1,117 research outputs found
Letter from RV Hunter to Bertha Rose, Feb 19, 1942
No full textLetter from Russell Vernon Hunter to Bertha Rose regarding Erik Barger watercolors
Higgs Sector in Extensions of the Minimal Supersymmetric Standard Model
No full textExtensions of the minimal supersymmetric standard model (MSSM) with additional singlet scalar fields solve the important µ-parameter fine-tuning problem of the MSSM.We compute and compare the neutral Higgs boson mass spectra, including one-loop corrections, of the following MSSM extensions: next-tominimal supersymmetric standard model (NMSSM), the nearly-minimal supersymmetric standard model (nMSSM), and the U(1)\u27-extended minimal supersymmetric standard model (UMSSM) by performing scans over model parameters. We find that the secluded U(1)\u27-extended minimal supersymmetric standard model (sMSSM) is identical to the nMSSM if three of the additional scalars decouple. The dominant part of the one-loop corrections are model independent since the singlet field does not couple to MSSM particles other than the Higgs doublets. Thus, model-dependent parameters enter the masses only at tree level. We apply constraints from LEP bounds on the standard model and MSSM Higgs boson masses and the MSSM chargino mass, the invisible Z decay width, and the Z - Z\u27 mixing angle. Some extended models permit a Higgs boson with mass substantially below the SM LEP limit or above theoretical limits in the MSSM.Ways to differentiate the models via masses, couplings, decays and production of the Higgs bosons are discussed
Margriet Ruurs' book signing
No full textThe Armstrong author held a book signing at the Vernon Teach & Learn to launch her new book 'On the Write Track!' Used on pg. 3 of the Sept 28, 1993 newspaper
Correspondence between DeQuincey Newman and Vernon Jordan, 1966
No full textCorrespondence from DeQuincey Newman to Vernon Jordan requesting funding interns for a South Carolina program and a response from Vernon Jordan denying that request
Correspondence between Elijah H. Glenn, William H. Samuel and Vernon Jordan, August 1968
No full textCorrespondence from Elijah H. Glenn to Vernon Jordan requesting funds for a voter education program by the Allen Parish Voters League. Following is William H. Samuel's correspondence to Vernon Jordan to endorse the Allen Parish Voters League's program
Correspondence from Ralph Featherstone and Albert S. Harris to Vernon Jordan, January 1968
No full textCorrespondence from Ralph Featherstone to Vernon Jordan requesting a VEP representative to observe the Alabama Action Committee voter registration drive and enclosed is a form letter from the AAC. The correpondence is proceeded by a memorandum from Vernon Jordan to Weldon Rougeau
Correspondence between Zelma C. Wyche, William H. Samuel and Vernon Jordan, 1968
No full textCorrespondence from Zelma C. Wyche to William H. Samuel proposing a voter education program to take advantage of a Black majority voting population. William H. Samuel' correspondence to Vernon Jordan endorses the proposal to Vernon Jordan citing an important upcoming election and the fact no Black person had held office at the time of correspondence
Z′ mediated flavor changing neutral currents in B meson decays
No full textAbstractWe study the effects of an extra U(1)′ gauge boson with flavor changing couplings with fermion mass eigenstates on certain B meson decays that are sensitive to such new physics contributions. In particular, we examine to what extent the current data on Bd→φK and Bd→η′K decays may be explained in such models, concentrating on the example in which the flavor changing couplings are left-chiral. We find that within reasonable ranges of parameters, the Z′ contribution can readily account for the anomaly in SφKS but is not sufficient to explain large branching ratio of Bd→η′K with the same parameter value. SφKS and Sη′KS are seen to be the dominant observables that constrain the extra weak phase in the model
Neutralino relic density in a supersymmetric U(1)′ model
No full textAbstractWe study properties of the lightest neutralino (χ0) and calculate its cosmological relic density in a supersymmetric U(1)′ model with a secluded U(1)′ breaking sector (the S-model). The lightest neutralino mass is smaller than in the minimal supersymmetric standard model; for instance, mχ0≲100 GeV in the limit that the U(1)′ gaugino mass is large compared to the electroweak scale. We find that the Zχ0χ0 coupling can be enhanced due to the singlino components in the extended neutralino sector. Neutralino annihilation through the Z-resonance then reproduces the measured cold dark matter density over broad regions of the model parameter space
Correspondence between Mervyn M. Dymally and Vernon Jordan, December 1967
No full textCorrespondence between Mervyn M. Dymally about Vernon Jordan increasing voter awareness in Los Angeles. Enclosed is a grant proposal from the Urban Affairs Foundation
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