1,519 research outputs found
Reconstructing WIMP properties through an interplay of signal measurements in direct detection, Fermi-LAT, and CTA searches for dark matter
We examine the projected ability to reconstruct the mass, scattering, and
annihilation cross section of dark matter in the new generation of large
underground detectors, XENON-1T, SuperCDMS, and DarkSide-G2, in combination
with diffuse gamma radiation from expected 15 years of data from Fermi-LAT
observation of 46 local spiral dwarf galaxies and projected CTA sensitivity to
a signal from the Galactic Center. To this end we consider several benchmark
points spanning a wide range of WIMP mass, different annihilation final states,
and large enough event rates to warrant detection in one or more experiments.
As previously shown, below some 100 GeV only direct detection experiments will
in principle be able to reconstruct the WIMP mass well. This may, in case a
signal at Fermi-LAT is also detected, additionally help restricting \sigma v
and the allowed decay branching rates. In the intermediate range between some
100 GeV and up a few hundred GeV, direct and indirect detection experiments can
be used in complementarity to ameliorate the respective determinations, which
in individual experiments can at best be rather poor, thus making the WIMP
reconstruction in this mass range very challenging. At large WIMP mass, ~1 TeV,
CTA will have the ability to reconstruct mass, annihilation cross section, and
the allowed decay branching rates to very good precision for the
or purely leptonic final state, good for the case, and rather poor for
. A substantial improvement can potentially be achieved by reducing
the systematic uncertainties, increasing exposure, or by an additional
measurement at Fermi-LAT that would help reconstruct the annihilation cross
section and the allowed branching fractions to different final states.Comment: 29 pages, 14 figures. References added, minor corrections. Published
versio
Constrained MSSM favoring new territories: The impact of new LHC limits and a 125 GeV Higgs boson
We present an updated and extended global analysis of the Constrained MSSM
(CMSSM) taking into account new limits on supersymmetry from ~5/fb data sets at
the LHC. In particular, in the case of the razor limit obtained by the CMS
Collaboration we simulate detector efficiency for the experimental analysis and
derive an approximate but accurate likelihood function. We discuss the impact
on the global fit of a possible Higgs boson with mass near 125 GeV, as implied
by recent data, and of a new improved limit on BR(B_s->\mu\mu). We identify
high posterior probability regions of the CMSSM parameters as the
stau-coannihilation and the A-funnel region, with the importance of the latter
now being much larger due to the combined effect of the above three LHC results
and of dark matter relic density. We also find that the focus point region is
now disfavored. Ensuing implications for superpartner masses favor even larger
values than before, and even lower ranges for dark matter spin-independent
cross section, \sigma^{SI}_p<10^{-9} pb. We also find that relatively minor
variations in applying experimental constraints can induce a large shift in the
location of the best-fit point. This puts into question the robustness of
applying the usual chisquare approach to the CMSSM. We discuss the
goodness-of-fit and find that, while it is difficult to calculate a p-value,
the g-2 constraint makes, nevertheless, the overall fit of the CMSSM poor. We
consider a scan without this constraint, and we allow \mu\ to be either
positive or negative. We find that the global fit improves enormously for both
signs of \mu, with a slight preference for \mu<0 caused by a better fit to
BR(b->s\gamma) and BR(B_s->\mu\mu).Comment: 24 pages, 17 figures. PRD-approved version; Higgs bounds case removed
as obsolete in light of the Higgs discover
Cowden syndrome and the associated Lhermitte-Duclos disease â Case presentation
We report a patient with features of Cowden syndrome (CS). A 35-year old woman has been suffering from headache, vertigo and mild imbalance since 2 years. Examination showed subtle mucocutaneous lesions: papillomatous papules on the gingival mucosa, a few verrucous acral skin lesions and macrocephaly. Magnetic resonance imaging (MRI) revealed a tumor of the left cerebellar hemisphere with âtiger-stripedâ pattern on T2-weighted image (T2WI), typical of Lhermitte-Duclos disease (LDD) â one of the pathognomonic but infrequent features of CS. A pathogenic de novo heterozygous PTEN mutation: c.49C>T variant has been identified in exon 1 of the PTEN gene by sequencing
The Carter Women Veterans Historical Project at The University of North Carolina at Greensboro: The Oral History Segment
A class reunion was the inspiration for the Carter Women Veterans Project at the Woman?s College of the University of North Carolina, now the University of North Carolina at Greensboro (UNCG). The Class of 1950 Reunion Committee met with University Archivist Betty Carter in the 1990s to plan their upcoming 50th reunion. The meetings included discussions about their classmates who had attended Woman?s College from 1946 to 1950 on the GI Bill
Women Step Up to Serve
Discusses the role of women in World War II. During World War II, over 350,000 women from across the United Stated served in the military. More than 7,000 of these women came from North Carolina. As far back as the Revolutionary War, women had served with the military as nurses, cooks, and laundresses. However, these women were considered civilians and not military. It was not until World War I, when some women served in the U.S. Navy as âYeomanettes,â who performed mostly clerical duties, that women were considered part of the military. In 1942 officials established the Womenâs Army Auxiliary Corps (WAAC), giving women auxiliary status. Females did get military status when the army disbanded the WAAC and established the Womenâs Army Corps (WAC) in July 1943. Other military branches quickly followed the armyâs lead, producing the WAVES, SPARS, and WASPs. Many North Carolina women who served during World War II have shared their experiences through oral history interviews conducted for the Betty H. Carter Women Veterans Historical Project based in the University Archives & Manuscripts department at The University of North Carolina at Greensboro
Documenting Appalachia
âDocumenting Appalachiaâ is a digital project produced by Appalachian State University in Boone, North Carolina. The purpose of the project is âto provide off-site access to valuable research materials related to the Appalachian region and Appalachian State University.â This project documents the history of the Appalachian region through four collections: the W. Amos Abrams Folksong Collection, the I.G. Greer Folksong Collection, the Appalachian State University Historical Photographs, and the Appalachian Ethnicity Resources. It was developed in collaboration with Appalachian State Universityâs Center for Appalachian Studies, Appalachian Cultural Museum and the Appalachian Journal
Greensboro VOICES: Documenting the Civil Rights Movement in Greensboro, North Carolina
On February 1, 1960, Greensboro, North Carolina became the epicenter for the civil rights movement in the United States when four African American students from North Carolina Agricultural & Technical State College (NC A&T) entered the segregated F.W. Woolworth store in downtown Greensboro and requested to be served at the whites-only lunch counter. In the following days and months, demonstrations spread across not only North Carolina but across the South where other sit-ins were held to obtain racial equality through peaceful protests.
This history is documented on the âGreensboro VOICESâ Web site, http://library.uncg.edu/depts/archives/civrights/, which was created by the University Archives and the Digital Projects Office at the University of North Carolina at Greensboro (UNCG) to trace the struggle for civil rights in Greensboro and the surrounding area. âGreensboro VOICESâ (an acronym for âVoicing Observation in Civil Rights and Equality Strugglesâ) gives voice to those in the civil rights struggle by making 142 oral history interviews as well as biographical sketches of each interviewee available to students and scholars
The Building of Jackson Library 1948-1950.
On June 5, 2010, Jackson Library celebrated sixty years of service to The
University of North Carolina at Greensboro. Founding President Charles Duncan
McIver once said, âA great library is the very heart of the literary life of a great
institution,â â a statement even more true today than it was in the 1890s when
the student population numbered several hundred. Today Jackson Library, as
part of the University Libraries, serves a student population of approximately
18,000 with a collection of over a million books, more than 47,000 electronic and
print journal subscriptions, over 500 electronic databases, and 640,000 federal
government documents
Preserving Our History: The Rotary Club of Greensboro, North Carolina, Oral History Project
In the fall of 2006, Bob Cone, President of the Rotary Club of Greensboro, spoke to fellow Rotarian Patricia Sullivan, Chancellor of The University of North Carolina at Greensboro, about his growing interest in preserving the cityâs history by interviewing club members. Cone asked Sullivan about the possibility of the University conducting an oral history project in collaboration with the Rotary Club. The University Archives and Manuscripts department, under the guidance of University Archivist Betty Carter, had been successful in developing similar projects, including the Women Veterans Historical Collection, which includes numerous oral histories. Soon the partnership was underway
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