在普通和非交换 SM 中通过成对湮灭产生重强子

IF 1.7 4区 物理与天体物理 Q2 PHYSICS, NUCLEAR Nuclear Physics A Pub Date : 2024-02-19 DOI:10.1016/j.nuclphysa.2024.122844
S. Mohammad Moosavi Nejad, Vahid Ekraminasab
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引用次数: 0

摘要

人们已经研究了非交换标准模型(NCSM)中的不同过程,并确定了非交换参数尺度的各种限制。在本研究中,我们首次利用塞伯格-维滕(Seiberg-Witten)映射来研究非交换参数Θμν的二阶,在非交换标准模型中通过成对湮灭产生重强子的过程。我们将利用贝尔和OPAL合作组织关于B介子包容性产生的实验数据,确定非交换性尺度ΛNC的低限。非交换性的影响将同时施加在部分子水平的微分截面(e+e-→qq¯)和q/q¯→B的碎片函数上,从而确定了极限ΛNC>1.10 TeV。利用对湮灭截面的分析结果,我们还将预测未来电子-正电子国际直线对撞机(ILC)中Bc介子的产生率。
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Heavy hadron production through pair annihilation in the ordinary and noncommutative SM

Different processes have been yet studied in the noncommutative standard model (NCSM) and various limits on the scale of noncommutative parameter have been determined. In the present work we, for the first time, investigate the production process of heavy hadrons through pair annihilation in the NCSM using Seiberg-Witten maps to the second-order of noncommutative parameter Θμν. Having experimental data from Belle and OPAL Collaborations for inclusive production of B-mesons we will determine a low limit for the noncommutative scale ΛNC. The effects of noncommutativity will be imposed both on the differential cross section at the parton level (e+eqq¯) and the fragmentation function of q/q¯B so that the limit ΛNC>1.10 TeV is determined. Using analytical result for the pair annihilation cross section we will also predict the production rate of Bc mesons in future electron-positron international linear collider (ILC).

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来源期刊
Nuclear Physics A
Nuclear Physics A 物理-物理:核物理
CiteScore
3.60
自引率
7.10%
发文量
113
审稿时长
61 days
期刊介绍: Nuclear Physics A focuses on the domain of nuclear and hadronic physics and includes the following subsections: Nuclear Structure and Dynamics; Intermediate and High Energy Heavy Ion Physics; Hadronic Physics; Electromagnetic and Weak Interactions; Nuclear Astrophysics. The emphasis is on original research papers. A number of carefully selected and reviewed conference proceedings are published as an integral part of the journal.
期刊最新文献
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