%0 Journal Article %1 zhao2013mesonexchange %A Zhao, Lu %A Li, Ning %A Zhu, Shi-Lin %A Zou, Bing-Song %D 2013 %K hexaquarks %R 10.1103/PhysRevD.87.054034 %T The meson-exchange model for the $ŁambdaŁambda$ interaction %U http://arxiv.org/abs/1302.1770 %X In the present work, we apply the one-boson-exchange potential (OBEP) model to investigate the possibility of Y(2175) and $\eta(2225)$ as bound states of $ŁambdaŁambda(^3S_1)$ and $ŁambdaŁambda(^1S_0)$ respectively. We consider the effective potential from the pseudoscalar $\eta$-exchange and $\eta^'$-exchange, the scalar $\sigma$-exchange, and the vector $ømega$-exchange and $\phi$-exchange. The $\eta$ and $\eta^'$ meson exchange potential is repulsive force for the state $^1S_0$ and attractive for $^3S_1$. The results depend very sensitively on the cutoff parameter of the $ømega$-exchange ($Łambda_ømega$) and least sensitively on that of the $\phi$-exchange ($Łambda_\phi$). Our result suggests the possible interpretation of Y(2175) and $\eta(2225)$ as the bound states of $ŁambdaŁambda(^3S_1)$ and $ŁambdaŁambda(^1S_0)$ respectively.

@article{zhao2013mesonexchange, abstract = {In the present work, we apply the one-boson-exchange potential (OBEP) model to investigate the possibility of Y(2175) and $\eta(2225)$ as bound states of $\Lambda\bar{\Lambda}(^3S_1)$ and $\Lambda\bar{\Lambda}(^1S_0)$ respectively. We consider the effective potential from the pseudoscalar $\eta$-exchange and $\eta^{'}$-exchange, the scalar $\sigma$-exchange, and the vector $\omega$-exchange and $\phi$-exchange. The $\eta$ and $\eta^{'}$ meson exchange potential is repulsive force for the state $^1S_0$ and attractive for $^3S_1$. The results depend very sensitively on the cutoff parameter of the $\omega$-exchange ($\Lambda_{\omega}$) and least sensitively on that of the $\phi$-exchange ($\Lambda_{\phi}$). Our result suggests the possible interpretation of Y(2175) and $\eta(2225)$ as the bound states of $\Lambda\bar{\Lambda}(^3S_1)$ and $\Lambda\bar{\Lambda}(^1S_0)$ respectively.}, added-at = {2019-06-04T05:43:20.000+0200}, author = {Zhao, Lu and Li, Ning and Zhu, Shi-Lin and Zou, Bing-Song}, biburl = {https://www.bibsonomy.org/bibtex/23640675147f1b794a32c530f648b9a7d/dharnett}, description = {The meson-exchange model for the $\Lambda\bar{\Lambda}$ interaction}, doi = {10.1103/PhysRevD.87.054034}, interhash = {9d41d404e3205782357bd62a762d9b4f}, intrahash = {3640675147f1b794a32c530f648b9a7d}, keywords = {hexaquarks}, note = {cite arxiv:1302.1770}, timestamp = {2019-06-04T05:43:20.000+0200}, title = {The meson-exchange model for the $\Lambda\bar{\Lambda}$ interaction}, url = {http://arxiv.org/abs/1302.1770}, year = 2013 }