Fernández Vanesa, Corral Gerardo Herrera, Astorga Manuel A Matías, Sáenz Jesús M
Departamento de Física y Matemáticas, Universidad Autónoma de Ciudad Juárez, Ciudad Juarez 32310, Mexico.
Departamento de Física, Center for Research and Advanced Studies, Mexico City 07360, Mexico.
Entropy (Basel). 2025 Jun 26;27(7):681. doi: 10.3390/e27070681.
We propose a new approach to describe hadrons and new forms of quark matter in the MIT bag model. The proposal is an extension that integrates a Tsallis nonextensive statistics description of quarks and gluons and is shown to capture the main features underlying mass spectroscopy. While the traditional bag model successfully accounts for the masses of light hadrons, it has not been widely used to describe exotic quark configurations. We compute the system's internal energy and derive expressions for hadronic masses, showing how they depend on the Tsallis parameter. The model reasonably reproduces known mass spectra of conventional hadrons and naturally extends to exotic states such as tetraquarks and pentaquarks. Additionally, we provide estimates of hadron radii within this framework. Our results suggest that nonextensive statistics provide a meaningful generalization of the bag model, capturing both conventional and exotic features of hadronic matter within a unified formalism.
我们提出了一种在麻省理工学院袋模型中描述强子和新型夸克物质形式的新方法。该提议是一种扩展，它整合了夸克和胶子的Tsallis非广延统计描述，并被证明能够捕捉质谱背后的主要特征。虽然传统袋模型成功地解释了轻强子的质量，但它尚未被广泛用于描述奇异夸克构型。我们计算了系统的内能，并推导了强子质量的表达式，展示了它们如何依赖于Tsallis参数。该模型合理地再现了传统强子的已知质谱，并自然地扩展到诸如四夸克和五夸克等奇异态。此外，我们在此框架内提供了强子半径的估计值。我们的结果表明，非广延统计为袋模型提供了有意义的推广，在统一形式体系中捕捉了强子物质的传统和奇异特征。
