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Oscillation and its Implication

12/2/2017

1 Comment

 
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In heralding the dawn of New Physics, the era in which we now live is brimming with optimism. Not for the duration of the Standard Model, which looks set to be tested beyond the limits of its endurance any time now, but for the brave new world we will enter when the old dictums give way to the unprecedented strangeness of things to come.

Quantum physics has stood the test of time in consistently unearthing challenges to the scientific mindset. From early days of its conception when Schroedinger famously placed a cat in a situation of superposition, the spectrum has widened considerably. These days, wave-particle duality and the Everett interpretation are well-worn familiars in the subatomic sector, and while they have lost none of their charm, their strange implications are accepted even if the actuality they represent remains poorly understood. 

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Until such time as neutrino experiments reveal some beautiful new truth about the nature of the Universe, we tread water in waiting to find out what will become of the Standard Model. While we're waiting, it won't hurt to speculate on what oscillation may mean to us, and how we may experience its direct effects on the world we take for granted.

The Standard Model didn't leave any room for oscillating neutrinos, but now that they're here, it's had to be said that they are relatively massive. While being massive, they still manage to pass through most matter unhindered. However big or small a neutrino may be, its passage through you, me, and everything around us seems undeterred. As far as we know at this point in time, there is very little interaction taking place. But that's as far as we know for the time being, and as we know, the things we know can turn on a tanner very easily indeed.
 
The peculiar placement of quark-gluon plasma has made oscillation an apparent feature of particles we're made of, too, for quarks are fundamental to all states of matter. But they, too, are something of an enigma. While QCD lends the colour spectrum to quark behaviour and helps the maths to add up to something making observable sense, quite why quarks oscillate as they do remains a complete mystery. The maths says that Up and Down quarks comprise the fabric most commonplace but then it was commonly believed that the Muon neutrino was the staple composite of everything until oscillation came along to destabilise the notion that neutrinos held their flavour for any length of time. 
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Most of the neutrinos passing through you and me come from the Sun and other cosmic sources. Most of the neutrinos being studied in baseline experiments are terrestrially produced in nuclear reactors or artificial beams, and earth-bound fabricators are unable to reach the energy levels normally needed to birth a neutrino capable of making it to Tau status. Not to say it never happens.

​New experiments like IceCube and ORCA are built to measure neutrinos of cosmic origin and so, for the first time, the Tau is making a regular appearance on the scientific stage. But as is now evident, that's not to say the Tau neutrino hasn't been flying through us in unfathomable numbers on a continuous basis; only that it's managed to do so unseen, so far.  

Now, they say in all notable circles that trusting your gut is crucial. And right from the earliest days of my dalliance with neutrino physics, my gut screamed loudly at me that the Tau was very important. This was before I realised that it was the most massive of the neutrino family, that it was very high-energy, and that like the Beauty and Truth quarks, was said to be short-lived. The last of these is open to question in knowing more about the secret life of the lepton, as science begins to stitch together evidence to suggest that connections are more than the sums they seem to be.

Much breath is being held on the possibility of Majorana coming true, too, which would mean that neutrinos are matter and antimatter at the same time, and if as the double-slit experiment subtly suggests, particles have some ingenious instinct for the things they are about to encounter, perhaps the neutrino sheds its matter status and steathily, without any danger of annihilation, becomes its antimatter self when it passes through atomic material. If so, this would raise fundamental questions of annihilation, and show the electron to be a theatrical narcissist when it comes to creating plausible theories of how the Universe works. For far from being dominated by negatively-charged particles, we might find ourselves free to choose from the options of oscillation in taking our places in life to a new level, in determining our own mind-set according to the nature of the forces and particles with which we may be blessed to interact.

This might seem like wild-card, crazy speculation to you, but when I set off for Gran Sasso in 2008 to bullishly gatecrash Cryodet ll, I'd only just been introduced to the neutrino and had no idea what they were beyond the fact that they existed - now I'm able to decipher most of the material written about them and even understand Powerpoint slides. I might have asked a few crazy questions in the last decade and said some things which maybe shouldn't have been said, but I'm sticking to my guns on the importance of Tau, and look forward to seeing where it takes me.
1 Comment
lucian horwat
12/2/2017 04:12:00 pm

"The laws of motion and thermodynamics that define how matter and energy move and how they interact are basically laws of information. the concept of information content and flow is starting to be used powerfully to describe physical phenomena at deeper and more all-encompassing levels than hitherto. The two twentieth-century pillars of science, the quantum and relativity theories, are also being re-evaluated as informational theories, a development that is being seen as having the potential to finally bring together these as yet unreconciled perspectives of our Universe. Yet as we'll see, this is just the first step to a much more encompassing perception, one that not only aims to understand the completeness of the physical world but also proposes a cosmology that encompasses ALL aspects of existence and experience and seeks answers to the deeper question of not only how reality is as it is but also why. We'll start by seeing how information is becoming viewed as being more fundamental than energy and matter, and indeed, space and time. Along the way we'll discover how the minutest Planck scale of our physical world, trillions of trillions times smaller than the quantum realm, is key to our developing insights regarding the primacy of information. And we'll appreciate that information really is physical and begin our journey to understand how it literally in-forms our Universe - while at the same time transforming our view of what we actually mean by the term physical." Jude Currivan. How did birds wings come into existence? It was a need by small creatures having the desire to fly away from danger, quite a strong desire. That desire is in my view the information that was given to the Universe which creates what thought dictates strongly enough. Probably the most powerful thing in the universe to create good or bad!

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    Kathy Ratcliffe has studied quantum mechanics since 1997 in a life surrounded by birds and animals, She's a metaphysicist, if such a thing exists, looking as we all are for the inevitable bridge between humanity and particle physics.

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