U N T Established 1890 U N T
University Libraries

Digital Collections

Access

Resource Type

Partner

Collection

Serial/Series Title

Degree Department

Degree Discipline

Degree Level

Country

States

Counties

Decade

Year

Month

Day

Language

6,511 Matching Results

Start Over Month April Day 2nd Language English

Results open in a new window/tab.

Results: 1 - 24 of 6,511 next
Best Match Title Creator Date Created (Newest) Date Created (Oldest) Date Added (Newest) Date Added (Oldest)
Jet Mass and Substructure of Inclusive Jets in $\sqrt{s}=7$ TeV $Pp$ Collisions with the ATLAS Experiment (open access)

Jet Mass and Substructure of Inclusive Jets in $\sqrt{s}=7$ TeV $Pp$ Collisions with the ATLAS Experiment

None
Date: April 2, 2013
Creator: Aad, Georges
Object Type: Article
System: The UNT Digital Library
Search for New Bottomlike Quark Pair Decays Q Q-Bar to (T W- ) (T-Bar W -) in Same-Charge Dilepton Events (open access)

Search for New Bottomlike Quark Pair Decays Q Q-Bar to (T W- ) (T-Bar W -) in Same-Charge Dilepton Events

We report the most restrictive direct limits on masses of fourth-generation down-type quarks b{prime}, and quark-like composite fermions (B or T{sub 5/3}), decaying promptly to tW{sup {-+}}. We search for a significant excess of events with two same-charge leptons (e, {mu}), several hadronic jets, and missing transverse energy. An analysis of data from p{bar p} collisions with an integrated luminosity of 2.7 fb{sup -1} collected with the CDF II detector at Fermilab yields no evidence for such a signal, setting mass limits m{sub b{prime}}, m{sub B} > 338 GeV/c{sup 2} and m{sub T{sub 5/3}} > 365 GeV/c{sup 2} at 95% confidence level.
Date: April 2, 2012
Creator: Aaltonen, T.; Adelman, J.; Alvarez Gonzalez, B.; Amerio, S.; Amidei, D.; Anastassov, A. et al.
Object Type: Article
System: The UNT Digital Library
Fermi LAT Observations of LS I +61 303: First Detection of an Orbital Modulation in GeV Gamma Rays (open access)

Fermi LAT Observations of LS I +61 303: First Detection of an Orbital Modulation in GeV Gamma Rays

This Letter presents the first results from the observations of LS I +61{sup o}303 using Large Area Telescope data from the Fermi Gamma-Ray Space Telescope between 2008 August and 2009 March. Our results indicate variability that is consistent with the binary period, with the emission being modulated at 26.6 {+-} 0.5 days. This constitutes the first detection of orbital periodicity in high-energy gamma rays (20 MeV-100 GeV, HE). The light curve is characterized by a broad peak after periastron, as well as a smaller peak just before apastron. The spectrum is best represented by a power law with an exponential cutoff, yielding an overall flux above 100 MeV of 0.82 {+-} 0.03(stat) {+-} 0.07(syst) 10{sup -6} ph cm{sup -2} s{sup -1}, with a cutoff at 6.3 {+-} 1.1(stat) {+-} 0.4(syst) GeV and photon index {Gamma} = 2.21 {+-} 0.04(stat) {+-} 0.06(syst). There is no significant spectral change with orbital phase. The phase of maximum emission, close to periastron, hints at inverse Compton scattering as the main radiation mechanism. However, previous very high-energy gamma ray (>100 GeV, VHE) observations by MAGIC and VERITAS show peak emission close to apastron. This and the energy cutoff seen with Fermi suggest that the link …
Date: April 2, 2012
Creator: Abdo, A. A.; Ackermann, M.; Ajello, M.; Atwood, W. B.; Axelsson, M.; Baldini, L. et al.
Object Type: Article
System: The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 18, No. 152, Ed. 1 Sunday, April 2, 1933 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 18, No. 152, Ed. 1 Sunday, April 2, 1933

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes local and campus news along with advertising.
Date: April 2, 1933
Creator: Abrams, Samuel K.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Breckenridge American (Breckenridge, Tex.), Vol. 9, No. 128, Ed. 1, Tuesday, April 2, 1929 (open access)

The Breckenridge American (Breckenridge, Tex.), Vol. 9, No. 128, Ed. 1, Tuesday, April 2, 1929

Daily newspaper from Breckenridge, Texas that includes local, state and national news along with extensive advertising.
Date: April 2, 1929
Creator: Adair, A. Garland
Object Type: Newspaper
System: The Portal to Texas History
Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 73, No. 65, Ed. 1 Friday, April 2, 1982 (open access)

Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 73, No. 65, Ed. 1 Friday, April 2, 1982

Daily newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date: April 2, 1982
Creator: Adams, Bill
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Harper County Democrat (Buffalo, Okla.), Vol. 8, No. 49, Ed. 1 Friday, April 2, 1915 (open access)

The Harper County Democrat (Buffalo, Okla.), Vol. 8, No. 49, Ed. 1 Friday, April 2, 1915

Weekly newspaper from Buffalo, Oklahoma that includes local, state, and national news along with advertising.
Date: April 2, 1915
Creator: Adams, E. Lee
Object Type: Newspaper
System: The Gateway to Oklahoma History
[Letter from Fred W. Adams to Truett Latimer, April 2, 1953] (open access)

[Letter from Fred W. Adams to Truett Latimer, April 2, 1953]

Letter from Fred W. Adams to Truett Latimer discussing how passing House Bill 261 to amend the Workmen's Compensation Act would greatly benefit Texas workers and employers.
Date: April 2, 1953
Creator: Adams, Fred W.
Object Type: Letter
System: The Portal to Texas History
The Pioneer Exponent. (Comanche, Tex.), Vol. 22, No. 31, Ed. 1 Friday, April 2, 1909 (open access)

The Pioneer Exponent. (Comanche, Tex.), Vol. 22, No. 31, Ed. 1 Friday, April 2, 1909

Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date: April 2, 1909
Creator: Adams, Jesse M.
Object Type: Newspaper
System: The Portal to Texas History
Convair Weekly Report to Supervision, Number 952, April 2, 1975 (open access)

Convair Weekly Report to Supervision, Number 952, April 2, 1975

Newsletter written for supervisors working at the Convair Division in Fort Worth containing news about events and activities, workplace reminders, and other relevant information.
Date: April 2, 1975
Creator: Adams, Richard E.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
The Edmond Enterprise (Edmond, Okla.), Vol. 25, No. 10, Ed. 1 Thursday, April 2, 1925 (open access)

The Edmond Enterprise (Edmond, Okla.), Vol. 25, No. 10, Ed. 1 Thursday, April 2, 1925

Weekly newspaper from Edmond, Oklahoma that includes local, state, and national news along with advertising.
Date: April 2, 1925
Creator: Adamson, Royce B.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Edmond Enterprise (Edmond, Okla.), Vol. 30, No. 9, Ed. 1 Thursday, April 2, 1931 (open access)

The Edmond Enterprise (Edmond, Okla.), Vol. 30, No. 9, Ed. 1 Thursday, April 2, 1931

Weekly newspaper from Edmond, Oklahoma that includes local, state, and national news along with advertising.
Date: April 2, 1931
Creator: Adamson, Royce B.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Fifteenth Street News (Midwest City, Okla.), Vol. 21, No. 23, Ed. 1 Friday, April 2, 1993 (open access)

Fifteenth Street News (Midwest City, Okla.), Vol. 21, No. 23, Ed. 1 Friday, April 2, 1993

Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date: April 2, 1993
Creator: Addington, Kathy
Object Type: Newspaper
System: The Gateway to Oklahoma History
Cotton-Picker. (open access)

Cotton-Picker.

Patent for a skeleton glove for picking cotton that protects the fingers from chafing from the plant through the use of metal or leather thimbles on the end of each finger of the glove.
Date: April 2, 1907
Creator: Adkins, Willis
Object Type: Patent
System: The Portal to Texas History
Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 72, No. 64, Ed. 1 Thursday, April 2, 1981 (open access)

Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 72, No. 64, Ed. 1 Thursday, April 2, 1981

Daily newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date: April 2, 1981
Creator: Adkisson, Larry R.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 39, No. 127, Ed. 1 Thursday, April 2, 1953 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 39, No. 127, Ed. 1 Thursday, April 2, 1953

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: April 2, 1953
Creator: Adler, Dot
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Oilton Gusher (Oilton, Okla.), Vol. 9, No. 44, Ed. 1 Thursday, April 2, 1925 (open access)

The Oilton Gusher (Oilton, Okla.), Vol. 9, No. 44, Ed. 1 Thursday, April 2, 1925

Weekly newspaper from Oilton, Oklahoma that includes local, state, and national news along with advertising.
Date: April 2, 1925
Creator: Admire, Eli L.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Crockett Courier (Crockett, Tex.), Vol. 25, No. 10, Ed. 1 Thursday, April 2, 1914 (open access)

The Crockett Courier (Crockett, Tex.), Vol. 25, No. 10, Ed. 1 Thursday, April 2, 1914

Weekly newspaper from Crockett, Texas that includes local, state and national news along with advertising.
Date: April 2, 1914
Creator: Aiken, W. W.
Object Type: Newspaper
System: The Portal to Texas History
The 60-month all-sky BAT Survey of AGN and the Anisotropy of Nearby AGN (open access)

The 60-month all-sky BAT Survey of AGN and the Anisotropy of Nearby AGN

Surveys above 10 keV represent one of the the best resources to provide an unbiased census of the population of Active Galactic Nuclei (AGN). We present the results of 60 months of observation of the hard X-ray sky with Swift/BAT. In this timeframe, BAT detected (in the 15-55 keV band) 720 sources in an all-sky survey of which 428 are associated with AGN, most of which are nearby. Our sample has negligible incompleteness and statistics a factor of {approx}2 larger over similarly complete sets of AGN. Our sample contains (at least) 15 bona-fide Compton-thick AGN and 3 likely candidates. Compton-thick AGN represent a {approx}5% of AGN samples detected above 15 keV. We use the BAT dataset to refine the determination of the LogN-LogS of AGN which is extremely important, now that NuSTAR prepares for launch, towards assessing the AGN contribution to the cosmic X-ray background. We show that the LogN-LogS of AGN selected above 10 keV is now established to a {approx}10% precision. We derive the luminosity function of Compton-thick AGN and measure a space density of 7.9{sub -2.9}{sup +4.1} x 10{sup -5} Mpc{sup -3} for objects with a de-absorbed luminosity larger than 2 x 10{sup 42} erg s{sup -1}. …
Date: April 2, 2012
Creator: Ajello, M.; /KIPAC, Menlo Park; Alexander, D.M.; U., /Durham; Greiner, J.; /Garching, Max Planck Inst., MPE et al.
Object Type: Article
System: The UNT Digital Library
[Letter from Sister M. Alacoque to Daniel W. Kempner, April 2, 1951] (open access)

[Letter from Sister M. Alacoque to Daniel W. Kempner, April 2, 1951]

Letter from Sister M. Alacoque to Daniel W. Kempner sincerely thanking him for the generous donation of $10 to the St. Mary's Orphanage.
Date: April 2, 1951
Creator: Alacoque, M.
Object Type: Letter
System: The Portal to Texas History
Ultrabright Laser-based MeV-class Light Source (open access)

Ultrabright Laser-based MeV-class Light Source

We report first light from a novel, new source of 10-ps 0.776-MeV gamma-ray pulses known as T-REX (Thomson-Radiated Extreme X-rays). The MeV-class radiation produced by TREX is unique in the world with respect to its brightness, spectral purity, tunability, pulse duration and laser-like beam character. With T-REX, one can use photons to efficiently probe and excite the isotope-dependent resonant structure of atomic nucleus. This ability will be enabling to an entirely new class of isotope-specific, high resolution imaging and detection capabilities.
Date: April 2, 2008
Creator: Albert, F.; Anderson, G.; Anderson, S.; Bayramian, A.; Berry, B.; Betts, S. et al.
Object Type: Article
System: The UNT Digital Library
The Cuero Record (Cuero, Tex.), Vol. 51, No. 78, Ed. 1 Monday, April 2, 1945 (open access)

The Cuero Record (Cuero, Tex.), Vol. 51, No. 78, Ed. 1 Monday, April 2, 1945

Daily newspaper from Cuero, Texas that includes local, state, and national news along with advertising.
Date: April 2, 1945
Creator: Aldridge, C. C., Jr.
Object Type: Newspaper
System: The Portal to Texas History
The Cuero Record (Cuero, Tex.), Vol. 53, No. 82, Ed. 1 Wednesday, April 2, 1947 (open access)

The Cuero Record (Cuero, Tex.), Vol. 53, No. 82, Ed. 1 Wednesday, April 2, 1947

Daily newspaper from Cuero, Texas that includes local, state, and national news along with advertising.
Date: April 2, 1947
Creator: Aldridge, C. C., Jr.
Object Type: Newspaper
System: The Portal to Texas History
The Cuero Record (Cuero, Tex.), Vol. 54, No. 78, Ed. 1 Friday, April 2, 1948 (open access)

The Cuero Record (Cuero, Tex.), Vol. 54, No. 78, Ed. 1 Friday, April 2, 1948

Daily newspaper from Cuero, Texas that includes local, state, and national news along with advertising.
Date: April 2, 1948
Creator: Aldridge, C. C., Jr.
Object Type: Newspaper
System: The Portal to Texas History