Search for Baryon Number Violation in Top Quark Production and Decay Using Proton-Proton Collisions at Formula Presented

CMS Collaboration

doi:10.1103/PhysRevLett.132.241802

Search for Baryon Number Violation in Top Quark Production and Decay Using Proton-Proton Collisions at Formula Presented

CMS Collaboration

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Resumen

A search is presented for baryon number violating interactions in top quark production and decay. The analysis uses data from proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the CMS detector at the LHC with an integrated luminosity of Formula Presented. Candidate events are selected by requiring two oppositely charged leptons (electrons or muons) and exactly one jet identified as originating from a bottom quark. Multivariate discriminants are used to separate the signal from the background. No significant deviation from the standard model prediction is observed. Upper limits are placed on the strength of baryon number violating couplings. For the first time the production of single top quarks via baryon number violating interactions is studied. This allows the search to set the most stringent constraints to date on the branching fraction of the top quark decay to a lepton, an up-type quark (Formula Presented or Formula Presented), and a down-type quark (Formula Presented, Formula Presented, or Formula Presented). The results improve the previous bounds by 3 to 6 orders of magnitude based on the fermion flavor combination of the baryon number violating interactions.

Idioma original	Inglés
Número de artículo	241802
Publicación	Physical Review Letters
Volumen	132
N.º	24
DOI	https://doi.org/10.1103/PhysRevLett.132.241802
Estado	Publicada - 14 jun. 2024
Publicado de forma externa	Sí

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@article{cf7502e508cd441b8371450fc7fb9772,

title = "Search for Baryon Number Violation in Top Quark Production and Decay Using Proton-Proton Collisions at Formula Presented",

abstract = "A search is presented for baryon number violating interactions in top quark production and decay. The analysis uses data from proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the CMS detector at the LHC with an integrated luminosity of Formula Presented. Candidate events are selected by requiring two oppositely charged leptons (electrons or muons) and exactly one jet identified as originating from a bottom quark. Multivariate discriminants are used to separate the signal from the background. No significant deviation from the standard model prediction is observed. Upper limits are placed on the strength of baryon number violating couplings. For the first time the production of single top quarks via baryon number violating interactions is studied. This allows the search to set the most stringent constraints to date on the branching fraction of the top quark decay to a lepton, an up-type quark (Formula Presented or Formula Presented), and a down-type quark (Formula Presented, Formula Presented, or Formula Presented). The results improve the previous bounds by 3 to 6 orders of magnitude based on the fermion flavor combination of the baryon number violating interactions.",

author = "\{CMS Collaboration\} and A. Hayrapetyan and A. Tumasyan and W. Adam and Andrejkovic, \{J. W.\} and T. Bergauer and S. Chatterjee and K. Damanakis and M. Dragicevic and Hussain, \{P. S.\} and M. Jeitler and N. Krammer and A. Li and D. Liko and I. Mikulec and J. Schieck and R. Sch{\"o}fbeck and D. Schwarz and M. Sonawane and S. Templ and W. Waltenberger and Wulz, \{C. E.\} and Darwish, \{M. R.\} and T. Janssen and \{Van Mechelen\}, P. and Bols, \{E. S.\} and J. D{\textquoteright}Hondt and S. Dansana and \{De Moor\}, A. and M. Delcourt and S. Lowette and I. Makarenko and D. M{\"u}ller and S. Tavernier and M. Tytgat and \{Van Onsem\}, \{G. P.\} and \{Van Putte\}, S. and D. Vannerom and B. Clerbaux and Das, \{A. K.\} and \{De Lentdecker\}, G. and H. Evard and L. Favart and P. Gianneios and D. Hohov and J. Jaramillo and A. Khalilzadeh and Khan, \{F. A.\} and K. Lee and M. Mahdavikhorrami and A. Malara",

note = "Publisher Copyright: {\textcopyright} 2024 CERN, for the CMS Collaboration.",

year = "2024",

month = jun,

day = "14",

doi = "10.1103/PhysRevLett.132.241802",

language = "Ingl{\'e}s",

volume = "132",

journal = "Physical Review Letters",

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publisher = "American Physical Society",

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T1 - Search for Baryon Number Violation in Top Quark Production and Decay Using Proton-Proton Collisions at Formula Presented

AU - CMS Collaboration

AU - Hayrapetyan, A.

AU - Tumasyan, A.

AU - Adam, W.

AU - Andrejkovic, J. W.

AU - Bergauer, T.

AU - Chatterjee, S.

AU - Damanakis, K.

AU - Dragicevic, M.

AU - Hussain, P. S.

AU - Jeitler, M.

AU - Krammer, N.

AU - Li, A.

AU - Liko, D.

AU - Mikulec, I.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Schwarz, D.

AU - Sonawane, M.

AU - Templ, S.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Darwish, M. R.

AU - Janssen, T.

AU - Van Mechelen, P.

AU - Bols, E. S.

AU - D’Hondt, J.

AU - Dansana, S.

AU - De Moor, A.

AU - Delcourt, M.

AU - Lowette, S.

AU - Makarenko, I.

AU - Müller, D.

AU - Tavernier, S.

AU - Tytgat, M.

AU - Van Onsem, G. P.

AU - Van Putte, S.

AU - Vannerom, D.

AU - Clerbaux, B.

AU - Das, A. K.

AU - De Lentdecker, G.

AU - Evard, H.

AU - Favart, L.

AU - Gianneios, P.

AU - Hohov, D.

AU - Jaramillo, J.

AU - Khalilzadeh, A.

AU - Khan, F. A.

AU - Lee, K.

AU - Mahdavikhorrami, M.

AU - Malara, A.

PY - 2024/6/14

Y1 - 2024/6/14

N2 - A search is presented for baryon number violating interactions in top quark production and decay. The analysis uses data from proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the CMS detector at the LHC with an integrated luminosity of Formula Presented. Candidate events are selected by requiring two oppositely charged leptons (electrons or muons) and exactly one jet identified as originating from a bottom quark. Multivariate discriminants are used to separate the signal from the background. No significant deviation from the standard model prediction is observed. Upper limits are placed on the strength of baryon number violating couplings. For the first time the production of single top quarks via baryon number violating interactions is studied. This allows the search to set the most stringent constraints to date on the branching fraction of the top quark decay to a lepton, an up-type quark (Formula Presented or Formula Presented), and a down-type quark (Formula Presented, Formula Presented, or Formula Presented). The results improve the previous bounds by 3 to 6 orders of magnitude based on the fermion flavor combination of the baryon number violating interactions.

AB - A search is presented for baryon number violating interactions in top quark production and decay. The analysis uses data from proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the CMS detector at the LHC with an integrated luminosity of Formula Presented. Candidate events are selected by requiring two oppositely charged leptons (electrons or muons) and exactly one jet identified as originating from a bottom quark. Multivariate discriminants are used to separate the signal from the background. No significant deviation from the standard model prediction is observed. Upper limits are placed on the strength of baryon number violating couplings. For the first time the production of single top quarks via baryon number violating interactions is studied. This allows the search to set the most stringent constraints to date on the branching fraction of the top quark decay to a lepton, an up-type quark (Formula Presented or Formula Presented), and a down-type quark (Formula Presented, Formula Presented, or Formula Presented). The results improve the previous bounds by 3 to 6 orders of magnitude based on the fermion flavor combination of the baryon number violating interactions.

UR - https://www.scopus.com/pages/publications/85196056143

U2 - 10.1103/PhysRevLett.132.241802

DO - 10.1103/PhysRevLett.132.241802

M3 - Artículo

AN - SCOPUS:85196056143

SN - 0031-9007

VL - 132

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

M1 - 241802

ER -

Search for Baryon Number Violation in Top Quark Production and Decay Using Proton-Proton Collisions at Formula Presented

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