scholarly journals COMET, an Experiment to Search for mu-e Conversion in a Nuclear Field

2018 ◽  
Vol 46 ◽  
pp. 1860065
Author(s):  
Hiroaki Natori
Keyword(s):  
Elementary Particle ◽  
Particle Physics ◽  
New Physics ◽  
Experimental Limit ◽  
Elementary Particle Physics ◽  
Lepton Flavor ◽  
Nuclear Field ◽  
Past Experiment ◽  
The Standard Model ◽  
Current Experimental Limit

Charged lepton flavor violating (CLFV) process is predicted to be out of experimental reach by the Standard Model of elementary particle physics (SM). However, many models of the new physics beyond the SM predicts that it is just below the current experimental limit. COMET searches for one of the CLFV process, mu-e conversion in a nuclear field, improving the sensitivity by a factor of approximately [Formula: see text] for Phase-I and [Formula: see text] for Phase-II experiment from a past experiment.

Chapter 1 Physics Goal of BES-III

2009 ◽  
Vol 24 (supp01) ◽  
pp. 3-7 ◽  
Author(s):  
Jian-Ping Ma
Keyword(s):  
Elementary Particle ◽  
Standard Model ◽  
Quantum Chromodynamics ◽  
Particle Physics ◽  
New Physics ◽  
The Other ◽  
Fundamental Theory ◽  
Elementary Particle Physics ◽  
The Standard Model

The Standard Model (SM) has been successful at describing all relevant experimental phenomena and, thus, has been generally accepted as the fundamental theory of elementary particle physics. Despite its success, the SM leaves many unanswered questions. These can be classified into two main categories: one for subjects related to possible new physics at unexplored energy scales and the other for nonperturbertive physics, mostly related to Quantum Chromodynamics…

scholarly journals Die topkwark

1998 ◽  
Vol 17 (2) ◽  
pp. 68-71
Author(s):  
R. Tegen
Keyword(s):  
Elementary Particle ◽  
Standard Model ◽  
Top Quark ◽  
Particle Physics ◽  
Relevant Literature ◽  
Big Bang ◽  
Elementary Particle Physics ◽  
The Standard Model ◽  
Technical Article

The importance of the recent discovery of the top-quark at Fermilab in Chicago is reviewed. It is shown that the top-quark is important for Big-Bang physics as well as for the Standard Model of Elementary Particle Physics. Relevant literature for further reading can be traced from the list of references given in this short, non-technical article.

scholarly journals The Search for μ+ → e+γ with 10–14 Sensitivity: The Upgrade of the MEG Experiment

Symmetry ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1591
Author(s):  
Alessandro M. Baldini ◽  
Vladimir Baranov ◽  
Michele Biasotti ◽  
Gianluigi Boca ◽  
Paolo W. Cattaneo ◽  
...  
Keyword(s):  
Particle Physics ◽  
Rate Capability ◽  
Muon Beam ◽  
Paul Scherrer Institute ◽  
Current Status ◽  
Elementary Particle Physics ◽  
Lepton Flavor ◽  
The Standard Model ◽  
Stringent Limit ◽  
Paul Scherrer

The MEG experiment took data at the Paul Scherrer Institute in the years 2009–2013 to test the violation of the lepton flavor conservation law, which originates from an accidental symmetry that the Standard Model of elementary particle physics has, and published the most stringent limit on the charged lepton flavor violating decay μ+→e+γ: BR(μ+→e+γ) <4.2×10−13 at 90% confidence level. The MEG detector has been upgraded in order to reach a sensitivity of 6×10−14. The basic principle of MEG II is to achieve the highest possible sensitivity using the full muon beam intensity at the Paul Scherrer Institute (7×107 muons/s) with an upgraded detector. The main improvements are better rate capability of all sub-detectors and improved resolutions while keeping the same detector concept. In this paper, we present the current status of the preparation, integration and commissioning of the MEG II detector in the recent engineering runs.

scholarly journals The Higgs Boson, The God Particle, and the Correlation Between Scientific and Religious Narratives

Open Theology ◽  
2015 ◽  
Vol 1 (1) ◽  
Author(s):  
Lorns-Olaf Stahlberg
Keyword(s):  
Elementary Particle ◽  
Particle Physics ◽  
Science And Religion ◽  
Theoretical Terms ◽  
Elementary Particle Physics ◽  
The Standard Model ◽  
Real Physical Process ◽  
The Common ◽  
The Individual ◽  
Object Level

AbstractThe Higgs mechanism – as part of the Standard Model of Elementary Particle Physics – is mostly considered to be a real physical process that brings about the mass of every elementary particle. Recent discussions show that there are alternative interpretations of it, differing from the common one in the spectrum and the features of some specific physical objects. This, in turn, shows that the problem of reference remains unsolved for physical theories: It is not obvious what kind of objects theoretical terms exactly refer to. Given the fact that the reference to the object level is ambiguous even in the natural sciences, what correlations can be established between scientific terms and religious expressions at all? Do ontic ambiguities make the dialogue between science and religion easier or more complicated? This article reflects on these questions by examining the possible significations (and interrelations) of scientific and religious signs in general as well as from the perspective of the individual. I suggest that religious storytelling and ritual practices can establish specific associations between scientific and religious worldviews under certain conditions – without confusing the different world-views conceptually.

scholarly journals The Higgs di-photon decay in the standard model effective field theory

2019 ◽  
Vol 17 (1, spec.issue) ◽  
pp. 89-96
Author(s):  
Lampros Trifyllis
Keyword(s):  
Field Theory ◽  
Standard Model ◽  
Effective Field Theory ◽  
Particle Physics ◽  
New Physics ◽  
Effective Field ◽  
Elementary Particle Physics ◽  
Photon Decay ◽  
Higher Dimensional ◽  
The Standard Model

Starting from the Standard Model (SM) of elementary particle physics, we assume that new physics effects can be encoded in higher-dimensional operators added in the SM Lagrangian. The resulting theory, the SM Effective Field Theory (SMEFT), is then used for high-accuracy phenomenological studies. Through this paper, the di-photon decay of the Higgs boson is used as a sample of a concrete calculation in the SMEFT framework.

Sign in / Sign up

Export Citation Format

Share Document