English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The sneutrino resonance reactions p \bar p -> sneutrino -> l^+ l^- +X, forl=e,\mu,\tau, in the MSSM without R-parity are considered. We perform across-section analysis and show that present limits on some products ofR-parity violating couplings in the sneutrino sector can be significantlyimproved in future upgraded Fermilab Tevatron runs. Furthermore, we introduceCP-violating and CP-conserving \tau-spin asymmetries which are generatedalready at the TREE-LEVEL in the reaction p \bar p -> sneutrino -> \tau^+\tau^- +X if there is muon-sneutrino - \bar muon-sneutrino mixing and thatvanish in the SM. We find, for example, that for muon-sneutrino masses in therange 150 GeV < m_{muon-sneutrino} < 450 GeV, these spin asymmetries reach ~ 20- 30% and ~ 10% for mass splitting between the muon-sneutrino CP-odd andCP-even states at the level of \Delta m ~ \Gamma and \Delta m ~ \Gamma/4,respectively, where \Gamma is the muon-sneutrino width. Both the CP-violatingand the CP-conserving spin asymmetries should be detectable in future Tevatronruns even for a heavy sneutrino with a mass < 500 GeV. If detected, suchasymmetries - being proportional to the mass splitting between the CP-even andCP-odd sneutrino states - may serve as a strong indication for the existence ofthe sneutrino mixing phenomenon.Comment: 27 pages, plain latex, 5 figures embadded in the text using epsfig.  Final version as will appear in Phys. Rev. D. Main revisions made: updated  and added references, additions to the discussion of spin-asymmetries in  section

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>R</mml:mi></mml:math>-parity violation, sneutrino mixing phenomena, and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>CP</mml:mi></mml:math>violation in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>p</mml:mi></mml:mrow><mml:mrow><mml:mi>¯</mml:mi></mml:mrow></mml:mover></mml:mrow></mml:…

R-parity violation, sneutrino mixing phenomena, andCPviolation inpp¯