We determine the scaling dimensions in the boundary CFT corresponding to the O($\textit{N}$) model in EAdS . The CFT data accessible to the 4-point boundary correlator of fundamental fields are extracted in $\textit{d}$ = 2 and $\textit{d}$ = 4, at a finite coupling, and to the leading nontrivial order in the 1$\textit{/N}$ expansion. We focus on the non-singlet sectors, namely the anti-symmetric and symmetric traceless irreducible representations of the O($\textit{N}$) group, extending the previous results that considered only the singlet sector. Studying the non-singlet sector requires an understanding of the crossed-channel diagram contributions to the $\textit{s}$-channel conformal block decomposition. Building upon an existing computation, we present general formulas in $\textit{d}$ = 2 and $\textit{d}$ = 4 for the contribution of a $\textit{t}$-channel conformal block to the anomalous dimensions of $\textit{s}$-channel double-twist operators, derived for external scalar operators with equal scaling dimensions. Up to some technical details, this eventually leads to the complete picture of 1$\textit{/N}$ corrections to the CFT data in the interacting theory.

Czechia

Jonáš Dujava

Petr Vaško

Finite-coupling spectrum of O($\textit{N}$) model in AdS

<p>A search for the dimuon decay of the Higgs boson is presented based on <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>p</mi><mi>p</mi></math> collision data recorded by ATLAS during Run 3 of the Large Hadron Collider, corresponding to an integrated luminosity of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mn>165</mn><mtext> </mtext><mtext> </mtext><msup><mrow><mi>fb</mi></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></mrow></math> at <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>13.6</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></mrow></math>. To enhance the sensitivity, the results are combined with those from Run 2. An excess of events over the background is observed with a significance of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mn>3.4</mn><mi>σ</mi></math> (<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mn>2.5</mn><mi>σ</mi></math> expected). The best-fit signal strength is <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>μ</mi><mo>=</mo><mn>1.4</mn><mo>±</mo><mn>0.4</mn></mrow></math>. This result provides evidence for the <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>H</mi><mo stretchy="false">→</mo><mi>μ</mi><mi>μ</mi></mrow></math> decay with ATLAS data and offers a direct probe of the Higgs-boson Yukawa coupling to second-generation fermions.</p>

France

G. Aad

Norway

E. Aakvaag

United States

B. Abbott

United Arab Emirates

S. Abdelhameed

Germany

K. Abeling

N.J. Abicht

S.H. Abidi

M. Aboelela

Morocco

A. Aboulhorma

Israel

H. Abramowicz

Y. Abulaiti

Italy

B.S. Acharya

A. Ackermann

C. Adam Bourdarios

Poland

L. Adamczyk

S.V. Addepalli

United Kingdom

M.J. Addison

J. Adelman

Türkiye

A. Adiguzel

T. Adye

A.A. Affolder

Y. Afik

Spain

M.N. Agaras

A. Aggarwal

Romania

C. Agheorghiesei

F. Ahmadov

S. Ahuja

China

X. Ai

G. Aielli

A. Aikot

M. Ait Tamlihat

B. Aitbenchikh

M. Akbiyik

Sweden

T.P.A. Åkesson

A.V. Akimov

Japan

D. Akiyama

N.N. Akolkar

S. Aktas

G.L. Alberghi

Canada

J. Albert

Switzerland

U. Alberti

P. Albicocco

G.L. Albouy

S. Alderweireldt

Z.L. Alegria

CERN

M. Aleksa

I.N. Aleksandrov

C. Alexa

Greece

T. Alexopoulos

F. Alfonsi

M. Algren

M. Alhroob

B. Ali

H.M.J. Ali

S. Ali

S.W. Alibocus

South Africa

M. Aliev

G. Alimonti

W. Alkakhi

C. Allaire

B.M.M. Allbrooke

J.S. Allen

J.F. Allen

P.P. Allport

A. Aloisio

Argentina

F. Alonso

C. Alpigiani

Z.M.K. Alsolami

A. Alvarez Fernandez

M. Alves Cardoso

M.G. Alviggi

M. Aly

Brazil

Y. Amaral Coutinho

A. Ambler

C. Amelung

M. Amerl

C.G. Ames

T. Amezza

D. Amidei

B. Amini

K. Amirie

A. Amirkhanov

Portugal

S.P. Amor Dos Santos

K.R. Amos

D. Amperiadou

S. An

C. Anastopoulos

T. Andeen

J.K. Anders

A.C. Anderson

A. Andreazza

S. Angelidakis

A. Angerami

A.V. Anisenkov

A. Annovi

C. Antel

E. Antipov

M. Antonelli

F. Anulli

M. Aoki

Evidence for the Dimuon Decay of the Higgs Boson in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>p</mi><mi>p</mi></math> Collisions with the ATLAS Detector

<p>This article reports on a search for dijet resonances using <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mn>132</mn><mtext> </mtext><mtext> </mtext><msup><mi>fb</mi><mrow><mo>−</mo><mn>1</mn></mrow></msup></math> of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>p</mi><mi>p</mi></math> collision data recorded at <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msqrt><mi>s</mi></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></math> by the ATLAS detector at the Large Hadron Collider. The search is performed solely on jets reconstructed within the ATLAS trigger to overcome bandwidth limitations imposed on conventional single-jet triggers, which would otherwise reject data from decays of sub-TeV dijet resonances. Collision events with two jets satisfying transverse momentum thresholds of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi>p</mi><mi mathvariant="normal">T</mi></msub><mo>≥</mo><mn>85</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> and jet rapidity separation of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mo stretchy="false">|</mo><msup><mi>y</mi><mo>*</mo></msup><mo stretchy="false">|</mo><mo>&lt;</mo><mn>0.6</mn></math> are analysed for dijet resonances with invariant masses from 375 to <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mn>1800</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></mrow></math>. A data-driven background estimate is used to model the dijet mass distribution from multijet processes. No significant excess above the expected background is observed. Upper limits are set at 95% confidence level on coupling values for a benchmark leptophobic axial-vector <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msup><mi>Z</mi><mo>′</mo></msup></math> model and on the production cross section for a new resonance contributing a Gaussian-distributed line-shape to the dijet mass distribution.</p>

D.R. Allen

Search for electroweak-scale dijet resonances using trigger-level analysis with the ATLAS detector in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mn>132</mn><mtext> </mtext><mtext> </mtext><msup><mi>fb</mi><mrow><mo>−</mo><mn>1</mn></mrow></msup></math> of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>p</mi><mi>p</mi></math> collisions at <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msqrt><mi>s</mi></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></math>

N. Abicht

S. Abidi

H. Abreu

Chile

A. Abusleme Hoffman

B. Acharya

L. Adamek

S. Addepalli

M. Addison

A. Affolder

M. Agaras

J. Agarwala

A. Ahmad

Azerbaijan

W. Ahmed

I. Aizenberg

T. Åkesson

A. Akimov

N. Akolkar

K. Khoury

G. Alberghi

G. Albouy

I. Aleksandrov

Netherlands

A. Alfonsi

H. Ali

Taiwan

S. Alibocus

B. Allbrooke

J. Allen

C. Allendes Flores

P. Allport

M. Alvarez Estevez

M. Alviggi

C. Ames

S. Amor Dos Santos

K. Amos

V. Ananiev

J. Anders

S. Andrean

A. Anisenkov

M. Anthony

D. Antrim

T. Aoki

J. Aparisi Pozo

M. Aparo

Erratum: Measurement of the total and differential cross-sections of $$ t\overline{t}W $$ production in $\textit{pp}$ collisions at $$ \sqrt{s}=13 $$ TeV with the ATLAS detector

A search for pair-production of vector-like leptons is presented, considering their decays into a third-generation Standard Model (SM) quark and a vector leptoquark ( $$U_1$$ ) as predicted by an ultraviolet-complete extension of the SM, referred to as the ‘4321’ model. Given the assumed decay of $$U_1$$ into third-generation SM fermions, the final state can contain multiple $$\tau $$ -leptons and $\textit{b}$-quarks. This search is based on a dataset of $\textit{pp}$ collisions at $$\sqrt{s}=13$$ TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of up to $$140~\textrm{fb}^{-1} $$ . No significant excess above the SM background prediction is observed, and 95% confidence level limits on the cross-section times branching ratio are derived as a function of the vector-like lepton mass. A lower observed (expected) limit of 910 GeV (970 GeV) is set on the vector-like lepton mass. Additionally, the results are interpreted for a supersymmetric model with an $\textit{R}$-parity violating coupling to the third-generation quarks and leptons. Lower observed (expected) limits are obtained on the higgsino mass at 880 GeV (940 GeV) and on the wino mass at 1170 GeV (1170 GeV).

C. Bourdarios

M. Tamlihat

Z. Alegria

Saudi Arabia

Z. Alsolami

A. Fernandez

M. Cardoso

Y. Coutinho

S. Santos

A. Anderson

Search for electroweak production of vector-like leptons in $$\tau $$ -lepton and $\textit{b}$-jet final states in $\textit{pp}$ collisions at $$\sqrt{s}$$ = 13 TeV with the ATLAS detector

Erratum: Search for neutral long-lived particles that decay into displaced jets in the ATLAS calorimeter in association with leptons or jets using pp collisions at $$ \sqrt{\textrm{s}}=13 $$ TeV

A calibration of the ATLAS flavour-tagging algorithms using a new calibration procedure based on optimal transportation maps is presented. Simultaneous, continuous corrections to the $\textit{b}$-jet, $\textit{c}$-jet, and light-flavour jet classification probabilities from jet-tagging algorithms in simulation are derived for $\textit{b}$-jets using $$t\bar{t} \rightarrow e\mu \nu \nu bb$$ data. After application of the derived calibration maps, closure between simulation and observation is achieved for jet flavour observables used in ATLAS analyses of Large Hadron Collider (LHC) Run 2 proton-proton collision data. This continuous calibration opens up new possibilities for the future use of jet flavour information in LHC analyses and also serves as a guide for deriving high-dimensional corrections to simulation via transportation maps, an important development for a broad range of inference tasks.

K. Al Khoury

A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps

Measurements of jet substructure in Pb+Pb collisions provide key insights into the mechanism of jet quenching in the hot and dense QCD medium created in these collisions.This Letter presents a measurement of the suppression of large-radius jets with a radius parameter of <math altimg='si2.svg'><mrow><mi>R</mi><mo linebreak='goodbreak'>=</mo><mn>1.0</mn></mrow></math> and its dependence on the jet substructure. The measurement uses 1.72 nb <math altimg='si10.svg'><msup><mrow /><mrow><mo>&#8722;</mo><mn>1</mn></mrow></msup></math> of Pb+Pb data and 255 pb <math altimg='si10.svg'><msup><mrow /><mrow><mo>&#8722;</mo><mn>1</mn></mrow></msup></math> of <italic>pp</italic> data, both at <math altimg='si11.svg'><mrow><msqrt><msub><mi>s</mi><msub><mrow /><mtext>NN</mtext></msub></msub></msqrt><mo linebreak='goodbreak'>=</mo><mn>5.02</mn></mrow></math> TeV, recorded with the ATLAS detector at the Large Hadron Collider. Large-radius jets are reconstructed by reclustering <math altimg='si5.svg'><mrow><mi>R</mi><mo linebreak='goodbreak'>=</mo><mn>0.2</mn></mrow></math> calorimetric jets and are measured for transverse momentum above 200 GeV. Jet substructure is evaluated using charged-particle tracks, and the overall level of jet suppression is quantified using the jet nuclear modification factor ( <italic>R</italic> <inf>AA</inf>). The jet <italic>R</italic> <inf>AA</inf> is measured as a function of jet <italic>p</italic> <inf>T</inf>, the charged <italic>k<inf>t</inf></italic> splitting scale ( <math altimg='si1.svg'><msqrt><msub><mi>d</mi><mn>12</mn></msub></msqrt></math>), and the angular separation (&#916; <italic>R</italic> <inf>12</inf>) of two leading sub-jets. The jet <italic>R</italic> <inf>AA</inf> gradually decreases with increasing <math altimg='si1.svg'><msqrt><msub><mi>d</mi><mn>12</mn></msub></msqrt></math>, implying significantly stronger suppression of large-radius jets with larger <italic>k<inf>t</inf></italic> splitting scale. The jet <italic>R</italic> <inf>AA</inf> gradually decreases for &#916; <italic>R</italic> <inf>12</inf> in the range <math altimg='si12.svg'><mrow><mn>0.01</mn><mo linebreak='goodbreak'>&#8722;</mo><mn>0.2</mn></mrow></math> and then remains consistent with a constant for &#916; <italic>R</italic> <inf>12</inf>&#8239;&#8819;&#8239;0.2. The observed significant dependence of jet suppression on the jet substructure will provide new insights into its role in the quenching process.

T. P A åkesson

H. M J Ali

B. M M Allbrooke

Measurement of substructure-dependent suppression of large-radius jets with charged particles in Pb+Pb collisions with ATLAS