Open Bottom Production in Au Au Collisions at √<span style="text-decoration: overline;"><em>s</em>_NN</span> = 200 GeV with the STAR Experiment

• Main Author: Shenghui Zhang
• Format: Article
• Language: English
• Published: MDPI AG 2019-04-01
• Series: Proceedings
• Subjects: open bottom production; nuclear modification factors; non-prompt J/ψ; non-prompt D0; electrons from bottom hadron decays; quark-gluon plasma
• Online Access: https://www.mdpi.com/2504-3900/10/1/39

In these proceedings, we present measurements of open bottom hadron production through multiple decay channels in Au + Au collisions at <inline-formula> <math display="inline"> <semantics> <msqrt> <msub> <mi>s</mi> <msub> <mrow></mrow> <mi>NN</mi> </msub> </msub> </msqrt> </semantics> </math> </inline-formula> = 200 GeV by the STAR experiment. Specifically, measurements of nuclear modification factors for electrons, <inline-formula> <math display="inline"> <semantics> <mrow> <mi>J</mi> <mo>/</mo> <mi>ψ</mi> </mrow> </semantics> </math> </inline-formula>, and <inline-formula> <math display="inline"> <semantics> <msup> <mi>D</mi> <mn>0</mn> </msup> </semantics> </math> </inline-formula> from open bottom hadron decays, enabled by the Heavy Flavor Tracker, are shown. A large suppression for non-prompt <inline-formula> <math display="inline"> <semantics> <mrow> <mi>J</mi> <mo>/</mo> <mi>ψ</mi> </mrow> </semantics> </math> </inline-formula> and non-prompt <inline-formula> <math display="inline"> <semantics> <msup> <mi>D</mi> <mn>0</mn> </msup> </semantics> </math> </inline-formula> are observed at high transverse momenta. On the other hand, there seems to be less suppression for electrons from bottom hadron decays than for those from charm hadron decays at ∼<inline-formula> <math display="inline"> <semantics> <mrow> <mn>2</mn> <mi>σ</mi> </mrow> </semantics> </math> </inline-formula> significance level.