Measurement of non-photonic electrons in p+p collisions at snn1/2 = 200 GeV with reduced detector material in STAR

机译：在SNN1 / 2 = 200 GEV下的P + P碰撞中的非光子电子测量，具有透明的探测器材料

获取原文

页面导航

摘要
著录项
相似文献
相关主题

摘要

In this paper, we present our analysis of mid-rapidity non-photonic electron (NPE) production at pT > 0.2 GeV/c in p+p collisions at snn1/2 = 200 GeV. The data set is ~78 M TOF-triggered events taken from RHIC year 2008 runs. Through the measurement of the e/π ratio, we find that the photonic background electrons from y conversions are reduced by about a factor of 10 compared with those in STAR previous runs due to the absence of inner tracking detectors and the supporting materials. The dramatic increase of the signal-to-background ratio will allow us to improve the precision on extracting the charm cross section via its semi-leptonic decays to electrons.

机译：在本文中，我们在SNN1 / 2 = 200 GEV的PT> 0.2 GEV / C处于PT> 0.2 GEV / C的中快速度非光子电子（NPE）生产的分析。数据集是〜78米TOF触发的事件，从2008年的RAC年运行。通过e /π比的测量，我们发现，由于没有内部跟踪检测器和支撑材料，从Y转化的光子背景电子与恒星之前的延伸相比减小了大约10的因子。信号到背景比的显着增加将使我们通过其半卵蛋白衰变提高提取魅力横截面的精度。

著录项

来源
《International conference on strangeness in quark matter》|2009年||共6页
会议地点
作者

展开▼
作者单位

展开▼
会议组织
原文格式 PDF
正文语种
中图分类原子核物理学、高能物理学;
关键词

相似文献

外文文献
中文文献
专利

1. Measurement of non-photonic electrons in p+p collisions at = 200 GeV with reduced detector material in STAR [J] . F Jin, the STAR Collaboration Journal of Physics, G. Nuclear and Particle Physics: An Institute of Physics Journal . 2009,第6期

机译：在STAR探测器材料减少的情况下，在200 GeV的p + p碰撞中测量非光子电子
2. Measurements of non-photonic electron production and azimuthal anisotropy in √s_(NN)=39,62.4 and 200GeV Au + Au Collisions from STAR at RHIC [J] . Mustafa M. Nuclear Physics, A: Journal Devoted to the Experimental Study of the Fundamental Constituents of Matter and Their Actions . 2013,第Null期

机译：RHIC上STAR的√s_（NN）= 39,62.4和200GeV Au + Au碰撞中的非光子电子产生和方位各向异性的测量
3. Measurements of $J / ψ$ Production and Polarization in p+p and p+Au Collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV with the STAR Experiment [J] . Zhen Liu International Journal of Modern Physics: Conference Series . 2018,第3期

机译：<！-$ {MathJax：TeX-AMS-MML_HTMLorMML}-> <数学altimg =“ eq-00001.gif” display =“ inline”溢出=“ scroll”> J < mo class =“ MathClass-bin” Stretchy =“ false”> / ψ p + p和p + Au碰撞在<！-$ { MathJax：TeX-AMS-MML_HTMLorMML}-> <数学altimg =“ eq-00002.gif” display =“ inline” overflow =“ scroll”> <行> <行> s < / mi> NN = 200 GeV
4. Measurement of non-photonic electrons in p+p collisions at snn1/2 = 200 GeV with reduced detector material in STAR [C] . International conference on strangeness in quark matter . 2009

机译：在SNN1 / 2 = 200 GEV下的P + P碰撞中的非光子电子测量，具有透明的探测器材料
5. Non-Photonic Electron at High Transverse Momentum in Gold+Gold Collisions and Bottom Quark Production in p+p Collisions at square root of S(NN) = 200 GeV. [D] . Xu, Wenqin. 2012

机译：在S（NN）= 200 GeV的平方根下，金+金碰撞中的高横向动量的非光子电子和p + p碰撞中的底夸克产生。
6. Electron efficiency measurements with the ATLAS detector using 2012 LHC proton–proton collision data [O] . M. Aaboud, G. Aad, B. Abbott, -1

机译：使用2012 LHC质子-质子碰撞数据的ATLAS探测器进行电子效率测量
7. Measurement of the Bottom Quark contribution to non-photonic electron production in $p+p$ collisions at $\sqrt{s} $=200 GeV [O] . Aggarwal, M.M., Ahammed, Z., Alakhverdyants, A.V., 2010

机译：在$ \ sqrt {s} $ = 200 GeV的$ p + p $碰撞中测量底夸克对非光子电子产生的贡献

Measurement of non-photonic electrons in p+p collisions at snn1/2 = 200 GeV with reduced detector material in STAR

摘要

著录项

相似文献

相关主题

期刊订阅