scholarly journals PROSPECTS FOR KLOE-2

2011 ◽  
Vol 26 (03n04) ◽  
pp. 529-532
Author(s):  
◽  
PAWEŁ MOSKAL
Keyword(s):  
Quantum Mechanics ◽  
Standard Model ◽  
Ground State ◽  
Neutral Kaon ◽  
Beyond The Standard Model ◽  
Fundamental Symmetries ◽  
Leptonic Decays ◽  
Electron Positron ◽  
The Standard Model

The basic motivation of the KLOE-2 experiment is the test of fundamental symmetries and Quantum Mechanics coherence of the neutral kaon system, and the search for phenomena beyond the Standard Model in the hadronic and leptonic decays of ground-state mesons. Perspectives for experimentation by means of the KLOE-2 apparatus equipped with the inner tracker, new scintillation calorimeters, and the γγ taggers at the DAΦNE electron-positron collider upgraded in luminosity and energy are presented.

scholarly journals An optical tweezer array of ultracold molecules

Science ◽  
2019 ◽  
Vol 365 (6458) ◽  
pp. 1156-1158 ◽  
Author(s):  
Loïc Anderegg ◽  
Lawrence W. Cheuk ◽  
Yicheng Bao ◽  
Sean Burchesky ◽  
Wolfgang Ketterle ◽  
...  
Keyword(s):  
Standard Model ◽  
Ground State ◽  
Optical Tweezer ◽  
Precision Measurements ◽  
Full Potential ◽  
Beyond The Standard Model ◽  
Ultracold Molecules ◽  
The Standard Model ◽  
Calcium Monofluoride ◽  
Individual Particles

Ultracold molecules have important applications that range from quantum simulation and computation to precision measurements probing physics beyond the Standard Model. Optical tweezer arrays of laser-cooled molecules, which allow control of individual particles, offer a platform for realizing this full potential. In this work, we report on creating an optical tweezer array of laser-cooled calcium monofluoride molecules. This platform has also allowed us to observe ground-state collisions of laser-cooled molecules both in the presence and absence of near-resonant light.

scholarly journals High Energy Colliding Beams; What Is Their Future?

2014 ◽  
Vol 07 ◽  
pp. 1-8 ◽  
Author(s):  
Burton Richter
Keyword(s):  
Standard Model ◽  
High Energy ◽  
Beyond The Standard Model ◽  
Proton Proton ◽  
Electron Positron ◽  
The Standard Model ◽  
To Come ◽  
Colliding Beams

The success of the first few years of LHC operations at CERN, and the expectation of more to come as the LHC's performance improves, are already leading to discussions of what should be next for both proton–proton and electron–positron colliders. In this discussion I see too much theoretical desperation caused by the so-far-unsuccessful hunt for what is beyond the Standard Model, and too little of the necessary interaction of the accelerator, experimenter, and theory communities necessary for a scientific and engineering success. Here, I give my impressions of the problem, its possible solution, and what is needed to have both a scientifically productive and financially viable future.

scholarly journals Neutral Kaon mixing beyond the Standard Model

2016 ◽  
Author(s):  
Renwick J. Hudspith ◽  
Nicolas Garron ◽  
Andrew Lytle
Keyword(s):  
Standard Model ◽  
Neutral Kaon ◽  
Beyond The Standard Model ◽  
The Standard Model

scholarly journals Searching for new physics in semi-leptonic baryon decays

2017 ◽  
Vol 32 (08) ◽  
pp. 1750043 ◽  
Author(s):  
E. Di Salvo ◽  
Z. J. Ajaltouni
Keyword(s):  
Standard Model ◽  
Decay Width ◽  
Form Factors ◽  
New Physics ◽  
Scalar Coupling ◽  
Partial Decay Width ◽  
Beyond The Standard Model ◽  
Leptonic Decays ◽  
The Standard Model ◽  
Pseudo Scalar

We propose two different and complementary observables for singling out possible signals of physics beyond the Standard Model (SM) in the semi-leptonic decays [Formula: see text], both with the [Formula: see text] lepton and with a light lepton. The two observables are the partial decay width and a T-odd asymmetry, whose respective sensitivities to scalar and/or pseudo-scalar coupling are calculated as functions of the parameters characterizing new physics (NP). Two different form factors are used. Three particular cases are discussed and analyzed in detail.

scholarly journals Beyond the Standard Model

2020 ◽  
pp. 455-517
Author(s):  
Eliezer Rabinovici
Keyword(s):  
Quantum Mechanics ◽  
Standard Model ◽  
Life Time ◽  
Full Detail ◽  
Proton Antiproton ◽  
Hadronic Collider ◽  
Electron Positron ◽  
The Standard Model ◽  
Almost All ◽  
New Generation

AbstractStarting sometime in 2008/2009 one expects to be able to take a glimpse at physics at the TeV scale. This will be done through the Large Hadronic Collider (LHC) at CERN, Geneva. It will be a result of an unprecedented coordinated international scientific effort. This chapter is written in 2007. It is essentially inviting disaster to spell out in full detail what the current various theoretical speculations on the physics are, as well motivated as they may seem at this time. What I find of more value is to elaborate on some of the ideas and the motivations behind them. Some may stay with us, some may evolve and some may be discarded as the results of the experiments unfold. When the proton antiproton collider was turned on in the early eighties of the last century at Cern the theoretical ideas were ready to face the experimental results in confidence, a confidence which actually had prevailed. The emphasis was on the tremendous experimental challenges that needed to be overcome in both the production and the detection of the new particles. As far as theory was concerned this was about the physics of the standard model and not about the physics beyond it. The latter part was left safely unchallenged. That situation started changing when the large electron positron (LEP) collider experiments also at Cern were turned on as well the experiments at the Tevatron at Fermilab. Today it is with rather little, scientifically based, theoretical confidence that one is anticipating the outcome of the experiments. It is less the method and foundations that are tested and more the prejudices. It is these which are at the center of this chapter. Some claim to detect over the years an oscilatory behavior in the amount of conservatism expressed by leaders in physics. The generation in whose life time relativity and quantum mechanics were discovered remained non-conservative throughout their life. Some of the latter developed eventually such adventurous ideas as to form as a reaction a much more conservative following generation. The conservative generation perfected the inherited tools and has uncovered and constructed the Standard Model. They themselves were followed by a less conservative generation. The new generation was presented with a seemingly complete description of the known forces. In order to go outside the severe constraints of the Standard Model the new generation has drawn upon some of the more adventurous ideas of the older generation as well as created it own ideas. In a way almost all accepted notions were challenged. In the past such an attitude has led to major discoveries such as relativity and quantum mechanics. In some cases it was carried too far, the discovery of the neutrino was initially missed as energy conservation was temporarily given up.

scholarly journals Spin as an intrinsic form of top angular momentum

2019 ◽  
Vol 204 ◽  
pp. 02004
Author(s):  
Ivanhoe Pestov
Keyword(s):  
Quantum Mechanics ◽  
Angular Momentum ◽  
Standard Model ◽  
Particle Physics ◽  
New Physics ◽  
Internal Symmetry ◽  
Emergent Property ◽  
Beyond The Standard Model ◽  
The Standard Model ◽  
Intrinsic Form

In quantum mechanics and particle physics, Spin is considered as an intrinsic form of the quantum orbital angular momentum. The goal of this paper is to demonstrate that in accordance with the creative original idea of Kronig, Uhlenbeck and Goudsmit, Spin can be represented as an intrinsic form of quantum Spherical Top angular momentum. It will be shown that this internal symmetry can be realized on a set of the simplest geometrical quantities, which themselves do not exhibit this emergent property. That is why this phenomenon will be called Emergent Spin. The concept of Spin as an emergent property is more general than the habitual concept of Spin and, hence, it can be interesting in terms of discussion of possible ways to look for a physics beyond the Standard Model. Now, there is no doubt that new physics really exists and we need clear guidance on the best place to look.

scholarly journals Survival of new physics: Anomaly-free neutral gauge boson at the LHC

2014 ◽  
Vol 29 (08) ◽  
pp. 1450046
Author(s):  
Ying Zhang ◽  
Qing Wang
Keyword(s):  
Standard Model ◽  
Direct Detection ◽  
Decay Channel ◽  
Hadron Collider ◽  
New Physics ◽  
Beyond The Standard Model ◽  
Effective Lagrangian ◽  
Charge Assignment ◽  
Electron Positron ◽  
The Standard Model

An anomaly-free U(1)′ effective Lagrangian as a benchmark of new physics beyond the standard model is proposed to survey the maximal parameter space constrained by the precise electroweak measurements at the Large Electron-Positron Collider (LEP) and direct detection of the dilepton decay channel at [Formula: see text] at the Large Hadron Collider (LHC). By the global fit of the effective couplings of the Z boson to the Standard Model fermions, parameters Δ11, Δ21 and g′′Δ31 related to mixings and r related to the U(1)′ charge assignment are bounded. The allowed areas are plotted not only in the r–g′′ plane, but also in the mZ′–g′′ plane. They show that a sub-TeV Z′ is still permissible as long as the coupling g′′ is of order ~0.01. The results hint at possible new physics beyond the standard model. A prediction of the possible signal for the dilepton decay channel at [Formula: see text] at LHC is also provided.

Sign in / Sign up

Export Citation Format

Share Document