نتایج جستجو برای: lambda baryon
تعداد نتایج: 35308 فیلتر نتایج به سال:
The production of $\Lambda$ baryons and ${\rm K}^{0}_{\rm S}$ mesons (${\rm V}^{0}$ particles) was measured in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV pp $\sqrt{s} 7$ with ALICE the LHC. these strange particles is studied separately for associated hard scatterings underlying event to shed light on baryon-to-meson ratio enhancement observed intermediate transverse momentum ($p_{\rm T}$...
We study gravitational baryogenesis in an isotropic and homogeneous universe the framework of general relativity. investigate a new exact solution Einstein’s field equations for FRW metric. Our represents transitioning model which was expanding decelerated mode passes on to accelerated after dominance cosmological constant $$\Lambda$$ . observe that occurs derived universe, baryon-entropy ratio...
Form factors of the weak ${\mathrm{\ensuremath{\Xi}}}_{c}\ensuremath{\rightarrow}\mathrm{\ensuremath{\Xi}}(\mathrm{\ensuremath{\Lambda}})$ transitions are calculated within light cone QCD sum rules. The pollution coming from contribution negative parity ${\mathrm{\ensuremath{\Xi}}}_{c}^{*}$ baryon is eliminated by considering combinations rules corresponding to different Lorentz structures. Hav...
We evaluate the light baryonium spectrum, viz. baryon-antibaryon states, in framework of QCD sum rules. The nonperturbative contributions up to dimension 12 are taken into account. Numerical results indicate that there might exist eight possible i.e. $p\ensuremath{-}\overline{p}$, $\mathrm{\ensuremath{\Lambda}}\ensuremath{-}\overline{\mathrm{\ensuremath{\Lambda}}}$, $\mathrm{\ensuremath{\Sigma}...
We perform a Bayesian model selection analysis for interacting scenarios of dark matter and modified holographic Ricci energy (MHRDE) with linear terms. use combination some the latest cosmological data such as type Ia supernovae, cosmic chronometers, microwave background baryon acoustic oscillations measurements. find strong evidence against all MHRDE studied respect to $\Lambda$CDM when full ...
Observations restrict the parameter space of Holographic Dark Energy (HDE) so that a turning point in Hubble $H(z)$ is inevitable. Concretely, cosmic microwave background (CMB), baryon acoustic oscillations (BAO) and Type Ia supernovae (SNE) data put future, but removing SNE results an observational at positive redshift. From perspective theory, not only does violate Null Condition (NEC), as we...
The strange quark plays a unique role in QCD, reflecting its intermediate mass between the light and heavy quarks. In recent years, remarkable progress has been made spectroscopy of baryons with strangeness. Many new features baryon spectrum have revealed by accurate experimental data novel techniques, as well systematic developments theoretical framework to describe hadron resonances. basic pr...
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