Gauge/gravity duality is used to study the properties of the doubly heavy baryon(QQq)at finite rapidity and temperature in heavy-ion collisions.We investigate the impact of rapidity on string breaking and screening of...Gauge/gravity duality is used to study the properties of the doubly heavy baryon(QQq)at finite rapidity and temperature in heavy-ion collisions.We investigate the impact of rapidity on string breaking and screening of QQq and compare these effects with the results for QQ¯in detail.Computations reveal that the string-breaking distances of QQq and QQ¯are close in the confined state,and the effects of rapidity and temperature on the string breaking are not significant.An interesting result shows that QQq cannot be determined at sufficiently high temperatures and rapidities.However,QQ¯can exist under any conditions as long as the separation distance is sufficiently small.Furthermore,the screening distances of QQq and QQ¯are compared at finite rapidity and temperature.Based on the above analysis,we infer that QQ¯is more stable than QQq at finite rapidity and temperature.展开更多
Using gauge/gravity duality,we study the potential energy and the melting of triply heavy baryon at finite temperature and chemical potential in this paper.First,we calculate the three-quark potential and compare the ...Using gauge/gravity duality,we study the potential energy and the melting of triply heavy baryon at finite temperature and chemical potential in this paper.First,we calculate the three-quark potential and compare the results with quark-antiquark potential.With the increase of temperature and chemical potential,the potential energy will decrease at large distances.It is found that the three-quark potential will have an endpoint at high temperature and/or large chemical potential,which means triply heavy baryons will melt at enough high temperature and/or large chemical potential.We also discuss screening distance which can be extracted from the three-quark potential.At last,we draw the melting diagram of triply heavy baryons in the T-μplane.展开更多
基金Supported by the Natural Science Foundation of Hunan Province,China(2022JJ40344)the Research Foundation of Education Bureau of Hunan Province,China(21B0402)。
文摘Gauge/gravity duality is used to study the properties of the doubly heavy baryon(QQq)at finite rapidity and temperature in heavy-ion collisions.We investigate the impact of rapidity on string breaking and screening of QQq and compare these effects with the results for QQ¯in detail.Computations reveal that the string-breaking distances of QQq and QQ¯are close in the confined state,and the effects of rapidity and temperature on the string breaking are not significant.An interesting result shows that QQq cannot be determined at sufficiently high temperatures and rapidities.However,QQ¯can exist under any conditions as long as the separation distance is sufficiently small.Furthermore,the screening distances of QQq and QQ¯are compared at finite rapidity and temperature.Based on the above analysis,we infer that QQ¯is more stable than QQq at finite rapidity and temperature.
基金Supported by the NSFC(12175100,11975132)the Research Foundation of Education Bureau of Hunan Province,China(21B0402,20C1594)the Natural Science Foundation of Hunan Province of China(2022JJ40344)。
文摘Using gauge/gravity duality,we study the potential energy and the melting of triply heavy baryon at finite temperature and chemical potential in this paper.First,we calculate the three-quark potential and compare the results with quark-antiquark potential.With the increase of temperature and chemical potential,the potential energy will decrease at large distances.It is found that the three-quark potential will have an endpoint at high temperature and/or large chemical potential,which means triply heavy baryons will melt at enough high temperature and/or large chemical potential.We also discuss screening distance which can be extracted from the three-quark potential.At last,we draw the melting diagram of triply heavy baryons in the T-μplane.
