QCD sum rules for positive and negative parity heavy baryons at next-to-leading order in $α_s$-expansion
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| Main Authors: | , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866914753783267328 |
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| author | Nishikawa, Tetsuo Kondo, Yoshihiko Kanada-En'yo, Yoshiko |
| author_facet | Nishikawa, Tetsuo Kondo, Yoshihiko Kanada-En'yo, Yoshiko |
| contents | QCD sum rules for positive and negative parity heavy baryons in the heavy quark limit are formulated. We apply the method to $Λ$ and $Σ$ channels. We include the next-to-leading order corrections in $α_s$-expansion to dimension 0 and 3 terms in the operator product expansion. The corrections lead to the considerable reduction of the predicted masses and significantly improves the stability with respect to the Borel parameter, especially for negative parity states. It is also found that in the heavy quark limit chiral odd condensates do not contribute to the negative parity states. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2404_09006 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | QCD sum rules for positive and negative parity heavy baryons at next-to-leading order in $α_s$-expansion Nishikawa, Tetsuo Kondo, Yoshihiko Kanada-En'yo, Yoshiko High Energy Physics - Phenomenology QCD sum rules for positive and negative parity heavy baryons in the heavy quark limit are formulated. We apply the method to $Λ$ and $Σ$ channels. We include the next-to-leading order corrections in $α_s$-expansion to dimension 0 and 3 terms in the operator product expansion. The corrections lead to the considerable reduction of the predicted masses and significantly improves the stability with respect to the Borel parameter, especially for negative parity states. It is also found that in the heavy quark limit chiral odd condensates do not contribute to the negative parity states. |
| title | QCD sum rules for positive and negative parity heavy baryons at next-to-leading order in $α_s$-expansion |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2404.09006 |