Summary
We explore the possible physical origins of the same-sign dilepton events produced by neutrino interactions, while the most likely explanation for these events has been thought to be charm pair production, experimental observations and theoretical calculations appear to make this hypothesis unlikely. We, therefore, explore alternate origins of these events and include constraints on physical processes from e+e− and charm decay data. One alternate hypothesis can fit the data: the production of a new class of neutral particles that decay semi-leptonically with a mass below 5 GeV. A possible place to look for these particles is in the decays of W±-bosons or ¯pp collisions where W± particles are exchanged with a key signature the production of 〈 unusual 〉 lepton or same-sign dilepton events (isolated from hadronic debris).
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A. Benvenuti, D. Cline, W. T. Ford, R. Imlay, T. Y. Ling, A. K. Mann, P. Messing, D. D. Reeder, C. Rubbia, R. Stefanski andL. Sulak:Phys. Rev. Lett.,34, 597 (1975). See also: D. Clike:Multilepton production by neutrinos and antineutrinos: charm, charmchanging neutral currents and new flavors, talk given at the BNL APS meeting, October 1976, published in the proceedings (1976) andO. Fackler: talk given at the same meeting.
M. Holder, J. Knobloch, J. May, H. P. Paar, P. Palazzi, D. Schlatter, J. Steinberger, H. Suter, H. Wahl, B. G. H. Williams, F. Eisele, C. Geweniger, K. Kleinknecht, G. Spahn, H. J. Willutzki, W. Dorth, F. Dydak, V. Hepp, K. Tittel, J. Wotschack, P. Bloch, B. Devaux, M. Grimm, J. Maillard, B. Peyaud, J. Rander, A. Savoy-Navarro, R. Turlay andF. L. Navarria:Phys. Lett. B,70, 396 (1977);A. Benvenuti, F. Bobisut, D. Cline, P. S. Cooper, M. G. D. Gilchriese, S. M. Heagy, R. Imlay, M. Johnson, T. Y. Ling, R. Lundy, A. K. Mann, P. Mc-Intyre, S. Mori, D. D. Reeder, J. Rich, R. Stefanski andD. R. Winn:Phys. Rev. Lett.,41, 725 (1978).
K. Nishikawa, D. Buchholz, B. C. Barish, J. F. Bartlett, R. Blair, Y. Chu, J. Lee, P. Linsay, J. Ludwig, R. Messner, P. Mine, F. J. Sciulli, M. Shaevitz, E. Siskind, D. Edwards, H. Edwards, H. E. Fisk, Y. Fukushima, G. Krafczyk, D. Nease, A. Bodek, W. Marsh andO. Fackler:Phys. Rev. Lett.,46, 1555 (1981),M. Jonker, J. Panman, F. Udo, J. V. Allaby, U. Amaldi, G. Barbiellini, W. Flegel, W. Kozanecki, K. H. Mess, H. Metcalf, J. Meyer, P. Monacelli, E. S. Orr, A. M. Wetherell, K. Winter, V. Blobel, F. W. Büsser, P. D. Gall, H. Grote, B. Kröger, E. Metz, F. Niebergall, K. H. Ranitzsch, P. StÄhelin, P. Gorbunov, E. Grigoriev, V. Kaftanov, V. Khovanskt, A. Rosanov, A. Baroncelli, R. Biancastelli, B. Borgia, C. Bosio, A. Capone, F. Ferroni, E. Longo, F. de Notaristefani, P. Pistillt, C. Santoni andV. Valente:Phys. Rev. Lett. B,107, 241 (1981);T. Trinko, A. Benvenuti, D. Cline, S. M. Heagy, D. D. Reeder, D. R. Winn, F. Bobisut, P. S. Cooper, M. G. D. Gilchriese, A. K. Mann, M. E. Jonnson, R. Lundt, S. Mori, R. Stefanski, P. McIntyre, J. A. Rich, T. Y. Ling andR. Imlay:Phys. Rev. D,23, 1889 (1981).
E. Fisk:Proceedings of the International Symposium on Lepton and Photon Interactions at High Energy, Bonn, 1981 (University Bonn, 1981), p. 703; M. J. Murtagh:Proceedings of the International Symposium on Lepton and Photon Interactions at High Energy, Batavia, 1979 (FNAL, Batavia, Ill., 1979), p. 277.
R. L. Kingsley:Phys. Lett. B,63, 329 (1976);L. B. Okun, V. I. Zakharov andB. M. Pontecorvo:Lett. Nuovo Cimento,13, 218 (1975);H. Goldberg:Phys. Rev. Lett.,39, 1598 (1977).
D. Cline:New quark and multilepton production by neutrinos and anlineulrinos. Summary talk given at theOxford Neutrino Conference, July 1978 and published in the proceedings (1978).
G. J. Feldman, I. Peruzzi, M. Piccolo, G. S. Abrams, M. S. Alam, A. M. Boyarski, M. Breidenbach, J. Dorfan, W. Chinowsky, D. Fryberger, G. Goldhaber, G. Hanson, J. A. Jaros, A. D. Johnson, J. A. Kadyk, R. R. Larsen, D. Luke, V. Lüth, R. J. Madaras, H. K. Nguyen, J. M. Paterson, M. L. Perl, T. P. Pun, P. Rapidis, B. Richter, R. F. Schwitters, W. Tanenbaum, G. H. Trilling, J. S. Whitaker andJ. E. Wiss:Phys. Rev. Lett.,38, 1313 (1977);G. Goldhaber, J. E. Wiss, G. S. Abrams, M. S. Alam, A. M. Boyarski, M. Breidenbach, W. Chinowsky, J. Dorfan, G. J. Feldman, G. Hanson, J. A. Jaros, A. D. Johnson, J. A. Kadyk, D. Lüke, V. Lüth, H. L. Lynch, R. J. Madaras, H. K. Nguyen’, J. M. Paterson, M. L. Perl, I. Peruzzi, M. Piccolo, F. M. Pierre, T. P. Pun-, P. Rapidis, B. Richter, R. H. Schindler, R. F. Schwitters, J. Siegrist, W. Tanenbaum andG. H. Trilling:Phys. Lett. B,69, 503 (1977).
A. Bodek, R. Breedon, R. N. Coleman, W. Marsh, S. Olsen, J. L. Ritchie, B. C. Barish, R. L. Messner, M. H. Shaevitz, E. J. Siskind, F. S. Merritt, H. E. Fisk, Y. Fukushima, P. A. Rapidis, G. Donaldson andS. G. Wojcicki:Phys. Lett. B,113, 82 (1982).
H. Goldberg:Phys. Rev. Lett.,39, 1598 (1977); B. L. Young, T. F. Walsh and T. C. Yang:Phys. Rev. Lett. B,74, 111 (1978);V. Barger, T. Gottschalk andR. J. N. Phillips:Phys. Rev. D,18, 2308 (1978);G. L. Kase, J. Smith andJ. A. M. Vermaseren:Phys. Rev. D,19, 1978 (1979).
N. Ushida, T. Kondo, G. Fujioka, J. FuKusHiMA, Y. Takahashi, S. Tatsumi, C. Yokoyama, Y. Homma, Y. Tsuzuki, S. Bahk, C. Kim, J. Park, J. Song, D. Bailey, S. Conetti, J. Fischer, J. Trischuk, H. Fuchi, K. Hoshino, M. Miyanishi, K. Niu, K. Niwa, H. Shibuya, Y. Yanagi, Sawa, S. Errede, M. Gutzwiller, S. Kuramata, N. W. Reay, K. Reibel, T. A. Romanowski-R. SiDWELL, N. R. Stanton, K. Moriyama, H. Shibata, T. Hara, O. Kustjmoto, Y. Noguchi, M. Teranaka, H. Okabe, J. Yokota, J. Harnois, C. Hebert, J. Hebert, S. Lokanathan, B. Mc-Leod, S. Tasaka, P. Davis, J. Martin, D. Pitman, J. D. Prentice, P. Sinervo, T. S. Yoon, H. Kimura andY. Maeda:Phys. Lett. B,121, 287 (1983).
C. Baltay:Proceedings JINR-CERN School of Physics, Dobugoko, 1979 (Hungarian Academy of Sciences, Budapest, 1980), p. 64.
H. C. Ballagh, H. H. Bingham, T. Lawrt, G. R. Lynch, J. Lys, J. Orthel, M. D. Sokoloff, M. L. Stevenson, G. P. Yost, D. Gee, G. Hareigel, F. R. Huson, B. Schmidt, W. Smart, E. Treadwell, R. J. Cenoe, F. A. Harris, M. D. Jones, S. I. Parker, M. W. Peters, V. Z. Peterson, V. J. Stenger, T. H. Burnett, L. Fluri, H. J. Lubatti, K. Moriyasu, D. Rees, G. M. Swider, B. S. Yuldashev, B. Wolin, U. Camerini, W. Fry, R. J. Loveless, P. McCabe, M. Ngai andD. D. Reeder:Phys. Rev. D,24, 7 (1981).
V. V. Ammosov, A. G. Denisov, P. F. Ermolov, G. S. Gapienko, V. A. Gapienko, V. I. Klyukhin, V. I. Koreshev, P. V. Pitukhin, V. I. Sirotenko, E. A. Slobodyuk, Z. U. Ustjbov, V. G. Zaetz, J. P. Berge, D. Bogert, R. Endorf, R. Hanft, J. A. Malko, F. A. Nezrick, R. Orava, V. I. Efremenko, A. V. Fedotov, P. A. Gorichev, V. S. Kaftanov, G. K. Kliger, V. Z. Kolganov, S. P. Krutchinin, M. A. Kubantsev, I. V. Makhlueva, V. I. Shekeljan, V. G. Shevchenko, J. Bell, C. T. Coffin, B. P. Roe, A. A. Seidl, D. Sinclair andE. Wang:Phys. Lett. B,106, 151 (1981).
A. Haatuff et al.: Dilepton and trilepton production by neutrinos in Gargamelle at CERN SPS Energies, CERN-BP/83 (January 16–31, 1983).
G. Arnison, A. Astbury, B. Aubert, C. Bacci, G. Bauer, A. Bezaguet, R. Böck, T. J. V. Bowcock, M. Calvetti, P. Catz, P. Cennini, S. Centro, F. Ceradini, S. Cittolin, D. Cline, C. Cochet, J. Colas, M. Coeden, D. Dallman, D. Dau, M. DeBeer, M. Della Negra, M. Demoulin, D. Denegri, A. Di Ciaccio, D. DiBitonto, L. Dobrztnski, J. D. Dowell, K. Eggert, E. Eisen-HANDLER, N. Ellis, P. Erhard, H. Faissner, M. Fincke, G. Fontaine, R. Frey, R. Frühwirth, J. Garvey, S. Geer, C. Ghesquiere, P. Ghez, K. Giboni, W. R. Gibson, Y. Giraud-Hekaud, A. Givernaud, A. Gonidec, G. Grater, T. Hansl-Kozanecka, W. J. Haynes, L. O. Hertzberger, C. Hodges, D. Hoffmann, H. Hoffmann, D. J. Holtzhuizen, R. J. Homer, A. Honma, W. Jank, G. Jorat, P. I. P. Kalmus, V. KarimÄki, R. Keeler, I. Kenynon, A. Kernan, R. Kin-NUNEN, W. Kozaneoki, D. Kryn, F. Lacava, J. P. Laugier, J. P. Lees, H. Lehmann, R. Leuchs, A. Leveque, D. Linglin, E. Locci, J. J. Malosse, T. Markiewicz, G. Maurin, T. McMahon, J. P. Mendiburu, M. N. Minard, M. Mohammatdi, M. Moricca, K. Morgan, H. Muirhead, F. Muller, A. K. Nandi, L. Naumann, A. Norton, A. Orkin-Lecourtois, L. Paoluzi, F. Pauss, G. Piano Mortari, E. Pietarinen, M. PimiÄ, A. Placci, J. P. Porte, E. Radermacher, J. Ransdell, H. Reithler, J. P. Revol, J. Rich, M. Rijssenbeek, C. Roberts, J. Rohlf, P. Rossi, C. Rubbia, B. Sadoulet, G. Sajot, G. Salvi, G. Salvini, J. Sass, J. Saudraix, A. Savoy-Navarro, D. Schinzel, W. Scott, T. P. Shah, M. Spiro, J. Strauss, J. Streets, K. Sumorok, F. Szonsco, D. Smith, C. Tao, G. Thompson, J. Timmer, E. Tscheslog, J. Tuominiemi, B. Van Eije, J. P. Vialle, J. Vrana, V. Vuillemin, H. D. Wahl, P. Watkins, J. Wilson, C. Wulz, G. Y. Xie, M. Yvert andE. Zur-fluh:Phys. Lett. B,126, 398 (1980).
UA2 Collaboration:Phys. Lett. B,129, 130 (1983).
D. Cline andJ. Rhoades:Monte Carlo calculations of the properties of same-sign and opposite-sign dileptons from bb, tb and tt production in pp collisions, University of Wisconsin internal note (1983).
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Cline, D.B. On the physical origin of same-sign dileptons produced by neutrino interactions. Lett. Nuovo Cimento 40, 377–384 (1984). https://doi.org/10.1007/BF02751874
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DOI: https://doi.org/10.1007/BF02751874