kupper; G. D. Lafferty; H. Landsman; D. Lanske; J. G. Layter; A. Leins; D. Lellouch; J. Letts; L. Levinson; J. Lillich; S. L. Lloyd; F. K. Loebinger; J. Lu; J. Ludwig; A. Macpherson; W. Mader; S. Marcellini; A. J. Martin; G. Masetti; T. Mashimo; P. Mättig; W. J. McDonald; J. McKenna; T. J. McMahon; R. A. McPherson; F. Meijers; W. Menges; F. S. Merritt; H. Mes; A. Michelini; S. Mihara; G. Mikenberg; D. J. Miller; S. Moed; W. Mohr; T. Mori; A. Mutter; K. Nagai; I. Nakamura; H. A. Neal; R. Nisius; S. W. O'Neale; A. Oh; A. Okpara; M. J. Oreglia; S. Orito; C. Pahl; G. Pásztor; J. R. Pater; G. N. Patrick; J. E. Pilcher; J. Pinfold; D. E. Plane; B. Poli; J. Polok; O. Pooth; M. Przybycien; A. Quadt; K. Rabbertz; C. Rembser; P. Renkel; H. Rick; J. M. Roney; S. Rosati; Y. Rozen; K. Runge; K. Sachs; T. Saeki; E. K.G. Sarkisyan; A. D. Schaile; O. Schaile; P. Scharff-Hansen; J. Schieck; T. Schörner-Sadenius; M. Schröder; M. Schumacher; C. Schwick; W. G. Scott; R. Seuster; T. G. Shears; B. C. Shen; P. Sherwood; G. Siroli; A. Skuja; A. M. Smith; R. Sobie; S. Söldner-Rembold; F. Spano; A. Stahl; K. Stephens; D. Strom; R. Ströhmer; S. Tarem; M. Tasevsky; R. J. Taylor; R. Teuscher; M. A. Thomson; E. Torrence; D. Toya; P. Tran; A. Tricoli; I. Trigger; Z. Trócsányi; E. Tsur; M. F. Turner-Watson; I. Ueda; B. Ujvári; C. F. Vollmer; P. Vannerem; R. Vértesi; M. Verzocchi; H. Voss; J. Vossebeld; D. Waller; C. P. Ward; D. R. Ward; P. M. Watkins; A. T. Watson; N. K. Watson; P. S. Wells; T. Wengler; N. Wermes; D. Wetterling; G. W. Wilson; J. A. Wilson; G. Wolf; T. R. Wyatt; S. Yamashita; D. Zer-Zion; L. Zivkovic

doi:10.1016/S0370-2693(03)00337-X

Bose-Einstein correlations of π⁰ pairs from hadronic Z⁰ decays

G. Abbiendi^*
, C. Ainsley
, P. F. Åkesson
, G. Alexander
, J. Allison
, P. Amaral
, G. Anagnostou
, K. J. Anderson
, S. Arcelli
, S. Asai
, D. Axen
, G. Azuelos
, I. Bailey
, E. Barberio
, R. J. Barlow
, R. J. Batley
, P. Bechtle
, T. Behnke
, K. W. Bell
, P. J. Bell

G. Bella, A. Bellerive, G. Benelli, S. Bethke, O. Biebel, I. J. Bloodworth, O. Boeriu, P. Bock, D. Bonacorsi, M. Boutemeur, S. Braibant, L. Brigliadori, R. M. Brown, K. Buesser, H. J. Burckhart, S. Campana, R. K. Carnegie, B. Caron, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, A. Csilling, M. Cuffiani, S. Dado, A. de Roeck, E. A. de Wolf, K. Desch, B. Dienes, M. Donkers, J. Dubbert, E. Duchovni, G. Duckeck, I. P. Duerdoth, E. Elfgren, E. Etzion, F. Fabbri, L. Feld, P. Ferrari, F. Fiedler, I. Fleck, M. Ford, A. Frey, A. Fürtjes, P. Gagnon, J. W. Gary, G. Gaycken, C. Geich-Gimbel, G. Giacomelli, P. Giacomelli, M. Giunta, J. Goldberg, E. Gross, J. Grunhaus, M. Gruwé, P. O. Günther, A. Gupta, C. Hajdu, M. Hamann, G. G. Hanson, K. Harder, A. Harel, M. Harin-Dirac, M. Hauschild, C. M. Hawkes, R. Hawkings, R. J. Hemingway, C. Hensel, G. Herten, R. D. Heuer, J. C. Hill, K. Hodman, R. J. Homer, D. Horváth, P. Igo-Kemenes, K. Ishii, H. Jeremie, P. Jovanovic, T. R. Junk, N. Kanaya, J. Kanzaki, G. Karapetian, D. Karlen, K. Kawagoe, T. Kawamoto, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, D. H. Kim, K. Klein, A. Klier, S. Kluth, T. Kobayashi, M. Kobel, S. Komamiya, L. Kormos, T. Krämer, T. Kress, P. Krieger, J. von Krogh, D. Krop, K. Kruger, T. Kuhl, M. Kupper, G. D. Lafferty, H. Landsman, D. Lanske, J. G. Layter, A. Leins, D. Lellouch, J. Letts, L. Levinson, J. Lillich, S. L. Lloyd, F. K. Loebinger, J. Lu, J. Ludwig, A. Macpherson, W. Mader, S. Marcellini, A. J. Martin, G. Masetti, T. Mashimo, P. Mättig, W. J. McDonald, J. McKenna, T. J. McMahon, R. A. McPherson, F. Meijers, W. Menges, F. S. Merritt, H. Mes, A. Michelini, S. Mihara, G. Mikenberg, D. J. Miller, S. Moed, W. Mohr, T. Mori, A. Mutter, K. Nagai, I. Nakamura, H. A. Neal, R. Nisius, S. W. O'Neale, A. Oh, A. Okpara, M. J. Oreglia, S. Orito, C. Pahl, G. Pásztor, J. R. Pater, G. N. Patrick, J. E. Pilcher, J. Pinfold, D. E. Plane, B. Poli, J. Polok, O. Pooth, M. Przybycien, A. Quadt, K. Rabbertz, C. Rembser, P. Renkel, H. Rick, J. M. Roney, S. Rosati, Y. Rozen, K. Runge, K. Sachs, T. Saeki, E. K.G. Sarkisyan, A. D. Schaile, O. Schaile, P. Scharff-Hansen, J. Schieck, T. Schörner-Sadenius, M. Schröder, M. Schumacher, C. Schwick, W. G. Scott, R. Seuster, T. G. Shears, B. C. Shen, P. Sherwood, G. Siroli, A. Skuja, A. M. Smith, R. Sobie, S. Söldner-Rembold, F. Spano, A. Stahl, K. Stephens, D. Strom, R. Ströhmer, S. Tarem, M. Tasevsky, R. J. Taylor, R. Teuscher, M. A. Thomson, E. Torrence, D. Toya, P. Tran, A. Tricoli, I. Trigger, Z. Trócsányi, E. Tsur, M. F. Turner-Watson, I. Ueda, B. Ujvári, C. F. Vollmer, P. Vannerem, R. Vértesi, M. Verzocchi, H. Voss, J. Vossebeld, D. Waller, C. P. Ward, D. R. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. S. Wells, T. Wengler, N. Wermes, D. Wetterling, G. W. Wilson, J. A. Wilson, G. Wolf, T. R. Wyatt, S. Yamashita, D. Zer-Zion, L. Zivkovic

^*Corresponding author for this work

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

21 Scopus citations

Abstract

We observe Bose-Einstein correlations in π⁰ pairs using back-to-back two jet hadronic events from Z⁰ decays in the data sample collected by the OPAL detector at LEP 1 from 1991 to 1995. Using a static Gaussian picture for the pion emitter source, we obtain the chaoticity parameter λ = 0.55 ± 0.10 ± 0.10 and the source radius R = (0.59 ± 0.08 ± 0.05) fm. According to the JETSET and HERWIG Monte Carlo models, the Bose-Einstein correlations in our data sample largely connect π⁰s originating from the decays of different hadrons. Prompt pions formed at string break-ups or cluster decays only form a small fraction of the sample.

Original language	English
Pages (from-to)	131-143
Number of pages	13
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	559
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(03)00337-X
State	Published - 1 May 2003

Funding

Funders
Ministry of Education, Culture, Sports, Science and Technology

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10.1016/S0370-2693(03)00337-X

Cite this

Abbiendi, G., Ainsley, C., Åkesson, P. F., Alexander, G., Allison, J., Amaral, P., Anagnostou, G., Anderson, K. J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R. J., Batley, R. J., Bechtle, P., Behnke, T., Bell, K. W., ... Zivkovic, L. (2003). Bose-Einstein correlations of π⁰ pairs from hadronic Z⁰ decays. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 559(3-4), 131-143. https://doi.org/10.1016/S0370-2693(03)00337-X

@article{57e02af34cb441b7a08901486cd98ed2,

title = "Bose-Einstein correlations of π0 pairs from hadronic Z0 decays",

abstract = "We observe Bose-Einstein correlations in π0 pairs using back-to-back two jet hadronic events from Z0 decays in the data sample collected by the OPAL detector at LEP 1 from 1991 to 1995. Using a static Gaussian picture for the pion emitter source, we obtain the chaoticity parameter λ = 0.55 ± 0.10 ± 0.10 and the source radius R = (0.59 ± 0.08 ± 0.05) fm. According to the JETSET and HERWIG Monte Carlo models, the Bose-Einstein correlations in our data sample largely connect π0s originating from the decays of different hadrons. Prompt pions formed at string break-ups or cluster decays only form a small fraction of the sample.",

author = "G. Abbiendi and C. Ainsley and {\AA}kesson, \{P. F.\} and G. Alexander and J. Allison and P. Amaral and G. Anagnostou and Anderson, \{K. J.\} and S. Arcelli and S. Asai and D. Axen and G. Azuelos and I. Bailey and E. Barberio and Barlow, \{R. J.\} and Batley, \{R. J.\} and P. Bechtle and T. Behnke and Bell, \{K. W.\} and Bell, \{P. J.\} and G. Bella and A. Bellerive and G. Benelli and S. Bethke and O. Biebel and Bloodworth, \{I. J.\} and O. Boeriu and P. Bock and D. Bonacorsi and M. Boutemeur and S. Braibant and L. Brigliadori and Brown, \{R. M.\} and K. Buesser and Burckhart, \{H. J.\} and S. Campana and Carnegie, \{R. K.\} and B. Caron and Carter, \{A. A.\} and Carter, \{J. R.\} and Chang, \{C. Y.\} and Charlton, \{D. G.\} and A. Csilling and M. Cuffiani and S. Dado and \{de Roeck\}, A. and \{de Wolf\}, \{E. A.\} and K. Desch and B. Dienes and M. Donkers and J. Dubbert and E. Duchovni and G. Duckeck and Duerdoth, \{I. P.\} and E. Elfgren and E. Etzion and F. Fabbri and L. Feld and P. Ferrari and F. Fiedler and I. Fleck and M. Ford and A. Frey and A. F{\"u}rtjes and P. Gagnon and Gary, \{J. W.\} and G. Gaycken and C. Geich-Gimbel and G. Giacomelli and P. Giacomelli and M. Giunta and J. Goldberg and E. Gross and J. Grunhaus and M. Gruw{\'e} and G{\"u}nther, \{P. O.\} and A. Gupta and C. Hajdu and M. Hamann and Hanson, \{G. G.\} and K. Harder and A. Harel and M. Harin-Dirac and M. Hauschild and Hawkes, \{C. M.\} and R. Hawkings and Hemingway, \{R. J.\} and C. Hensel and G. Herten and Heuer, \{R. D.\} and Hill, \{J. C.\} and K. Hodman and Homer, \{R. J.\} and D. Horv{\'a}th and P. Igo-Kemenes and K. Ishii and H. Jeremie and P. Jovanovic and Junk, \{T. R.\} and N. Kanaya and J. Kanzaki and G. Karapetian and D. Karlen and K. Kawagoe and T. Kawamoto and Keeler, \{R. K.\} and Kellogg, \{R. G.\} and Kennedy, \{B. W.\} and Kim, \{D. H.\} and K. Klein and A. Klier and S. Kluth and T. Kobayashi and M. Kobel and S. Komamiya and L. Kormos and T. Kr{\"a}mer and T. Kress and P. Krieger and \{von Krogh\}, J. and D. Krop and K. Kruger and T. Kuhl and M. Kupper and Lafferty, \{G. D.\} and H. Landsman and D. Lanske and Layter, \{J. G.\} and A. Leins and D. Lellouch and J. Letts and L. Levinson and J. Lillich and Lloyd, \{S. L.\} and Loebinger, \{F. K.\} and J. Lu and J. Ludwig and A. Macpherson and W. Mader and S. Marcellini and Martin, \{A. J.\} and G. Masetti and T. Mashimo and P. M{\"a}ttig and McDonald, \{W. J.\} and J. McKenna and McMahon, \{T. J.\} and McPherson, \{R. A.\} and F. Meijers and W. Menges and Merritt, \{F. S.\} and H. Mes and A. Michelini and S. Mihara and G. Mikenberg and Miller, \{D. J.\} and S. Moed and W. Mohr and T. Mori and A. Mutter and K. Nagai and I. Nakamura and Neal, \{H. A.\} and R. Nisius and O'Neale, \{S. W.\} and A. Oh and A. Okpara and Oreglia, \{M. J.\} and S. Orito and C. Pahl and G. P{\'a}sztor and Pater, \{J. R.\} and Patrick, \{G. N.\} and Pilcher, \{J. E.\} and J. Pinfold and Plane, \{D. E.\} and B. Poli and J. Polok and O. Pooth and M. Przybycien and A. Quadt and K. Rabbertz and C. Rembser and P. Renkel and H. Rick and Roney, \{J. M.\} and S. Rosati and Y. Rozen and K. Runge and K. Sachs and T. Saeki and Sarkisyan, \{E. K.G.\} and Schaile, \{A. D.\} and O. Schaile and P. Scharff-Hansen and J. Schieck and T. Sch{\"o}rner-Sadenius and M. Schr{\"o}der and M. Schumacher and C. Schwick and Scott, \{W. G.\} and R. Seuster and Shears, \{T. G.\} and Shen, \{B. C.\} and P. Sherwood and G. Siroli and A. Skuja and Smith, \{A. M.\} and R. Sobie and S. S{\"o}ldner-Rembold and F. Spano and A. Stahl and K. Stephens and D. Strom and R. Str{\"o}hmer and S. Tarem and M. Tasevsky and Taylor, \{R. J.\} and R. Teuscher and Thomson, \{M. A.\} and E. Torrence and D. Toya and P. Tran and A. Tricoli and I. Trigger and Z. Tr{\'o}cs{\'a}nyi and E. Tsur and Turner-Watson, \{M. F.\} and I. Ueda and B. Ujv{\'a}ri and Vollmer, \{C. F.\} and P. Vannerem and R. V{\'e}rtesi and M. Verzocchi and H. Voss and J. Vossebeld and D. Waller and Ward, \{C. P.\} and Ward, \{D. R.\} and Watkins, \{P. M.\} and Watson, \{A. T.\} and Watson, \{N. K.\} and Wells, \{P. S.\} and T. Wengler and N. Wermes and D. Wetterling and Wilson, \{G. W.\} and Wilson, \{J. A.\} and G. Wolf and Wyatt, \{T. R.\} and S. Yamashita and D. Zer-Zion and L. Zivkovic",

note = "Funding Information: Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and a grant under the MEXT International Science Research Program, ",

year = "2003",

month = may,

day = "1",

doi = "10.1016/S0370-2693(03)00337-X",

language = "אנגלית",

volume = "559",

pages = "131--143",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "3-4",

}

Abbiendi, G, Ainsley, C, Åkesson, PF, Alexander, G, Allison, J, Amaral, P, Anagnostou, G, Anderson, KJ, Arcelli, S, Asai, S, Axen, D, Azuelos, G, Bailey, I, Barberio, E, Barlow, RJ, Batley, RJ, Bechtle, P, Behnke, T, Bell, KW, Bell, PJ, Bella, G, Bellerive, A, Benelli, G, Bethke, S, Biebel, O, Bloodworth, IJ, Boeriu, O, Bock, P, Bonacorsi, D, Boutemeur, M, Braibant, S, Brigliadori, L, Brown, RM, Buesser, K, Burckhart, HJ, Campana, S, Carnegie, RK, Caron, B, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Csilling, A, Cuffiani, M, Dado, S, de Roeck, A, de Wolf, EA, Desch, K, Dienes, B, Donkers, M, Dubbert, J, Duchovni, E, Duckeck, G, Duerdoth, IP, Elfgren, E, Etzion, E, Fabbri, F, Feld, L, Ferrari, P, Fiedler, F, Fleck, I, Ford, M, Frey, A, Fürtjes, A, Gagnon, P, Gary, JW, Gaycken, G, Geich-Gimbel, C, Giacomelli, G, Giacomelli, P, Giunta, M, Goldberg, J, Gross, E, Grunhaus, J, Gruwé, M, Günther, PO, Gupta, A, Hajdu, C, Hamann, M, Hanson, GG, Harder, K, Harel, A, Harin-Dirac, M, Hauschild, M, Hawkes, CM, Hawkings, R, Hemingway, RJ, Hensel, C, Herten, G, Heuer, RD, Hill, JC, Hodman, K, Homer, RJ, Horváth, D, Igo-Kemenes, P, Ishii, K, Jeremie, H, Jovanovic, P, Junk, TR, Kanaya, N, Kanzaki, J, Karapetian, G, Karlen, D, Kawagoe, K, Kawamoto, T, Keeler, RK, Kellogg, RG, Kennedy, BW, Kim, DH, Klein, K, Klier, A, Kluth, S, Kobayashi, T, Kobel, M, Komamiya, S, Kormos, L, Krämer, T, Kress, T, Krieger, P, von Krogh, J, Krop, D, Kruger, K, Kuhl, T, Kupper, M, Lafferty, GD, Landsman, H, Lanske, D, Layter, JG, Leins, A, Lellouch, D, Letts, J, Levinson, L, Lillich, J, Lloyd, SL, Loebinger, FK, Lu, J, Ludwig, J, Macpherson, A, Mader, W, Marcellini, S, Martin, AJ, Masetti, G, Mashimo, T, Mättig, P, McDonald, WJ, McKenna, J, McMahon, TJ, McPherson, RA, Meijers, F, Menges, W, Merritt, FS, Mes, H, Michelini, A, Mihara, S, Mikenberg, G, Miller, DJ, Moed, S, Mohr, W, Mori, T, Mutter, A, Nagai, K, Nakamura, I, Neal, HA, Nisius, R, O'Neale, SW, Oh, A, Okpara, A, Oreglia, MJ, Orito, S, Pahl, C, Pásztor, G, Pater, JR, Patrick, GN, Pilcher, JE, Pinfold, J, Plane, DE, Poli, B, Polok, J, Pooth, O, Przybycien, M, Quadt, A, Rabbertz, K, Rembser, C, Renkel, P, Rick, H, Roney, JM, Rosati, S, Rozen, Y, Runge, K, Sachs, K, Saeki, T, Sarkisyan, EKG, Schaile, AD, Schaile, O, Scharff-Hansen, P, Schieck, J, Schörner-Sadenius, T, Schröder, M, Schumacher, M, Schwick, C, Scott, WG, Seuster, R, Shears, TG, Shen, BC, Sherwood, P, Siroli, G, Skuja, A, Smith, AM, Sobie, R, Söldner-Rembold, S, Spano, F, Stahl, A, Stephens, K, Strom, D, Ströhmer, R, Tarem, S, Tasevsky, M, Taylor, RJ, Teuscher, R, Thomson, MA, Torrence, E, Toya, D, Tran, P, Tricoli, A, Trigger, I, Trócsányi, Z, Tsur, E, Turner-Watson, MF, Ueda, I, Ujvári, B, Vollmer, CF, Vannerem, P, Vértesi, R, Verzocchi, M, Voss, H, Vossebeld, J, Waller, D, Ward, CP, Ward, DR, Watkins, PM, Watson, AT, Watson, NK, Wells, PS, Wengler, T, Wermes, N, Wetterling, D, Wilson, GW, Wilson, JA, Wolf, G, Wyatt, TR, Yamashita, S, Zer-Zion, D & Zivkovic, L 2003, 'Bose-Einstein correlations of π⁰ pairs from hadronic Z⁰ decays', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 559, no. 3-4, pp. 131-143. https://doi.org/10.1016/S0370-2693(03)00337-X

TY - JOUR

T1 - Bose-Einstein correlations of π0 pairs from hadronic Z0 decays

AU - Abbiendi, G.

AU - Ainsley, C.

AU - Åkesson, P. F.

AU - Alexander, G.

AU - Allison, J.

AU - Amaral, P.

AU - Anagnostou, G.

AU - Anderson, K. J.

AU - Arcelli, S.

AU - Asai, S.

AU - Axen, D.

AU - Azuelos, G.

AU - Bailey, I.

AU - Barberio, E.

AU - Barlow, R. J.

AU - Batley, R. J.

AU - Bechtle, P.

AU - Behnke, T.

AU - Bell, K. W.

AU - Bell, P. J.

AU - Bella, G.

AU - Bellerive, A.

AU - Benelli, G.

AU - Bethke, S.

AU - Biebel, O.

AU - Bloodworth, I. J.

AU - Boeriu, O.

AU - Bock, P.

AU - Bonacorsi, D.

AU - Boutemeur, M.

AU - Braibant, S.

AU - Brigliadori, L.

AU - Brown, R. M.

AU - Buesser, K.

AU - Burckhart, H. J.

AU - Campana, S.

AU - Carnegie, R. K.

AU - Caron, B.

AU - Carter, A. A.

AU - Carter, J. R.

AU - Chang, C. Y.

AU - Charlton, D. G.

AU - Csilling, A.

AU - Cuffiani, M.

AU - Dado, S.

AU - de Roeck, A.

AU - de Wolf, E. A.

AU - Desch, K.

AU - Dienes, B.

AU - Donkers, M.

AU - Dubbert, J.

AU - Duchovni, E.

AU - Duckeck, G.

AU - Duerdoth, I. P.

AU - Elfgren, E.

AU - Etzion, E.

AU - Fabbri, F.

AU - Feld, L.

AU - Ferrari, P.

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N1 - Funding Information: Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and a grant under the MEXT International Science Research Program,

PY - 2003/5/1

Y1 - 2003/5/1

N2 - We observe Bose-Einstein correlations in π0 pairs using back-to-back two jet hadronic events from Z0 decays in the data sample collected by the OPAL detector at LEP 1 from 1991 to 1995. Using a static Gaussian picture for the pion emitter source, we obtain the chaoticity parameter λ = 0.55 ± 0.10 ± 0.10 and the source radius R = (0.59 ± 0.08 ± 0.05) fm. According to the JETSET and HERWIG Monte Carlo models, the Bose-Einstein correlations in our data sample largely connect π0s originating from the decays of different hadrons. Prompt pions formed at string break-ups or cluster decays only form a small fraction of the sample.

AB - We observe Bose-Einstein correlations in π0 pairs using back-to-back two jet hadronic events from Z0 decays in the data sample collected by the OPAL detector at LEP 1 from 1991 to 1995. Using a static Gaussian picture for the pion emitter source, we obtain the chaoticity parameter λ = 0.55 ± 0.10 ± 0.10 and the source radius R = (0.59 ± 0.08 ± 0.05) fm. According to the JETSET and HERWIG Monte Carlo models, the Bose-Einstein correlations in our data sample largely connect π0s originating from the decays of different hadrons. Prompt pions formed at string break-ups or cluster decays only form a small fraction of the sample.

UR - https://www.scopus.com/pages/publications/0038642109

U2 - 10.1016/S0370-2693(03)00337-X

DO - 10.1016/S0370-2693(03)00337-X

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AN - SCOPUS:0038642109

SN - 0370-2693

VL - 559

SP - 131

EP - 143

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -

Bose-Einstein correlations of π⁰ pairs from hadronic Z⁰ decays

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