Testing quark mixing in minimal left–right symmetric models with b-tags at the LHC
Motivated by a hint in a CMS search for right-handed W-bosons in eejj final states, we propose an experimental test of quark-mixing matrices in a general left–right symmetric model, based on counting the numbers of b-tags from right-handed W-boson hadronic decays. We find that, with our test, differ...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2014-12-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321314003071 |
| _version_ | 1811222576562700288 |
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| author | Andrew Fowlie Luca Marzola |
| author_facet | Andrew Fowlie Luca Marzola |
| author_sort | Andrew Fowlie |
| collection | DOAJ |
| description | Motivated by a hint in a CMS search for right-handed W-bosons in eejj final states, we propose an experimental test of quark-mixing matrices in a general left–right symmetric model, based on counting the numbers of b-tags from right-handed W-boson hadronic decays. We find that, with our test, differences between left- and right-handed quark-mixing matrices could be detected at the LHC with s=14 TeV. With an integrated luminosity of about 20/fb, our test is sensitive to right-handed quark-mixing angles as small as about 30° and with 3000/fb, our test's sensitivity improves to right-handed mixing angles as small as about 7.5°. Our test's sensitivity might be further enhanced by tuning b-tagging efficiency against purity. |
| first_indexed | 2024-04-12T08:18:15Z |
| format | Article |
| id | doaj.art-f22d3a0ecebf4e3f86e3f487b4c941f2 |
| institution | Directory Open Access Journal |
| issn | 0550-3213 1873-1562 |
| language | English |
| last_indexed | 2024-04-12T08:18:15Z |
| publishDate | 2014-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Physics B |
| spelling | doaj.art-f22d3a0ecebf4e3f86e3f487b4c941f22022-12-22T03:40:43ZengElsevierNuclear Physics B0550-32131873-15622014-12-01889C364510.1016/j.nuclphysb.2014.10.009Testing quark mixing in minimal left–right symmetric models with b-tags at the LHCAndrew Fowlie0Luca Marzola1National Institute of Chemical Physics and Biophysics, Ravala 10, Tallinn 10143, EstoniaLaboratory of Theoretical Physics, Institute of Physics, University of Tartu, Ravila 14c, Tartu 50411, EstoniaMotivated by a hint in a CMS search for right-handed W-bosons in eejj final states, we propose an experimental test of quark-mixing matrices in a general left–right symmetric model, based on counting the numbers of b-tags from right-handed W-boson hadronic decays. We find that, with our test, differences between left- and right-handed quark-mixing matrices could be detected at the LHC with s=14 TeV. With an integrated luminosity of about 20/fb, our test is sensitive to right-handed quark-mixing angles as small as about 30° and with 3000/fb, our test's sensitivity improves to right-handed mixing angles as small as about 7.5°. Our test's sensitivity might be further enhanced by tuning b-tagging efficiency against purity.http://www.sciencedirect.com/science/article/pii/S0550321314003071 |
| spellingShingle | Andrew Fowlie Luca Marzola Testing quark mixing in minimal left–right symmetric models with b-tags at the LHC Nuclear Physics B |
| title | Testing quark mixing in minimal left–right symmetric models with b-tags at the LHC |
| title_full | Testing quark mixing in minimal left–right symmetric models with b-tags at the LHC |
| title_fullStr | Testing quark mixing in minimal left–right symmetric models with b-tags at the LHC |
| title_full_unstemmed | Testing quark mixing in minimal left–right symmetric models with b-tags at the LHC |
| title_short | Testing quark mixing in minimal left–right symmetric models with b-tags at the LHC |
| title_sort | testing quark mixing in minimal left right symmetric models with b tags at the lhc |
| url | http://www.sciencedirect.com/science/article/pii/S0550321314003071 |
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