Fermionic Effective Operators and Higgs Production at a Linear Collider

We study the possible contributions of dimension six operators containing fermion fields to Higgs production at a 500 GeV or 1 TeV $e^+e^-$ linear collider. We show that -- depending on the production mechanism -- the effects of such operators can be kinematically enhanced relative to Standard Model (SM) contributions. We determine constraints on the operator coefficients implied by existing precision electroweak measurements and the scale of neutrino mass. We find that even in the presence of such constraints, substantial deviations from SM Higgs production cross-sections are possible. We compare the effects of fermionic operators with those associated with purely bosonic operators that have been previously discussed in the literature.Comment: 25 pages, 9 figures, fixed typo in author name

Constraints on Muon Decay Parameters from Neutrino Mass

We derive model-independent constraints on chirality-changing terms in the muon decay Lagrangian using limits on neutrino mass. We consider all dimension-six operators invariant under the gauge symmetry of the Standard Model which contribute to either a Dirac neutrino mass or muon decay. Taking an upper limit on neutrino mass of 1 eV, we derive limits on the contributions of chirality-changing operators to the Michel parameters four orders of magnitude tighter than the current experimental constraints. We also identify two operators which, due to their flavor structure, are not constrained by neutrino mass. If near-future experiments find contributions to muon decay from these operators, it could indicate interesting flavor structure in physics beyond the SM.Comment: 4 pages, contribution to the proceedings of CIPANP 2006 (May 30-June 3, 2006), Rio Grande, Puerto Ric

Neutrino Mass Implications for Muon Decay Parameters

We use the scale of neutrino mass to derive model-independent naturalness constraints on possible contributions to muon decay Michel parameters from new physics above the electroweak symmetry-breaking scale. Focusing on Dirac neutrinos, we obtain a complete basis of effective dimension four and dimension six operators that are invariant under the gauge symmetry of the Standard Model and that contribute to both muon decay and neutrino mass. We show that -- in the absence of fine tuning -- the most stringent bounds on chirality-changing operators relevant to muon decay arise from one-loop contributions to neutrino mass. The bounds we obtain on their contributions to the Michel parameters are four or more orders of magnitude stronger than bounds previously obtained in the literature. We also show that there exist chirality-changing operators that contribute to muon decay but whose flavor structure allows them to evade neutrino mass naturalness bounds. We discuss the implications of our analysis for the interpretation of muon decay experiments.Comment: 19 pages, 4 figure

Veterans and Agent Orange: Update 11 (2018) (2018)

Contents ACRONYMS AND ABBREVIATIONS xvii SUMMARY 1 1 INTRODUCTION 17 Previous Veterans and Agent Orange Reports, 18 Charge to the Committee, 19 Information Gathering, 20 Organization of the Report, 21 2 BACKGROUND 25 The Current Population of Vietnam Veterans,25 Military Use of Herbicides in Vietnam, 27 Exposure of Different Groups of Vietnam Veterans, 30 Characterizing Exposure, 38 Determining Increased Risk in Vietnam Veterans, 4

Overvåkning av Glomma, Vorma og Øyeren 2012

Høsten 2012 ble det tatt bunndyr- og begroingsprøver på fem stasjoner i Glomma og én i Vorma. I Øyeren ble det tatt prøver av planteplankton og vannkjemi. Gjennomsnittlig konsentrasjon av total fosfor og klorofyll a var henholdsvis 9.5 µg/l og 2.45 µg/l, tilsvarende svært god økologisk tilstand. Algesammensetningen viste et stort mangfold med lave konsentrasjonen av blågrønnalger. Ved Høyegga i Glomma ble det påvist høye konsentrasjoner av kobber (6 prøver: 4.6-6.4 µg/l), tilsvarende sterkt forurenset tilstand (Klif 1997). På de fleste stasjonene i Glomma var det forholdsvis lave konsentrasjoner av suspenderte partikler (<0.8-4.3 mg/l), totalt fosfor (3-14 µg/l) og totalt nitrogen (200-555 µg/l). De høyeste konsentrasjonene ble påvist på de nederste stasjonene. Basert på alge­begroing hadde de tre øverste stasjonene (Prestfoss, Gjølstadfoss, Bingsfoss) i Glomma svært god-, og de to nederste god tilstand (Solbergfoss, Sarpsfoss). Det var god økologisk tilstand ved Svanfoss i Vorma. Basert på bunndyrsamfunnet var den økologiske tilstanden på øverste stasjon svært god, moderat ved Solbergfoss og god på de øvrige. Den økologiske tilstanden ved Svanfoss var god. Det biologiske mangfoldet uttrykt som antall EPT-arter i bunnfaunaen varierte fra 18 ved Prestfoss til 10 ved Bingsfoss. Bunndyr og algebegroing viste samme tilstandsklasse på tre av seks stasjoner i 2012. På de øvrige stasjonene ga bunndyrindeksen en dårligere tilstand. Basert på vannvegetasjonen karakteriseres undersøkte områder i Vorma som svært gode i forhold til eutrofiering.FM i Oslo og Akershus, Hedmark og Østfol

Gravitational Perturbations of a Six Dimensional Self-Tuning Model

We investigate gravitational perturbations in a compact six-dimensional self-tuning brane model. We specifically look for analytic solutions to the perturbed Einstein equations that correspond in four-dimensions to massless or approximately massless scalars coupled to matter on the brane. The presence of such modes with gravitational couplings would be phenomenologically unacceptable. The most general solution for all such modes is obtained, but it is found that they are all eliminated by the boundary conditions. Our main result is that to linear order in perturbation theory this model does not contain any light scalars. We speculate that this model does not self-tune.Comment: CALT-68-2478, 15 pages; added references, clarified comments about fine-tuning in this mode

In vivo voltammetric monitoring of catecholamine release in subterritories of the nucleus accumbens shell

Fast-scan cyclic voltammetry (FSCV) at carbon-fiber microelectrodes has been used to demonstrate that sub-second changes in catecholamine concentration occur within the nucleus accumbens (NAc) shell during motivated behaviors, and these fluctuations have been attributed to rapid dopamine signaling. However, FSCV cannot distinguish between dopamine and norepinephrine, and caudal regions of the NAc shell receive noradrenergic projections. Therefore, in the present study, we examined the degree to which norepinephrine contributes to catecholamine release within rostral and caudal portion of NAc shell. Analysis of tissue content revealed that dopamine was the major catecholamine detectable in the rostral NAc shell, whereas both dopamine and norepinephrine were found in the caudal subregion. To examine releasable catecholamines, electrical stimulation was used to evoke release in anesthetized rats with either stimulation of the medial forebrain bundle, a pathway containing both dopaminergic and noradrenergic projections to the NAc, or the ventral tegmental area/substantia nigra, the origin of dopaminergic projections. The catecholamines were distinguished by their responses to different pharmacological agents. The dopamine autoreceptor blocker, raclopride, as well as the monoamine and dopamine transporter blockers, cocaine and GBR 12909, increased evoked catecholamine overflow in both the rostral and caudal NAc shell. The norepinephrine autoreceptor blocker, yohimbine, and the norepinephrine transporter blocker, desipramine, increased catecholamine overflow in the caudal NAc shell without significant alteration of evoked responses in the rostral NAc shell. Thus, the neurochemical and pharmacological results show that norepinephrine signaling is restricted to caudal portions of the NAc shell. Following raclopride and cocaine or raclopride and GBR 12909, robust catecholamine transients were observed within the rostral shell but these were far less apparent in the caudal NAc shell, and they did not occur following yohimbine and desipramine. Taken together, the data demonstrate that catecholamine signals in the rostral NAc shell detected by FSCV are due to change in dopamine transmission

The Lantern Vol. 44, No. 1, Fall 1977

• Onto My Love • Saturday Midnight • Michelle • Today • Firefly • Black Midnight • Bamboo Arms • Caesaropapism • A Day In My Life • I Only • For Stephen • April 18, 1958 to July 15, 1977 with Emphasis on July 15 • Ode to Little Sisters • Privacy Warning • For Susan, Someone I Used to Know • A Parting on the Night of June 26th • Infant\u27s Universehttps://digitalcommons.ursinus.edu/lantern/1111/thumbnail.jp

Forurensningssituasjonen i Mjøsa med tilløpselver 2012

Denne rapporten gir en kortfattet oversikt over de viktigste resultatene fra overvåkingen i Vannområde Mjøsa i 2012. Undersøkelsene er utført på oppdrag fra Vassdragsforbundet for Mjøsa med tilløpselver. Overvåkingen omfatter fysiske, kjemiske og biologiske forhold i Mjøsas hovedvannmasser, hygieniske forhold, konsentrasjoner og transport av næringsstoffer i de seks største tilløpselvene samt i utløpselva Vorma. Videre er biologiske forhold i utvalgte tilløpselver undersøkt. Årsrapporten for 2012 gir en fyldigere presentasjon av måledata og vurderinger. Data presenteres også fortløpende gjennom NIVAs overvåkingsverktøy Aquamonitor.Vassdragsforbundet for Mjøsa med tilløpselve