Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Eleni, Vryonidou"'
Autor:
Eugenia Celada, Tommaso Giani, Jaco ter Hoeve, Luca Mantani, Juan Rojo, Alejo N. Rossia, Marion O. A. Thomas, Eleni Vryonidou
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-83 (2024)
Abstract We present SMEFiT3.0, an updated global SMEFT analysis of Higgs, top quark, and diboson production data from the LHC complemented by electroweak precision observables (EWPOs) from LEP and SLD. We consider recent inclusive and differential me
Externí odkaz:
https://doaj.org/article/2cd3bbac920f43e983ec3747066586fe
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-41 (2024)
Abstract We study the quantum properties of top quark pairs in lepton colliders with unpolarised beams, including spin correlations, entanglement, and violation of Bell inequalities. We present analytical results in the SM and in the SMEFT and discus
Externí odkaz:
https://doaj.org/article/4bf77838b39d49ea88e361b9a44fcdf2
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-40 (2024)
Abstract This study explores fully leptonic WZ and WW production at the LHC within the SMEFT framework at NLO in QCD, focusing on both CP-even and CP-odd triple-gauge-coupling dimension-six operators. We investigate the off-shell processes, contrasti
Externí odkaz:
https://doaj.org/article/685bdff92a684bc6a9c9887a79a746ae
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 3, Pp 1-32 (2024)
Abstract The recent observation of entanglement between top and anti-top quarks at the LHC opens the way to interpreting collider data with quantum information tools. In this work we investigate the relevance of quantum observables in searches of new
Externí odkaz:
https://doaj.org/article/e4eb323e24524296a02197bf3c69641f
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-53 (2024)
Abstract The ongoing Effective Field Theory (EFT) program at the LHC and elsewhere is motivated by streamlining the connection between experimental data and UV-complete scenarios of heavy new physics beyond the Standard Model (BSM). This connection i
Externí odkaz:
https://doaj.org/article/4bc3f89e43474788aeaeb2b76dc0d0e3
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 11, Pp 1-47 (2023)
Abstract Precision measurements of diboson production at the LHC is an important probe of the limits of the Standard Model. The gluon-fusion channel of this process offers a connection between the Higgs and top sectors. We study in a systematic way g
Externí odkaz:
https://doaj.org/article/3ee87ca07193464482ea68b097a689a4
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 9, Pp 1-28 (2023)
Abstract We explore the impact of Renormalisation Group (RG) effects in the Standard Model Effective Field Theory (SMEFT) interpretations of LHC measurements. We implement the RG running and mixing for the Wilson coefficients as obtained from the one
Externí odkaz:
https://doaj.org/article/775fd6e6cfc44033b54cf603c88c3b0c
Autor:
Claudio Severi, Eleni Vryonidou
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 1, Pp 1-42 (2023)
Abstract We present the first analysis of top spin polarizations, t t ¯ $$ t\overline{t} $$ spin correlations, and t t ¯ $$ t\overline{t} $$ spin entanglement at the LHC in the context of the Standard Model Effective Field Theory, that goes beyond
Externí odkaz:
https://doaj.org/article/5c1bf70aae824d21b004c37b4e5601cf
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 10, Pp 1-36 (2022)
Abstract We study four top quark production at hadron colliders in the Standard Model Effective Field Theory (SMEFT). We perform an analysis at the tree-level, including all possible QCD- and EW-coupling orders and relevant dimension-six operators. W
Externí odkaz:
https://doaj.org/article/8632429f961448ad855bdb4d032db2e9
Publikováno v:
SciPost Physics Core, Vol 7, Iss 1, p 001 (2024)
Inclusive Higgs boson production at large transverse momentum is induced by different production channels. We focus on the leading production mechanism through gluon fusion, and perform a consistent combination of the state of the art calculations ob
Externí odkaz:
https://doaj.org/article/fc269ce18cc14b9fbf66eb7ba003cba4