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Physics#Higgs Physics, 2HDM🔬 ResearchAnalyzed: Jan 3, 2026 08:37

Correlating Resonant Di-Higgs and Tri-Higgs Production in 2HDM

Published:Dec 31, 2025 13:56
1 min read
ArXiv

Analysis

This paper investigates the Two-Higgs-Doublet Model (2HDM) and explores correlations between different Higgs boson production processes. The key finding is a relationship between the branching ratios of H decaying to hh and VV, and the potential for measuring tri-Higgs production at the High-Luminosity LHC. This is significant because it provides a way to test the 2HDM and potentially discover new heavy scalars.

Key Takeaways

Reference

For heavy scalar masses between 500 GeV and 1 TeV, we find that Br($H\to hh$)/ Br($H\to ZZ)\approx 9.5.

Analysis

This paper presents a search for charged Higgs bosons, a hypothetical particle predicted by extensions to the Standard Model of particle physics. The search uses data from the CMS detector at the LHC, focusing on specific decay channels and final states. The results are interpreted within the generalized two-Higgs-doublet model (g2HDM), providing constraints on model parameters and potentially hinting at new physics. The observation of a 2.4 standard deviation excess at a specific mass point is intriguing and warrants further investigation.
Reference

An excess is observed with respect to the standard model expectation with a local significance of 2.4 standard deviations for a signal with an H$^\pm$ boson mass ($m_{\mathrm{H}^\pm}$) of 600 GeV.

Squeezed States of Composite Bosons

Published:Dec 29, 2025 21:11
1 min read
ArXiv

Analysis

This paper explores squeezed states in composite bosons, specifically those formed by fermion pairs (cobosons). It addresses the challenges of squeezing in these systems due to Pauli blocking and non-canonical commutation relations. The work is relevant to understanding systems like electron-hole pairs and provides a framework to probe compositeness through quadrature fluctuations. The paper's significance lies in extending the concept of squeezing to a non-standard bosonic system and potentially offering new ways to characterize composite particles.
Reference

The paper defines squeezed cobosons as eigenstates of a Bogoliubov transformed coboson operator and derives explicit expressions for the associated quadrature variances.

BESIII Searches for New Physics

Published:Dec 29, 2025 06:47
1 min read
ArXiv

Analysis

This paper summarizes recent results from the BESIII experiment, focusing on searches for physics beyond the Standard Model, particularly dark matter. It highlights the motivation for these searches, driven by the Standard Model's limitations and the observed abundance of dark matter. The paper emphasizes the potential of BESIII to probe new particles, such as light Higgs bosons, dark photons, and dark baryons, within the few-GeV mass range. The significance lies in the experimental effort to directly detect dark matter or related particles, complementing astrophysical observations and potentially providing insights into the matter-antimatter asymmetry.
Reference

The paper focuses on searches for new physics particles that could be accessible by the BESIII if their masses lie in the few-GeV range.

Analysis

This paper proposes a method to search for Lorentz Invariance Violation (LIV) by precisely measuring the mass of Z bosons produced in high-energy colliders. It argues that this approach can achieve sensitivity comparable to cosmic ray experiments, offering a new avenue to explore physics beyond the Standard Model, particularly in the weak sector where constraints are less stringent. The paper also addresses the theoretical implications of LIV, including its relationship with gauge invariance and the specific operators that would produce observable effects. The focus on experimental strategies for current and future colliders makes the work relevant for experimental physicists.
Reference

Precision measurements of resonance masses at colliders provide sensitivity to LIV at the level of $10^{-9}$, comparable to bounds derived from cosmic rays.

research#physics🔬 ResearchAnalyzed: Jan 4, 2026 06:50

Non-SUSY physics and the Atiyah-Singer index theorem

Published:Dec 28, 2025 11:34
1 min read
ArXiv

Analysis

This article likely explores the intersection of non-supersymmetric (non-SUSY) physics and the Atiyah-Singer index theorem. The Atiyah-Singer index theorem is a powerful mathematical tool used in physics, particularly in areas like quantum field theory and string theory. Non-SUSY physics refers to physical theories that do not possess supersymmetry, a symmetry that relates bosons and fermions. The article probably investigates how the index theorem can be applied to understand aspects of non-SUSY systems, potentially providing insights into their properties or behavior.
Reference

The article's focus is on the application of a mathematical theorem (Atiyah-Singer index theorem) to a specific area of physics (non-SUSY physics).

Analysis

This paper explores a novel ferroelectric transition in a magnon Bose-Einstein condensate, driven by its interaction with an electric field. The key finding is the emergence of non-reciprocal superfluidity, exceptional points, and a bosonic analog of Majorana fermions. This work could have implications for spintronics and quantum information processing by providing a new platform for manipulating magnons and exploring exotic quantum phenomena.
Reference

The paper shows that the feedback drives a spontaneous ferroelectric transition in the magnon superfluid, accompanied by a persistent magnon supercurrent.

Analysis

This paper investigates the potential for detecting charged Higgs bosons, a key prediction of extensions to the Standard Model, at the Compact Linear Collider (CLIC). It focuses on a specific decay channel and provides simulation results to assess the feasibility of observing these particles. The study's significance lies in its contribution to the ongoing search for physics beyond the Standard Model and its exploration of the CLIC's capabilities.
Reference

The study finds that the signal significance can reach 5σ for 400 GeV and 600 GeV charged Higgs bosons in specific parameter spaces, and presents 2σ exclusion limits.

Bethe Ansatz for Bose-Fermi Mixture

Published:Dec 25, 2025 16:31
1 min read
ArXiv

Analysis

This paper provides an exact Bethe-ansatz solution for a one-dimensional mixture of bosons and spinless fermions with contact interactions. It's significant because it offers analytical results, including the Drude weight matrix and excitation velocities, which are crucial for understanding the system's low-energy behavior. The study's findings support the presence of momentum-momentum coupling, offering insights into the interaction between the two subsystems. The developed method's potential for application to other nested Bethe-ansatz models enhances its impact.
Reference

The excitation velocities can be calculated from the knowledge of the matrices of compressibility and the Drude weights, as their squares are the eigenvalues of the product of the two matrices.

Analysis

This article likely presents research on particle physics, specifically exploring constraints on hypothetical bosons beyond the Standard Model. The methodology involves precision spectroscopy of muonic atoms (atoms where an electron is replaced by a muon) using magic nuclei, which are nuclei with specific numbers of protons and neutrons that exhibit enhanced stability. The term "self-consistent bounds" suggests the researchers are aiming for rigorous and reliable limits on the properties of these new bosons.
Reference

Research#physics🔬 ResearchAnalyzed: Jan 4, 2026 09:01

Renormalization of U(1) Gauge Boson Kinetic Mixing

Published:Dec 16, 2025 19:00
1 min read
ArXiv

Analysis

This article likely discusses a technical topic in theoretical physics, specifically quantum field theory. The title suggests an investigation into how the kinetic mixing of U(1) gauge bosons is affected by renormalization, a process used to remove infinities from calculations in quantum field theory. The source, ArXiv, indicates this is a pre-print or published research paper.
Reference

Without the full text, it's impossible to provide a specific quote. However, the paper would likely contain mathematical equations and detailed explanations of the renormalization process and its effects on the kinetic mixing.

Analysis

This article from ArXiv discusses the application of machine learning to analyze interference effects in the production and decay of di-Higgs bosons within the Standard Model, specifically focusing on the $4b$ final state. The research likely explores how machine learning techniques can improve the detection and understanding of these complex interactions.

Key Takeaways

    Reference