Egzotik Hadronlar

Abstract

Son yıllarda yapılan yüksek enerji fiziği deneylerinde Standart Model çerçevesinde bilinen parçacık yapıları dışında yeni parçacıklar dedekte edilmiştir. Bu gelişmeler, Standart Model ötesi fizik açısından oldukça önemlidir. İç yapısı nedeniyle egzotik parçacık diye adlandırılan bu parçacıkların hem deneysel, hemde teorik çalışmalara farklı bir yön vereceği düşünülmektedir. Bu parçacıklar bugüne kadar tam olarak açıklanamayan madde-antimadde asimetrisi, evrenin oluşumu, karanlık madde, karanlık enerji, nötron yıldızlarının iç yapısı gibi pekçok konu hakkında ipuçları verebilir. Ayrıca bu parçacıkların keşfi son yıllarda hadron spektroskopisine olan ilgiyi oldukça artırmıştır. Bu çalışmada, bugüne kadar tespit edilen egzotik parçacıkların kütle, kuantum sayıları, bozunma genişlikleri gibi temel özellikleri hakkında bilgi sunulacaktır.

Keywords

• Egzotik parçacık,gluontopu,hibritler,tetrakuark,pentakuark,hegzakuark,molekül yapılar

Exotic Hadrons

Abstract

In recent years, in the high energy physics experiments, new particles have been detected except for known particle structures in the Standard Model framework. These developments are also very important in terms of physics beyond the Standard Model. It is thought that particles in this different structure, which is called exotic particle due to internal structure, will give a different direction to both experimental and theoretical studies. These particles can give clues on the asymmetry of matter-antimatter, the formation of the universe, the dark matter, the dark energy, the inner structure of neutron stars, and so forth. Moreover, the discovery of these particles has widely increased the interest in hadron spectroscopy in recent years. In this work, information on the basic properties of exotic particles, such as mass, quantum numbers, and decay widths, which are detected until now, will be presented.

Keywords

• Exotic particle,glueball,hybrids,tetraquark,pentaquark,hexaquark,molecular structures,baryonium

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