The decays eta --> gammagamma and eta' --> etapi+pi- have been observed in hadronic decays of the Z produced at LEP. The fragmentation functions of both the eta and eta' have been measured. The measured multiplicities for x > 0.1 are 0.298 +/- 0.023 +/- 0.021 and 0.068 +/- 0.018 +/- 0.016 for eta and eta' respectively. While the fragmentation function for the eta is fairly well described by the JETSET Monte Carlo, it is found that the production rate of the eta' is a factor of four less than the corresponding prediction.
Measurement of the production rates of η and η′ in hadronic Z decays / Buskulic, D; Decamp, D; Goy, C; Lees, Jp; Minard, Mn; Mours, B; Alemany, R; Ariztizabal, F; Comas, P; Crespo, Jm; Delfino, M; Fernandez, E; Gaitan, V; Garrido, L; Pacheco, A; Pascual, A; Creanza, D; Depalma, M; Farilla, A; Iaselli, G; Maggi, G; Maggi, M; Natali, S; Nuzzo, S; Quattromini, M; Ranieri, A; Raso, G; Romano, F; Ruggieri, F; Selvaggi, G; Silvestris, L; Tempesta, P; Zito, G; Gao, Y; H, Hu; Huang, D; Huang, X; Lin, J; Lou, J; Qiao, C; Wang, T; Xie, Y; Xu, D; Xu, R; Zhang, J; Zhao, W; Atwood, Wb; Bauerdick, Lat; Blucher, E; Bonvicini, G; Bossi, F; Boudreau, J; Burnett, Th; Drevermann, H; Forty, Rw; Hagelberg, R; Harvey, J; Haywood, S; Hilgart, J; Jacobsen, R; Jost, B; Knobloch, J; Lancon, E; Lehraus, I; Lohse, T; Lusiani, A; Martinez, M; Mato, P; Mattison, T; Meinhard, H; Menary, S; Meyer, T; Minten, A; Miquel, R; Moser, Hg; Nash, J; Palazzi, P; Perlas, Ja; Ranjard, F; Redlinger, G; Rolandi, L; Roth, A; Rothberg, J; Ruan, T; Saich, M; Schlatter, D; Schmelling, M; Sefkow, F; Tejessy, W; Wachsmuth, H; Wiedenmann, W; Wildish, T; Witzeling, W; Wotschack, J; Ajaltouni, Z; Badaud, F; Bardadinotwinowska, M; Bencheikh, Am; Elfellous, R; Falvard, A; Gay, P; Guicheney, C; Henrard, P; Jousset, J; Michel, B; Montret, Jc; Pallin, D; Perret, P; Pietrzyk, B; Proriol, J; Prulhiere, F; Stimpfl, G; Fearnley, T; Hansen, Jd; Hansen, Jr; Hansen, Ph; Mollerud, R; Nilsson, Bs; Efthymiopoulos, I; Kyriakis, A; Simopoulou, E; Vayaki, A; Zachariadou, K; Badier, J; Blondel, A; Bonneaud, G; Brient, Jc; Fouque, G; Gamess, A; Orteu, S; Rosowsky, A; Rouge, A; Rumpf, M; Tanaka, R; Videau, H; Candlin, Dj; Parsons, Mi; Veitch, E; Moneta, L; Parrini, G; Corden, M; Georgiopoulos, C; Ikeda, M; Lannutti, J; Levinthal, D; Mermikides, M; Sawyer, L; Wasserbaech, S; Antonelli, A; Baldini, R; Bencivenni, G; Bologna, G; Campana, P; Capon, G; Cerutti, F; Chiarella, V; Dettorrepiazzoli, B; Felici, G; Laurelli, P; Mannocchi, G; Murtas, F; Murtas, Gp; Passalacqua, L; Pepealtarelli, M; Picchi, P; Altoon, B; Boyle, O; Colrain, P; Tenhave, I; Lynch, Jg; Maitland, W; Morton, Wt; Raine, C; Scarr, Jm; Smith, K; Thompson, As; Turnbull, Rm; Brandl, B; Braun, O; Geiges, R; Geweniger, C; Hanke, P; Hepp, V; Kluge, Ee; Maumary, Y; Putzer, A; Rensch, B; Stahl, A; Tittel, K; Wunsch, M; Belk, At; Beuselinck, R; Binnie, Dm; Cameron, W; Cattaneo, M; Colling, Dj; Dornan, Pj; Dugeay, S; Greene, Am; Hassard, Jf; Lieske, Nm; Patton, Sj; Payne, Dg; Phillips, Mj; Sedgbeer, Jk; Tomalin, Ir; Wright, Ag; Kneringer, E; Kuhn, D; Rudolph, G; Bowdery, Ck; Brodbeck, Tj; Finch, Aj; Foster, F; Hughes, G; Jackson, D; Keemer, Nr; Nuttall, M; Patel, A; Sloan, T; Snow, Sw; Whelan, Ep; Barczewski, T; Kleinknecht, K; Raab, J; Renk, B; Roehn, S; Sander, Hg; Schmidt, H; Steeg, F; Walther, Sm; Wolf, B; Aubert, Jj; Benchouk, C; Bernard, V; Bonissent, A; Carr, J; Coyle, P; Drinkard, J; Etienne, F; Papalexiou, S; Payre, P; Qian, Z; Rousseau, D; Schwemling, P; Talby, M; Adlung, S; Bauer, C; Blum, W; Brown, D; Cowan, G; Dehning, B; Dietl, H; Dydak, F; Fernandezbosman, M; Frank, M; Halley, Aw; Lauber, J; Lutjens, G; Lutz, G; Manner, W; Richter, R; Schroder, J; Schwarz, As; Settles, R; Seywerd, H; Stierlin, U; Stiegler, U; Stdenis, R; Takashima, M; Thomas, J; Wolf, G; Bertin, V; Boucrot, J; Callot, O; Chen, X; Cordier, A; Davier, M; Grivaz, Jf; Heusse, P; Janot, P; Kim, Dw; Lediberder, F; Lefrancois, J; Lutz, Am; Schune, Mh; Veillet, Jj; Videau, I; Zhang, Z; Zomer, F; Abbaneo, D; Amendolia, Sr; Bagliesi, G; Batignani, G; Bosisio, L; Bottigli, U; Bradaschia, C; Carpinelli, M; Ciocci, Ma; Dellorso, R; Ferrante, I; Fidecaro, F; Foa, L; Focardi, E; Forti, F; Giassi, A; Giorgi, Ma; Ligabue, F; Mannelli, Eb; Marrocchesi, Ps; Messineo, A; Palla, F; Rizzo, G; Sanguinetti, G; Steinberger, J; Tenchini, R; Tonelli, G; Triggiani, G; Vannini, C; Venturi, A; Verdini, Pg; Walsh, J; Carter, Jm; Green, Mg; March, Pv; Mir, Lm; Medcalf, T; Quazi, Is; Strong, Ja; West, Lr; Botterill, Dr; Clifft, Rw; Edgecock, Tr; Edwards, M; Fisher, Sm; Jones, Tj; Norton, Pr; Salmon, Dp; Thompson, Jc; Blochdevaux, B; Colas, P; Kozanecki, W; Lemaire, Mc; Locci, E; Loucatos, S; Monnier, E; Perez, P; Perrier, F; Rander, J; Renardy, Jf; Roussarie, A; Schuller, Jp; Schwindling, J; Mohand, Ds; Vallage, B; Johnson, Rp; Litke, Am; Taylor, G; Wear, J; Ashman, Jg; Babbage, W; Booth, Cn; Buttar, C; Carney, Re; Cartwright, S; Combley, F; Hatfield, F; Reeves, P; Thompson, Lf; Barberio, E; Brandt, S; Grupen, C; Mirabito, L; Schafer, U; Ganis, G; Giannini, G; Gobbo, B; Ragusa, F; Bellantoni, L; Cinabro, D; Conway, Js; Cowen, Df; Feng, Z; Ferguson, Dps; Gao, Ys; Grahl, J; Harton, Jl; Jared, Rc; Leclaire, Bw; Lishka, C; Pan, Yb; Pater, Jr; Pusztaszeri, Jf; Saadi, Y; Sharma, V; Schmitt, M; Shi, Zh; Walsh, Am; Weber, Fv; Whitney, Mh; Wu, Sl; Wu, X; Zobernig, G. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 292:1-2(1992), pp. 210-220. [10.1016/0370-2693(92)90633-F]
Measurement of the production rates of η and η′ in hadronic Z decays
Buskulic D; Decamp D; Goy C; Lees Jp; Minard Mn; Mours B; Alemany R; Ariztizabal F; Comas P; Crespo Jm; Delfino M; Fernandez E; Gaitan V; Garrido L; Pacheco A; Pascual A; Creanza D ;Depalma M; Farilla A; Iaselli G ;Maggi G ;Maggi M; Natali S; Nuzzo S; Quattromini M; Ranieri A; Raso G; Romano F; Ruggieri F; Selvaggi G; Silvestris L; Tempesta P; Zito G; Gao Y; Hu H; Huang D; Huang X; Lin J; Lou J; Qiao C; Wang T; Xie Y; Xu D; Xu R; Zhang J; Zhao W; Atwood Wb; Bauerdick Lat; Blucher E; Bonvicini G; Bossi F; Boudreau J; Burnett Th; Drevermann H; Forty Rw; Hagelberg R; Harvey J; Haywood S; Hilgart J; Jacobsen R; Jost B; Knobloch J; Lancon E; Lehraus I; Lohse T; Lusiani A; Martinez M; Mato P; Mattison T; Meinhard H; Menary S; Meyer T; Minten A; Miquel R; Moser Hg; Nash J; Palazzi P; Perlas Ja; Ranjard F; Redlinger G; Rolandi L; Roth A; Rothberg J; Ruan T; Saich M; Schlatter D; Schmelling M; Sefkow F; Tejessy W; Wachsmuth H; Wiedenmann W; Wildish T; Witzeling W; Wotschack J; Ajaltouni Z; Badaud F; Bardadinotwinowska M; Bencheikh Am; Elfellous R; Falvard A; Gay P; Guicheney C; Henrard P; Jousset J; Michel B; Montret Jc; Pallin D; Perret P; Pietrzyk B; Proriol J; Prulhiere F; Stimpfl G; Fearnley T; Hansen Jd; Hansen Jr; Hansen Ph; Mollerud R; Nilsson Bs; Efthymiopoulos I; Kyriakis A; Simopoulou E; Vayaki A; Zachariadou K; Badier J; Blondel A; Bonneaud G; Brient Jc; Fouque G; Gamess A; Orteu S; Rosowsky A; Rouge A; Rumpf M; Tanaka R; Videau H; Candlin Dj; Parsons Mi; Veitch E; Moneta L; Parrini G; Corden M; Georgiopoulos C; Ikeda M; Lannutti J; Levinthal D; Mermikides M; Sawyer L; Wasserbaech S; Antonelli A; Baldini R; Bencivenni G; Bologna G; Campana P; Capon G; Cerutti F; Chiarella V; Dettorrepiazzoli B; Felici G; Laurelli P; Mannocchi G; Murtas F; Murtas Gp; Passalacqua L; Pepealtarelli M; Picchi P; Altoon B; Boyle O; Colrain P; Tenhave I; Lynch Jg; Maitland W; Morton Wt; Raine C; Scarr Jm; Smith K; Thompson As; Turnbull Rm; Brandl B; Braun O; Geiges R; Geweniger C; Hanke P; Hepp V; Kluge Ee; Maumary Y; Putzer A; Rensch B; Stahl A; Tittel K; Wunsch M; Belk At; Beuselinck R; Binnie Dm; Cameron W; Cattaneo M; Colling Dj; Dornan Pj; Dugeay S; Greene Am; Hassard Jf; Lieske Nm; Patton Sj; Payne Dg; Phillips Mj; Sedgbeer Jk; Tomalin Ir; Wright Ag; Kneringer E; Kuhn D; Rudolph G; Bowdery Ck; Brodbeck Tj; Finch Aj; Foster F; Hughes G; Jackson D; Keemer Nr; Nuttall M; Patel A; Sloan T; Snow Sw; Whelan Ep; Barczewski T; Kleinknecht K; Raab J; Renk B; Roehn S; Sander Hg; Schmidt H; Steeg F; Walther Sm; Wolf B; Aubert Jj; Benchouk C; Bernard V; Bonissent A; Carr J; Coyle P; Drinkard J; Etienne F; Papalexiou S; Payre P; Qian Z; Rousseau D; Schwemling P; Talby M; Adlung S; Bauer C; Blum W; Brown D; Cowan G; Dehning B; Dietl H; Dydak F; Fernandezbosman M; Frank M; Halley Aw; Lauber J; Lutjens G; Lutz G; Manner W; Richter R; Schroder J; Schwarz As; Settles R; Seywerd H; Stierlin U; Stiegler U; Stdenis R; Takashima M; Thomas J; Wolf G; Bertin V; Boucrot J; Callot O; Chen X; Cordier A; Davier M; Grivaz Jf; Heusse P; Janot P; Kim Dw; Lediberder F; Lefrancois J; Lutz Am; Schune Mh; Veillet Jj; Videau I; Zhang Z; Zomer F; Abbaneo D; Amendolia Sr; Bagliesi G; Batignani G; Bosisio L; Bottigli U; Bradaschia C; Carpinelli M; Ciocci Ma; Dellorso R; Ferrante I; Fidecaro F; Foa L; Focardi E; Forti F; Giassi A; Giorgi Ma; Ligabue F; Mannelli Eb; Marrocchesi Ps; Messineo A; Palla F; Rizzo G; Sanguinetti G; Steinberger J; Tenchini R; Tonelli G; Triggiani G; Vannini C; Venturi A; Verdini Pg; Walsh J; Carter Jm; Green Mg; March Pv; Mir Lm; Medcalf T; Quazi Is; Strong Ja; West Lr; Botterill Dr; Clifft Rw; Edgecock Tr; Edwards M; Fisher Sm; Jones Tj; Norton Pr; Salmon Dp; Thompson Jc; Blochdevaux B; Colas P; Kozanecki W; Lemaire Mc; Locci E; Loucatos S; Monnier E; Perez P; Perrier F; Rander J; Renardy Jf; Roussarie A; Schuller Jp; Schwindling J; Mohand Ds; Vallage B; Johnson Rp; Litke Am; Taylor G; Wear J; Ashman Jg; Babbage W; Booth Cn; Buttar C; Carney Re; Cartwright S; Combley F; Hatfield F; Reeves P; Thompson Lf; Barberio E; Brandt S; Grupen C; Mirabito L; Schafer U; Ganis G; Giannini G; Gobbo B; Ragusa F; Bellantoni L; Cinabro D; Conway Js; Cowen Df; Feng Z; Ferguson Dps; Gao Ys; Grahl J; Harton Jl; Jared Rc; Leclaire Bw; Lishka C; Pan Yb; Pater Jr; Pusztaszeri Jf; Saadi Y; Sharma V; Schmitt M; Shi Zh; Walsh Am; Weber Fv; Whitney Mh; Wu Sl; Wu X; Zobernig G
1992-01-01
Abstract
The decays eta --> gammagamma and eta' --> etapi+pi- have been observed in hadronic decays of the Z produced at LEP. The fragmentation functions of both the eta and eta' have been measured. The measured multiplicities for x > 0.1 are 0.298 +/- 0.023 +/- 0.021 and 0.068 +/- 0.018 +/- 0.016 for eta and eta' respectively. While the fragmentation function for the eta is fairly well described by the JETSET Monte Carlo, it is found that the production rate of the eta' is a factor of four less than the corresponding prediction.
Citazione
Measurement of the production rates of η and η′ in hadronic Z decays / Buskulic, D; Decamp, D; Goy, C; Lees, Jp; Minard, Mn; Mours, B; Alemany, R; Ariztizabal, F; Comas, P; Crespo, Jm; Delfino, M; Fernandez, E; Gaitan, V; Garrido, L; Pacheco, A; Pascual, A; Creanza, D; Depalma, M; Farilla, A; Iaselli, G; Maggi, G; Maggi, M; Natali, S; Nuzzo, S; Quattromini, M; Ranieri, A; Raso, G; Romano, F; Ruggieri, F; Selvaggi, G; Silvestris, L; Tempesta, P; Zito, G; Gao, Y; H, Hu; Huang, D; Huang, X; Lin, J; Lou, J; Qiao, C; Wang, T; Xie, Y; Xu, D; Xu, R; Zhang, J; Zhao, W; Atwood, Wb; Bauerdick, Lat; Blucher, E; Bonvicini, G; Bossi, F; Boudreau, J; Burnett, Th; Drevermann, H; Forty, Rw; Hagelberg, R; Harvey, J; Haywood, S; Hilgart, J; Jacobsen, R; Jost, B; Knobloch, J; Lancon, E; Lehraus, I; Lohse, T; Lusiani, A; Martinez, M; Mato, P; Mattison, T; Meinhard, H; Menary, S; Meyer, T; Minten, A; Miquel, R; Moser, Hg; Nash, J; Palazzi, P; Perlas, Ja; Ranjard, F; Redlinger, G; Rolandi, L; Roth, A; Rothberg, J; Ruan, T; Saich, M; Schlatter, D; Schmelling, M; Sefkow, F; Tejessy, W; Wachsmuth, H; Wiedenmann, W; Wildish, T; Witzeling, W; Wotschack, J; Ajaltouni, Z; Badaud, F; Bardadinotwinowska, M; Bencheikh, Am; Elfellous, R; Falvard, A; Gay, P; Guicheney, C; Henrard, P; Jousset, J; Michel, B; Montret, Jc; Pallin, D; Perret, P; Pietrzyk, B; Proriol, J; Prulhiere, F; Stimpfl, G; Fearnley, T; Hansen, Jd; Hansen, Jr; Hansen, Ph; Mollerud, R; Nilsson, Bs; Efthymiopoulos, I; Kyriakis, A; Simopoulou, E; Vayaki, A; Zachariadou, K; Badier, J; Blondel, A; Bonneaud, G; Brient, Jc; Fouque, G; Gamess, A; Orteu, S; Rosowsky, A; Rouge, A; Rumpf, M; Tanaka, R; Videau, H; Candlin, Dj; Parsons, Mi; Veitch, E; Moneta, L; Parrini, G; Corden, M; Georgiopoulos, C; Ikeda, M; Lannutti, J; Levinthal, D; Mermikides, M; Sawyer, L; Wasserbaech, S; Antonelli, A; Baldini, R; Bencivenni, G; Bologna, G; Campana, P; Capon, G; Cerutti, F; Chiarella, V; Dettorrepiazzoli, B; Felici, G; Laurelli, P; Mannocchi, G; Murtas, F; Murtas, Gp; Passalacqua, L; Pepealtarelli, M; Picchi, P; Altoon, B; Boyle, O; Colrain, P; Tenhave, I; Lynch, Jg; Maitland, W; Morton, Wt; Raine, C; Scarr, Jm; Smith, K; Thompson, As; Turnbull, Rm; Brandl, B; Braun, O; Geiges, R; Geweniger, C; Hanke, P; Hepp, V; Kluge, Ee; Maumary, Y; Putzer, A; Rensch, B; Stahl, A; Tittel, K; Wunsch, M; Belk, At; Beuselinck, R; Binnie, Dm; Cameron, W; Cattaneo, M; Colling, Dj; Dornan, Pj; Dugeay, S; Greene, Am; Hassard, Jf; Lieske, Nm; Patton, Sj; Payne, Dg; Phillips, Mj; Sedgbeer, Jk; Tomalin, Ir; Wright, Ag; Kneringer, E; Kuhn, D; Rudolph, G; Bowdery, Ck; Brodbeck, Tj; Finch, Aj; Foster, F; Hughes, G; Jackson, D; Keemer, Nr; Nuttall, M; Patel, A; Sloan, T; Snow, Sw; Whelan, Ep; Barczewski, T; Kleinknecht, K; Raab, J; Renk, B; Roehn, S; Sander, Hg; Schmidt, H; Steeg, F; Walther, Sm; Wolf, B; Aubert, Jj; Benchouk, C; Bernard, V; Bonissent, A; Carr, J; Coyle, P; Drinkard, J; Etienne, F; Papalexiou, S; Payre, P; Qian, Z; Rousseau, D; Schwemling, P; Talby, M; Adlung, S; Bauer, C; Blum, W; Brown, D; Cowan, G; Dehning, B; Dietl, H; Dydak, F; Fernandezbosman, M; Frank, M; Halley, Aw; Lauber, J; Lutjens, G; Lutz, G; Manner, W; Richter, R; Schroder, J; Schwarz, As; Settles, R; Seywerd, H; Stierlin, U; Stiegler, U; Stdenis, R; Takashima, M; Thomas, J; Wolf, G; Bertin, V; Boucrot, J; Callot, O; Chen, X; Cordier, A; Davier, M; Grivaz, Jf; Heusse, P; Janot, P; Kim, Dw; Lediberder, F; Lefrancois, J; Lutz, Am; Schune, Mh; Veillet, Jj; Videau, I; Zhang, Z; Zomer, F; Abbaneo, D; Amendolia, Sr; Bagliesi, G; Batignani, G; Bosisio, L; Bottigli, U; Bradaschia, C; Carpinelli, M; Ciocci, Ma; Dellorso, R; Ferrante, I; Fidecaro, F; Foa, L; Focardi, E; Forti, F; Giassi, A; Giorgi, Ma; Ligabue, F; Mannelli, Eb; Marrocchesi, Ps; Messineo, A; Palla, F; Rizzo, G; Sanguinetti, G; Steinberger, J; Tenchini, R; Tonelli, G; Triggiani, G; Vannini, C; Venturi, A; Verdini, Pg; Walsh, J; Carter, Jm; Green, Mg; March, Pv; Mir, Lm; Medcalf, T; Quazi, Is; Strong, Ja; West, Lr; Botterill, Dr; Clifft, Rw; Edgecock, Tr; Edwards, M; Fisher, Sm; Jones, Tj; Norton, Pr; Salmon, Dp; Thompson, Jc; Blochdevaux, B; Colas, P; Kozanecki, W; Lemaire, Mc; Locci, E; Loucatos, S; Monnier, E; Perez, P; Perrier, F; Rander, J; Renardy, Jf; Roussarie, A; Schuller, Jp; Schwindling, J; Mohand, Ds; Vallage, B; Johnson, Rp; Litke, Am; Taylor, G; Wear, J; Ashman, Jg; Babbage, W; Booth, Cn; Buttar, C; Carney, Re; Cartwright, S; Combley, F; Hatfield, F; Reeves, P; Thompson, Lf; Barberio, E; Brandt, S; Grupen, C; Mirabito, L; Schafer, U; Ganis, G; Giannini, G; Gobbo, B; Ragusa, F; Bellantoni, L; Cinabro, D; Conway, Js; Cowen, Df; Feng, Z; Ferguson, Dps; Gao, Ys; Grahl, J; Harton, Jl; Jared, Rc; Leclaire, Bw; Lishka, C; Pan, Yb; Pater, Jr; Pusztaszeri, Jf; Saadi, Y; Sharma, V; Schmitt, M; Shi, Zh; Walsh, Am; Weber, Fv; Whitney, Mh; Wu, Sl; Wu, X; Zobernig, G. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 292:1-2(1992), pp. 210-220. [10.1016/0370-2693(92)90633-F]
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