Results 41 to 50 of about 30,674,625 (179)

Constraints on Loryons in a two Higgs doublet model

open access: yesJournal of High Energy Physics
We consider Loryons, particles beyond the Standard Model that receive a significant fraction of their masses from electroweak symmetry breaking, in the context of a two Higgs doublet model.
Can Kilic, Sanjay Mathai, Taewook Youn
doaj   +1 more source

Caregiving and Respite for People With Motor Neurone Disease: A National Cross‐Sectional Survey of Experiences and Challenges

open access: yesJournal of Clinical Nursing, EarlyView.
ABSTRACT Aims To ascertain care support for people with motor neurone disease encompassing formal and informal care (funded and unfunded care), residential respite utilisation, care tasks performed by family members, and experiences and challenges encountered in accessing funded care. Design National cross‐sectional survey.
Natalie Gauld   +7 more
wiley   +1 more source

Exploring the potential of FCC-hh to search for particles from B mesons

open access: yesJournal of High Energy Physics, 2023
The Future Circular hadron Collider (FCC-hh) is a proposed successor of the Large Hadron Collider (LHC). FCC-hh would push both the energy and intensity frontiers of searches for new physics particles.
Alexey Boyarsky   +3 more
doaj   +1 more source

Long‐Term Performance and Bulk‐Isotope Effects in Methane Clumped‐Isotope Measurements Using a 253 Ultra HR‐IRMS

open access: yesRapid Communications in Mass Spectrometry, Volume 41, Issue 1, 15 January 2027.
ABSTRACT Rationale Changes in instrument condition over time may affect methane clumped‐isotope measurements, requiring long‐term monitoring of calibration performance. Whether the 253 Ultra calibration framework remains valid over multiyear operation and applicable across natural bulk‐isotope compositions, particularly to low‐δD methane with weak ...
Naizhong Zhang   +8 more
wiley   +1 more source

B-meson decay width up to 1 / m b 3 $$ 1/{m}_b^3 $$ corrections within and beyond the Standard Model

open access: yesJournal of High Energy Physics
Starting from the most general effective |∆B| = 1 Hamiltonian describing non-leptonic b-quark decays b → q 1 q ¯ 2 q 3 $$ b\to {q}_1{\overline{q}}_2{q}_3 $$ , we compute analytic expressions for all matching coefficients of the two-quark operator ...
Martin Lang   +4 more
doaj   +1 more source

Evaluation of Timing and Amplitude Biases in the Controls of Simulated Southern Ocean pCO2

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 10, October 2026.
Abstract The Southern Ocean is a major sink for atmospheric carbon dioxide and critical to the current and future carbon cycle. This net annual CO2 ${\text{CO}}_{2}$ flux reflects the balance of strong seasonal variability characterized by opposing periods of winter outgassing and summer uptake. Using a simple framework, we evaluate how model biases in
Seth M. Bushinsky   +11 more
wiley   +1 more source

Two-loop corrections to the Higgs trilinear coupling in classically scale-invariant BSM models

open access: yes, 2021
The Higgs trilinear coupling provides can serve as a unique probe to investigate the structure of the Higgs sector and the nature of the electroweak phase transition, and to search for indirect signs of New Physics. Meanwhile, classical scale invariance (
Braathen, Johannes
core  

Di-Higgs signatures in neutral naturalness

open access: yesJournal of High Energy Physics
The Higgs boson was the last fundamental piece of the Standard Model to be experimentally confirmed. LHC is embarked in a quest to probe the possibility that this particle provides a portal to new physics.
Mario W. Barela, Rodolfo Capdevilla
doaj   +1 more source

Uncovering a chirally suppressed mechanism of 0νββ decay with LHC searches

open access: yesJournal of High Energy Physics, 2022
∆L = 2 lepton number violation (LNV) at the TeV scale could provide an alternative interpretation of positive signal(s) in future neutrinoless double beta (0νββ) decay experiments.
Michael L. Graesser   +4 more
doaj   +1 more source

Cryogen‐Aided Chromatographic Purification of Millimole Quantities of Methane for Spectroscopic Clumped Isotope Analysis

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Quantum cascade laser absorption spectroscopy (QCLAS) is a fast and reliable method for analyzing the bulk (𝛿13C‐CH4, 𝛿D‐CH4) and clumped isotopic (∆13CH3D and ∆12CH2D2) composition of methane. However, precise measurements of ∆12CH2D2 require 0.5 to 1.8 mmol of purified methane (equivalent to 15 to 40 mL at STP).
Nico Kueter   +6 more
wiley   +1 more source

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