论文标题
强烈磁场中的奇怪介子
Strange mesons in strong magnetic fields
论文作者
论文摘要
在有强磁场的情况下，研究了奇怪的介子（$ k $，$ k^*$和$ ϕ $）的质量。这些介子的质量的变化是由于磁场存在下的伪尺度和载体介子的混合而引起的。对于带电的介子，这些质量修改是从最低的兰道能源水平对质量的贡献的补充。在存在磁场的情况下，使用具有组成夸克/反quarks的复合载体的场理论模型研究了衰减宽度，$ ϕ \ rightarrow k \ bar k \ b k \ bar k \ bar k \ bar k \ bar k \ bar k \ bar k \ k^* \ rightarrowkπ$。该模型根据组成夸克领域使用自由的狄拉克·哈密顿（Dirac Hamiltonian），作为列夸克（Quark Antiquark）对的灯夸克（Quark Antiquark Pair）的创建项，并根据组成夸克和anitiquarks来研究衰减过程。在强磁场中对奇怪介子的质量和衰减宽度的研究可能会对在LHC的外围超高能碰撞中产生开放和隐藏的奇怪介子的产生，在那里产生的磁场可能是巨大的。
The masses of the strange mesons ($K$, $K^*$ and $ϕ$) are investigated in the presence of strong magnetic fields. The changes in the masses of these mesons arise from the mixing of the pseusdoscalar and vector mesons in the presence of a magnetic field. For the charged mesons, these mass modifications are in addition to the contributions from the lowest Landau energy levels to their masses. The decay widths, $ϕ\rightarrow K\bar K$ and $K^* \rightarrow Kπ$, in the presence of the magnetic field are studied using a field theoretic model of composite hadrons with constituent quarks/antiquarks. The model uses the free Dirac Hamiltonian in terms of the constituent quark fields as the light quark antiquark pair creation term and explicit constructions for the meson states in terms of the constituent quarks and anitiquarks to study the decay processes. The study of the masses and decay widths of the strange mesons in strong magnetic fields can have observable consequences on the production of the open and hidden strange mesons in the peripheral ultra high energy collisions at LHC, where the created magnetic field can be huge.
