English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present the measurement of non-photonic electron production at hightransverse momentum ($p_T > $ 2.5 GeV/$c$) in $p$ + $p$ collisions at$\sqrt{s}$ = 200 GeV using data recorded during 2005 and 2008 by the STARexperiment at the Relativistic Heavy Ion Collider (RHIC). The measuredcross-sections from the two runs are consistent with each other despite a largedifference in photonic background levels due to different detectorconfigurations. We compare the measured non-photonic electron cross-sectionswith previously published RHIC data and pQCD calculations. Using the relativecontributions of B and D mesons to non-photonic electrons, we determine theintegrated cross sections of electrons ($\frac{e^++e^-}{2}$) at 3 GeV/$c < p_T<~$10 GeV/$c$ from bottom and charm meson decays to be ${d\sigma_{(B\toe)+(B\to D \to e)} \over dy_e}|_{y_e=0}$ = 4.0$\pm0.5$({\rmstat.})$\pm1.1$({\rm syst.}) nb and ${d\sigma_{D\to e} \over dy_e}|_{y_e=0}$ =6.2$\pm0.7$({\rm stat.})$\pm1.5$({\rm syst.}) nb, respectively.

High $p_{T}$ non-photonic electron production in $p$+$p$ collisions at $\sqrt{s}$ = 200 GeV