neutral current: flavor changing
Search for Flavor-Changing Neutral-Current Charm Decays
... Figure 1: Standard model short-distance contributions to the c → uℓ + ℓ − transition. 1 INTRODUCTION In the Standard Model (SM), flavor-changing neutral-current (FCNC) processes cannot occur ...
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A search for the flavor-changing neutral current decay $B^0_s \rightarrow \mu^+ \mu^-$ in $p\overline{p}$ collisions at $\sqrt{s}$ = 1.96 TeV with the DO detector
... The purely leptonic decays B 0 d,s → µ + µ − [1] are flavor- changing neutral current (FCNC) processes. In the stan- dard model (SM), these decays are forbidden at the tree level and proceed ...
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Search for production of single top quarks via $tcg$ and $tug$ flavor-changing neutral current couplings
... g /Λ and κ u g /Λ. To estimate systematic uncertainties, we consider ef- fects that alter the overall normalization of the distri- butions and those that also change their shapes. The dominant normalization effects are ...
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Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at $\sqrt{s}=$ 13 TeV
... 4 Event selection The particle-flow (PF) algorithm [ 35 ] reconstructs and identifies each individual particle with an optimized combination of information from the various elements of the CMS de- tector. The energy of ...
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Analysis of B [sigma] flavor oscillations at CDF
... A likelihood fitting framework is implemented and appropriate models and tech- niques developed for describing the mass, proper decay time, and flavor tagging char- a[r] ...
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Competitively Neutral Universal Service Obligations
... 5.2. Competitive neutrality This section highlights the analogy between the above approach to USO financing and the concept of competitive neutrality. Competitive neutrality has often been proposed as a qualifying ...
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A search for flavour changing neutral currents in top-quark decays in pp collision data collected with the ATLAS detector at sqrt(s) = 7 TeV
... HERA [ 31 , 32 ] colliders, and at the LHC [ 33 ]. The best current direct search limits on the top quark FCNC branching fraction are 3.2% for both t → qγ [ 23 ] and t → Zq (q = u, c) [ 24 ]. This article reports ...
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Changing time and emotions
... which manipulate the emotional valence in waiting conditions (Curton and Lordahl 1974; Edmonds, Cahoon, and Bridges 1981; Langer, Wapner, and Werner 1961). The problem with waiting time conditions is that subjects are ...
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A Changing Wind Collision
... to changing temperatures (since they appear quite similar whatever the year considered) but rather to an increase in absorbing columns with time (Ta- ble 2, ...
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The role of lepton flavor symmetries in leptogenesis
... of flavor symmetries in the lepton sector may have several consequences for the generation of the baryon asymmetry of the Universe via ...with flavor symmetries, before or after flavor symmetry ...
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Probing Lepton Flavor Triality with Higgs Boson Decay
... lepton flavor symmetry predicted by non-Abelian discrete symmetries, such as A4, T7, and ∆(27), which explain successfully the observed pattern of neutrino tribimaximal ...
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Probing the scotogenic model with lepton flavor violating processes
... lepton flavor violation experiments. Lepton flavor violation in the scotogenic model has already been studied in some ...lepton flavor violating (LFV) processes were ...lepton flavor violation ...
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Collider aspects of flavor physics at high Q
... 2.4.2 A Case Study If the fourth family is primarily mixing with the first two families, the dominant decay channels will be t ′ → W + s(d) and b ′ → W − c(u). In this case, since the light quark jets are ...
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On non-exponential stability of delay systems of neutral type with non-singular neutral term
... tions// volume 99 of Applied Mathematical Sciences, Springer-Verlag, New York – 1993. [8] R. Rabah, G. M. Sklyar, and P. Yu. Barkhayev. Stability analysis of mixed retarded-neutral type systems, Preprint IRCCyN, ...
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Savage's Theorem Under Changing Awareness
... 9 Concluding remarks I have presented a unified framework and theorem for preferences under uncertainty and changing awareness. Preferences are governed by expected utility with three rules for revising utilities ...
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A Changing Idea of Justice
... I am delighted that at the Canadian Centre for Victims of Torture (CCVT), I have found my full identity as a human rights activist, a refugee, a survivor of torture, an educator and[r] ...
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Policy Implications of Changing Longevity
... E-mail: gregory.ponthiere@ens.fr Abstract 5 Our societies are witnessing a steady increase in longevity. This demographic evolution is accompanied by some convergence across countries, whereas substantial longevity ...
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The Changing Face of Retirement
... current hIgh retIrement rePlacement IncomeS do not create a SenSe oF readIneSS among current workForce employees in the United Kingdom, the United States and Germany all show high levels[r] ...
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CP violation in flavor-tagged Bs̳ --> J/[psi][phi] decays
... Rather than providing a full theoretical description or an exhaustive catalogue of experimental tests of Standard Model weak processes, we describe in this section [r] ...
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Measurement of $B_d$ mixing using opposite-side flavor tagging
... meson flavor at its production can be identified using information from the reconstructed side or from the opposite side (see ...the flavor using charge correlation between “fragmentation tracks” associated ...
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