In this Letter, we demonstrate that <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>T</mi></math>-odd and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>T</mi></math>-even correlations, with <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>T</mi></math> representing time reversal, when satisfying specific conditions, result, respectively, in cosine and sine strong phase dependencies of the corresponding <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>C</mi><mi>P</mi></math> violation. Additionally, we identify pairs of these <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>C</mi><mi>P</mi></math> violation observables in hadron decays depend on precisely the same strong phases within the helicity amplitude scheme. This complementarity could reduce the strong phase reliance in the study of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>C</mi><mi>P</mi></math> violation while also mitigating the risk of suppressed <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>C</mi><mi>P</mi></math> violation due to exceptionally small strong phases. Moreover, our proposal holds broad application prospects in further investigating <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>C</mi><mi>P</mi></math> violation in baryon decays, which has recently been discovered in the LHCb experiment.

China

Jian-Peng Wang

Qin Qin

Fu-Sheng Yu

Complementary <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>C</mi><mi>P</mi></math> violation induced by <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>T</mi></math>-odd and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>T</mi></math>-even correlations

Our paper examines effect of the recently developed <math altimg='si1.svg'><mi>f</mi><mo stretchy='false'>(</mo><mtext mathvariant='italic'>Q</mtext><mo>,</mo><mi mathvariant='normal'>T</mi><mo stretchy='false'>)</mo></math> theory on a structure of dense objects containing dense matter distribution. For this purpose, we consider viable solutions to study the interior region of considered compact stars. With the Darmois constraints we evaluate unidentified constants of metric coefficients. Additionally, assume a precise <math altimg='si1.svg'><mi>f</mi><mo stretchy='false'>(</mo><mtext mathvariant='italic'>Q</mtext><mo>,</mo><mi mathvariant='normal'>T</mi><mo stretchy='false'>)</mo></math> theory model to reduce complication of the system and obtain explicit equation of matter contents that further used to investigate various physical parameters in the interior of considered compact objects. The equilibrium state for dense compact stars is determined by the TOV equations. The stability state for the compact stars is determined by the causality method. We finalize that the anisotropic spheres in <math altimg='si1.svg'><mi>f</mi><mo stretchy='false'>(</mo><mtext mathvariant='italic'>Q</mtext><mo>,</mo><mi mathvariant='normal'>T</mi><mo stretchy='false'>)</mo></math> theory background are feasibly stable.

Azerbaijan

M. Zeeshan Gul

Pakistan

M. Sharif

Adeeba Arooj

Faisal Javed

Analysis of physical aspects in the interior of static spherical spacetime admitting Durgapal-IV spacetime in <italic>f</italic>( <italic>Q</italic>,T) theory

For a variety of BPS black holes in string theory, the supersymmetric index has provided a microscopic validation of the Bekenstein-Hawking formula. In the near-BPS limit, a gravitational path integral analysis previously revealed the semiclassical spectrum is modified, having a large extremal degeneracy (consistent with the index) and a mass gap up to a continuum of non-BPS black holes. Presently, we study examples in which these sharp features of the spectrum are altered due to the presence of anomalies in the form of $\textit{ϑ}$-angle terms in the action. These may appear generally, but we focus on near-BPS dyonic AdS black holes in M-theory, dual to 3d $$ \mathcal{N} $$ = 2 SCFTs of Class $\textit{R}$ obtained by twisted compactification of $\textit{N}$ wrapped M5 branes. Due to the Witten effect, the dyonic black holes receive quantum corrections to their charges, and when $\textit{ϑ}$ = $\textit{π}$ one may find a mixed ‘t Hooft anomaly between the U(1) and $\textit{ℤ}$ time reversal symmetries. Using results from $$ \mathcal{N} $$ = 2 JT supergravity, we find these effects result in a spectrum in which both the gap and index are reduced, and may even vanish. Surprisingly, for $\textit{ϑ}$ → $\textit{π}$, neither the Bekenstein-Hawking formula nor the index correctly account for the extremal degeneracies.

United States

Matthew Heydeman

Italy

Chiara Toldo

Mixed ’t Hooft anomalies and the Witten effect for AdS black holes

Both ATLAS and CMS have recently performed the first searches for a heavy new spin-0 resonance decaying into a lighter new spin-0 resonance and a $\textit{Z}$ boson, where the lighter spin-0 resonance subsequently decays into $$ t\overline{t} $$ pairs. These searches are of particular interest to probe Two Higgs doublet model (2HDM) parameter space regions that predict a strong first-order electroweak phase transition. In the absence of CP violation, the investigated decay is possible if the lighter and the heavier spin-0 particles have opposite CP parities. The analysis techniques employed by ATLAS and CMS do not distinguish between the two possible signatures $\textit{A}$ → $\textit{ZH}$ and $\textit{H}$ → $\textit{ZA}$, where $\textit{A}$ and $\textit{H}$ denote CP-odd and CP-even Higgs bosons, respectively, if both signals are predicted to have the same total cross sections. We demonstrate the capability of angular variables that are sensitive to spin correlations of the top quarks to differentiate between $\textit{A}$ → $\textit{ZH}$ and $\textit{H}$ → $\textit{ZA}$ decays, even in scenarios where both signals possess identical total cross sections. Focusing on masses of 600 GeV and 800 GeV as a representative 2HDM benchmark, we find that a distinction between the two possible channels is possible with high significance with the anticipated data from the high-luminosity LHC, if the invariant mass distribution of the $$ t\overline{t} $$ system is further binned in angular variables defined by the direction of flight of the leptons produced in the top-quark decays. Moreover, we find a moderate gain in experimental sensitivity due to the improved background rejection for both signals.

Germany

Francisco Arco

Spain

Thomas Biekötter

Panagiotis Stylianou

Georg Weiglein

Top-quark spin correlations as a tool to distinguish pseudoscalar $\textit{A}$ → $\textit{ZH}$ and scalar $\textit{H}$ → $\textit{ZA}$ signatures in $$ Zt\overline{t} $$ final states at the LHC

We investigate the reflected entropy for bipartite mixed state configurations in a $$ T\overline{T} $$ deformed boundary conformal field theory in 2 dimensions (BCFT ). The bulk dual is described by asymptotically AdS geometries with the cut off surface pushed deeper into the bulk and truncated by an end of the world brane. We obtain the reflected entropy up to a linear order in the radial cut-off for static and time dependent configurations involving an eternal black hole, from the island and defect extremal surface (DES) prescriptions in the context of the deformed AdS/BCFT. We observe agreement of the leading order correction for all cases between the two prescriptions. We also obtain the analogous of the Page curves for the reflected entropy and investigate the modification due to the $$ T\overline{T} $$ deformation.

India

Debarshi Basu

Himanshu Chourasiya

Ankur Dey

Vinayak Raj

Bridging boundaries: $$ T\overline{T} $$ , double holography, and reflected entropy

The decrease of the chiral pseudocritical temperature <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi>T</mi><mrow><mi>p</mi><mi>c</mi></mrow></msub></math> with an applied strong magnetic field has been extensively investigated by various QCD low-energy effective models and lattice QCD at the physical point. We find that this decreasing feature may not hold in the case with a weak magnetic field and still depends on quark masses: when the quark masses get smaller, <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi>T</mi><mrow><mi>p</mi><mi>c</mi></mrow></msub></math> turns to increase with the weak magnetic field. This happens due to the significant electromagnetic scale anomaly contribution in the thermomagnetic medium. We demonstrate this salient feature by employing the Nambu-Jona-Lasinio model with <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mn>2</mn><mo>+</mo><mn>1</mn></mrow></math> quark flavors including the electromagnetic scale anomaly contribution. We observe that at <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mo stretchy="false">(</mo><msub><mrow><mi>m</mi></mrow><mrow><mn>0</mn><mi>c</mi></mrow></msub><mo>,</mo><msub><mrow><mi>m</mi></mrow><mrow><mi>s</mi><mi>c</mi></mrow></msub><mo stretchy="false">)</mo><mo>≃</mo><mo stretchy="false">(</mo><mn>2</mn><mo>,</mo><mn>20</mn><mo stretchy="false">)</mo><mtext> </mtext><mtext> </mtext><mi>MeV</mi></mrow></math> for the isospin symmetric mass for up and down quarks, <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi>m</mi><mn>0</mn></msub></math>, and the strange quark mass, <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi>m</mi><mi>s</mi></msub></math>, <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi>T</mi><mrow><mi>p</mi><mi>c</mi></mrow></msub></math> decreases with the magnetic field if the quark masses exceed the critical values, and increases as the quark masses become smaller. Related cosmological implications, arising when the supercooled electroweak phase transition or dark QCD cosmological phase transition is considered along with a primordial magnetic field, are also briefly addressed.

Yuanyuan Wang

Shinya Matsuzaki

Mamiya Kawaguchi

Japan

Akio Tomiya

Implications of the electromagnetic scale anomaly to the QCD chiral phase transition in the smaller quark mass regime: <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi>T</mi><mrow><mi>p</mi><mi>c</mi></mrow></msub></math> does not drop with <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>e</mi><mi>B</mi></math>

France

G. Aad

B. Abbott

K. Abeling

N. Abicht

S. Abidi

Morocco

A. Aboulhorma

Israel

H. Abramowicz

H. Abreu

Y. Abulaiti

Chile

A. Abusleme Hoffman

United Kingdom

B. Acharya

C. Adam Bourdarios

Poland

L. Adamczyk

Canada

L. Adamek

S. Addepalli

M. Addison

J. Adelman

Türkiye

A. Adiguzel

T. Adye

A. Affolder

Switzerland

Y. Afik

M. Agaras

J. Agarwala

A. Aggarwal

Romania

C. Agheorghiesei

A. Ahmad

F. Ahmadov

W. Ahmed

S. Ahuja

X. Ai

G. Aielli

A. Aikot

M. Ait Tamlihat

B. Aitbenchikh

I. Aizenberg

M. Akbiyik

Sweden

T. Åkesson

A. Akimov

D. Akiyama

N. Akolkar

K. Khoury

G. Alberghi

J. Albert

P. Albicocco

G. Albouy

S. Alderweireldt

M. Aleksa

I. Aleksandrov

C. Alexa

Greece

T. Alexopoulos

F. Alfonsi

M. Algren

M. Alhroob

Czechia

B. Ali

H. Ali

Taiwan

S. Ali

S. Alibocus

M. Aliev

G. Alimonti

W. Alkakhi

C. Allaire

B. Allbrooke

J. Allen

C. Allendes Flores

P. Allport

A. Aloisio

Argentina

F. Alonso

C. Alpigiani

M. Alvarez Estevez

A. Alvarez Fernandez

M. Alves Cardoso

M. Alviggi

M. Aly

Brazil

Y. Amaral Coutinho

A. Ambler

C. Amelung

M. Amerl

C. Ames

D. Amidei

Portugal

S. Amor Dos Santos

K. Amos

Norway

V. Ananiev

C. Anastopoulos

T. Andeen

J. Anders

S. Andrean

A. Andreazza

S. Angelidakis

A. Angerami

A. Anisenkov

A. Annovi

C. Antel

M. Anthony

E. Antipov

M. Antonelli

F. Anulli

M. Aoki

T. Aoki

J. Aparisi Pozo

M. Aparo

Erratum: Measurement of $\textit{t}$-channel production of single top quarks and antiquarks in $\textit{pp}$ collisions at 13 TeV using the full ATLAS Run 2 data sample

We continue analytical study of the meson mass spectrum in the large-<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi>N</mi><mi>c</mi></msub></math> two-dimensional QCD, known as the ’t Hooft model, by addressing the most general case of quarks with unequal masses. Based on our previous work, we develop nonperturbative methods to compute spectral sums and systematically derive large-<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>n</mi></math> WKB expansion of the spectrum. Furthermore, we examine the behavior of these results in various asymptotic regimes, including the chiral, heavy quark, and heavy-light limits, and establish a precise coincidence with known analytical and numerical results obtained through alternative approaches.

Russia

Aleksandr Artemev

Alexey Litvinov

Pavel Meshcheriakov

<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><msub><mi>QCD</mi><mn>2</mn></msub></math> ’t Hooft model: Two-flavor mesons spectrum

The mass of the top quark is measured using top-quark-top-antiquark pair events with high transverse momentum top quarks. The dataset, collected with the ATLAS detector in proton–proton collisions at <math altimg='si2.svg'><msqrt><mrow><mi>s</mi></mrow></msqrt><mo linebreak='goodbreak' linebreakstyle='after'>=</mo><mn>13</mn></math> TeV delivered by the Large Hadron Collider, corresponds to an integrated luminosity of 140 fb &#8722;1. The analysis targets events in the lepton-plus-jets decay channel, with an electron or muon from a semi-leptonically decaying top quark and a hadronically decaying top quark that is sufficiently energetic to be reconstructed as a single large-radius jet. The mean of the invariant mass of the reconstructed large-radius jet provides the sensitivity to the top quark mass and is simultaneously fitted with two additional observables to reduce the impact of the systematic uncertainties. The top quark mass is measured to be <math altimg='si3.svg'><msub><mrow><mi>m</mi></mrow><mrow><mi>t</mi></mrow></msub><mo linebreak='goodbreak' linebreakstyle='after'>=</mo><mn>172.95</mn><mo>&#177;</mo><mn>0.53</mn></math> GeV, which is the most precise ATLAS measurement from a single channel.

E. Aakvaag

United Arab Emirates

S. Abdelhameed

N.J. Abicht

S.H. Abidi

M. Aboelela

B.S. Acharya

A. Ackermann

S.V. Addepalli

M.J. Addison

A.A. Affolder

M.N. Agaras

T.P.A. Åkesson

A.V. Akimov

N.N. Akolkar

S. Aktas

G.L. Alberghi

G.L. Albouy

Z.L. Alegria

I.N. Aleksandrov

H.M.J. Ali

S.W. Alibocus

South Africa

B.M.M. Allbrooke

J.S. Allen

J.F. Allen

P.P. Allport

Z.M.K. Alsolami

M.G. Alviggi

C.G. Ames

B. Amini

K. Amirie

A. Amirkhanov

Measurement of the top quark mass with the ATLAS detector using <math altimg='si1.svg'><mi>t</mi><mover accent='true'><mrow><mi>t</mi></mrow><mrow><mo stretchy='false'>&#175;</mo></mrow></mover></math> events with a high transverse momentum top quark