AI Article Synopsis
- The production of Higgs boson pairs at the LHC can help in measuring its self-coupling (lambda) via decays into same-sign dileptons.
- The study shows that approximating the large top quark mass is not effective when analyzing differential distributions for these signals.
- With the planned luminosity, the LHC could confirm a nonzero Higgs self-coupling and narrow down the ratio of lambda to the predicted standard model value to between 0 and 3.7 at a 95% confidence level, particularly for Higgs masses between 150 and 200 GeV.
Article Abstract
Inclusive standard model Higgs boson pair production and subsequent decay to same-sign dileptons via weak gauge W+/- bosons at the CERN Large Hadron Collider (LHC) has the capability to determine the Higgs boson self-coupling, lambda. The large top quark mass limit is found not to be a good approximation for the signal if one wishes to utilize differential distributions in the analysis. We find that it should be possible at the LHC with design luminosity to establish that the standard model Higgs boson has a nonzero self-coupling and that lambda/lambda(SM) can be restricted to a range of 0-3.7 at 95% confidence level if its mass is between 150 and 200 GeV.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.89.151801 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Magnetic field control over the axial character of Higgs modes in charge-density wave compounds.
Nat Commun
January 2025
Department of Physics and Astronomy, Seoul National University, Seoul, Korea.
Understanding how symmetry-breaking processes generate order out of disorder is among the most fundamental problems of nature. The scalar Higgs mode - a massive (quasi-) particle - is a key ingredient in these processes and emerges with the spontaneous breaking of a continuous symmetry. Its related exotic and elusive axial counterpart, a Boson with vector character, can be stabilized through the simultaneous breaking of multiple continuous symmetries.
View Article and Find Full Text PDFIndications, complications and outcomes of minimally-invasive lateral lumbar interbody fusion with anterior column realignment vs. standard LLIF using expandable interbody spacers.
Front Surg
December 2024
Spine Center of Eastern Switzerland, Cantonal Hospital of St. Gallen & Medical School of St. Gallen, St. Gallen, Switzerland.
Background: Anterior column realignment (ACR), using a lateral lumbar or thoracic interbody fusion (LLIF) approach to release the anterior longitudinal ligament (ALL), is a powerful technique to increase segmental lordosis. We here report our experience with the use of expandible LLIF cages for ACR.
Methods: Retrospective, single-center observational cohort study including consecutive patients treated by LLIF using an expandible interbody implant.
Impact of Next-to-Leading-Order Weak Standard-Model-Effective-Field-Theory Corrections in e^{+}e^{-}→ZH.
Phys Rev Lett
December 2024
High Energy Theory Group, Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
We present results from a complete next-to-leading order (NLO) calculation of e^{+}e^{-}→ZH in the standard model effective field theory (SMEFT) framework, including all contributions from dimension-six operators. At NLO, there are novel dependencies on CP violating parameters in the gauge sector, on modifications to the Higgs boson self-couplings, on alterations to the top quark Yukawa couplings, and on four-fermion operators involving the electron and the top quark, among others. We show that including only the logarithms resulting from renormalization group scaling can produce misleading results, and further, we explicitly demonstrate the constraining power of combining measurements from different energy scales.
View Article and Find Full Text PDFCost Savings in Chronic Pain Patients Initiating Peripheral Nerve Stimulation (PNS) with a 60-Day PNS Treatment.
Pain Ther
November 2024
SPR Therapeutics, Cleveland, OH, USA.
Article Synopsis
- This study examines the financial effects on healthcare payers of using 60-day peripheral nerve stimulation (60-Day PNS) compared to a conventional brief trial (PNS-BT) for chronic pain patients.
- Analysis of Medicare data revealed that patients starting with 60-Day PNS had lower costs and fewer complications when progressing to permanent implants compared to those starting with PNS-BT.
- Overall, the 60-Day PNS approach is more cost-effective, resulting in lower costs per successful treatment outcome for chronic pain management.
HHH whitepaper.
Eur Phys J C Part Fields
November 2024
Department of Physics, University of Wisconsin, Madison, WI 53706 USA.
Article Synopsis
- - The HHH Workshop held in Dubrovnik in July 2023 focused on advancing the understanding of the Higgs boson and its properties within the Standard Model (SM).
- - To confirm or challenge the SM, researchers need to measure the full potential of the Higgs, including the triple and quartic scalar couplings, particularly involving three scalar bosons at around 125 GeV.
- - The report highlights ongoing experimental efforts and theoretical models aimed at improving measurement rates and addressing challenges related to multi-scalar final states.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!