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Search for effective Lorentz and CPT violation using ZEUS data
Freier ZugriffAbt, Iris / Aggarwal, R. / Bussey, Peter et al. | BASE | 2022^{\pm}p$ data. Symmetry-violating effects can lead to time-dependent oscillations of otherwise time-independent observables, including ...Schlagwörter: electron p: deep inelastic scattering, positron p: deep inelastic scattering -
Search for $\it{B^+ \to e^+ \nu}$ and $\it{B^+ \to \mu^+ \nu}$ decays using hadronic tagging
Freier ZugriffYook, Y. / Kwon, Y. -J. / Bahinipati, S. et al. | BASE | 2014Schlagwörter: electron positron: annihilation -
Measurement of electroweak-induced production of Wγ with two jets in pp collisions at $\sqrt{s} =$ 8 TeV and constraints on anomalous quartic gauge couplings
Freier ZugriffKhachatryan, Vardan / Sirunyan, Albert M / Flechl, Martin et al. | BASE | 2016proton-proton collisions produced at the LHC. Candidate events are selected with exactly one muon or electron, missing transverse momentum, one ...Schlagwörter: electron -
Measurement of $\cos{2\beta}$ in $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} \pi^{+} \pi^{-}$ decays by a combined time-dependent Dalitz plot analysis of BaBar and Belle data
Freier ZugriffAdachi, I. / Adye, T. / Asner, D. M. et al. | BASE | 2018Schlagwörter: electron positron: annihilation, electron positron: colliding beams -
Measurements of Partial Branching Fractions of Inclusive $B \to X_u \, \ell^+\, \nu_{\ell}$ Decays with Hadronic Tagging
Freier ZugriffCao, L. / Sutcliffe, W. / Ayad, R. et al. | BASE | 2021^0$ mesons as well as for electron and muon final states. No isospin breaking or lepton flavor universality violating effects are observed. ...Schlagwörter: electron -
First evidence for $\cos 2\beta>0$ and resolution of the CKM Unitarity Triangle ambiguity by a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} \pi^{+} \pi^{-}$ decays
Freier ZugriffAdachi, I. / Adye, T. / Asner, D. M. et al. | BASE | 2018Schlagwörter: electron positron: annihilation, electron positron: colliding beams -
Deep inelastic scattering events with a large rapidity gap at HERA
Freier ZugriffAhmed, T. / Andreev, V. / Barrelet, E. et al. | BASE | 1994Evidence is presented using data taken with the H1 detector at HERA for a class of deep inelastic electron-proton scattering (DIS) events ...Schlagwörter: electron p: colliding beams, colliding beams: electron p, electron p: deep inelastic scattering, deep inelastic scattering: electron p -
Hadron production by virtual photons in the quark fragmentation region
Freier ZugriffScarr, J. M. / Chen, C. K. / Drews, G. et al. | BASE | 1977chamber at DESY. Data are presented in terms of the variable z p = p / v in the kinematic region 1.8 < W < 2.8 GeV and 0.3 < Q 2 < 1.4 GeV 2 . The ...Schlagwörter: ELECTRON P: INCLUSIVE REACTION, ELECTRON P --> HADRON ANYTHING -
Spin density matrix elements in exclusive $\omega$ electroproduction on $\mathrm{^1 H}$ and $\mathrm{^2 H}$ targets at 27.5 GeV beam energy
Freier ZugriffAirapetian, Avetik / Akopov, N. / Cisbani, E. et al. | BASE | 2014GeV longitudinally polarized electron or positron beam of HERA. The determination of the virtual-photon longitudinal-to-transverse cross ...Schlagwörter: positron p: exclusive reaction, electron p: exclusive reaction, electron deuteron: exclusive reaction -
Physics potential of the International Axion Observatory (IAXO)
Freier ZugriffArmengaud, E. / Attie, D. / Cogollos, C. et al. | BASE | 2019Schlagwörter: electron -
A Search for lepton-flavor violating decays $\tau$ $\to$ e $\alpha$, $\tau$ $\to$ $\mu$ $\alpha$
Freier ZugriffAlbrecht, H. / Hamacher, T. / Walter, M. et al. | BASE | 1995Schlagwörter: electron positron: colliding beams, colliding beams: electron positron, electron positron: annihilation, annihilation: electron positron -
The three photon final state produced in $e^+ e^-$ collision at 3.6-GeV and at the $\psi'$
Freier ZugriffBraunschweig, W. / Martyn, H.-U. / Gadermann, E. et al. | BASE | 1977Schlagwörter: ELECTRON POSITRON: COLLIDING BEAMS, COLLIDING BEAMS: ELECTRON POSITRON, ELECTRON POSITRON: ANNIHILATION, ANNIHILATION: ELECTRON POSITRON, ELECTRON POSITRON --> ETA(549) PHOTON, ELECTRON POSITRON --> X(2830) PHOTON -
Limits on contact interactions and leptoquarks at HERA
Freier ZugriffAbramowicz, H. / Abt, I. / Brock, I. et al. | BASE | 2019(CI) to set limits on possible high-energy contributions beyond the Standard Model to electron-quark scattering. Measurements of the inclusive ...Schlagwörter: electron quark: scattering -
Measurement of the branching ratios for the decays $J\psi (3.1) \to f\omega$ and $J\psi (3.1) \to B\pi$
Freier ZugriffBurmester, J. / Criegee, L. / Horlitz, G. et al. | BASE | 1977Schlagwörter: ELECTRON POSITRON: ANNIHILATION, ANNIHILATION: ELECTRON POSITRON, ELECTRON POSITRON: COLLIDING BEAMS, COLLIDING BEAMS: ELECTRON POSITRON, ELECTRON POSITRON --> 2PI+ 2PI- PI0 -
Inclusive J$\psi$ production in $e^+ e^-$ annihilation in the energy range from 4.0-GeV to 5.0-GeV
Freier ZugriffBurmester, J. / Criegee, L. / Kahl, T. et al. | BASE | 1977Schlagwörter: ELECTRON POSITRON: ANNIHILATION, ANNIHILATION: ELECTRON POSITRON, ELECTRON POSITRON: INCLUSIVE REACTION, ELECTRON POSITRON: COLLIDING BEAMS, COLLIDING BEAMS: ELECTRON POSITRON, ELECTRON POSITRON --> J/PSI(3100) (N)CHARGED PARTICLE -
Evidence for the Decay $\tau$- $\rightarrow v _\tau \omega \pi^-. $
Freier ZugriffAlbrecht, H. / Binder, U. / Yagil, A. et al. | BASE | 1987)%. The ωπ − system is found to be predominantly in a J P =1 − state. There is no evidence for second-class axial-vector currents. The spectral ...Schlagwörter: ELECTRON POSITRON: COLLIDING BEAMS, COLLIDING BEAMS: ELECTRON POSITRON, ELECTRON POSITRON: ANNIHILATION, ANNIHILATION: ELECTRON POSITRON -
Measurement of D* photoproduction at three different centre-of-mass energies at HERA
Freier ZugriffAbramowicz, H. / Abt, I. / Barakbaev, A. N. et al. | BASE | 2014, $ \sqrt{s} $ , of 318, 251 and 225 GeV. For each data set, D$^{∗±}$ mesons were required to have transverse momentum, p$_{T}^{D}^{ ∗}$ , and ...Schlagwörter: electron p: scattering -
Search for ZZ resonances in the 2$\ell$2$\nu$ final state in proton-proton collisions at 13 TeV
Freier ZugriffSirunyan, Albert M / Tumasyan, Armen / Escalante Del Valle, Alberto et al. | BASE | 2018curvature scale parameter $ \tilde{k}=0.5 $ in the extra dimension, the region m$_{X}$ < 800 GeV is excluded, providing the most stringent limit ...Schlagwörter: p p: colliding beams, p p: scattering, electron: pair production -
Measurement of elastic $\rho^0$ photoproduction at HERA
Freier ZugriffDerrick, M. / Krakauer, D. / Bari, G. et al. | BASE | 1995were used to measure the reaction $\gamma p \rightarrow \rho~0 p$ ($\rho~0 \rightarrow \pi~+ \pi~-$) at photon-proton centre-of-mass energies ...Schlagwörter: electron p: colliding beams, colliding beams: electron p, photon p: interaction, interaction: photon p, elastic scattering: rho(770) p, rho(770) p: elastic scattering -
Performance of 1-m-Long/75-mm Bore Superconducting Prototype Coils for HERA
Freier ZugriffHorlitz, G. / Kaiser, H. / Knust, G. et al. | BASE | 1983temperature between 4.0 and 5.0 K. The field quality of both coils is in general within specifications. There is no current dependence of the higher ...Schlagwörter: ELECTRON P: STORAGE RING
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