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in subjects: "D Minus Mesons"

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Production asymmetries in x{sub F} and P{sub t}{sup 2} for D{sup {+-}} mesons

Non-zero asymmetries have been reported in x{sub f} distributions of leading and non-leading charmed mesons produced from hadronic beams. Production models have also been proposed that would explain these asymmetries and make predictions on how these asymmetries will depend on P{sub t}{sup 2}. The authors present differences in leading and non-leading D charged meson production as a doubly differential function of both P{sub t}{sup 2} and x{sub f}. This information is from the preliminary analy… more

Date: July 1, 1994

Creator: E791 Collaboration

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Beam flavor dependence in the hadroproduction of D{sup {+-}} and D{sub s}{sup {+-}} mesons

Fermilab E769, a fixed-target experiment conducted during the 1987--88 running period, yielded large numbers of charm particles. Through collisions of 250 GeV {pi}{sup {+-}}, K{sup {+-}}, and p on a multifoil target, E769 allows for studies of beam flavor dependence in the hadroproduction of charm. Through the decay modes D{sup +} {yields} K{sup {minus}}{pi}{sup +}{pi}{sup +}, D{sub s}{sup +} {yields} {phi}{pi}{sup +}, and D{sub s}{sup +} {yields} {anti K}{sup *0} K{sup +} (and charge conjugate… more

Date: July 1, 1994

Creator: Collaboration, Fermilab E769

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

2\beta + \gamma from B^0 to D^\mp K^0 \pi^\pm Decays at BaBar: aSimulation Study

The authors present the results of a simulation study to perform the extraction of 2{beta} + {gamma} from B{sup 0} {yields} D{sup {-+}}K{sup 0}{pi}{sup {+-}} decays through a time-dependent Dalitz analysis of BaBar data.

Date: April 16, 2007

Creator: Polci, Francesco; Schune, Marie-Helene; Stocchi, Achille & /Orsay, LAL

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Charm production asymmetries at the Fermilab experiments

I present asymmetries between the production of charm particles and anti-particles from Fermilab experiments, E687, E769 and E791. The results are shown as a function of x{sub F} and p{sub t}{sup 2} for D{sup {+-}} and D{sub s}{sup {+-}} mesons and for pion, kaon and photon beams and compared against current models. Results are also shown for a recent analysis of correlations between production of charm mesons and an associated pion. 14 refs., 5 figs., 3 tabs.

Date: January 1, 1997

Creator: Carter, T.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Opportunities for high-sensitivity charm physics at Fermilab

The CO initiative under consideration at Fermilab makes feasible a charm experiment reconstructing >10{sup 9} charm decays, four orders - of magnitude beyond the largest extant sample. The experiment might commence data-taking as early as 1999. In addition to programmatic charm physics such as spectroscopy, lifetimes, and QCD tests, it will have significant new-physics reach in the areas of CP violation, flavor-changing neutral-current and lepton-number-violating decays, and D{sup o} {bar D} {b… more

Date: July 1, 1996

Creator: Kaplan, D. M.; Burnstein, R. A.; Lederman, L. M.; Rubin, H. A.; Brown, C. N.; Christian, D. C. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Time dependent B{sup 0} {anti B}{sup 0} mixing at CDF

WE describe two measurements of {Delta}{ital m}{sub d}. The first uses {ital B} {r_arrow} {ital vlD}{sup (*)} events and a same-side flavor tagging algorithm. the second uses dilepton events. From the average of these two measurements we find {Delta}{ital m}{sub d} = 0. 466 {+-}0.037{+-} 0.031 ps{sup -1}.

Date: November 1, 1996

Creator: CDF Collaboration

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Measurement of CP observables in B__ ->D_CPK__ decays and constraints on the CKM angle gamma

Using the entire sample of 467 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, we perform a 'GLW' analysis of B{sup {+-}} {yields} D{sup {+-}} decays, using decay modes in which the neutral D meson decays to either CP-eigenstates or non-CP-eigenstates. We measure the partial decay rate charge asymmetries for CP-even and CP-odd D final states to be A{sub CP+} = 0.25 {+-} 0.06 {+-} 0.02 and A{sub CP-} = -0.09 {+-}… more

Date: August 25, 2010

Creator: del Amo Sanchez, P.; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department