Fermi-Dirac correlations in Λ pairs in hadronic Z decays

R. Barate; D. Decamp; P. Ghez; C. Goy; J. P. Lees; F. Martin; E. Merle; M. N. Minard; B. Pietrzyk; R. Alemany; S. Bravo; M. P. Casado; M. Chmeissani; J. M. Crespo; E. Fernandez; M. Fernandez-Bosman; Ll Garrido; E. Graugès; A. Juste; M. Martinez; G. Merino; R. Miquel; Ll M. Mir; A. Pacheco; I. Riu; H. Ruiz; A. Colaleo; D. Creanza; M. de Palma; G. Iaselli; G. Maggi; M. Maggi; S. Nuzzo; A. Ranieri; G. Raso; F. Ruggieri; G. Selvaggi; L. Silvestris; P. Tempesta; A. Tricomi; G. Zito; X. Huang; J. Lin; Q. Ouyang; T. Wang; Y. Xie; R. Xu; S. Xue; J. Zhang; L. Zhang; W. Zhao; D. Abbaneo; G. Boix; O. Buchmüller; M. Cattaneo; F. Cerutti; V. Ciulli; G. Dissertori; H. Drevermann; R. W. Forty; M. Frank; T. C. Greening; A. W. Halley; J. B. Hansen; J. Harvey; P. Janot; B. Jost; I. Lehraus; O. Leroy; P. Mato; A. Minten; A. Moutoussi; F. Ranjard; L. Rolandi; D. Schlatter; M. Schmitt; O. Schneider; P. Spagnolo; W. Tejessy; F. Teubert; E. Tournefier; A. E. Wright; Z. Ajaltouni; F. Badaud; G. Chazelle; O. Deschamps; A. Falvard; C. Ferdi; P. Gay; C. Guicheney; P. Henrard; J. Jousset; B. Michel; S. Monteil; J. C. Montret; D. Pallin; P. Perret; F. Podlyski; J. D. Hansen; J. R. Hansen; P. H. Hansen; B. S. Nilsson; B. Rensch; A. Wäänänen; G. Daskalakis; A. Kyriakis; C. Markou; E. Simopoulou; I. Siotis; A. Vayaki; A. Blondel; G. Bonneaud; J. C. Brient; A. Rougé; M. Rumpf; M. Swynghedauw; M. Verderi; H. Videau; E. Focardi; G. Parrini; K. Zachariadou; M. Corden; C. Georgiopoulos; A. Antonelli; G. Bencivenni; G. Bologna; F. Bossi; P. Campana; G. Capon; V. Chiarella; P. Laurelli; G. Mannocchi; F. Murtas; G. P. Murtas; L. Passalacqua; M. Pepe-Altarelli; L. Curtis; J. G. Lynch; P. Negus; V. O'Shea; C. Raine; P. Teixeira-Dias; A. S. Thompson; R. Cavanaugh; S. Dhamotharan; C. Geweniger; P. Hanke; G. Hansper; V. Hepp; E. E. Kluge; A. Putzer; J. Sommer; K. Tittel; S. Werner; M. Wunsch; R. Beuselinck; D. M. Binnie; W. Cameron; P. J. Dornan; M. Girone; S. Goodsir; E. B. Martin; N. Marinelli; A. Sciabà; J. K. Sedgbeer; E. Thomson; M. D. Williams; V. M. Ghete; P. Girtler; E. Kneringer; D. Kuhn; G. Rudolph; C. K. Bowdery; P. G. Buck; A. J. Finch; F. Foster; G. Hughes; R. W L Jones; N. A. Robertson; M. I. Williams; I. Giehl; K. Jakobs; K. Kleinknecht; G. Quast; B. Renk; E. Rohne; H. G. Sander; H. Wachsmuth; C. Zeitnitz; J. J. Aubert; A. Bonissent; J. Carr; P. Coyle; P. Payre; D. Rousseau; M. Aleppo; M. Antonelli; F. Ragusa; V. Büscher; H. Dietl; G. Ganis; K. Hüttmann; G. Lütjens; C. Mannert; W. Männer; H. G. Moser; S. Schael; R. Settles; H. Seywerd; H. Stenzel; W. Wiedenmann; G. Wolf; P. Azzurri; J. Boucrot; O. Callot; S. Chen; A. Cordier; M. Davier; L. Duflot; J. F. Grivaz; Ph Heusse; A. Jacholkowska; F. Le Diberder; J. Lefrançois; A. M. Lutz; M. H. Schune; J. J. Veillet; I. Videau; D. Zerwas; G. Bagliesi; T. Boccali; C. Bozzi; G. Calderini; R. Dell'Orso; I. Ferrante; L. Foà; A. Giassi; A. Gregorio; F. Ligabue; P. S. Marrocchesi; A. Messineo; F. Palla; G. Rizzo; G. Sanguinetti; G. Sguazzoni; R. Tenchini; A. Venturi; P. G. Verdini; G. A. Blair; G. Cowan; M. G. Green; T. Medcalf; J. A. Strong; D. R. Botterill; R. W. Clifft; T. R. Edgecock; P. R. Norton; J. C. Thompson; I. R. Tomalin; B. Bloch-Devaux; P. Colas; S. Emery; W. Kozanecki; E. Lançon; M. C. Lemaire; E. Locci; P. Perez; J. Rander; J. F. Renardy; A. Roussarie; J. P. Schuller; J. Schwindling; A. Trabelsi; B. Vallage; S. N. Black; J. H. Dann; R. P. Johnson; H. Y. Kim; N. Konstantinidis; A. M. Litke; M. A. McNeil; G. Taylor; C. N. Booth; S. Cartwright; F. Combley; M. Lehto; L. F. Thompson; K. Affholderbach; A. Böhrer; S. Brandt; C. Grupen; J. Hess; A. Misiejuk; G. Prange; U. Sieler; G. Giannini; B. Gobbo; J. Rothberg; S. Wasserbaech; S. R. Armstrong; P. Elmer; D. P S Ferguson; Y. Gao; S. González; O. J. Hayes; H. Hu; S. Jin; J. Kile; P. A. McNamara; J. Nielsen; W. Orejudos; Y. B. Pan; Y. Saadi; I. J. Scott; J. Walsh; J. H. von Wimmersperg-Toeller; Sau Lan Wu; X. Wu; G. Zobernig

doi:10.1016/S0370-2693(00)00080-0

Fermi-Dirac correlations in Λ pairs in hadronic Z decays

R. Barate^*, D. Decamp, P. Ghez, C. Goy, J. P. Lees, F. Martin, E. Merle, M. N. Minard, B. Pietrzyk, R. Alemany, S. Bravo, M. P. Casado, M. Chmeissani, J. M. Crespo, E. Fernandez, M. Fernandez-Bosman, Ll Garrido, E. Graugès, A. Juste, M. MartinezG. Merino, R. Miquel, Ll M. Mir, A. Pacheco, I. Riu, H. Ruiz, A. Colaleo, D. Creanza, M. de Palma, G. Iaselli, G. Maggi, M. Maggi, S. Nuzzo, A. Ranieri, G. Raso, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, A. Tricomi, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, D. Abbaneo, G. Boix, O. Buchmüller, M. Cattaneo, F. Cerutti, V. Ciulli, G. Dissertori, H. Drevermann, R. W. Forty, M. Frank, T. C. Greening, A. W. Halley, J. B. Hansen, J. Harvey, P. Janot, B. Jost, I. Lehraus, O. Leroy, P. Mato, A. Minten, A. Moutoussi, F. Ranjard, L. Rolandi, D. Schlatter, M. Schmitt, O. Schneider, P. Spagnolo, W. Tejessy, F. Teubert, E. Tournefier, A. E. Wright, Z. Ajaltouni, F. Badaud, G. Chazelle, O. Deschamps, A. Falvard, C. Ferdi, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, S. Monteil, J. C. Montret, D. Pallin, P. Perret, F. Podlyski, J. D. Hansen, J. R. Hansen, P. H. Hansen, B. S. Nilsson, B. Rensch, A. Wäänänen, G. Daskalakis, A. Kyriakis, C. Markou, E. Simopoulou, I. Siotis, A. Vayaki, A. Blondel, G. Bonneaud, J. C. Brient, A. Rougé, M. Rumpf, M. Swynghedauw, M. Verderi, H. Videau, E. Focardi, G. Parrini, K. Zachariadou, M. Corden, C. Georgiopoulos, A. Antonelli, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, P. Laurelli, G. Mannocchi, F. Murtas, G. P. Murtas, L. Passalacqua, M. Pepe-Altarelli, L. Curtis, J. G. Lynch, P. Negus, V. O'Shea, C. Raine, P. Teixeira-Dias, A. S. Thompson, R. Cavanaugh, S. Dhamotharan, C. Geweniger, P. Hanke, G. Hansper, V. Hepp, E. E. Kluge, A. Putzer, J. Sommer, K. Tittel, S. Werner, M. Wunsch, R. Beuselinck, D. M. Binnie, W. Cameron, P. J. Dornan, M. Girone, S. Goodsir, E. B. Martin, N. Marinelli, A. Sciabà, J. K. Sedgbeer, E. Thomson, M. D. Williams, V. M. Ghete, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, C. K. Bowdery, P. G. Buck, A. J. Finch, F. Foster, G. Hughes, R. W L Jones, N. A. Robertson, M. I. Williams, I. Giehl, K. Jakobs, K. Kleinknecht, G. Quast, B. Renk, E. Rohne, H. G. Sander, H. Wachsmuth, C. Zeitnitz, J. J. Aubert, A. Bonissent, J. Carr, P. Coyle, P. Payre, D. Rousseau, M. Aleppo, M. Antonelli, F. Ragusa, V. Büscher, H. Dietl, G. Ganis, K. Hüttmann, G. Lütjens, C. Mannert, W. Männer, H. G. Moser, S. Schael, R. Settles, H. Seywerd, H. Stenzel, W. Wiedenmann, G. Wolf, P. Azzurri, J. Boucrot, O. Callot, S. Chen, A. Cordier, M. Davier, L. Duflot, J. F. Grivaz, Ph Heusse, A. Jacholkowska, F. Le Diberder, J. Lefrançois, A. M. Lutz, M. H. Schune, J. J. Veillet, I. Videau, D. Zerwas, G. Bagliesi, T. Boccali, C. Bozzi, G. Calderini, R. Dell'Orso, I. Ferrante, L. Foà, A. Giassi, A. Gregorio, F. Ligabue, P. S. Marrocchesi, A. Messineo, F. Palla, G. Rizzo, G. Sanguinetti, G. Sguazzoni, R. Tenchini, A. Venturi, P. G. Verdini, G. A. Blair, G. Cowan, M. G. Green, T. Medcalf, J. A. Strong, D. R. Botterill, R. W. Clifft, T. R. Edgecock, P. R. Norton, J. C. Thompson, I. R. Tomalin, B. Bloch-Devaux, P. Colas, S. Emery, W. Kozanecki, E. Lançon, M. C. Lemaire, E. Locci, P. Perez, J. Rander, J. F. Renardy, A. Roussarie, J. P. Schuller, J. Schwindling, A. Trabelsi, B. Vallage, S. N. Black, J. H. Dann, R. P. Johnson, H. Y. Kim, N. Konstantinidis, A. M. Litke, M. A. McNeil, G. Taylor, C. N. Booth, S. Cartwright, F. Combley, M. Lehto, L. F. Thompson, K. Affholderbach, A. Böhrer, S. Brandt, C. Grupen, J. Hess, A. Misiejuk, G. Prange, U. Sieler, G. Giannini, B. Gobbo, J. Rothberg, S. Wasserbaech, S. R. Armstrong, P. Elmer, D. P S Ferguson, Y. Gao, S. González, O. J. Hayes, H. Hu, S. Jin, J. Kile, P. A. McNamara, J. Nielsen, W. Orejudos, Y. B. Pan, Y. Saadi, I. J. Scott, J. Walsh, J. H. von Wimmersperg-Toeller, Sau Lan Wu, X. Wu, G. Zobernig

^*Corresponding author for this work

Physics and Astronomy

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

20 Scopus citations

Abstract

Two-particle correlations of ΛΛ and ΛΛ pairs have been studied in multihadronic Z decays recorded with the ALEPH detector at LEP in the years from 1992 to 1995. The correlations were measured as a function of the four-momentum difference Q of the pair. A depletion of events is observed in the region Q<2 GeV which could arise from the effects of Fermi-Dirac statistics. In addition the spin content of the Λ pair system has been determined. For Q>2 GeV the fraction of pairs with spin one is consistent with the value of 0.75 expected for a statistical spin mixture, whilst for Q>2 GeV this fraction is found to be lower. For ΛΛ pairs, where no Fermi-Dirac correlations are expected, the spin one fraction is measured to be consistent with 0.75 over the entire analysed Q range.

Original language	English (US)
Pages (from-to)	395-406
Number of pages	12
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	475
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(00)00080-0
State	Published - Mar 2 2000

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/S0370-2693(00)00080-0

Cite this

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J. P., Martin, F., Merle, E., Minard, M. N., Pietrzyk, B., Alemany, R., Bravo, S., Casado, M. P., Chmeissani, M., Crespo, J. M., Fernandez, E., Fernandez-Bosman, M., Garrido, L., Graugès, E., Juste, A., ... Zobernig, G. (2000). Fermi-Dirac correlations in Λ pairs in hadronic Z decays. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 475(3-4), 395-406. https://doi.org/10.1016/S0370-2693(00)00080-0

@article{f6ecf57f643545c9993d6c03fb04027e,

title = "Fermi-Dirac correlations in Λ pairs in hadronic Z decays",

abstract = "Two-particle correlations of ΛΛ and ΛΛ pairs have been studied in multihadronic Z decays recorded with the ALEPH detector at LEP in the years from 1992 to 1995. The correlations were measured as a function of the four-momentum difference Q of the pair. A depletion of events is observed in the region Q<2 GeV which could arise from the effects of Fermi-Dirac statistics. In addition the spin content of the Λ pair system has been determined. For Q>2 GeV the fraction of pairs with spin one is consistent with the value of 0.75 expected for a statistical spin mixture, whilst for Q>2 GeV this fraction is found to be lower. For ΛΛ pairs, where no Fermi-Dirac correlations are expected, the spin one fraction is measured to be consistent with 0.75 over the entire analysed Q range.",

author = "R. Barate and D. Decamp and P. Ghez and C. Goy and Lees, {J. P.} and F. Martin and E. Merle and Minard, {M. N.} and B. Pietrzyk and R. Alemany and S. Bravo and Casado, {M. P.} and M. Chmeissani and Crespo, {J. M.} and E. Fernandez and M. Fernandez-Bosman and Ll Garrido and E. Graug{\`e}s and A. Juste and M. Martinez and G. Merino and R. Miquel and Mir, {Ll M.} and A. Pacheco and I. Riu and H. Ruiz and A. Colaleo and D. Creanza and {de Palma}, M. and G. Iaselli and G. Maggi and M. Maggi and S. Nuzzo and A. Ranieri and G. Raso and F. Ruggieri and G. Selvaggi and L. Silvestris and P. Tempesta and A. Tricomi and G. Zito and X. Huang and J. Lin and Q. Ouyang and T. Wang and Y. Xie and R. Xu and S. Xue and J. Zhang and L. Zhang and W. Zhao and D. Abbaneo and G. Boix and O. Buchm{\"u}ller and M. Cattaneo and F. Cerutti and V. Ciulli and G. Dissertori and H. Drevermann and Forty, {R. W.} and M. Frank and Greening, {T. C.} and Halley, {A. W.} and Hansen, {J. B.} and J. Harvey and P. Janot and B. Jost and I. Lehraus and O. Leroy and P. Mato and A. Minten and A. Moutoussi and F. Ranjard and L. Rolandi and D. Schlatter and M. Schmitt and O. Schneider and P. Spagnolo and W. Tejessy and F. Teubert and E. Tournefier and Wright, {A. E.} and Z. Ajaltouni and F. Badaud and G. Chazelle and O. Deschamps and A. Falvard and C. Ferdi and P. Gay and C. Guicheney and P. Henrard and J. Jousset and B. Michel and S. Monteil and Montret, {J. C.} and D. Pallin and P. Perret and F. Podlyski and Hansen, {J. D.} and Hansen, {J. R.} and Hansen, {P. H.} and Nilsson, {B. S.} and B. Rensch and A. W{\"a}{\"a}n{\"a}nen and G. Daskalakis and A. Kyriakis and C. Markou and E. Simopoulou and I. Siotis and A. Vayaki and A. Blondel and G. Bonneaud and Brient, {J. C.} and A. Roug{\'e} and M. Rumpf and M. Swynghedauw and M. Verderi and H. Videau and E. Focardi and G. Parrini and K. Zachariadou and M. Corden and C. Georgiopoulos and A. Antonelli and G. Bencivenni and G. Bologna and F. Bossi and P. Campana and G. Capon and V. Chiarella and P. Laurelli and G. Mannocchi and F. Murtas and Murtas, {G. P.} and L. Passalacqua and M. Pepe-Altarelli and L. Curtis and Lynch, {J. G.} and P. Negus and V. O'Shea and C. Raine and P. Teixeira-Dias and Thompson, {A. S.} and R. Cavanaugh and S. Dhamotharan and C. Geweniger and P. Hanke and G. Hansper and V. Hepp and Kluge, {E. E.} and A. Putzer and J. Sommer and K. Tittel and S. Werner and M. Wunsch and R. Beuselinck and Binnie, {D. M.} and W. Cameron and Dornan, {P. J.} and M. Girone and S. Goodsir and Martin, {E. B.} and N. Marinelli and A. Sciab{\`a} and Sedgbeer, {J. K.} and E. Thomson and Williams, {M. D.} and Ghete, {V. M.} and P. Girtler and E. Kneringer and D. Kuhn and G. Rudolph and Bowdery, {C. K.} and Buck, {P. G.} and Finch, {A. J.} and F. Foster and G. Hughes and Jones, {R. W L} and Robertson, {N. A.} and Williams, {M. I.} and I. Giehl and K. Jakobs and K. Kleinknecht and G. Quast and B. Renk and E. Rohne and Sander, {H. G.} and H. Wachsmuth and C. Zeitnitz and Aubert, {J. J.} and A. Bonissent and J. Carr and P. Coyle and P. Payre and D. Rousseau and M. Aleppo and M. Antonelli and F. Ragusa and V. B{\"u}scher and H. Dietl and G. Ganis and K. H{\"u}ttmann and G. L{\"u}tjens and C. Mannert and W. M{\"a}nner and Moser, {H. G.} and S. Schael and R. Settles and H. Seywerd and H. Stenzel and W. Wiedenmann and G. Wolf and P. Azzurri and J. Boucrot and O. Callot and S. Chen and A. Cordier and M. Davier and L. Duflot and Grivaz, {J. F.} and Ph Heusse and A. Jacholkowska and {Le Diberder}, F. and J. Lefran{\c c}ois and Lutz, {A. M.} and Schune, {M. H.} and Veillet, {J. J.} and I. Videau and D. Zerwas and G. Bagliesi and T. Boccali and C. Bozzi and G. Calderini and R. Dell'Orso and I. Ferrante and L. Fo{\`a} and A. Giassi and A. Gregorio and F. Ligabue and Marrocchesi, {P. S.} and A. Messineo and F. Palla and G. Rizzo and G. Sanguinetti and G. Sguazzoni and R. Tenchini and A. Venturi and Verdini, {P. G.} and Blair, {G. A.} and G. Cowan and Green, {M. G.} and T. Medcalf and Strong, {J. A.} and Botterill, {D. R.} and Clifft, {R. W.} and Edgecock, {T. R.} and Norton, {P. R.} and Thompson, {J. C.} and Tomalin, {I. R.} and B. Bloch-Devaux and P. Colas and S. Emery and W. Kozanecki and E. Lan{\c c}on and Lemaire, {M. C.} and E. Locci and P. Perez and J. Rander and Renardy, {J. F.} and A. Roussarie and Schuller, {J. P.} and J. Schwindling and A. Trabelsi and B. Vallage and Black, {S. N.} and Dann, {J. H.} and Johnson, {R. P.} and Kim, {H. Y.} and N. Konstantinidis and Litke, {A. M.} and McNeil, {M. A.} and G. Taylor and Booth, {C. N.} and S. Cartwright and F. Combley and M. Lehto and Thompson, {L. F.} and K. Affholderbach and A. B{\"o}hrer and S. Brandt and C. Grupen and J. Hess and A. Misiejuk and G. Prange and U. Sieler and G. Giannini and B. Gobbo and J. Rothberg and S. Wasserbaech and Armstrong, {S. R.} and P. Elmer and Ferguson, {D. P S} and Y. Gao and S. Gonz{\'a}lez and Hayes, {O. J.} and H. Hu and S. Jin and J. Kile and McNamara, {P. A.} and J. Nielsen and W. Orejudos and Pan, {Y. B.} and Y. Saadi and Scott, {I. J.} and J. Walsh and {von Wimmersperg-Toeller}, {J. H.} and Wu, {Sau Lan} and X. Wu and G. Zobernig",

year = "2000",

month = mar,

day = "2",

doi = "10.1016/S0370-2693(00)00080-0",

language = "English (US)",

volume = "475",

pages = "395--406",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "3-4",

}

Barate, R, Decamp, D, Ghez, P, Goy, C, Lees, JP, Martin, F, Merle, E, Minard, MN, Pietrzyk, B, Alemany, R, Bravo, S, Casado, MP, Chmeissani, M, Crespo, JM, Fernandez, E, Fernandez-Bosman, M, Garrido, L, Graugès, E, Juste, A, Martinez, M, Merino, G, Miquel, R, Mir, LM, Pacheco, A, Riu, I, Ruiz, H, Colaleo, A, Creanza, D, de Palma, M, Iaselli, G, Maggi, G, Maggi, M, Nuzzo, S, Ranieri, A, Raso, G, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Tricomi, A, Zito, G, Huang, X, Lin, J, Ouyang, Q, Wang, T, Xie, Y, Xu, R, Xue, S, Zhang, J, Zhang, L, Zhao, W, Abbaneo, D, Boix, G, Buchmüller, O, Cattaneo, M, Cerutti, F, Ciulli, V, Dissertori, G, Drevermann, H, Forty, RW, Frank, M, Greening, TC, Halley, AW, Hansen, JB, Harvey, J, Janot, P, Jost, B, Lehraus, I, Leroy, O, Mato, P, Minten, A, Moutoussi, A, Ranjard, F, Rolandi, L, Schlatter, D, Schmitt, M, Schneider, O, Spagnolo, P, Tejessy, W, Teubert, F, Tournefier, E, Wright, AE, Ajaltouni, Z, Badaud, F, Chazelle, G, Deschamps, O, Falvard, A, Ferdi, C, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, JC, Pallin, D, Perret, P, Podlyski, F, Hansen, JD, Hansen, JR, Hansen, PH, Nilsson, BS, Rensch, B, Wäänänen, A, Daskalakis, G, Kyriakis, A, Markou, C, Simopoulou, E, Siotis, I, Vayaki, A, Blondel, A, Bonneaud, G, Brient, JC, Rougé, A, Rumpf, M, Swynghedauw, M, Verderi, M, Videau, H, Focardi, E, Parrini, G, Zachariadou, K, Corden, M, Georgiopoulos, C, Antonelli, A, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, GP, Passalacqua, L, Pepe-Altarelli, M, Curtis, L, Lynch, JG, Negus, P, O'Shea, V, Raine, C, Teixeira-Dias, P, Thompson, AS, Cavanaugh, R, Dhamotharan, S, Geweniger, C, Hanke, P, Hansper, G, Hepp, V, Kluge, EE, Putzer, A, Sommer, J, Tittel, K, Werner, S, Wunsch, M, Beuselinck, R, Binnie, DM, Cameron, W, Dornan, PJ, Girone, M, Goodsir, S, Martin, EB, Marinelli, N, Sciabà, A, Sedgbeer, JK, Thomson, E, Williams, MD, Ghete, VM, Girtler, P, Kneringer, E, Kuhn, D, Rudolph, G, Bowdery, CK, Buck, PG, Finch, AJ, Foster, F, Hughes, G, Jones, RWL, Robertson, NA, Williams, MI, Giehl, I, Jakobs, K, Kleinknecht, K, Quast, G, Renk, B, Rohne, E, Sander, HG, Wachsmuth, H, Zeitnitz, C, Aubert, JJ, Bonissent, A, Carr, J, Coyle, P, Payre, P, Rousseau, D, Aleppo, M, Antonelli, M, Ragusa, F, Büscher, V, Dietl, H, Ganis, G, Hüttmann, K, Lütjens, G, Mannert, C, Männer, W, Moser, HG, Schael, S, Settles, R, Seywerd, H, Stenzel, H, Wiedenmann, W, Wolf, G, Azzurri, P, Boucrot, J, Callot, O, Chen, S, Cordier, A, Davier, M, Duflot, L, Grivaz, JF, Heusse, P, Jacholkowska, A, Le Diberder, F, Lefrançois, J, Lutz, AM, Schune, MH, Veillet, JJ, Videau, I, Zerwas, D, Bagliesi, G, Boccali, T, Bozzi, C, Calderini, G, Dell'Orso, R, Ferrante, I, Foà, L, Giassi, A, Gregorio, A, Ligabue, F, Marrocchesi, PS, Messineo, A, Palla, F, Rizzo, G, Sanguinetti, G, Sguazzoni, G, Tenchini, R, Venturi, A, Verdini, PG, Blair, GA, Cowan, G, Green, MG, Medcalf, T, Strong, JA, Botterill, DR, Clifft, RW, Edgecock, TR, Norton, PR, Thompson, JC, Tomalin, IR, Bloch-Devaux, B, Colas, P, Emery, S, Kozanecki, W, Lançon, E, Lemaire, MC, Locci, E, Perez, P, Rander, J, Renardy, JF, Roussarie, A, Schuller, JP, Schwindling, J, Trabelsi, A, Vallage, B, Black, SN, Dann, JH, Johnson, RP, Kim, HY, Konstantinidis, N, Litke, AM, McNeil, MA, Taylor, G, Booth, CN, Cartwright, S, Combley, F, Lehto, M, Thompson, LF, Affholderbach, K, Böhrer, A, Brandt, S, Grupen, C, Hess, J, Misiejuk, A, Prange, G, Sieler, U, Giannini, G, Gobbo, B, Rothberg, J, Wasserbaech, S, Armstrong, SR, Elmer, P, Ferguson, DPS, Gao, Y, González, S, Hayes, OJ, Hu, H, Jin, S, Kile, J, McNamara, PA, Nielsen, J, Orejudos, W, Pan, YB, Saadi, Y, Scott, IJ, Walsh, J, von Wimmersperg-Toeller, JH, Wu, SL, Wu, X & Zobernig, G 2000, 'Fermi-Dirac correlations in Λ pairs in hadronic Z decays', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 475, no. 3-4, pp. 395-406. https://doi.org/10.1016/S0370-2693(00)00080-0

TY - JOUR

T1 - Fermi-Dirac correlations in Λ pairs in hadronic Z decays

AU - Barate, R.

AU - Decamp, D.

AU - Ghez, P.

AU - Goy, C.

AU - Lees, J. P.

AU - Martin, F.

AU - Merle, E.

AU - Minard, M. N.

AU - Pietrzyk, B.

AU - Alemany, R.

AU - Bravo, S.

AU - Casado, M. P.

AU - Chmeissani, M.

AU - Crespo, J. M.

AU - Fernandez, E.

AU - Fernandez-Bosman, M.

AU - Garrido, Ll

AU - Graugès, E.

AU - Juste, A.

AU - Martinez, M.

AU - Merino, G.

AU - Miquel, R.

AU - Mir, Ll M.

AU - Pacheco, A.

AU - Riu, I.

AU - Ruiz, H.

AU - Colaleo, A.

AU - Creanza, D.

AU - de Palma, M.

AU - Iaselli, G.

AU - Maggi, G.

AU - Maggi, M.

AU - Nuzzo, S.

AU - Ranieri, A.

AU - Raso, G.

AU - Ruggieri, F.

AU - Selvaggi, G.

AU - Silvestris, L.

AU - Tempesta, P.

AU - Tricomi, A.

AU - Zito, G.

AU - Huang, X.

AU - Lin, J.

AU - Ouyang, Q.

AU - Wang, T.

AU - Xie, Y.

AU - Xu, R.

AU - Xue, S.

AU - Zhang, J.

AU - Zhang, L.

AU - Zhao, W.

AU - Abbaneo, D.

AU - Boix, G.

AU - Buchmüller, O.

AU - Cattaneo, M.

AU - Cerutti, F.

AU - Ciulli, V.

AU - Dissertori, G.

AU - Drevermann, H.

AU - Forty, R. W.

AU - Frank, M.

AU - Greening, T. C.

AU - Halley, A. W.

AU - Hansen, J. B.

AU - Harvey, J.

AU - Janot, P.

AU - Jost, B.

AU - Lehraus, I.

AU - Leroy, O.

AU - Mato, P.

AU - Minten, A.

AU - Moutoussi, A.

AU - Ranjard, F.

AU - Rolandi, L.

AU - Schlatter, D.

AU - Schmitt, M.

AU - Schneider, O.

AU - Spagnolo, P.

AU - Tejessy, W.

AU - Teubert, F.

AU - Tournefier, E.

AU - Wright, A. E.

AU - Ajaltouni, Z.

AU - Badaud, F.

AU - Chazelle, G.

AU - Deschamps, O.

AU - Falvard, A.

AU - Ferdi, C.

AU - Gay, P.

AU - Guicheney, C.

AU - Henrard, P.

AU - Jousset, J.

AU - Michel, B.

AU - Monteil, S.

AU - Montret, J. C.

AU - Pallin, D.

AU - Perret, P.

AU - Podlyski, F.

AU - Hansen, J. D.

AU - Hansen, J. R.

AU - Hansen, P. H.

AU - Nilsson, B. S.

AU - Rensch, B.

AU - Wäänänen, A.

AU - Daskalakis, G.

AU - Kyriakis, A.

AU - Markou, C.

AU - Simopoulou, E.

AU - Siotis, I.

AU - Vayaki, A.

AU - Blondel, A.

AU - Bonneaud, G.

AU - Brient, J. C.

AU - Rougé, A.

AU - Rumpf, M.

AU - Swynghedauw, M.

AU - Verderi, M.

AU - Videau, H.

AU - Focardi, E.

AU - Parrini, G.

AU - Zachariadou, K.

AU - Corden, M.

AU - Georgiopoulos, C.

AU - Antonelli, A.

AU - Bencivenni, G.

AU - Bologna, G.

AU - Bossi, F.

AU - Campana, P.

AU - Capon, G.

AU - Chiarella, V.

AU - Laurelli, P.

AU - Mannocchi, G.

AU - Murtas, F.

AU - Murtas, G. P.

AU - Passalacqua, L.

AU - Pepe-Altarelli, M.

AU - Curtis, L.

AU - Lynch, J. G.

AU - Negus, P.

AU - O'Shea, V.

AU - Raine, C.

AU - Teixeira-Dias, P.

AU - Thompson, A. S.

AU - Cavanaugh, R.

AU - Dhamotharan, S.

AU - Geweniger, C.

AU - Hanke, P.

AU - Hansper, G.

AU - Hepp, V.

AU - Kluge, E. E.

AU - Putzer, A.

AU - Sommer, J.

AU - Tittel, K.

AU - Werner, S.

AU - Wunsch, M.

AU - Beuselinck, R.

AU - Binnie, D. M.

AU - Cameron, W.

AU - Dornan, P. J.

AU - Girone, M.

AU - Goodsir, S.

AU - Martin, E. B.

AU - Marinelli, N.

AU - Sciabà, A.

AU - Sedgbeer, J. K.

AU - Thomson, E.

AU - Williams, M. D.

AU - Ghete, V. M.

AU - Girtler, P.

AU - Kneringer, E.

AU - Kuhn, D.

AU - Rudolph, G.

AU - Bowdery, C. K.

AU - Buck, P. G.

AU - Finch, A. J.

AU - Foster, F.

AU - Hughes, G.

AU - Jones, R. W L

AU - Robertson, N. A.

AU - Williams, M. I.

AU - Giehl, I.

AU - Jakobs, K.

AU - Kleinknecht, K.

AU - Quast, G.

AU - Renk, B.

AU - Rohne, E.

AU - Sander, H. G.

AU - Wachsmuth, H.

AU - Zeitnitz, C.

AU - Aubert, J. J.

AU - Bonissent, A.

AU - Carr, J.

AU - Coyle, P.

AU - Payre, P.

AU - Rousseau, D.

AU - Aleppo, M.

AU - Antonelli, M.

AU - Ragusa, F.

AU - Büscher, V.

AU - Dietl, H.

AU - Ganis, G.

AU - Hüttmann, K.

AU - Lütjens, G.

AU - Mannert, C.

AU - Männer, W.

AU - Moser, H. G.

AU - Schael, S.

AU - Settles, R.

AU - Seywerd, H.

AU - Stenzel, H.

AU - Wiedenmann, W.

AU - Wolf, G.

AU - Azzurri, P.

AU - Boucrot, J.

AU - Callot, O.

AU - Chen, S.

AU - Cordier, A.

AU - Davier, M.

AU - Duflot, L.

AU - Grivaz, J. F.

AU - Heusse, Ph

AU - Jacholkowska, A.

AU - Le Diberder, F.

AU - Lefrançois, J.

AU - Lutz, A. M.

AU - Schune, M. H.

AU - Veillet, J. J.

AU - Videau, I.

AU - Zerwas, D.

AU - Bagliesi, G.

AU - Boccali, T.

AU - Bozzi, C.

AU - Calderini, G.

AU - Dell'Orso, R.

AU - Ferrante, I.

AU - Foà, L.

AU - Giassi, A.

AU - Gregorio, A.

AU - Ligabue, F.

AU - Marrocchesi, P. S.

AU - Messineo, A.

AU - Palla, F.

AU - Rizzo, G.

AU - Sanguinetti, G.

AU - Sguazzoni, G.

AU - Tenchini, R.

AU - Venturi, A.

AU - Verdini, P. G.

AU - Blair, G. A.

AU - Cowan, G.

AU - Green, M. G.

AU - Medcalf, T.

AU - Strong, J. A.

AU - Botterill, D. R.

AU - Clifft, R. W.

AU - Edgecock, T. R.

AU - Norton, P. R.

AU - Thompson, J. C.

AU - Tomalin, I. R.

AU - Bloch-Devaux, B.

AU - Colas, P.

AU - Emery, S.

AU - Kozanecki, W.

AU - Lançon, E.

AU - Lemaire, M. C.

AU - Locci, E.

AU - Perez, P.

AU - Rander, J.

AU - Renardy, J. F.

AU - Roussarie, A.

AU - Schuller, J. P.

AU - Schwindling, J.

AU - Trabelsi, A.

AU - Vallage, B.

AU - Black, S. N.

AU - Dann, J. H.

AU - Johnson, R. P.

AU - Kim, H. Y.

AU - Konstantinidis, N.

AU - Litke, A. M.

AU - McNeil, M. A.

AU - Taylor, G.

AU - Booth, C. N.

AU - Cartwright, S.

AU - Combley, F.

AU - Lehto, M.

AU - Thompson, L. F.

AU - Affholderbach, K.

AU - Böhrer, A.

AU - Brandt, S.

AU - Grupen, C.

AU - Hess, J.

AU - Misiejuk, A.

AU - Prange, G.

AU - Sieler, U.

AU - Giannini, G.

AU - Gobbo, B.

AU - Rothberg, J.

AU - Wasserbaech, S.

AU - Armstrong, S. R.

AU - Elmer, P.

AU - Ferguson, D. P S

AU - Gao, Y.

AU - González, S.

AU - Hayes, O. J.

AU - Hu, H.

AU - Jin, S.

AU - Kile, J.

AU - McNamara, P. A.

AU - Nielsen, J.

AU - Orejudos, W.

AU - Pan, Y. B.

AU - Saadi, Y.

AU - Scott, I. J.

AU - Walsh, J.

AU - von Wimmersperg-Toeller, J. H.

AU - Wu, Sau Lan

AU - Wu, X.

AU - Zobernig, G.

PY - 2000/3/2

Y1 - 2000/3/2

N2 - Two-particle correlations of ΛΛ and ΛΛ pairs have been studied in multihadronic Z decays recorded with the ALEPH detector at LEP in the years from 1992 to 1995. The correlations were measured as a function of the four-momentum difference Q of the pair. A depletion of events is observed in the region Q<2 GeV which could arise from the effects of Fermi-Dirac statistics. In addition the spin content of the Λ pair system has been determined. For Q>2 GeV the fraction of pairs with spin one is consistent with the value of 0.75 expected for a statistical spin mixture, whilst for Q>2 GeV this fraction is found to be lower. For ΛΛ pairs, where no Fermi-Dirac correlations are expected, the spin one fraction is measured to be consistent with 0.75 over the entire analysed Q range.

AB - Two-particle correlations of ΛΛ and ΛΛ pairs have been studied in multihadronic Z decays recorded with the ALEPH detector at LEP in the years from 1992 to 1995. The correlations were measured as a function of the four-momentum difference Q of the pair. A depletion of events is observed in the region Q<2 GeV which could arise from the effects of Fermi-Dirac statistics. In addition the spin content of the Λ pair system has been determined. For Q>2 GeV the fraction of pairs with spin one is consistent with the value of 0.75 expected for a statistical spin mixture, whilst for Q>2 GeV this fraction is found to be lower. For ΛΛ pairs, where no Fermi-Dirac correlations are expected, the spin one fraction is measured to be consistent with 0.75 over the entire analysed Q range.

UR - http://www.scopus.com/inward/record.url?scp=0034594840&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034594840&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(00)00080-0

DO - 10.1016/S0370-2693(00)00080-0

M3 - Article

AN - SCOPUS:0034594840

SN - 0370-2693

VL - 475

SP - 395

EP - 406

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 -

Fermi-Dirac correlations in Λ pairs in hadronic Z decays

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