标题： 非光子电子-强子关联在STAR 显示英文标题

标题： Non-photonic electron-hadron correlations at STAR

摘要： 我们呈现STAR对200 GeV下p+p、Cu+Cu和Au+Au碰撞中非光子电子与带电强子的方位角关联的测量结果。 在p+p碰撞中，从非光子e-h关联中，我们提取了非光子电子中相对B介子半轻子衰变贡献，直至电子$p_t \sim 9$ GeV/$c$。 在产生致密介质的中心Cu+Cu和Au+Au碰撞中，我们发现与触发非光子电子的背向侧的e-h关联相比，PYTHIA模拟的预期发生了变化。 显示英文摘要

摘要： We present STAR's measurements of azimuthal correlations between non-photonic electrons and charged hadrons in p+p, Cu+Cu and Au+Au collisions at 200 GeV. In p+p collisions, from the non-photonic e-h correlation we have extracted the relative B meson semi-leptonic decay contributions to non-photonic electrons up to electron $p_t \sim 9$ GeV/$c$. In central Cu+Cu and Au+Au collisions where a dense medium is created, we find that the e-h correlation on the away side of the trigger non-photonic electron has been modified in comparison with the expectation from PYTHIA simulations.