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TeV scale resonant leptogenesis from supersymmetry breaking

Journal of High Energy Physics 8:7 (2004)

Authors:

T Hambye, J March-Russell, SM West

Abstract:

We propose a model of TeV-scale resonant leptogenesis based upon recent models of the generation of light neutrino masses from supersymmetry-breaking effects with TeV-scale right-handed (rhd) neutrinos, Ni The model leads to large cosmological lepton asymmetries via the resonant behaviour of the one-loop self-energy contribution to Ni decay. Our model addresses the primary problems of previous phenomenological studies of low-energy leptogenesis: a rational for TeV-scale rhd neutrinos with small Yukawa couplings so that the out-of equilibrium condition for Ni decay is satisfied; the origin of the tiny, but non-zero mass splitting required between at least two Ni masses; and the necessary non-trivial breaking of flavour symmetries in the rhd neutrino sector. The low mass-scale of the rhd neutrinos and their superpartners, and the TeV-scale A-terms automatically contained within the model offer opportunities for partial direct experimental tests of this leptogenesis mechanism at future colliders. © SISSA/ISAS 2004.
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First Measurements of Inclusive W and Z Cross Sections from Run II of the Tevatron Collider

ArXiv hep-ex/0406078 (2004)
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Search for Doubly-Charged Higgs Bosons Decaying to Dileptons in ppbar Collisions at sqrt(s)=1.96 TeV

ArXiv hep-ex/0406073 (2004)

Authors:

CDF Collaboration, D Acosta
Details from ArXiV

Experimental observation of the 'Tilting Mode' of an array of vortices in a dilute Bose-Einstein Condensate

(2004)

Authors:

NL Smith, WH Heathcote, JM Krueger, CJ Foot
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CDF Run IIb Silicon Detector: Electrical Performance and Deadtime-Less Operation

IEEE Transactions on Nuclear Science Institute of Electrical and Electronics Engineers (IEEE) 51:3 (2004) 987-993

Authors:

T Akimoto, M Aoki, P Azzi, N Bacchetta, S Behari, D Benjamin, D Bisello, G Bolla, D Bortoletto, G Busetto, S Cabrera, A Canepa, G Cardoso, M Chertok, CI Ciobanu, G Derylo, I Fang, EJ Feng, JP Fernandez, B Flaugher, J Freeman, L Galtieri, J Galyardt, M Garcia-Sciveres, G Giurgiu, C Haber, D Hale, K Hara, R Harr, C Hill, J Hoff, B Holbrook, SC Hong, M Hrycyk, TH Hsiung, J Incandela, EJ Jeon, KK Joo, T Junk, H Kahkola, S Karjalainen, S Kim, K Kobayashi, DJ Kong, B Krieger, M Kruse, N Kuznetsova, S Kyre, R Lander, T Landry, R Lauhakangas, J Lee, R-S Lu, P Lujan, P Lukens, E Mandelli, C Manea, P Maksimovic, P Merkel, SN Min, S Moccia, I Nakano, T Nelson, B Nord, J Novak, T Okusawa, R Orava, Y Orlov, K Osterberg, D Pantano, V Pavlicek, D Pellett, J Pursley, P Riipinen, B Schuyler, A Shenai, A Soha, D Stuart, R Tanaka, M Tavi, H Von der Lippe, J-P Walder, Z Wang, Marc Weber, W Wester, K Yamamoto, YC Yang, W Yao, W Yao, R Yarema, JC Yun, F Zetti, T Zimmerman, S Zimmermann, S Zucchelli
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