On the pair correlations of neutral K, D, B and B_S mesons with close momenta produced in inclusive multiparticle processes

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• 作者：Valery V. Lyuboshitz¹ ; ^{Valery.Lyuboshitz@jinr.ru" class="auth_mail" title="E-mail the corresponding author} ; Vladimir L. Lyuboshitz
• 关键词：strangeness ; neutral kaons ; two-kaon density matrix ; double inclusive cross-sections ; correlation functions ; Bose statistics ; final-state interaction ; neutral heavy mesons
• 刊名：Nuclear and Particle Physics Proceedings
• 出版年：2016
• 出版时间：April-June 2016
• 年：2016
• 卷：273-275
• 期：Complete
• 页码：2593-2595
• 全文大小：220 K

文摘

The phenomenological structure of inclusive cross-sections of the production of two neutral K   mesons in collisions of hadrons and nuclei is investigated taking into account the strangeness conservation in strong and electromagnetic interactions. Relations describing the dependenceof the correlations of two short-lived and two long-lived neutral kaons $K_S^{\circ }{K}_S^{\circ },K_L^{\circ }{K}_L^{\circ }$ and the correlations of “mixed” pairs $K_S^{\circ }{K}_L^{\circ }$ at small relative momenta upon the space-time parameters of the generation region of K^∘$K^{\circ }$ and ${\overline{K}}^{\circ }$ mesons have been obtained. It is shown that under the strangeness conservation the correlation functions of the pairs $K_S^{\circ }{K}_S^{\circ }$ and $K_L^{\circ }{K}_L^{\circ }$, produced in the same inclusive process, coincide, and the difference between the correlation functions of the pairs $K_S^{\circ }{K}_S^{\circ }$ and $K_S^{\circ }{K}_L^{\circ }$ is conditioned exclusively by the production of the pairs of non-identical neutral kaons $K^{\circ }{\overline{K}}^{\circ }$. Analogous correlations for the pairs of neutral heavy mesons D^∘,B^∘$D^{\circ },B^{\circ }$ and $B_S^{\circ }$, generated in multiple processes with the charm (beauty) conservation, are analyzed, and differences from the case of neutral K mesons are discussed.