portada Search for Tt̄h Production in the H → Bb̅ Decay Channel: Using Deep Learning Techniques with the CMS Experiment (en Inglés)

Search for Tt̄h Production in the H → Bb̅ Decay Channel: Using Deep Learning Techniques with the CMS Experiment (en Inglés)

Formato

Libro Físico

Autor

Marcel Rieger

Editorial

Springer

Idioma

Inglés

N° páginas

217

Encuadernación

Tapa Dura

Dimensiones

23.4x15.6x1.4 cm

Peso

0.50 kg.

ISBN13

9783030653798

Categorías

Probabilidad y estadística
Física nuclear/estructura nuclear
Inteligencia artificial

Search for Tt̄h Production in the H → Bb̅ Decay Channel: Using Deep Learning Techniques with the CMS Experiment (en Inglés)

Marcel Rieger (Autor) · Springer · Tapa Dura

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Reseña del libro "Search for Tt̄h Production in the H → Bb̅ Decay Channel: Using Deep Learning Techniques with the CMS Experiment (en Inglés)"

In 1964, a mechanism explaining the origin of particle masses was proposed by Robert Brout, François Englert, and Peter W. Higgs. 48 years later, in 2012, the so-called Higgs boson was discovered in proton-proton collisions recorded by experiments at the LHC. Since then, its ability to interact with quarks remained experimentally unconfirmed. This book presents a search for Higgs bosons produced in association with top quarks tt̄H in data recorded with the CMS detector in 2016. It focuses on Higgs boson decays into bottom quarks H → bb̅ and top quark pair decays involving at least one lepton. In this analysis, a multiclass classification approach using deep learning techniques was applied for the first time. In light of the dominant background contribution from tt̄ production, the developed method proved to achieve superior sensitivity with respect to existing techniques. In combination with searches in different decay channels, the presented work contributed to the first observations of tt̄H production and H → bb̅ decays.