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Abrahamyan, S; Allada, K; Anez, D; Averett, T; Barbieri, A; Bartlett, K; Beacham, J; Bono, J; Boyce, J R; Brindza, P; Camsonne, A; Cranmer, K; Dalton, M M; de Jager, C W; Donaghy, J; Essig, R; Field, C; Folts, E; Gasparian, A; Goeckner-Wald, N; Gomez, J; Graham, M; Hansen, J -O; Higinbotham, D W; Holmstrom, T; Huang, J; Iqbal, S; Jaros, J; Jensen, E; Kelleher, A; Khandaker, M; LeRose, J J; Lindgren, R; Liyanage, N; Long, E; Mammei, J; Markowitz, P; Maruyama, T; Maxwell, V; Mayilyan, S; McDonald, J; Michaels, R; Moffeit, K; Nelyubin, V; Odian, A; Oriunno, M; Partridge, R; Paolone, M; Piasetzky, E; Pomerantz, I; Qiang, Y; Riordan, S; Roblin, Y; Sawatzky, B; Schuster, P; Segal, J; Selvy, L; Shahinyan, A; Subedi, R; Sulkosky, V; Stepanyan, S; Toro, N; Walz, D; Wojtsekhowski, B; Zhang, J
Physical review letters, 11/2011, Letnik: 107, Številka: 19Journal Article
We present a search at Jefferson Laboratory for new forces mediated by sub-GeV vector bosons with weak coupling {alpha}' to electrons. Such a particle A' can be produced in electron-nucleus fixed-target scattering and then decay to an e{sup +}e{sup -} pair, producing a narrow resonance in the QED trident spectrum. Using APEX test run data, we searched in the mass range 175-250 MeV, found no evidence for an A' {yields} e{sup +}e{sup -} reaction, and set an upper limit of {alpha}'/{alpha} {approx} 10{sup -6}. Our findings demonstrate that fixed-target searches can explore a new, wide, and important range of masses and couplings for sub-GeV forces.
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Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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