Showing papers by "D. M. Asner published in 2012"
Syracuse University1, University of Warwick2, Wayne State University3, University of Bristol4, Pacific Northwest National Laboratory5, Carleton University6, Carnegie Mellon University7, University of Chicago8, Cornell University9, University of Florida10, George Mason University11, University of Illinois at Urbana–Champaign12, Indian Institute of Technology Madras13, Indiana University14, University of Kansas15, Luther College16, University of Minnesota17, Northwestern University18, University of Oxford19, Purdue University20, Rensselaer Polytechnic Institute21, Rice University22, University of Rochester23, Rutherford Appleton Laboratory24
TL;DR: The first flavor-tagged amplitude analysis of the decay of the CLEO II.V, CLEO III, and CLEO-c detectors is presented in this article, where the three most significant amplitudes contribute to the model that best fits the data.
Abstract: The first flavor-tagged amplitude analysis of the decay ${D}^{0}$ to the self-conjugate final state ${K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ is presented. Approximately 3000 signal decays are selected from data acquired by the CLEO II.V, CLEO III, and CLEO-c detectors. The three most significant amplitudes, which contribute to the model that best fits the data, are $\ensuremath{\phi}{\ensuremath{\rho}}^{0}$, ${K}_{1}(1270{)}^{\ifmmode\pm\else\textpm\fi{}}{K}^{\ensuremath{\mp}}$, and nonresonant ${K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$. Separate amplitude analyses of ${D}^{0}$ and ${\overline{D}}^{0}$ candidates indicate no $CP$ violation among the amplitudes at the level of 5% to 30% depending on the mode. In addition, the sensitivity to the $CP$-violating parameter $\ensuremath{\gamma}/{\ensuremath{\phi}}_{3}$ from a sample of 2000 ${B}^{+}\ensuremath{\rightarrow}{\stackrel{\texttildelow{}}{D}}^{0}({K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}){K}^{+}$ decays, where $\stackrel{\texttildelow{}}{D}$ is a ${D}^{0}$ or ${\overline{D}}^{0}$, collected at LHCb or a future flavor facility, is estimated to be $(11.3\ifmmode\pm\else\textpm\fi{}0.3)\ifmmode^\circ\else\textdegree\fi{}$ using the favored model.
22 citations
TL;DR: In this paper, a search for the t-channel exchange of an R-parity violating scalar top quark ((t) over tilde) in the e(+/-)mu(-/+) continuum using 2.1 fb(-1) of data collected by the ATLAS detector in root s = 7 TeV pp collisions at the Large Hadron Collider is presented.
Abstract: This paper presents a search for the t-channel exchange of an R-parity violating scalar top quark ((t) over tilde) in the e(+/-)mu(-/+) continuum using 2.1 fb(-1) of data collected by the ATLAS detector in root s = 7 TeV pp collisions at the Large Hadron Collider. Data are found to be consistent with the expectation from the Standard Model backgrounds. Limits on R-parity-violating couplings at 95 % C.L. are calculated as a function of the scalar top mass (m((t) over tilde)). The upper limits on the production cross section for pp -> e mu X, through the t-channel exchange of a scalar top quark, ranges from 170 fb for m((t) over tilde) = 95 GeV to 30 fb for m((t) over tilde) = 1000 GeV.
18 citations