Possible dibaryon production at 
					
	    
	    
	  anda with a Lagrangian approach *

Dong, Yubing; Shen, Peng-Nian 沈彭年

doi:10.1088/1674-1137/ac3567

Chinese Phys. C

2022

DOI: 10.1088/1674-1137/ac3567

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Possible dibaryon production at anda with a Lagrangian approach *

Yubing Dong¹,

Peng-Nian 沈彭年 Shen²

Abstract: In order to confirm the existence of the dibaryon state observed at WASA@COSY, we estimate the cross section for production of the possible dibaryon and anti-dibaryon pair in the energy region of the upcoming experiments at anda. Based on some qualitative properties of … Show more

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An estimate of dibaryon production in the process of at anda facility*

Dong¹,

Shen²

2022

Chinese Phys. C

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Although $d^*(2380)$ was first observed by WASA@COSY, its existence has yet to be further confirmed in different types of processes at other facilities. In this work, the possible production of the single dibaryon state $d^*(2380)$ in the process of $p\bar{p}\to d^*(2380)\bar{p}\bar{n}$ at future experiment of $\bar{\rm{P}}$anda is estimated. Following the method used in our previous study (Chinese Physics C {\bf 46}, 023105) a phenomenological Lagrangian approach is employed to study the single $\ds$ production. Based on the conclusions obtained by the non-relativistic constituent quark model, the cross section of the $p\bar{p}\to d^*(2380)\bar{p}\bar{n}$ reaction via the $\Delta\bar{\Delta}$ intermediate state is estimated, which is in the order of $nb$. It is shown that the dominant contribution comes from the diagram with the $\bar{\Delta}\bar{\Delta}\to \bar{p}\bar{n}$ subprocess. However it is difficult to measure due to large background. On the other hand, although the cross section of the diagram with the $\bar{d^*}\to \bar{p}\bar{n}$ subprocess is small, only about $(3\sim 4)\%$ of the total cross section, the corresponding number of events is still large enough and can be measured at $\bar{\rm{P}}$anda, because the outgoing $\bar{p}$ and $\bar{n}$ come from the same source $\bar{d^*}$.

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An estimate of dibaryon production in the process of at anda facility*

Dong¹,

Shen²

2022

Chinese Phys. C

Self Cite

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Possible dibaryon production at anda with a Lagrangian approach *

Abstract: In order to confirm the existence of the dibaryon state observed at WASA@COSY, we estimate the cross section for production of the possible dibaryon and anti-dibaryon pair in the energy region of the upcoming experiments at anda. Based on some qualitative properties of … Show more

Cited by 1 publication

References 61 publications

An estimate of dibaryon production in the process of at anda facility*

An estimate of dibaryon production in the process of at anda facility*

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