Thursday, November 17, 2011

OPERA provides additional support for neutrino superluminality

OPERA collaboration has just posted an eprint Measurement of the neutrino velocity with the OPERA detector in the CNGS beam providing further support for the claim that neutrinos move faster than photons. Tommaso Dorigo describes the improved measurements in this blog. I have also discussed in an earlier posting the basic new results reported in OPERA preprint (the rumor was correct at this time!). I attach the abstract of the article.

The OPERA neutrino experiment at the underground Gran Sasso Laboratory has measured the velocity of neutrinos from the CERN CNGS beam over a baseline of about 730 km with much higher accuracy than previous studies conducted with accelerator neutrinos. The measurement is based on high-statistics data taken by OPERA in the years 2009, 2010 and 2011. Dedicated upgrades of the CNGS timing system and of the OPERA detector, as well as a high precision geodesy campaign for the measurement of the neutrino baseline, allowed reaching comparable systematic and statistical accuracies. An early arrival time of CNGS muon neutrinos with respect to the one computed assuming the speed of light in vacuum of (57.8 +/- 7.8 (stat.)+8.3-5.9 (sys.)) ns was measured. This anomaly corresponds to a relative difference of the muon neutrino velocity with respect to the speed of light (v-c)/c = (2.37+/- 0.32 (stat.) (sys.)) ×10-5. The above result, obtained by comparing the time distributions of neutrino interactions and of protons hitting the CNGS target in 10.5 μs long extractions, was confirmed by a test performed using a beam with a short-bunch time-structure allowing to measure the neutrino time of flight at the single interaction level.

The new finding is that there is a jitter in arrival times: the arrival times vary within 50 ms range which corresponds to a distance about 15 m. The shortening of travel times is not however not less than 40 ns from that when neutrinos move with light velocity as the this figure that can be found from the posting of Phil Gibbs demonstrates. Is the determination of the arrival time inaccurate? Or does the neutrino velocity have values above minimum velocity larger than c?

  1. In TGD framework this could mean that the space-time sheet along which neutrino arrives would vary from neutrino to neutrino. The simplest possibility is that its length varies and velocity is constant: this does not look totally implausible.

  2. Also the state of neutrino inside space-time sheet could vary from neutrino to neutrino. Classical long ranged Z0 fields are one of the basic predictions of TGD and in the earlier posting I proposed that neutrino feels classical Z0 magnetic field and arrives along cyclotron orbit. This would give a discrete spectrum of arrival velocities as

    v= c#/(1+ n×hbar× QZ(ν)gZBZ/mν)1/2

    with n=0,1,2,... For some value of n the velocity would become sub-luminal. If hbar is large enough, the discrete spectrum could be seen in the arrival times. This spectrum does not however look an attractive explanation for the jitter for which spectrum seems to be above minimum value rather than below maximum value.

As I have explained, TGD explanation is unique in that it requires no tachyons and thus no breaking of causality. The solution is not any ad hoc proposal to explain one particular anomaly but one of the many outcomes of a theory solving a deep conceptual problem plaguing general relativity due to the loss of Poincare invariance. TGD fuses the good aspects of special and general relativities and leads to a unification of fundamental interactions. The basically new thing is the notion sub-manifold gravity: basic principles of special and general relativities remain as such. If effective neutrino super-luminality is real - as it seems to be- it will mean to TGD what Mickelson-Morley meant for special relativity.

TGD based explanation of effective neutrino super-luminality is discussed in the article Are neutrinos super-luminal?.

P.S. There are reasons to suspect that the mightmare of any scientific dissident could be realized. US government could block websites from public and knowing the situation in Big Science it is easy to guess that scientific dissidents like me having also non-standard views about market economy would belong to the first victims. You can prevent this.

9 Comments:

At 8:42 PM, Anonymous Anonymous said...

Scientists have plans to build a laser so powerful it could boil the fabric of space and, in doing so, possibly reveal extra-dimensions.

In today’s installment of potentially catastrophic science experiments, scientists have plans to create a giant laser that can emit a beam with an amount of energy equivalent to all of the power the Earth receives from the sun combined, reports Richard Gray in the Telegraph. It is believed such a laser will have the ability to rip apart the vacuum of space — literally boil the underlying fabric of the universe.

This veritable death ray won’t be used to further the aspirations of an evil genius — at least, that’s not its purpose. Instead, scientists hope to prove the existence of tiny bits of matter, pairs of molecules known as “ghost particles,” that are believed to hide in the vacuum of space, but have so far been undetectable by any other means. In addition, scientists hope the laser can help prove the existence of other dimensions.

“This laser will be 200 times more powerful than the most powerful lasers that currently exist,” said Professor John Collier, a leader of the project, and director of the UK’s Central Laser Facility. “At this kind of intensity we start to get into unexplored territory as it is an area of physics that we have never been before.”

Dubbed the Extreme Light Infrastructure Ultra-High Field laser, or ELI, the project is expected to be completed within the next 10 years, at a cost of about $1.6 billion. The location for the ELI laser has not yet been decided.

As Gray explains:

The Ultra-High Field laser will be made up of 10 beams…allowing it to produce 200 petawatts of power – more than 100,000 times the power of the world’s combined electricity production – for less than a trillionth of a second.

 
At 8:45 PM, Anonymous Anonymous said...

Instead, scientists hope to prove the existence of tiny bits of matter, pairs of molecules known as “ghost particles,” that are believed to hide in the vacuum of space, but have so far been undetectable by any other means. In addition, scientists hope the laser can help prove the existence of other dimensions.

 
At 8:54 PM, Anonymous Anonymous said...

.

Matti:

I recommend becoming acclimated to Walter Russells theories.

"Every point in the Universe is the gravitative center of a constantly changing potential."

"All direction is curved - All motion is spiral."

 
At 10:17 PM, Blogger Ulla said...

Kea talks of tachyons, and her figure really could be that???? Like a splitting of the speed. From SN1987 was measured antineutrinos, not neutrinos.

 
At 12:35 AM, Anonymous matpitka@luukku.com said...

To Anonymous: my impression is that the laser beam could allow to generate particle pairs from vacuum: electron-positron pairs. This would be as such highly interesting and in zero energy ontology the interpretation would be as a creation of causal diamond (intersection of future and past directed light-cones), a mini-universe containing these pairs. The fabric of space-time would be indeed engineered in quite radical manner.

I do not see how these experiments could cause any cosmic catastrophes. This impression is a side effect of hype. Remember blackholes at LHC devouring the entire Earth?

To Ulla:

Yes, Kea talks about tachyons. I cannot understand what she means and I am unable to find any connection of her figure with tachyons.

 
At 6:43 PM, Anonymous Orwin said...

The 'splitting' of velocities is characteristic of Lamb waves, sound propagating in surfaces. Analysis requires seven dimensions, the original sighting of 'higher dimensions', which lead the Victorian spiritualists into endless speculation about 'vibrations'.

And the Theosophical Research Society into engagement with the seven chakras of Tantra, which they found morphing through history. Ken Wilber's program follows, and remains internal to language and historical meaning.

 
At 7:04 PM, Anonymous Orwin said...

Derivation of Poincare Invariance from general quantum field theory
C.D. Froggatt, H.B. Nielsen
Annalen der Physik, Volume 14, Issue 1-3 , Pages 115 - 147 (2005)
"we essentially obtain quantum electrodynamics in just 3 + 1 dimensions from our model. The only remaining flaw in the model is that the photon and the various Weyl fermions turn out to have their own separate metric tensors."

⁠http://www.arxiv.org/abs/hep-th/0501149⁠
⁠http://www3.interscience.wiley.com/c...84430/ABSTRACT⁠

 
At 7:27 PM, Anonymous matpitka@luukku.com said...

This is a big flaw;-). I looked the paper and I must say that I am allergic for this emergent space-time stuff. Already the first equation makes a lot of ad hoc assumptions challenging the tolerance of the reader.

The notion of emergent space-time derives from M-theory. They had somehow get 4-D space-time. Kaluza-Klein picture with spontaneous compactification was the first hope but failed: Calabi-Yau's remained as a living fossil from this period.

After than the hope was that 3-branes could give space-time. The dream is that one could somehow really get them from string theory as "non-perturbative effect" (synonym for "I do not have a slightest idea about how"). This is just day dreaming of theoreticians too old to begin from scratch again.

When applied in proper context, the idea of the article is excellent. If the system is complex enough one can describe it as random- say thermodynamically. In TGD examples are p-adic thermodynamics and the model for CKM matrix and topological mixing of fermion families.

I do not however believe that this idea would apply to the laws of physics: my vision is just the opposite. The mere mathematical existence of "world of classical worlds" dictates it geometry and therefore laws of physics. This forces infinite-D symmetries as various Kac-Moody type symmetries and symplectic symmetries.

 
At 12:33 AM, Blogger Ulla said...

http://news.yahoo.com/physics-atom-smashers-antimatter-surprise-232412931.html

http://blogs.discovermagazine.com/cosmicvariance/2011/11/16/guest-post-tom-banks-on-probability-and-quantum-mechanics/

 

Post a Comment

<< Home