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Measurement of the electroweak production of Zγ and two jets in proton-proton collisions at s =13 TeV and constraints on anomalous quartic gauge couplings
No full textThe first observation of the electroweak (EW) production of a Z boson, a photon, and two forward jets (Zγjj) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. A data set corresponding to an integrated luminosity of 137 fb-1, collected by the CMS experiment at the LHC in 2016-2018 is used. The measured fiducial cross section for EW Zγjj is σEW=5.21±0.52(stat)±0.56(syst) fb=5.21±0.76 fb. Single-differential cross sections in photon, leading lepton, and leading jet transverse momenta, and double-differential cross sections in mjj and |Δηjj| are also measured. Exclusion limits on anomalous quartic gauge couplings are derived at 95% confidence level in terms of the effective field theory operators M0 to M5, M7, T0 to T2, and T5 to T9
Search for singly and pair-produced leptoquarks coupling to third-generation fermions in proton-proton collisions at s=13 TeV
No full textA search for leptoquarks produced singly and in pairs in proton-proton collisions is presented. We consider the leptoquark (LQ) to be a scalar particle of charge −1/3e coupling to a top quark plus a tau lepton (tτ) or a bottom quark plus a neutrino (bν), or a vector particle of charge +2/3e, coupling to tν or bτ. These choices are motivated by models that can explain a series of anomalies observed in the measurement of B meson decays. In this analysis the signatures tτνb and tτν are probed, using data recorded by the CMS experiment at the CERN LHC at s=13 TeV and that correspond to an integrated luminosity of 137 fb−1. These signatures have not been previously explored in a dedicated search. The data are found to be in agreement with the standard model prediction. Lower limits at 95% confidence level are set on the LQ mass in the range 0.98–1.73 TeV, depending on the LQ spin and its coupling λ to a lepton and a quark, and assuming equal couplings for the two LQ decay modes considered. These are the most stringent constraints to date on the existence of leptoquarks in this scenario
Measurement of the azimuthal anisotropy of [Formula presented] and [Formula presented] mesons in PbPb collisions at sNN=5.02TeV
No full textThe second-order Fourier coefficients (v2) characterizing the azimuthal distributions of [Formula presented] and [Formula presented] mesons produced in PbPb collisions at sNN=5.02TeV are studied. The [Formula presented] mesons are reconstructed in their dimuon decay channel, as measured by the CMS detector. The collected data set corresponds to an integrated luminosity of 1.7nb−1. The scalar product method is used to extract the v2 coefficients of the azimuthal distributions. Results are reported for the rapidity range |y|\u3c2.4, in the transverse momentum interval
Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at √s = 13 TeV
No full textA search is presented for new particles produced at the LHC in proton-proton collisions at s = 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb−1, collected in 2017–2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb−1, collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on simplified models of dark matter, on first-generation scalar leptoquarks decaying to quarks and neutrinos, and on models with large extra dimensions. Several of the new limits, specifically for spin-1 dark matter mediators, pseudoscalar mediators, colored mediators, and leptoquarks, are the most restrictive to date. [Figure not available: see fulltext.
Measurement of the Higgs boson production rate in association with top quarks in final states with electrons, muons, and hadronically decaying tau leptons at √s=13Te
No full textThe rate for Higgs (H) bosons production in association with either one (t H) or two (t t ¯ H) top quarks is measured in final states containing multiple electrons, muons, or tau leptons decaying to hadrons and a neutrino, using proton–proton collisions recorded at a center-of-mass energy of 13Te by the CMS experiment. The analyzed data correspond to an integrated luminosity of 137fb-1. The analysis is aimed at events that contain H → W W , H → τ τ , or H → Z Z decays and each of the top quark(s) decays either to lepton+jets or all-jet channels. Sensitivity to signal is maximized by including ten signatures in the analysis, depending on the lepton multiplicity. The separation among t H , t t ¯ H , and the backgrounds is enhanced through machine-learning techniques and matrix-element methods. The measured production rates for the t t ¯ H and t H signals correspond to 0.92±0.19(stat)-0.13+0.17(syst) and 5.7±2.7(stat)±3.0(syst) of their respective standard model (SM) expectations. The corresponding observed (expected) significance amounts to 4.7 (5.2) standard deviations for t t ¯ H , and to 1.4 (0.3) for t H production. Assuming that the Higgs boson coupling to the tau lepton is equal in strength to its expectation in the SM, the coupling yt of the Higgs boson to the top quark divided by its SM expectation, κt=yt/ytSM, is constrained to be within - 0.9 \u3c κt\u3c - 0.7 or 0.7 \u3c κt\u3c 1.1 , at 95% confidence level. This result is the most sensitive measurement of the t t ¯ H production rate to date
Study of the normalized transverse momentum distribution of W bosons produced in p p ¯ collisions at s =1.96 TeV STUDY of the NORMALIZED TRANSVERSE MOMENTUM ... ABAZOV V. M. et al.
No full textWe present a study of the normalized transverse momentum distribution of W bosons produced in pp¯ collisions, using data corresponding to an integrated luminosity of 4.35 fb-1 collected with the D0 detector at the Fermilab Tevatron collider at s=1.96 TeV. The measurement focuses on the transverse momentum region below 15 GeV, which is of special interest for electroweak precision measurements; it relies on the same detector calibration methods which were used for the precision measurement of the W boson mass. The measured distribution is compared to different QCD predictions and a procedure is given to allow the comparison of any further theoretical models to the D0 data
Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at √s=13Te
No full textA search for dark matter particles is performed using events with a Z boson candidate and large missing transverse momentum. The analysis is based on proton–proton collision data at a center-of-mass energy of 13Te, collected by the CMS experiment at the LHC in 2016–2018, corresponding to an integrated luminosity of 137fb-1. The search uses the decay channels Z → e e and Z → μ μ. No significant excess of events is observed over the background expected from the standard model. Limits are set on dark matter particle production in the context of simplified models with vector, axial-vector, scalar, and pseudoscalar mediators, as well as on a two-Higgs-doublet model with an additional pseudoscalar mediator. In addition, limits are provided for spin-dependent and spin-independent scattering cross sections and are compared to those from direct-detection experiments. The results are also interpreted in the context of models of invisible Higgs boson decays, unparticles, and large extra dimensions
Work Based Learning for Students with Special Needs
Get PDFThis paper will address young adults with special needs as they transition into the world of employment. For many students and parents, school has been predictable and consistent, and it can be challenging to imagine life without it. The results of this paper are mainly surveys of families that have already navigated this transition. What agencies were helpful? What practices produced the best outcomes for long-term employment for students with special needs? Work Based Learning has been shown, by research, to be an effective tool in building long-lasting employment success for students with special needs (Luecking & Gramlich, 2003, p.5). Work Based Learning can take many forms, but the main point is to give students an opportunity to practice working in the community with support. These lessons will help students gain employment, and hopefully, they will maintain employment for years to come
Quantum Chemistry Common Driver and Databases (qcdb) and Quantum Chemistry Engine (qce ngine): Automation and Interoperability among Computational Chemistry Programs
No full textCommunity efforts in the computational molecular sciences (CMS) are evolving toward modular, open, and interoperable interfaces that work with existing community codes to provide more functionality and composability than could be achieved with a single program. The Quantum Chemistry Common Driver and Databases (QCDB) project provides such capability through an application programming interface (API) that facilitates interoperability across multiple quantum chemistry software packages. In tandem with the Molecular Sciences Software Institute and their Quantum Chemistry Archive ecosystem, the unique functionalities of several CMS programs are integrated, including CFOUR, GAMESS, NWChem, OpenMM, Psi4, Qcore, TeraChem, and Turbomole, to provide common computational functions, i.e., energy, gradient, and Hessian computations as well as molecular properties such as atomic charges and vibrational frequency analysis. Both standard users and power users benefit from adopting these APIs as they lower the language barrier of input styles and enable a standard layout of variables and data. These designs allow end-to-end interoperable programming of complex computations and provide best practices options by default
Aesthetic/Design Guidelines for Campus Master Planning Bethel University
Get PDFTable of Contents
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
The Need for Aesthetic Guidelines for Campus Master Planning The Purpose and Use of this Document
Aesthetic Guidelines: “Suggestions Concerning the Character of the New Campus,” by Eugene Johnson (1963) (original version without annotations) . . . . . . . 5
Eugene Johnson’s, “Suggestions Concerning the Character of the New Campus” (with annotations, a history of interpretation and use) Annotations by Wayne L. Roosa, Professor of Art History . . . . . . . . . 7
Further Thinking about the Design of Campus Sites . . . 23
(A Few Modest Recommendations) by Wayne Roosa
A Parable for Understanding the Theology of Design . . . 29
“Meditations of a Potter,” by Eugene Johnson
Abstract
The situation that inspired and drove these aesthetic guidelines for campus master planning were unique to the history Bethel University and Seminary. By the early 1960s, Bethel was outgrowing its site on Snelling Avenue in St. Paul. The opportunity to purchase 160 acres in Arden Hills arose and the leap of faith was taken to buy this land and relocate. But it was not that simple. More was involved than mere practical problems of too-little space solved by an abundance of new space. The new space was so radically different than the old space that far more than just “planning and expansion” was involved. A re-envisioning of the physical expression of “Bethel”—its meaning, mission and shaping of a community— was involved. The purchase of a large and basically “raw” wooded site called for a thoughtful and deliberate understanding of what the experience of students should be in their education at Bethel. The old campus was an urban environment, where “nature” was fully domesticated, the land was flattened, the flora was pruned, mown and bordered by cement sidewalks and asphalt streets. This urban setting by structured on the grid of city planning, and surrounded by vehicular traffic, noise, and the lovely but densely packed neighborhood of houses that is Falcon Heights, Minnesota. In radical contrast, the new site in Arden Hills was a different world altogether. Nature was unfettered. There was no grid and the land was not bull-dozed flat. The site was rolling hills, heavily wooded, and contained a lake and a flowing stream. The freedom to dream and design, to create an entirely new kind of campus was wide open. But what should it look like? How should a community “belong” here? Nothing less than a new conception of “Bethel” vis-à-vis the expressive freedom for architecture, for integration into nature, and for the student experience was needed. The “art of a campus’’ could now be designed to mesh with the spirit of education, the theology that had long informed what “Bethel” meant, and the community of students, faculty, staff and administration that work together. A new incarnation of “Bethel” was possible.
Then president Carl Lundquist understood this and appointed Eugene Johnson to craft a set of aesthetic design guidelines for the development of this campus. What Gene crafted became the “founding ideas” for how natural space, architectural space/function and landscape architecture could collaborate to express Bethel’s mission and give persons a lived experience by way of place that embodied the meaning of their education. This promised a fullness—or better, an embodied—experience of education that is inherently implied in the richness of the full liberal arts plus in-depth majors offered with a spiritual integration of faith