Law of 1891 (Kappler)

This 1904 reprint of the Law of 1891 was published in vol. I of Charles Kappler’s Indian Affairs. Laws and Treaties. Passed by Congress on March 3, 1891, this law reduced the size of the Fort Berthold Reservation and provided for individual land allotments, in which the government would hold the title for twenty-five years. In addition, this law permitted the US government to open the lands acquired to settlement under the provisions of the homestead laws.https://commons.und.edu/indigenous-gov-docs/1213/thumbnail.jp

An Act Granting to the Saint Paul, Minneapolis and Manitoba Railway Company the Right of Way Through Indian Reservations in Northern Montana and Northwestern Dakota

This 1904 reprint was transcribed and published in vol. I of Charles Kappler’ Indian Affairs. Laws and Treaties. Approved on February 15, 1887, this act granted the Saint Paul, Minneapolis, and Manitoba Railway Company the right of way to build its railroad through the Fort Berthold and Blackfeet Indian Reservations.https://commons.und.edu/indigenous-gov-docs/1222/thumbnail.jp

Proclamation 305—Fort Berthold Reservation in the State of North Dakota

This 1904 reprint of President Benjamin Harrison’s 1891 proclamation was transcribed and published in vol. I of Charles Kappler’s Indian Affairs. Laws and Treaties. Originally signed on May 20, 1891, this proclamation announced that the “Law of 1891,” passed by US Congress on March 3, 1891, was accepted, ratified, and confirmed.https://commons.und.edu/indigenous-gov-docs/1018/thumbnail.jp

An Act to Provide for the Allotment of Lands in Severalty to Indians on the Various Reservations (Kappler) (Kappler)

This 1904 transcription of “An Act to Provide for the Allotment of Lands in Severalty to Indians on the Various Reservations, also knows the General Allotment Act or the Dawes Act of 1887 was printed in vol. I of Charles Kappler’s Indian Affairs. Laws and Treaties. Originally passed on February 8, 1887, this act authorized the US government to break up reservations and tribal lands, previously held in common, into individual plots. Aimed at assimilating Indigenous people into white society, this act promoted agriculture and grazing by allotting tribal members or families who registered a portion of reservation land outlined in the document. Furthermore, this document granted American citizenship to those who accepted the division of tribal lands.https://commons.und.edu/indigenous-gov-docs/1211/thumbnail.jp

Treaty of Fort Laramie, 1868 (Kappler)

This 1904 reprint of the Sioux Treaty of 1868, also known as the Treaty of Fort Laramie, 1868, was transcribed and published in vol. II of Charles Kappler’s Indian Affairs. Laws and Treaties. This treaty, between the United States government and the Sioux and Arapaho Nations, established the Great Sioux Reservation, promised the Sioux would own the Black Hills in perpetuity, and set aside the country north of the North Platte River and east of the summits of the Big Horn Mountains as unceded Indian territory. Furthermore, the U.S. government pledged to close the Bozeman Trail forts and provide food, clothing, and annuities to the tribes, given that they agreed to relinquish all rights to live outside the reservation.https://commons.und.edu/indigenous-gov-docs/1176/thumbnail.jp

Measurement of the B0_s semileptonic branching ratio to an orbitally excited D_s** state, Br(B0_s -> Ds1(2536) mu nu)

In a data sample of approximately 1.3 fb-1 collected with the D0 detector between 2002 and 2006, the orbitally excited charm state D_s1(2536) has been observed with a measured mass of 2535.7 +/- 0.6 (stat) +/- 0.5 (syst) MeV via the decay mode B0_s -> D_s1(2536) mu nu X. A first measurement is made of the branching ratio product Br(b(bar) -> D_s1(2536) mu nu X).Br(D_s1(2536)->D* K0_S). Assuming that D_s1(2536) production in semileptonic decay is entirely from B0_s, an extraction of the semileptonic branching ratio Br(B0_s -> D_s1(2536) mu nu X) is made.Comment: 7 pages, 2 figures, LaTeX, version with minor changes as accepted by Phys. Rev. Let

Search for R-parity violating supersymmetry via the LLE couplings lambda_{121}, lambda_{122} or lambda_{133} in ppbar collisions at sqrt(s)=1.96 TeV

A search for gaugino pair production with a trilepton signature in the framework of R-parity violating supersymmetry via the couplings lambda_121, lambda_122, or lambda_133 is presented. The data, corresponding to an integrated luminosity of L~360/pb, were collected from April 2002 to August 2004 with the D0 detector at the Fermilab Tevatron Collider, at a center-of-mass energy of sqrt(s)=1.96 TeV. This analysis considers final states with three charged leptons with the flavor combinations eel, mumul, and eetau (l=e or mu). No evidence for supersymmetry is found and limits at the 95% confidence level are set on the gaugino pair production cross section and lower bounds on the masses of the lightest neutralino and chargino are derived in two supersymmetric models.Comment: 9 pages, 4 figures (fig2 includes 3 subfigures

Simultaneous measurement of the ratio B(t->Wb)/B(t->Wq) and the top quark pair production cross section with the D0 detector at sqrt(s)=1.96 TeV

We present the first simultaneous measurement of the ratio of branching fractions, R=B(t->Wb)/B(t->Wq), with q being a d, s, or b quark, and the top quark pair production cross section sigma_ttbar in the lepton plus jets channel using 0.9 fb-1 of ppbar collision data at sqrt(s)=1.96 TeV collected with the D0 detector. We extract R and sigma_ttbar by analyzing samples of events with 0, 1 and >= 2 identified b jets. We measure R = 0.97 +0.09-0.08 (stat+syst) and sigma_ttbar = 8.18 +0.90-0.84 (stat+syst)} +/-0.50 (lumi) pb, in agreement with the standard model prediction.Comment: submitted to Phys.Rev.Letter

Measurement of the Bs0B^{0}_{s} Lifetime Using Semileptonic Decays

We report a measurement of the $B^0_{s}$ lifetime in the semileptonic decay channel $B^0_{s}\to D^-_s \mu^{+}\nu X$ (and its charge conjugate), using approximately 0.4 fb$^{-1}$ of data collected with the D0 detector during 2002 -- 2004. We have reconstructed 5176 $D^-_s \mu^{+}$ signal events, where the $D_s^-$ is identified via the decay $D_s^-\to \phi\pi^-$, followed by $\phi\to K^+ K^-$. Using these events, we have measured the $B^0_s$ lifetime to be $\tau(B^0_{s}) = 1.398 \pm 0.044$ $({stat}) ^{+0.028}_{-0.025}$ $({syst}) {ps}$. This is the most precise measurement of the $B_s^0$ lifetime to date.Comment: To appear in Phys. Rev. Lett., 7 pages, 2 figure

Search for Neutral Higgs Bosons Decaying to Tau Pairs in p-pbar Collisions at sqrt(s) = 1.96 TeV

A search for the production of neutral Higgs bosons Phi decaying into tau^+tau^- final states in p-pbar collisions at a center-of-mass energy of 1.96 TeV is presented. The data, corresponding to an integrated luminosity of up to 348 pb^-1, were collected by the D0 experiment at the Fermilab Tevatron Collider. Since no excess compared to the expectation from standard model processes is found, limits on the production cross section times branching ratio are set. The results are combined with those obtained from the D0 search for Phi b(b) to b-bbar-b(bbar) and are interpreted in the minimal supersymmetric standard model.Comment: Version accpeted by Phys. Rev. Lett. (minor changes