Non-zero temperature study of spin 1/2 charmed baryons using lattice gauge theory
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866929282810380288 |
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| author | Aarts, Gert Allton, Chris Anwar, M. Naeem Bignell, Ryan Burns, Timothy J. Jäger, Benjamin Skullerud, Jon-Ivar |
| author_facet | Aarts, Gert Allton, Chris Anwar, M. Naeem Bignell, Ryan Burns, Timothy J. Jäger, Benjamin Skullerud, Jon-Ivar |
| contents | We study the behaviour of spin $1/2$ charmed baryons as the temperature increases. We make use of anisotropic lattice QCD simulations with $N_f = 2 + 1$ dynamical flavours. After determining the positive and negative parity ground state masses at the lowest temperature, we investigate the effect of rising temperature using ratios of thermal lattice correlators with both so-called reconstructed correlators and with simple model correlators. This avoids difficulties associated with non-zero temperature fitting or spectral reconstruction. We find that temperature effects are prominent throughout the hadronic phase for all negative parity channels considered and for some positive parity channels. Subsequently and where possible, we determine the masses of the ground states as a function of temperature. Finally we consider the effect of chiral symmetry restoration and extract an estimate of the pseudocritical temperature from singly charmed baryonic correlators. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_12207 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Non-zero temperature study of spin 1/2 charmed baryons using lattice gauge theory Aarts, Gert Allton, Chris Anwar, M. Naeem Bignell, Ryan Burns, Timothy J. Jäger, Benjamin Skullerud, Jon-Ivar High Energy Physics - Lattice We study the behaviour of spin $1/2$ charmed baryons as the temperature increases. We make use of anisotropic lattice QCD simulations with $N_f = 2 + 1$ dynamical flavours. After determining the positive and negative parity ground state masses at the lowest temperature, we investigate the effect of rising temperature using ratios of thermal lattice correlators with both so-called reconstructed correlators and with simple model correlators. This avoids difficulties associated with non-zero temperature fitting or spectral reconstruction. We find that temperature effects are prominent throughout the hadronic phase for all negative parity channels considered and for some positive parity channels. Subsequently and where possible, we determine the masses of the ground states as a function of temperature. Finally we consider the effect of chiral symmetry restoration and extract an estimate of the pseudocritical temperature from singly charmed baryonic correlators. |
| title | Non-zero temperature study of spin 1/2 charmed baryons using lattice gauge theory |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2308.12207 |