一束质子撞击在一个固定靶上,制造出一群散射而出,且在几分之一秒之后就会衰变成中微子的介子。
A bunch of protons smash into a fixed target, creating a horde of scattered mesons, which last for fractions of a second before decaying into neutrinos.
这个方程在描述没有自旋的粒子——比如某些介子——具有一定价值,但它对电子完全不适用。
This equation is of some value for describing particles without spin-certain kinds of mesons-but does not apply at all to the electron.
紧随其后的就是中子的发现,证实了卢瑟福几年前的假设,而之后则是中微子和各种介子被发现。
That was followed closely by the discovery of the neutron, confirming Rutherford's hypothesis of several years earlier, and afterwards the neutrino and various mesons were discovered.
12个粒子汇合与一个原子核里,连续不断的,叫做memo-ons的介子的交换给它作用力。
The 312 particles are held together in a nucleus by a force that involves the continuous exchange of meson-like particles called memo-ons.
中微子可以在我们所知的3个已经观察到的类型(电子,μ介子和τ中微子)之间来回切换,OPERA最初的设计是用来检测这些切换的。
Neutrinos are known to switch back and forth between their three observed types (electron, muon and tau neutrinos), and OPERA was originally designed to detect these shifts.
一种微粒的物理质量越大,就越需要更多的能量来证实其存在.于是,物理学者们有了建造一套机器设备的愿望,这套机器会比费密研究所的加速器的功能还要强大.但是在陈旧的重负荷机器的能量范围仍然会存在实际物理质量轻的西格斯介子.
Hence the desire of physicists to build amore powerful machine than Fermilab's Tevatron. But a really light Higgs mightbe within the old workhorse's energy range.
“过渡物体”包括阿莉萨•安底拉斯克的两个优雅模型,它们是一个名为“介子发射”的设计项目的一部分,这个项目涉及了组成夸克的亚原子粒子介子。
"Transitory Objects" includes two elegant models from Alisa Andrasek that are part of a design project called "Mesonic Emission," a reference to mesons, subatomic particles composed of quarks.
而K中介子能被任何质子衰变探测仪探测到,比如日本的超级神冈探测器(精度最高)。
And that kaon could be detected by any machine looking for proton decays, namely Japan's SuperKamiokande detector (pictured top).
在这样的深度(实验)将有助于减少宇宙射线中的渺子介子造成的背景信号。
Going this deep would help reduce the background signals from cosmic ray muon particles.
大型强子对撞机是同样道理。庞大的实验场横跨两个国家,但研究的亚原子粒子(重子和介子)却微小至极。
Such is the case with the Large Hadron Collider (LHC), an experiment so grand that it spans two countries in its quest for subatomic particles so tiny that they are literally almost nothing.
毫无疑问,发现希格斯介子是非常重要的。
这个方程在描述没有自旋的粒子——比如某些介子——具有一定价值,但它对电子完全不适用。
This equation is of some value for describing particles without spin -certain kinds of mesons-but does not apply at all to the electron.
玻色子包括介子、偶质量数的原子核以及体现量子场论中的场所需要的粒子。
Bosons include mesons, nuclei of even mass number, and the particles required to embody the fields of quantum field theory.
无论如何,μ介子氢的兰姆位移更加依赖于质子的半径,因为相对电子更加重的μ介子靠近或者时不时进入质子本身的时间也更多。
However, in muonic hydrogen the Lamb shift is much more dependent on the proton radius because the much heavier muon spends more time very near to – and often within – the proton itself.
要求对称波函数的粒子,如介子,叫做玻色子。
Particles, such as pi-mesons, requiring symmetric wave functions are called bosons .
莱德和哲博士设计出一种粒子加速器,利用另一种亚原子粒子n介子作为中介,从而实现更优的方案。
Dr Learned and Dr Zee have come up with a design for a particle accelerator that would do the job a good deal more modestly, using another type of subatomic particle, the pion, as an intermediary.
这个节日起源于春秋战国时期介子推的故事。
I know this festival came from the story about Jie Zitui in the Spring and Autumn period./
当它到达时,射线中的某些介子中微子会转变成电子中微子。
When it arrives, some of the muon neutrinos in it will have transformed themselves into electron neutrinos.
Turner解释说,能否?发现一种叫希格斯介子(Higgs boson)的能够产生质量的微粒(mass-inducing particle),仍然是标准模型将要面对的下一个重大考验。
Turner explained that discovering a mass-inducing particle, called the Higgs boson, remains the next big test for the standard model.
这次实验,第一次记录下来的是一个介子,它是由一个反美夸克( 美夸克的反粒子)和一个上夸克(组成质子和中子的普通夸克之一)所组成。
This first recorded particle is a meson composed of an anti-beauty quark – the beauty quark's antiparticle – and an up quark – one of the two common quarks that make up protons and neutrons.
介子的两体非轻子衰变过程是粒子物理中一个很重要的研究课题,任何理论上的突破都会引起广泛的关注。
Studying the non-leptonic decay of B meson is an important task in particle physics, and any breakthrough in theory may take new blood to this field.
进一步的工作需要扩展这个新的势对重介子其它性质和重子性质的研究,以便检验这个势的可靠性。
Further work is needed to extend this new potential to investigate other properties of heavy mesons and the properties of baryons so as to test the reliability of this potential.
几个不平等已为人所知,包括成为B -介子和K -介子,但是他们还不足以说明周遭巨量的物质。
A few inequalities are known, involving particles called B-mesons and K-mesons, but they are insufficient to explain the amount of matter around.
我们研究了重离子碰撞中的奇异介子产生。
Strange meson production in heavy ion collisions has been studied.
晋文公归国为君后,分封群臣时却忘记了介子推。
King Wen of Jin returned after being ministers, he forgets the meson to push.
淡水珍珠介指,小额批发促销,介子介子,起批100只,欢迎订货!
Freshwater pearl ring, small wholesale promotions, meson meson, from 100 approved, welcome to order!
今天说她介子掉进侧所里,哭着和我说。
Said today that the meson she fell into the side, crying and I said.
比如几个已知的物质,包括B -介子和K介子颗粒,它们与各处反物质的数量就不相等,但是,仅凭这些个别现象又无法完全解释其它物质数量不等的原因。
A few inequalities are known, involving particles called B-mesons and K-mesons, but they are insufficient to explain the amount of matter around.
春秋时代,晋国公子重耳逃亡在外,生活艰苦,跟随他的介子推不惜从自己的腿上割下一块肉让他充饥。
In the spring and autumn period, jin prince chong 'er is a fugitive, hard life, with his jie zitui willing to cut a piece of meat from his own leg let him.
但介子推离开藏到深山里去了,再也没有人能够找到他。
But Jie Zitui left them and went deep into the mountains, so no one could find him again.
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