09 بهمن 1401
بهزاد اسلام پناه

بهزاد اسلام پناه

مرتبه علمی: استادیار
نشانی: دانشگاه مازندران
تحصیلات: دکترای تخصصی / اختر فیزیک و کیهان شناسی
تلفن: 01132302695
دانشکده: دانشکده علوم پایه

مشخصات پژوهش

عنوان Structure of magnetized strange quark star in perturbative QCD
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Strang Quark Star, QCD, Einstein Gravity
مجله Physics Letters B
شناسه DOI 10.1016/j.physletb.2022.137032
پژوهشگران جلیل صداقت (نفر اول) ، سید محمد زبرجد (نفر دوم) ، غلامحسین بردبار (نفر سوم) ، بهزاد اسلام پناه (نفر چهارم)

چکیده

We have performed the leading order perturbative calculation to obtain the equation of state (EoS) of the strange quark matter (SQM) at zero temperature under the magnetic field B =1018G. The SQM comprises two massless quark flavors (up and down) and one massive quark flavor (strange). Consequently, we have used the obtained EoS to calculate the maximum gravitational mass and the corresponding radius of the magnetized strange quark star (SQS). We have employed two approaches, including the regular perturbation theory (RPT) and the background perturbation theory (BPT). InRPTthe infrared (IR) freezing effect of the coupling constant has not been accounted for, while this effect has been included inBPT. We have obtained the value of the maximum gravitational mass to be more than three times the solar mass. The validity of isotropic structure calculations for SQS has also been investigated. Our results show that the threshold magnetic field from which an anisotropic approach begins to be significant lies in the interval 2 ×1018G