SERN的研究有重大进展，机关的阴谋又迈进一步

殒海熬亭

转自动漫123
SERN（这条世界线上叫CERN）于9月23日公开了一项实验结果，他们成功使得中微子超越光速，这是时间机器理论研究的一个重要基垫。首先是科学网的报道

引用
　　科学网(kexue.com)讯 北京时间9月23日消息，在欧洲核子研究中心（CERN），科学家们发现了意料之外的现象——被送往732公里之外Gran Sasso实验室的中微子们比光速快了60纳秒到达。用更大的数字来表示，就是光速299,792,458米/秒，而他们在实验中检测到中微子速度是299,799,953米/秒。
　　这一数值的实验误差是10纳秒，换言之，基本上，比光速快是没错的！虽然只是0.0025%的区别，但这一挑战狭义相对论光速不变原理基石的发现一旦得到证实，将会给物理学界带来巨大的变化。
　　突破光速不是儿戏，科学家们慎之又慎的反复测验。研究发言人Antonio Ereditato博士表示他们已经反复检验过数据和设备，但就是无法发现有什么错误，只好选择将这一结果公开，期待得到更多研究机构的重复实验和验证，以其最终得知这究竟是不是一个事实。
　　尽管以一般的实验准则来说，他们的数据早已足够坚实。Antonio Ereditato博士说，为了检验μ中微子与τ中微子的转换，他们在三年的时间中总共进行了一万五千次中微子发射，而每一次的结果都指向同一事实：这些中微子，就是要比光速快。
　　爱因斯坦理论中最广为人知的说法之一就是“光速无法超越”，这也确实是现代物理中最基本的基础之一。然而，这次不知道爱氏理论是否仍然能够坚而不破。

项目介绍（正式开始试验以前的）

引用
     西欧中心的中微子束流到意大利Gran Sasso的项目正在建造中。竣工后，将从西欧中心将高能中微子束流送到730公里以外的意大利地下Gran Sasso实验室，那里将组装OPERA 探测器。预计2005年发送第一批中微子。该实验有包括西欧中心、天朝和十一区在内的12个国家的33个研究机构参加。
     传统上说来，中微子有三种——电子中微子、μ子中微子和τ中微子（取决于它们的伴粒子）。这些中微子的类型假设是不变的，所以与μ子一道产生的中微子应该永远是μ子中微子。
     但是，监视大气中由宇宙线产生的中微子到达的主要实验提供了中微子不是不变的强烈迹象。为解释所观测到的这一行为，即一些出发的μ子中微子途中可能转变为τ中微子，并为使看到这样的中微子“振荡”的机会达到最大程度，实验需要一个长“基线”，本项目就是基于西欧中心和Gran Sasso 实验室之间730公里的距离。因为这些振荡，离开西欧中心时，出发的μ子的中微子束在到达Gran Sasso时含有τ中微子。它们相互作用时，这些τ中微子可产生极不稳定的τ轻子，这些τ轻子在中微子相互作用点1毫米内衰变。识别这些极小的衰变过程是OPERA实验的主要目标。

然后是SERN发出的邮件

引用
To:

cern-personnel (CERN Personnel - Members and Associate Members)

23 September 2011 08:11 (注：CERN时间)

CERN Press Release: OPERA experiment reports anomaly in flight time of neutrinos from CERN to Gran Sasso

Dear Colleagues,
As usual, I am sending you this CERN press release before we issue it to the media. Unusually this time, however, I feel that it needs a few words of introduction. The OPERA collaboration has measured the time of flight of neutrinos sent from CERN to Gran Sasso, along with the distance they cover. These measurements appear to show that the neutrinos are travelling faster than light. When a collaboration makes a surprising observation such as this and is unable to account for it, the ethics of Science demand that the results be made available to a wider community, to seek scrutiny and to encourage independent experiments. That's why when the spokesperson of the OPERA collaboration asked me whether they could hold a seminar here, I said yes. Given the potential impact of such a measurement, I felt it important for CERN formally to make its position clear. That's the reason for the cautiously worded statement we're sending to the media today.
Best regards,
Rolf Heuer

OPERA experiment reports anomaly in flight time of neutrinos from CERN to Gran Sasso.

Geneva, 23 September 2011. The OPERA experiment, which observes a neutrino beam from CERN 730 km away at Italy’s INFN Gran Sasso Laboratory, will present new results in a seminar at CERN this afternoon at 16:00 CEST. The seminar will be webcast at http://webcast.cern.ch. Journalists wishing to ask questions may do so via twitter using the hash tag #nuquestions, or via the usual CERN press office channels.
The OPERA result is based on the observation of over 15000 neutrino events measured at Gran Sasso, and appears to indicate that the neutrinos travel at a velocity 20 parts per million above the speed of light, nature’s cosmic speed limit. Given the potential far-reaching consequences of such a result, independent measurements are needed before the effect can either be refuted or firmly established. This is why the OPERA collaboration has decided to open the result to broader scrutiny. The collaboration’s result is available on the preprint server arxiv.org http://arxiv.org/abs/1109.4897.
The OPERA measurement is at odds with well-established laws of nature, though science frequently progresses by overthrowing the established paradigms. For this reason, many searches have been made for deviations from Einstein’s theory of relativity, so far not finding any such evidence. The strong constraints arising from these observations make an interpretation of the OPERA measurement in terms of modification of Einstein’s theory unlikely, and give further strong reason to seek new independent measurements.
"This result comes as a complete surprise,” said OPERA spokesperson, Antonio Ereditato of the University of Bern. “After many months of studies and cross checks we have not found any instrumental effect that could explain the result of the measurement. While OPERA researchers will continue their studies, we are also looking forward to independent measurements to fully assess the nature of this observation.”
"When an experiment finds an apparently unbelievable result and can find no artefact of the measurement to account for it, it’s normal procedure to invite broader scrutiny, and this is exactly what the OPERA collaboration is doing, it’s good scientific practice,” said CERN Research Director Sergio Bertolucci. “If this measurement is confirmed, it might change our view of physics, but we need to be sure that there are no other, more mundane, explanations. That will require independent measurements.
In order to perform this study, the OPERA Collaboration teamed up with experts in metrology from CERN and other institutions to perform a series of high precision measurements of the distance between the source and the detector, and of the neutrinos’ time of flight. The distance between the origin of the neutrino beam and OPERA was measured with an uncertainty of 20 cm over the 730 km travel path. The neutrinos’ time of flight was determined with an accuracy of less than 10 nanoseconds by using sophisticated instruments including advanced GPS systems and atomic clocks. The time response of all elements of the CNGS beam line and of the OPERA detector has also been measured with great precision.
"We have established synchronization between CERN and Gran Sasso that gives us nanosecond accuracy, and we’ve measured the distance between the two sites to 20 centimetres,” said Dario Autiero, the CNRS researcher who will give this afternoon’s seminar. “Although our measurements have low systematic uncertainty and high statistical accuracy, and we place great confidence in our results, we’re looking forward to comparing them with those from other experiments."
"The potential impact on science is too large to draw immediate conclusions or attempt physics interpretations. My first reaction is that the neutrino is still surprising us with its mysteries.” said Ereditato. “Today’s seminar is intended to invite scrutiny from the broader particle physics community.”
The OPERA experiment was inaugurated in 2006, with the main goal of studying the rare transformation (oscillation) of muon neutrinos into tau neutrinos. One first such event was observed in 2010, proving the unique ability of the experiment in the detection of the elusive signal of tau neutrinos.

实验数据

引用
Measurement of the neutrino velocity with the OPERA detector in the CNGS beam
Authors: OPERA
Abstract: 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 (60.7 \pm 6.9 (stat.) \pm 7.4 (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 = (2.48 \pm 0.28 (stat.) \pm 0.30 (sys.)) \times 10-5.

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桜

= =时间机器研究有戏了？

spiritboy11750

听说是有国家在研究...但是有成果还早呢