Phenomenology of a very light scalar (100 MeV <mh<<m_h< 10 GeV) mixing with the SM Higgs

In this paper we investigate the phenomenology of a very light scalar, $h$, with mass 100 MeV $<m_h<$ 10 GeV, mixing with the SM Higgs. As a benchmark model we take the real singlet scalar extension of the SM. We point out apparently unresolved uncertainties in the branching ratios and lifetime of $h$ in a crucial region of parameter space for LHC phenomenology. Bounds from LEP, meson decays and fixed target experiments are reviewed. We also examine prospects at the LHC. For $m_h \lesssim m_B$ the dominant production mechanism is via meson decay; our main result is the calculation of the differential $p_T$ spectrum of $h$ scalars originating from B mesons and the subsequent prediction of up to thousands of moderate (triggerable) $p_T$ displaced dimuons possibly hiding in the existing dataset at ATLAS/CMS or at LHCb. We also demonstrate that the subdominant $Vh$ production channel has the best sensitivity for $m_h \gtrsim m_B$ and that future bounds in this region could conceivably compete with those of LEP.Comment: 13 pages, 9 figure

Quark-lepton symmetric model at the LHC

We investigate the quark-lepton symmetric model of Foot and Lew in the context of the Large Hadron Collider (LHC). In this `bottom-up' extension to the Standard Model, quark-lepton symmetry is achieved by introducing a gauged `leptonic colour' symmetry which is spontaneously broken above the electroweak scale. If this breaking occurs at the TeV scale, then we expect new physics to be discovered at the LHC. We examine three areas of interest: the Z$'$ heavy neutral gauge boson, charge $\pm1/2$ exotic leptons, and a colour triplet scalar diquark. We find that the LHC has already explored and/or will explore new parameter space for these particles over the course of its lifetime.Comment: 24 pages, 6 figure

I Wonder if You Dream Of Me

https://digitalcommons.library.umaine.edu/mmb-vp/4452/thumbnail.jp

A Bioeconomic Analysis of the Northwestern Hawaiian Islands Lobster Fishery

Several surplus production-based bioeconomic models are applied to the Northwestern Hawaiian Islands (NWHI) commercial lobster fishery. The model which best explains the biological dynamics of the fishery is a modification of the Fox model developed by the authors. Economic costs are applied within a number of conceptual frameworks to develop the first integrated bioeconomic model of the fishery. In another development, the opportunity cost of labor based on crew share at the open access equilibrium level of fishing effort is used instead of proxy wage levels. Given the costs incurred, the fishery appears to be self-regulating in terms of long-term fishing effort for maximum sustainable yield.biological production models, fisheries economics, fisheries management, spiny lobster, slipper lobster, Environmental Economics and Policy, Resource /Energy Economics and Policy,

Introduction

What are the library services and resources that Asian Pacific Americans need? What does it mean to be an Asian Pacific American librarian in the 21st century? In Asian American Librarians and Library Services: Activism, Collaborations, and Strategies, library professionals and scholars share reflections, best practices, and strategies, and convey the critical need for diversity in the LIS field, library programming, and resources to better reflect the rich and varied experiences and information needs of Asian Americans in the US and beyond. The contributors show that they care deeply about diversity, that they acknowledge that it is painfully lacking in so many aspects of libraries and librarianship, and that libraries and the LIS profession must systematically integrate diversity and inclusion into their strategic priorities and practices, indeed, in their very mission, such that the rich diversity of experiences and histories of Asian Americans in library and archival collections, services, and programming are not only validated and recognized, but also valued and celebrated as vital components of the shared American experience. The volume recognizes and honors the creative and intentional work librarians do for their constituent Asian American communities in promoting resources, services, and outreac