## Dennis J. Silverman

Professor Emeritus, Physics & Astronomy

School of Physical Sciences

School of Physical Sciences

PH.D., Stanford University, 1968

B.A., University of California, Los Angeles, 1963

Phone: (949) 824-5149

Fax: (949) 824-2174

Email: djsilver@uci.edu

University of California, Irvine

2125 Frederick Reines Hall

Mail Code: 4575

Irvine, CA 92697

**Research Interests**

Energy and Environment

**URLs**

**Research Abstract**

I have spent the last year on my UCI blog https://sites.uci.edu/energyobserver writing about the IHME projections for predicting the course of the Covid-19 pandemic in the United States, and in the various states, including California. I was also writing about the problems facing science in government before the Presidential election. Now that Energy and Environment is back in government policy, I will be including that again as well.

During the California energy crisis, I made up a set of web pages summarizing California Energy Data. I am continuing this interest in Energy by giving lectures to the Osher Lifelong Learning Institute on Our Energy Future.

I am also working with the UCI Osher Lifelong Learning Institute to provide outreach lectures in physics, by myself and by the Physics and Astronomy faculty.

My previous work in Elementary Particle Theory is described below (before 2002).

In elementary particle theory, we do research in electroweak theories which unify electromagnetic and weak interactions, exploring consequences of the currently verified standard model, and of models of particles beyond this, as could appear in new experiments, especially in B factories, at the tevatron at Fermilab, and at the LHC.

The physics of violation of fundamental particle and space-time symmetries has been intriguing, and that of time reversal violation in particle interactions (or CP violation, involving changing particles with antiparticles, and parity inversion) will soon be explored more cleanly in systems with the heavy bottom or b quark in B mesons at a B factory electron-positron collider and at hadron colliders. In these systems, constraints from fitting CP violating experiments in the K meson system, other CP experiments, and initial B factory experiments, have been used to predict the expected signal from the standard models in the CP violating decays of the B mesons. In models of physics beyond the standard model which contain more elementary quarks, new currents which mix quarks of the same charge occur, leading to new processes with more CP violating phases in the oscillations of B mesons into anti-B mesons. Despite bounds on these new currents, we show that effects of new physics models can be detected at a B factory. We have projected ahead to assuming results from the B factories, and found that additional experiments will be needed in combination with B factory results to verify or rule out models of physics beyond the standard model. My 2001 seminar at UC Irvine (in postscript or in pdf format) is on the model containing new down quarks. We have also analyzed the effect of the Left-Right Model which contains right-handed weak bosons, although at higher mass than the known left-handed weak bosons. I am continuing to update these models after

retirement.

Before retiring from teaching, I have taught Physics 136 (Particle Physics), Physics 237B (Elementary Particle Theory), and Physics 212A (Mathematical Physics). These courses have led to web material on Mathematica instruction, on making up equations in Microsoft Word, and in the solution of the Black-Scholes equation for valuing derivative investments, all on my webpage.

During the California energy crisis, I made up a set of web pages summarizing California Energy Data. I am continuing this interest in Energy by giving lectures to the Osher Lifelong Learning Institute on Our Energy Future.

I am also working with the UCI Osher Lifelong Learning Institute to provide outreach lectures in physics, by myself and by the Physics and Astronomy faculty.

My previous work in Elementary Particle Theory is described below (before 2002).

In elementary particle theory, we do research in electroweak theories which unify electromagnetic and weak interactions, exploring consequences of the currently verified standard model, and of models of particles beyond this, as could appear in new experiments, especially in B factories, at the tevatron at Fermilab, and at the LHC.

The physics of violation of fundamental particle and space-time symmetries has been intriguing, and that of time reversal violation in particle interactions (or CP violation, involving changing particles with antiparticles, and parity inversion) will soon be explored more cleanly in systems with the heavy bottom or b quark in B mesons at a B factory electron-positron collider and at hadron colliders. In these systems, constraints from fitting CP violating experiments in the K meson system, other CP experiments, and initial B factory experiments, have been used to predict the expected signal from the standard models in the CP violating decays of the B mesons. In models of physics beyond the standard model which contain more elementary quarks, new currents which mix quarks of the same charge occur, leading to new processes with more CP violating phases in the oscillations of B mesons into anti-B mesons. Despite bounds on these new currents, we show that effects of new physics models can be detected at a B factory. We have projected ahead to assuming results from the B factories, and found that additional experiments will be needed in combination with B factory results to verify or rule out models of physics beyond the standard model. My 2001 seminar at UC Irvine (in postscript or in pdf format) is on the model containing new down quarks. We have also analyzed the effect of the Left-Right Model which contains right-handed weak bosons, although at higher mass than the known left-handed weak bosons. I am continuing to update these models after

retirement.

Before retiring from teaching, I have taught Physics 136 (Particle Physics), Physics 237B (Elementary Particle Theory), and Physics 212A (Mathematical Physics). These courses have led to web material on Mathematica instruction, on making up equations in Microsoft Word, and in the solution of the Black-Scholes equation for valuing derivative investments, all on my webpage.

Publications

Effects of Right-handed Gauge Bosons in B-Bbar Mixing and CP Violation, D. Silverman, W. K. Sze, and H. Yao, Preprint UCI-TR 2003-15 (2003), hep-ph/0305013.

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Iso-singlet Down Quark Mixing And CP Violation Experiments, D. Hawkins and D. Silverman, Preprint UCI-TR 2002-14 (2002), hep-ph/0205011, Phys. Rev. D66 (2002) 016008 .

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W_R Effects on CP Asymmetries in B Decays, H. Yao and D. Silverman, hep-ph/9706359 revised and updated to (2001), Journal of High Energy Physics, 10 (2001) 008.

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Joint Bayesian Treatment of Poisson and Gaussian Experiments in a Chi-squared Statistic, D. Silverman, Preprint UCI-TR 98-15, physics/9808004 (1998).

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Full Range of Predictions for B Physics From Isosinglet Down Quark Mixing, D. Silverman, UCI-TR 98-14, hep-ph/9806489, Phys. Rev. D 58, 095006 (1998).

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Effects of Anomalous Couplings of Quarks on Prompt Photon Production, K. Cheung and D. Silverman, Phys. Rev. D 55, 2724 (1997), hep-ph/9610318.

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Anomalous Chromomagnetic Moments of Quarks and Large Transverse Energy Jets, D.Silverman UCI-TR 96-12 and SLAC-PUB-7166, hep-ph/9605318, Phys. Rev. D 54, 5563 (1996).

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Maximum Likelihood Analysis for the Cabibbo-Kobayashi-Maskawa Matrix, W.-S. Choong and D. Silverman, Phys. Rev. D49, 1649 (1994).

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Predictability of Charmonium Levels From a Range of Good Fits, E. Altshuler and D. Silverman, Phys. Rev. D48, 2160 (1993).

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Z Mediated B-anti-B Mixing and B Meson CP Violating Asymmetries in the light of New FCNC Bounds, Phys. Rev. D45, 1800 (1992).

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Exploring New Physics with CP Asymmetries in B Decays, Y. Nir and D. Silverman, Nuclear Phys. B345, 301 (1990).

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Z Mediated Flavor-Changing Neutral Currents and their Implications for CP Asymmetries in B Decays, Y. Nir and D. Silverman, Phys. Rev. D42, 1477 (1990).

**Other Experience**

Post Doctorate Fellow

Princeton University 1998—1970

Princeton University 1998—1970

Post Doctoral Fellow

U. C. S. D. 1970—1971

U. C. S. D. 1970—1971

**Link to this profile**

**Last updated**

03/23/2021