Please use this identifier to cite or link to this item:
http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/6159
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | CMS Collaboration | en_US |
dc.contributor.author | Sirunyan, A. M. | en_US |
dc.contributor.author | DUBE, SOURABH | en_US |
dc.contributor.author | KANSAL, B. | en_US |
dc.contributor.author | PANDEY, S. | en_US |
dc.contributor.author | RANE, A. | en_US |
dc.contributor.author | RASTOGI, A. | en_US |
dc.contributor.author | SHARMA, SEEMA et al. | en_US |
dc.date.accessioned | 2021-08-20T11:41:34Z | |
dc.date.available | 2021-08-20T11:41:34Z | |
dc.date.issued | 2021-08 | en_US |
dc.identifier.citation | Physics Letters B, 819, 136409. | en_US |
dc.identifier.issn | 0370-2693 | en_US |
dc.identifier.issn | 1873-2445 | en_US |
dc.identifier.uri | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/6159 | - |
dc.identifier.uri | https://doi.org/10.1016/j.physletb.2021.136409 | en_US |
dc.description.abstract | A search is performed for the rare decay W-+/--> pi(+/-)gamma in proton-proton collisions at root s = 13 TeV. Data corresponding to an integrated luminosity of 137 fb(-1) were collected during 2016 to 2018 with the CMS detector. This analysis exploits a novel search strategy based on W boson production in top quark pair events. An inclusive search for the W-+/--> pi(+/-)gamma decay is not optimal at the LHC because of the high trigger thresholds. Instead, a trigger selection is exploited in which the W boson originating from one of the top quarks is used to tag the event in a leptonic decay. The W boson emerging from the other top quark is used to search for the W-+/--> pi(+/-)gamma signature. Such decays are characterized by an isolated track pointing to a large energy deposit, and by an isolated photon of large transverse momentum. The presence of b quark jets reduces the background from the hadronization of light-flavor quarks and gluons. The W-+/- -> pi(+/-)gamma decay is not observed. An upper exclusion limit is set to this branching fraction, corresponding to 1.50 x 10(-5) at 95% confidence level, whereas the expected upper exclusion limit is 0.85(-0.29)(+0.52) x 10(-5). | en_US |
dc.language.iso | en | en_US |
dc.publisher | Elsevier B.V. | en_US |
dc.subject | CMS | en_US |
dc.subject | Standard model | en_US |
dc.subject | EWK | en_US |
dc.subject | 2021-AUG-WEEK3 | en_US |
dc.subject | TOC-AUG-2021 | en_US |
dc.subject | 2021 | en_US |
dc.title | Search for the rare decay of the W boson into a pion and a photon in proton-proton collisions at √s = 13 TeV | en_US |
dc.type | Article | en_US |
dc.contributor.department | Dept. of Physics | en_US |
dc.identifier.sourcetitle | Physics Letters B | en_US |
dc.publication.originofpublisher | Foreign | en_US |
Appears in Collections: | JOURNAL ARTICLES |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.