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Inclusive Decays of Heavy Quark Hybrids
by Abhishek Mohapatra
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Submission summary
| Authors (as registered SciPost users): | Abhishek Mohapatra |
| Submission information | |
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| Preprint Link: | scipost_202201_00032v1 (pdf) |
| Date accepted: | 2022-05-06 |
| Date submitted: | 2022-01-24 16:52 |
| Submitted by: | Mohapatra, Abhishek |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | XXXIII International Workshop on High Energy Physics (IWHEP2021) |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approach: | Theoretical |
Abstract
In order to understand the nature of the XYZ particles, theoretical predictions of the various XYZ decay modes are essential. In this work, we focus on the semi-inclusive decays of heavy quarkonium hybrids into traditional quarkonium in the EFT framework. We begin with weakly coupled potential NRQCD effective theory that describes systems with two heavy quarks and incorporates multipole expansions and use it to develop a Born-Oppenheimer effective theory (BOEFT) to describe the hybrids and compute the semi-inclusive decay rates. We compute both the spin-conserving and spin-flipping decay rates and find that our numerical results of the decay rates are different from the previous studies. We also develop a systematic framework in which the theoretical uncertainty can be systematically improved.
Published as SciPost Phys. Proc. 6, 008 (2022)
Reports on this Submission
Report #1 by Anonymous (Referee 1) on 2022-3-30 (Invited Report)
- Cite as: Anonymous, Report on arXiv:scipost_202201_00032v1, delivered 2022-03-30, doi: 10.21468/SciPost.Report.4815
Report
Decay rates of heavy hybrid quarkonia to traditional quarkonia were calculated using nonrelativistic QCD (involving lattice simulations) and the Born-Oppenheimer effective field theory. Such computations provide a significant step in accumulation of understanding of the structure of hybrid quarkonia.
It should be emphasized that previous results on this problem have either been corrected or significantly improved. The approach employed by the author makes it possible to systematically reduce the uncertainties.