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تعداد نتایج: 244 فیلتر نتایج به سال:
The scaled momentum distributions of charged particles in jets have been measured for dijet photoproduction with the ZEUS detector at HERA using an integrated luminosity of 359 pb. The distributions are compared to predictions based on perturbative QCD carried out in the framework of the modified leading-logarithmic approximation (MLLA) and assuming local parton-hadron duality (LPHD). The unive...
Inclusive dijet and trijet production in deep inelastic ep scattering has been measured for 10 < Q < 100 GeV and low Bjorken x, 10 < xBj < 10 . The data were taken at the HERA ep collider with centre-of-mass energy √ s = 318GeV using the ZEUS detector and correspond to an integrated luminosity of 82 pb. Jets were identified in the hadronic centre-of-mass (HCM) frame using the kT cluster algorit...
Isolated photon production in deep inelastic ep scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 320 pb. Measurements were made in the isolated-photon transverse-energy and pseudorapidity ranges 4 < E T < 15GeV and −0.7 < η < 0.9 for exchanged photon virtualities, Q, in the range 10 < Q < 350GeV and for invariant masses of the hadronic system WX > 5G...
Inclusive φ(1020)-meson production in neutral current deep inelastic ep scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 45 pb. The φ mesons were studied in the range 10 < Q < 100 GeV, where Q is the virtuality of the exchanged photon, and in restricted kinematic regions in the transverse momentum, pT , pseudorapidity, η, and the scaled momentum in t...
In a search for signatures of physics processes beyond the Standard Model, various eeqq vector contact–interaction hypotheses have been tested using the high–Q, deep inelastic neutral–current ep scattering data collected with the ZEUS detector at HERA. The data correspond to an integrated luminosity of 47.7 pb of ep interactions at 300GeV center–of–mass energy. No significant evidence of a cont...
Mean values and differential distributions of event-shape variables have been studied in neutral current deep inelastic scattering using an integrated luminosity of 82.2 pb collected with the ZEUS detector at HERA. The kinematic range is 80 < Q < 20 480GeV and 0.0024 < x < 0.6, where Q is the virtuality of the exchanged boson and x is the Bjorken variable. The data are compared with a model bas...
A search for events containing two or more high-transverse-momentum isolated leptons has been performed in ep collisions with the ZEUS detector at HERA using the full collected data sample, corresponding to an integrated luminosity of 480 pb. The number of observed events has been compared with the prediction from the Standard Model, searching for possible deviations, especially for multilepton...
Acknowledgements: The members of the SMIRA Group were: C. Piersimoni (Ospedali Riuniti, Ancona, Italy); P. Lorenzetti (Ospedale di Aosta, Aosta, Italy); D. Costa (Policlinico di Bari, Bari, Italy); A. Grimaldi (Ospedale Fallacara, Triggiano, Bari, Italy); M. Arosio and A. Goglio (Ospedali Riuniti, Bergamo, Italy); C. Mazza and L. Squintani (Ospedale Maggiore, Bologna, Italy); C. Larcher and E. ...
A search for pentaquarks decaying to Ξπ (Ξπ) and corresponding antiparticles has been performed with the ZEUS detector at HERA. The data sample consists of deep inelastic ep scattering events at centre-of-mass energies of 300 and 318 GeV, and corresponds to 121 pb of integrated luminosity. A clear signal for Ξ(1530) → Ξπ was observed. However, no signal for any new baryonic state was observed a...
Introduction: Bruton tyrosine kinase inhibitors (BTKi) have transformed the therapeutic landscape of mantle cell lymphoma (MCL); however, primary and acquired resistance to these agents remains a challenge. Previous studies suggested that narazaciclib (ON123300), second-generation, orally bioavailable clinical-stage CDK4/6 inhibitor (CDKi), may trigger cycle arrest significant tumor growth inhi...
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