Indian Institute of Technology Bhubaneswar

Quasi-harmonic spectra from branched Hamiltonians

Aritra Ghosh, Bijan Bagchi, A. Ghose-Choudhury +2

We revisit the canonical quantization to assess the spectrum of the modified Emden equation $x ¨ + k x x ˙ + ω^{2} x + \frac{k ^{2}}{9} x^{3} = 0$ , which is an isochronous case of t…

Characterization of the quantum state of top quark pairs produced in proton-proton collisions at $s$ = 13 TeV using the beam and helicity bases

CMS Collaboration

Measurements of the spin correlation coefficients in the beam basis are presented for top quark-antiquark ( $t t ˉ$ ) systems produced in proton-proton collisions at $\sq…

Measurements of electroweak production of a photon in association with two jets in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

The first observation of electroweak production of a photon in association with two forward jets in proton-proton collisions is presented. The measurement uses data recorded by the…

Twin Hamiltonians, three types of the Dyson maps, and the probabilistic interpretation problem in quasi-Hermitian quantum mechanics

Aritra Ghosh, Adam Miranowicz, Miloslav Znojil

In the framework of the so-called quasi-Hermitian quantum mechanics of stationary unitary systems, bound states are usually constructed as eigenstates $∣ ψ_{n} ⟩$ of a Hamiltoni…

Search for low-mass hidden-valley dark showers with non-prompt muon pairs in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A search for signatures of a dark analog to quantum chromodynamics is performed. The analysis targets long-lived dark mesons that decay into standard-model particles, with a high b…

Search for a new neutral gauge boson produced in association with one or two b jets and decaying into a pair of muons in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A search for a new neutral gauge boson, Z', produced in association with one or two jets, including at least one b jet, and decaying into a pair of muons is presented. The analysis…

Jet fragmentation function and groomed substructure of bottom quark jets in proton-proton collisions at 5.02 TeV

CMS Collaboration

A measurement of the substructure of bottom quark jets (b jets) in proton-proton (pp) collisions is presented. The measurement uses data collected in pp collisions at $s$ =…

Search for long-lived particles using displaced vertices with low-momentum tracks in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A search for long-lived particles using final states including a displaced vertex with low-momentum tracks, large missing transverse momentum, and a jet from initial-state radiatio…

Noninvertible Kramers-Wannier duality symmetries for the discrete-time quantum Ising chain

Akash Sinha, Pramod Padmanabhan, Vladimir Korepin

Integrable trotterization} provides a method to evolve a continuous time integrable many-body system in discrete time, such that it retains its conserved quantities. Here we explic…

Inclusive and differential measurements of the $t t ˉ γ$ cross section and the $t t ˉ γ$ / $t t ˉ$ cross section ratio in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

Inclusive and differential cross section measurements of top quark pair ( $t t ˉ$ ) production in association with a photon ( $γ$ ) are performed as a function of lepton, p…

math.RT2025

A Combinatorial Technique for the Wedderburn Decomposition of Rational Group Algebras of Nested GVZ $p$ -groups

Ram Karan Choudhary, Sunil Kumar Prajapati

In this article, we present a combinatorial formula for the Wedderburn decomposition of rational group algebras of nested GVZ $p$ -groups, where $p$ is an odd prime. Using this form…

Search for single production of a vector-like T quark decaying to a top quark and a neutral scalar boson in the lepton+jets final state in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A search for single production of a vector-like T quark with charge 2 $e$ /3, decaying to a top quark and a neutral scalar boson is presented. The boson can be a standard model Higgs…

Search for dijet resonances with data scouting in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A search is presented for narrow resonances, with a mass between 0.6 and 1.8 TeV, decaying to pairs of jets, in proton-proton collisions at $s$ = 13 TeV. The search is perfo…

Single-shot antidistinguishability of unitary operations

Satyaki Manna, Anandamay Das Bhowmik

The notion of antidistinguishability captures the possibility of ruling out certain alternatives in a quantum experiment without identifying the actual outcome. Although extensivel…

Search for dark matter production in association with bottom quarks and a lepton pair in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A search is performed for dark matter produced in association with bottom quarks and a pair of electrons or muons in data collected with the CMS detector at the LHC, corresponding…

nucl-ex2025★ 5 cited

Observation of suppressed charged-particle production in ultrarelativistic oxygen-oxygen collisions

CMS Collaboration

A hot and dense state of nuclear matter, known as the quark-gluon plasma, is created in collisions of ultrarelativistic heavy nuclei. Highly energetic quarks and gluons, collective…

nucl-ex2025★ 3 cited

Observation of long-range collective flow in OO and NeNe collisions and implications for nuclear structure studies

CMS Collaboration

The long-range collective flow of particles produced in oxygen-oxygen (OO) and neon-neon (NeNe) collisions is measured with the CMS detector at the CERN LHC. The data samples were…

Measurement of the dineutrino system kinematic variables in dileptonic top quark pair production in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

Differential top quark pair production cross sections are measured in the dilepton final states e $^{+}$ e $^{-}$ , $μ^{+} μ^{-}$ , and e $^{\pm} μ^{\mp}$ , as a function of kinematic variables of the…

Vector boson scattering and anomalous quartic couplings in final states with $ℓ ν$ qq or $ℓℓ$ qq plus jets using proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

A measurement is presented of the electroweak vector boson scattering production of ZV (V = W, Z) boson pairs associated with two jets in proton-proton collisions at a center-of-ma…

Search for resonances decaying to an anomalous jet and a Higgs boson in proton-proton collisions at $s$ = 13 TeV

CMS Collaboration

This paper presents a search for new physics through the process where a new massive particle, X, decays into a Higgs boson and a second particle, Y. The Higgs boson subsequently d…

Measurements of ttW differential cross sections and the leptonic charge asymmetry at $s$ = 13 TeV

CMS Collaboration

Measurements of properties of top quark-antiquark pair production in association with a W boson in proton-proton collisions at a center-of-mass energy of 13 TeV are presented, usin…

Global versus Local Discrimination of Locally Implementable Multipartite Unitaries

Satyaki Manna, Sneha Suresh, Anandamay Das Bhowmik +1

We study single-shot distinguishability of locally implementable multipartite unitaries under Local Operations and Classical Communication (LOCC) and global operations. As unitary…