Single vector-like quark X production in the tW channel at high energy pp colliders
Vector-like quarks (VLQs) are color-triplet spin-1/2 fermions whose left- and right-handed chiral components have the same transformation properties under the weak-isospin SU(2) gauge group. The X vector-like particle with a charge of |Q|=+5/3 exists in the (X,T) doublet or (X,T,B) triplet states. B...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321323001141 |
| _version_ | 1827962566520864768 |
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| author | Liangliang Shang Kai Sun |
| author_facet | Liangliang Shang Kai Sun |
| author_sort | Liangliang Shang |
| collection | DOAJ |
| description | Vector-like quarks (VLQs) are color-triplet spin-1/2 fermions whose left- and right-handed chiral components have the same transformation properties under the weak-isospin SU(2) gauge group. The X vector-like particle with a charge of |Q|=+5/3 exists in the (X,T) doublet or (X,T,B) triplet states. Based on a simplified model, we investigate the prospect of discovering the doublet right-handed X via the single production of X followed by X→tW at the 14 TeV High Luminosity LHC (HL-LHC), 27 TeV High Energy LHC (HE-LHC), and 100 TeV hadron-hadron Future Circular Hadron Collider (FCC-hh). We perform a detailed detector simulation, and find that the excluding and discovering capabilities on the X quark are enhanced obviously with the increase of collision energy. Assuming the system uncertainty is 30% of the number of the background events, the excluding capabilities are given as follows: (1) the HL-LHC can exclude the correlated regions of the mixing constant sinθR∈[0.082,0.2] and the X quark mass mX ∈ [1000 GeV, 1680 GeV] with L=3 ab−1; (2) the HE-LHC can exclude the correlated regions of sinθR∈[0.067,0.2] and mX ∈ [1000 GeV, 2230 GeV] with L=15 ab−1; (3) the FCC-hh can exclude the correlated regions of sinθR∈[0.078,0.2] and mX ∈ [1000 GeV, 2560 GeV] with L=30 ab−1. |
| first_indexed | 2024-04-09T16:44:36Z |
| format | Article |
| id | doaj.art-50037fdf348442b1b08a78dd1a02f57c |
| institution | Directory Open Access Journal |
| issn | 0550-3213 |
| language | English |
| last_indexed | 2024-04-09T16:44:36Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Physics B |
| spelling | doaj.art-50037fdf348442b1b08a78dd1a02f57c2023-04-23T06:05:47ZengElsevierNuclear Physics B0550-32132023-05-01990116185Single vector-like quark X production in the tW channel at high energy pp collidersLiangliang Shang0Kai Sun1Corresponding author.; School of Physics, Henan Normal University, Xinxiang 453007, ChinaSchool of Physics, Henan Normal University, Xinxiang 453007, ChinaVector-like quarks (VLQs) are color-triplet spin-1/2 fermions whose left- and right-handed chiral components have the same transformation properties under the weak-isospin SU(2) gauge group. The X vector-like particle with a charge of |Q|=+5/3 exists in the (X,T) doublet or (X,T,B) triplet states. Based on a simplified model, we investigate the prospect of discovering the doublet right-handed X via the single production of X followed by X→tW at the 14 TeV High Luminosity LHC (HL-LHC), 27 TeV High Energy LHC (HE-LHC), and 100 TeV hadron-hadron Future Circular Hadron Collider (FCC-hh). We perform a detailed detector simulation, and find that the excluding and discovering capabilities on the X quark are enhanced obviously with the increase of collision energy. Assuming the system uncertainty is 30% of the number of the background events, the excluding capabilities are given as follows: (1) the HL-LHC can exclude the correlated regions of the mixing constant sinθR∈[0.082,0.2] and the X quark mass mX ∈ [1000 GeV, 1680 GeV] with L=3 ab−1; (2) the HE-LHC can exclude the correlated regions of sinθR∈[0.067,0.2] and mX ∈ [1000 GeV, 2230 GeV] with L=15 ab−1; (3) the FCC-hh can exclude the correlated regions of sinθR∈[0.078,0.2] and mX ∈ [1000 GeV, 2560 GeV] with L=30 ab−1.http://www.sciencedirect.com/science/article/pii/S0550321323001141 |
| spellingShingle | Liangliang Shang Kai Sun Single vector-like quark X production in the tW channel at high energy pp colliders Nuclear Physics B |
| title | Single vector-like quark X production in the tW channel at high energy pp colliders |
| title_full | Single vector-like quark X production in the tW channel at high energy pp colliders |
| title_fullStr | Single vector-like quark X production in the tW channel at high energy pp colliders |
| title_full_unstemmed | Single vector-like quark X production in the tW channel at high energy pp colliders |
| title_short | Single vector-like quark X production in the tW channel at high energy pp colliders |
| title_sort | single vector like quark x production in the tw channel at high energy pp colliders |
| url | http://www.sciencedirect.com/science/article/pii/S0550321323001141 |
| work_keys_str_mv | AT liangliangshang singlevectorlikequarkxproductioninthetwchannelathighenergyppcolliders AT kaisun singlevectorlikequarkxproductioninthetwchannelathighenergyppcolliders |