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Showing 1 to 20 of 28 for “"decay modes"”.
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A study of the photon decay modes of the giant dipole resonance in even-A neodymium isotopes
This experiment measured the elastic and inelastic photon scattering cross sections into the ground and first excited state across the isotopic chain 142,146,148,150Nd between the energies of 12 and 18 MeV, spanning the peak of the Isovector Giant Dipole Resonance. Inelastic scattering into the …
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Direct measurement of the decays of charmed D mesons
Charmed D mesons produced in the decay of the t/1(3770) are observed by the Mark III detector at SPEAR. A new technique is applied to these data to derive D branching fractions which do not rely on the measurement of D production cross sections. Measurements are presented for three decay modes of …
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Observations of new cabibbo suppressed decays of the D meson
"We have searched for new decay modes of the charmed D meson using the Mark III detector at the SPEAR e+e-storage ring. Observations of four new decay modes are presented along with upper limits for three others We have measured a cross section times branching ratio of .035 +-.008 +-.004 nb for the …
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Study of D-star mesons produced in electron positron annihilations at 4.14 GeV center of mass energy
… D*. Measurements are presented for the two decay modes of the D*O (-'yDo, and :71'0DO) and the three decay modes of the D*+ (-'yD+, :71'0D+ , and :71'+ DO). The quasi-two-body D* D+iY'D, D* D* and two-body DD cross sections are measured. The decay of the D*+ to :71'+ DO is exploited in a …
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Using Heavy Flavors To Study New Physics
… contributions to select leptonic heavy meson decay modes. Included are calculations of soft photon contributions to a di-lepton decay of B-mesons as well as two-particle hadronic unitary contributions to the rare di-leptonic decay of the neutral D meson. Additionally, constraints are …
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Amplitude Analyses of the D meson(+),Dmeson(+)(s) Going to Kaon(-)kaon(+)pion(+) and D Meson(0) Going to Kaon(o)(s)kaon(+)kaon(-) Final States
… for the intermediate two-body resonant decay modes. We extract decay fractions and relative phases. The KsK +K- analysis provides information on the decomposition of this mode into CP even and CP odd eigenstates channels.
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Study of CP-violation at the Belle experiment
… collected at the KEKB e+ e− collider. Three D0 decay modes are analyzed, K∓ π± , K∓ π± π0 , and K∓ π± π∓ π± . Since the studied decay is a scalar → vector vector decay, three helicity configurations are present. Exploiting the helicity configura- tions via angular analysis, the time-dependent …
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Nonleptonic decays of charm mesons
… three-body nonresonant and two-body resonant decay modes. We extract decay fractions and relative phases. These results are used to infer new branching ratios for the $D\sp{+}\ \to\ \phi\pi\sp{+}$ and $D\sp{+}\ \to\ \overline{K}\sp*$(892)$\sp{0}K\sp{+}$ channels.
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Measurement of CP asymmetry in [beta] --> [sigma] [gamma] decays using a sum of exclusive final states
… the CP asymmetry in [beta] --> [sigma] [gamma] decays. This CP asymmetry is expected to be less than 0.01 in the Standard Model, but could be enhanced up to the order of 0.10 by non-Standard Model contributions. We use a sample of 383 x 106 BB events collected by the BABAR detector at the PEP-II …
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Monte Carlo study of jets by QCD branching
… particle spectra are quite different for various decay modes of toponium.
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"Non- D`D decays of the y"" (3770)"
"A search for inclusive non-D D decays of the '1'""(3770) is performed in a sample of 9.56±0.48 pb-1 collected by the Mark III detector at the SPEAR storage ring, at the Stanford Linear Accelerator Center. To be more specific, a search for inclusive p, A, and c)l decay modes of the '1'""(3770) is …
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Non-equilibrium dynamics of dipole-coupled internal states in cold gases
… nonlocal dissipation, which results in several decay modes into the environment. These decay modes lead to instabilities of many of the steady state phases that occurred in the near-field dipole system, leading to the emergence of more spin density wave and oscillatory phases. Finally, we …
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Precision Measurements of the Vector Boson Scattering Production and Searches for Charged Higgs Bosons at the Large Hadron Collider
… for charged Higgs bosons (H superscript ±) decaying into a top and a bottom quark. The data samples used for the measurements are LHC proton-proton collisions recorded with the CMS detector during 2016–2018 at √𝑠 = 13TeV, corresponding to an integrated luminosity of 137 fb⁻¹. The …
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Studies of the inclusive semileptonic decays of the b-hadrons
… of the lepton is utilized to isolate different decay modes of the b-hadrons, is presented. Using the data collected by the DELPHI detector during the 1994 and 1995 data-taking periods, the inclusive b-hadron semileptonic branching fraction is measured to be B R b→ℓ % =10.75+/-0.15stat …
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Measurement of B-hadron masses at CDF run II
… the mass of b-hadrons in exclusive J/[psi]-decay modes. The correct momentum scale is established by the following steps: validate and quantify distortions or systematic effects in the Central Outer Tracker and Silicon Vertex Detector, apply and fine tune the energy loss corrections per …
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Non-D meson anti D meson decays of the Psi'' meson(3770)
A search for inclusive non-DD decays of the $\Psi\sp{\prime\prime}$(3770) is performed in a sample of 9.56 $\pm$ 0.48 pb$\sp{-1}$ collected by the Mark III detector at the SPEAR storage ring, at the Stanford Linear Accelerator Center. To be more specific, a search for inclusive p, $\bar \Lambda$, …
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Measurement of the Z tau tau boson production cross-section in proton-proton collisions at sqrt(s) = TeV with the ATLAS detector
… cross-section of the <italic>Z</italic> boson decaying to two tau leptons was measured with the ATLAS detector at the LHC. The data sample in this analysis represents an integrated luminosity of 35 pb<super>-1</super> of proton-proton collisions at a center of mass energy of sqrt(s)=7 TeV. …
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Evidence for a Higgs boson in tau decays with the CMS detector
… the search for a Higgs boson through its decay to a pair of tan leptons with the tau-pair subsequently decaying to ail electron, a muon, and neutrinos. The search is performed using data collected from proton-proton collisions by the Compact Muon Solenoid experiment at the Large Hadron …
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The search for majoron emission in xenon-136 and two-neutrino double-beta decay of xenon-134 with the Enriched Xenon Observatory
… is by searching for neutrinoless double-beta decay, a very rare theorized process not allowed under the current theoretical framework of particle physics. Positive observation of neutrinoless double-beta decay would usher in a revolution in particle physics, since it would determine the …
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