| 单词 | meson |
| 例句 | Such combinations make up the particles known as mesons, which are unstable because the quark and antiquark can annihilate each other, producing electrons and other particles. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Within days, he had remedied the experimental shortcomings that had prevented Lawrence from producing mesons, and before the end of the month had captured tracks of the first artificial mesons ever seen. Big Science 2015-07-07T00:00:00Z Yet through 1947, Lawrence’s attempts to capture an artificially produced meson on photographic film were unavailing. Big Science 2015-07-07T00:00:00Z For the better part of a year, the Rad Lab had been trying to produce mesons, the most sought- after and elusive subatomic particles of the moment, in the restored 184- inch cyclotron. Big Science 2015-07-07T00:00:00Z Keep splitting and you get neutrinos and quarks and muons and antiquarks and mesons—on and on and on, smaller and smaller and smaller. Things Not Seen 2002-01-01T00:00:00Z And according to his index, Mr. Monk gives the meson its due on at least 21 out of 695 pages. Books of The Times: ‘Robert Oppenheimer: A Life Inside the Center,’ by Ray Monk 2013-05-27T21:46:27Z Once you’ve got that system in mind, hang on: Still races off to illustrate the Big Bang, the birth of stars, electromagnetism and all matter of fantastical-sounding phenomenon, like mesons and beta decay. Review | Everything explained — in photos, cartoons and Legos 2017-12-27T05:00:00Z One of these bizarre particles, called the phi meson, sits at the heart of these latest befuddling results. ‘Unbelievable’ Spinning Particles Probe Nature’s Most Mysterious Force 2023-02-02T05:00:00Z When collisions of protons produced massive particles called B mesons, these quickly decayed. Hint of Crack in Standard Model Vanishes in LHC Data 2022-12-22T05:00:00Z The Belle II experiment in Japan, which is dedicated to investigating B meson decays, is also gathering new evidence. Rule-Breaking Particles Pop Up in Experiments around the World 2022-11-14T05:00:00Z Muon neutrinos fly from the decays of fleeting particles called pi-plus mesons, which can be produced by smashing a beam of protons into a target. Showdown: Two huge neutrino detectors will vie to probe matter’s origins 2022-09-28T04:00:00Z Mesons are hadrons that can decay to leptons and leave no hadrons, which implies that mesons are not conserved in number. College Physics for AP Courses 2015-08-12T00:00:00Z Unlike protons and neutrons, which are made of three quarks, mesons are made of one quark and one antiquark. ‘Unbelievable’ Spinning Particles Probe Nature’s Most Mysterious Force 2023-02-02T05:00:00Z The most frequent decay pattern produced another type of meson, called a kaon, plus pairs of particles and their antiparticles—either an electron and a positron or a muon and an antimuon. Hint of Crack in Standard Model Vanishes in LHC Data 2022-12-22T05:00:00Z As a consequence, B mesons should produce electrons and muons at rates that are nearly equal. Muon Results Throw Physicists’ Best Theories into Confusion 2021-04-29T04:00:00Z So B mesons should decay to a kaon and two muons at the same rate at which they decay to a kaon and two electrons. Unexplained Results Intrigue Physicists at World’s Largest Particle Collider 2021-03-25T04:00:00Z All mesons, such as the pions shown here, are composed of a quark-antiquark pair. College Physics for AP Courses 2015-08-12T00:00:00Z Quarks come in six different “flavors,” and the phi meson is made of a quark-antiquark pair with the same flavor, called strange. ‘Unbelievable’ Spinning Particles Probe Nature’s Most Mysterious Force 2023-02-02T05:00:00Z A number of related measurements on B mesons also revealed deviations from theoretical predictions based on the standard model of particle physics. Hint of Crack in Standard Model Vanishes in LHC Data 2022-12-22T05:00:00Z The B mesons are not decaying in the way the model says they should: instead of producing electrons and muons at the same rate, nature appears to favour the route that ends with electrons. Cern experiment hints at new force of nature 2021-03-23T04:00:00Z Yet LHCb is seeing a difference in this rare beauty decay: B mesons seem to decay to muons 15 percent less often than they do to electrons. Unexplained Results Intrigue Physicists at World’s Largest Particle Collider 2021-03-25T04:00:00Z Originally, three quark types—or flavors—were proposed to account for the then-known mesons and baryons. College Physics for AP Courses 2015-08-12T00:00:00Z The scientists wanted to know if, in the instant after collision, the swirling momentum of the quark-gluon soup could cause phi mesons to spin along with it, like a beach ball in a whirlpool. ‘Unbelievable’ Spinning Particles Probe Nature’s Most Mysterious Force 2023-02-02T05:00:00Z This could have pointed to the existence of previously unseen elementary particles that affect the decay of B mesons. Hint of Crack in Standard Model Vanishes in LHC Data 2022-12-22T05:00:00Z Despite the uncertainties over this particular result, Parkes said when combined with other results on B mesons, the case for something unusual happening became more convincing. Cern experiment hints at new force of nature 2021-03-23T04:00:00Z Scientists concluded that these mesons must be the same particle, which is able to decay into two or three pions. Detection of a strange particle 2019-11-03T04:00:00Z All mesons have integral spin while all baryons have half-integral spin. College Physics for AP Courses 2015-08-12T00:00:00Z The phi mesons were indeed spinning along with the quark-gluon soup but in ways very far from theoretical predictions. ‘Unbelievable’ Spinning Particles Probe Nature’s Most Mysterious Force 2023-02-02T05:00:00Z In this "molecular" picture a pentaquark is a three-quark baryon stuck to a two-quark meson the same way that protons and neutrons bind in a nucleus—by exchanging short-lived pi mesons. Exotic particles called pentaquarks may be less weird than previously thought 2019-06-05T04:00:00Z Researchers saw the predicted behaviour — which fits with the standard model of particle physics — in decays of particles called D mesons in the LHCb experiment at CERN, Europe’s particle-physics laboratory near Geneva, Switzerland. Baby monkey, antimatter puzzle and Alzheimer’s disappointment 2019-03-26T04:00:00Z In that same year, physicists proposed a model12,13 to explain all of the known mesons and baryons — a family that includes protons, neutrons and the Λ0 particle. Detection of a strange particle 2019-11-03T04:00:00Z Therefore, mesons should be made up of an even number of quarks while baryons need to be made up of an odd number of quarks. College Physics for AP Courses 2015-08-12T00:00:00Z Here’s how those predictions work: Phi mesons can spin in one of three directions. ‘Unbelievable’ Spinning Particles Probe Nature’s Most Mysterious Force 2023-02-02T05:00:00Z That suggests each pentaquark is just a baryon bound to a meson, with a tiny bit of mass taken up in binding energy. Exotic particles called pentaquarks may be less weird than previously thought 2019-06-05T04:00:00Z CP violation had been observed in particles called kaons and B mesons, which are each made up of two quark particles. Baby monkey, antimatter puzzle and Alzheimer’s disappointment 2019-03-26T04:00:00Z Physicists observed the broken symmetry — which researchers had predicted and which fits with the standard model of particle physics — in the decays of particles called D mesons. Daily briefing: Six easy time-management tips for scientists 2019-03-21T04:00:00Z These two mesons are different mixtures, but each is its own antiparticle, as indicated by its quark composition. College Physics for AP Courses 2015-08-12T00:00:00Z Even a small deviation from those one-third odds would indicate that the phi meson’s spin had been influenced by the circling momentum around it. ‘Unbelievable’ Spinning Particles Probe Nature’s Most Mysterious Force 2023-02-02T05:00:00Z That's because packaging the charm quark in the baryon and anticharm quark in the meson separates them, keeping them from annihilating each other. Exotic particles called pentaquarks may be less weird than previously thought 2019-06-05T04:00:00Z But, until now, it hadn’t been seen in a particle that includes the ‘charm’ flavour of quark, such as a D meson. Baby monkey, antimatter puzzle and Alzheimer’s disappointment 2019-03-26T04:00:00Z The effect in D mesons is so small that it is technically extremely difficult to measure, says Shears. Physicists see new difference between matter and antimatter 2019-03-20T04:00:00Z These two mesons are different mixtures, but each is its own antiparticle, as indicated by its quark composition. College Physics for AP Courses 2015-08-12T00:00:00Z The theorists had missed something big: Electromagnetic fields may not be strong enough to affect the phi mesons’ spin, but what about fields generated by the strong force? ‘Unbelievable’ Spinning Particles Probe Nature’s Most Mysterious Force 2023-02-02T05:00:00Z Take for instance particles known as mesons, which are made of one quark and one anti-quark. Why Is There More Matter Than Antimatter? 2019-03-21T04:00:00Z The LHCb experiment looks for that imbalance in the behavior of B mesons, which are often sprayed from the proton collisions. It’s Intermission for the Large Hadron Collider 2018-12-21T05:00:00Z His discovery of the long-lived neutral kaon meson helped to home in on one of the great mysteries of physics. Leon Lederman (1922-2018) 2018-11-04T04:00:00Z These two mesons are different mixtures, but each is its own antiparticle, as indicated by its quark composition. College Physics for AP Courses 2015-08-12T00:00:00Z This is what Wang and his colleagues have proposed in a recent preprint study: the movement of the phi mesons themselves creates a strong force field whose minuscule fluctuations are affecting mesons’ spin polarization. ‘Unbelievable’ Spinning Particles Probe Nature’s Most Mysterious Force 2023-02-02T05:00:00Z Dr. Richter called his particle, known to physicists as a meson, by the Greek letter “psi”; Ting’s particle was dubbed “J.” Burton Richter, Nobel Prize-winning physicist, dies at 87 2018-07-21T04:00:00Z The “b” stands for beauty — and for the B meson, a subatomic particle that is crucial to the experiment. It’s Intermission for the Large Hadron Collider 2018-12-21T05:00:00Z Hadrons fall into two broad families: mesons, exotic particles with one quark and one antiquark; and baryons, particles composed of three quarks. LHC Physicists Unveil a Charming New Particle 2017-07-07T04:00:00Z The discovery of the J / ψ meson had such a rejuvenating effect on quark theory that it is now called the November Revolution. College Physics for AP Courses 2015-08-12T00:00:00Z To test the new hypothesis, the Brookhaven scientists plan to re-create their experiment with a different meson, called the J/psi meson, which is made of a quark-antiquark pair of a different favor. ‘Unbelievable’ Spinning Particles Probe Nature’s Most Mysterious Force 2023-02-02T05:00:00Z Together, they were known as the J/psi meson. Burton Richter, Nobel Prize-winning physicist, dies at 87 2018-07-21T04:00:00Z B mesons have an exotic property: They flicker back and forth between being matter and antimatter. It’s Intermission for the Large Hadron Collider 2018-12-21T05:00:00Z Physicists make precise measurements of how B mesons decay into known particles, searching for tiny discrepancies that would reveal the influence of hypothetical heavy particles that appear fleetingly but leave their mark. Rare particle decays offer hope of new physics 2017-06-06T04:00:00Z Other mesons containing bottom quarks have since been observed. College Physics for AP Courses 2015-08-12T00:00:00Z If phi mesons can add to the strong force field, their cousins should, too—and J/psi mesons’ spin polarizations should be similarly impacted by the resulting fluctuations. ‘Unbelievable’ Spinning Particles Probe Nature’s Most Mysterious Force 2023-02-02T05:00:00Z In 1976, Ting shared the Nobel Prize in Physics for discovering a subatomic particle called the J/Psi meson. Giant space magnet may have trapped antihelium, raising idea of lingering pools of antimatter in the cosmos 2017-04-19T04:00:00Z Hicheur himself is giving a talk on the properties of a kind of particle called a charmed B meson. LHC scientists bring conference to deported physicist 2016-12-12T05:00:00Z Excitement is growing about the strange and subtle behaviour of particles called B mesons, whose properties make them ripe for observing the effects of new physics. Rare particle decays offer hope of new physics 2017-06-06T04:00:00Z The analogy of the colors combining to white is used to explain why baryons are made of three quarks, why mesons are a quark and an antiquark, and why we cannot isolate a single quark. College Physics for AP Courses 2015-08-12T00:00:00Z The unexpected events — anomalous decays of neutral K mesons — made themselves known gradually. James Cronin, Nobel laureate who overturned long-accepted beliefs about the fundamental symmetry of laws of physics , dies at 84 2016-08-28T04:00:00Z Both types of collisions sometimes result in B mesons, however, allowing each to measure the end products when the unstable mesons decay. Two Accelerators Find Particles that May Break Known Laws of Physics 2015-09-09T04:00:00Z Last year, LHCb found a similar bias, with a significance of 2.6 sigma, in decays of another type of B meson, this time a preference to decay into electrons rather than muons. LHC signal hints at cracks in physics' standard model 2015-09-02T04:00:00Z Researchers also observed the rare decay of a particle known as the strange B meson, the subject of a 30-year quest. Physicists Restart Souped-Up Hadron Collider 2015-07-26T04:00:00Z A meson must have a primary color and its anticolor, also producing white. College Physics for AP Courses 2015-08-12T00:00:00Z They theorised that key properties of the particles known as baryons and mesons were best explained if they were in turn made up of other constituent particles. Hadron Collider discovers new particle - BBC News 2015-07-14T04:00:00Z In all B meson decays, at one point a heavier “virtual” particle is created and then quickly disappears—a strange phenomenon allowed by quantum mechanics. Two Accelerators Find Particles that May Break Known Laws of Physics 2015-09-09T04:00:00Z The standard model predicts that the and decays are very rare, with about four of the former occurring for every billion mesons produced, and one of the latter occurring for every ten billion B0 mesons1. Observation of the rare Bs0 →µ+µ− decay from the combined analysis of CMS and LHCb data : Nature : Nature Publishing Group 2015-05-12T04:00:00Z Each experiment found evidence for the decay of neutral B mesons, but the researchers were only able to observe it at a high statistical significance when combining their databases. Large Hadron Collider captures incredibly rare particle decay for the first time 2015-05-13T04:00:00Z The color scheme is intentionally devised to explain why baryons have three quarks and mesons have a quark and an antiquark. College Physics for AP Courses 2015-08-12T00:00:00Z “We did our own thing, and no one came around and asked any questions. We just sat there and watched the mesons go by.” Val Fitch, Who Discovered Universe to Be Out of Balance, Is Dead at 91 2015-02-10T05:00:00Z In April the LHC started running collisions at higher energy, which for LHCb translates to more B mesons produced, and more chances to look for the discrepancy. Two Accelerators Find Particles that May Break Known Laws of Physics 2015-09-09T04:00:00Z All these background decays, when reconstructed as a dimuon final state, have invariant masses that are lower than the masses of the B0 and mesons, because they are missing one of the original decay particles. Observation of the rare Bs0 →µ+µ− decay from the combined analysis of CMS and LHCb data : Nature : Nature Publishing Group 2015-05-12T04:00:00Z Here scientists found a particle called a Bs meson decaying into two muons for the first time. Ultra-rare decay confirmed in LHC 2013-07-24T13:50:50Z Can an unstable baryon decay into a meson, leaving no other baryon? College Physics for AP Courses 2015-08-12T00:00:00Z In about 50 cases, the mesons decayed in a way that was forbidden if nature did not discriminate between matter and antimatter. Val Fitch, Who Discovered Universe to Be Out of Balance, Is Dead at 91 2015-02-10T05:00:00Z They observed a particle called a Bs meson decaying into two muons for the first time. Ultra-rare decay confirmed in LHC 2013-07-24T12:30:28Z To compute the signal branching fractions, the numbers of and B0 mesons that are produced, as well as the numbers of those that have decayed into a dimuon pair, are needed. Observation of the rare Bs0 →µ+µ− decay from the combined analysis of CMS and LHCb data : Nature : Nature Publishing Group 2015-05-12T04:00:00Z He details Oppenheimer's scientific work, including his obsessive quest to understand mesons and the strong nuclear force, and the physics of neutron stars and black holes. Summer books 2013-07-11T15:50:23.720Z The decay of one of the neutral K -mesons, for example, preferentially creates more matter than antimatter. College Physics for AP Courses 2015-08-12T00:00:00Z Last week, the LHCb team in the decay of particles called Bs mesons - but still not nearly enough to explain the matter mystery. Cern closes in on antigravity answer 2013-04-30T17:38:15Z The observations at LHCb and CMS were so rare that Bs mesons only decayed into two muons about three times in every billion collisions. Ultra-rare decay confirmed in LHC 2013-07-24T12:30:28Z The corresponding decay of the B0 meson, where a d quark replaces the s quark, is even more CKM suppressed because it requires a jump across two quark generations rather than just one. Observation of the rare Bs0 →µ+µ− decay from the combined analysis of CMS and LHCb data : Nature : Nature Publishing Group 2015-05-12T04:00:00Z A third type, D0 mesons, showed , but more recent studies suggest those hints were mistaken. Antimatter mystery rolls on at LHC 2013-04-24T12:55:06Z The decay of one type of K -meson is cited as evidence that nature favors matter over antimatter. College Physics for AP Courses 2015-08-12T00:00:00Z The LHCb experiment has for the first time observed decays of particles known as Bs mesons that preferentially end up as matter, rather than antimatter. Antimatter mystery rolls on at LHC 2013-04-24T12:55:06Z The team clocked an extremely rare process in which a BS meson — composed of a strange quark and a bottom antiquark — decays into a muon–antimuon pair. Truant particles turn the screw on supersymmetry 2012-11-21T18:20:32.003Z Since CMS is designed to look for much heavier objects than mesons, it selects events that contain muons with higher transverse momenta than those selected by LHCb. Observation of the rare Bs0 →µ+µ− decay from the combined analysis of CMS and LHCb data : Nature : Nature Publishing Group 2015-05-12T04:00:00Z They have measured the decay between a particle known as a Bs meson into two particles known as muons. Supersymmetry theory dealt a blow 2012-11-12T13:30:34Z Since mesons are composed of a quark and an antiquark, is it surprising that they would preferentially decay to one type over another? College Physics for AP Courses 2015-08-12T00:00:00Z The new work considered the fourth: Bs mesons. Antimatter mystery rolls on at LHC 2013-04-24T12:55:06Z Only one in roughly every 300 million B mesons is predicted to do this, because the decay relies on a highly unlikely chain of events involving the fleeting appearance of virtual particles. Truant particles turn the screw on supersymmetry 2012-11-21T18:20:32.003Z The branching fractions are determined from the observed numbers, efficiency-corrected, of mesons that decay into two muons and the total numbers of mesons produced. Observation of the rare Bs0 →µ+µ− decay from the combined analysis of CMS and LHCb data : Nature : Nature Publishing Group 2015-05-12T04:00:00Z It is the first time that this decay has ever been observed, and the team has calculated that for every billion times that the Bs meson decays it only decays in this way three times. Supersymmetry theory dealt a blow 2012-11-12T13:30:34Z There are eight types of gluons proposed by scientists, and their existence is indicated by meson exchange in the nuclei of atoms. College Physics for AP Courses 2015-08-12T00:00:00Z Even fast mu mesons, which ionize only lightly, made visible tracks in the superheated liquid. Physics Nobelists Tell of Their Prize-Winning Discoveries 2012-06-28T12:45:02.607Z Well, studying mesons and bosons of this type of particle will help us to better understand the Strong force. New Particle Discovered At The Large Hadron Collider 2011-12-27T07:12:55Z The ratio of the hadronization probability into B+ and mesons and the branching fraction of the normalization channel B+J/ψK+ are common, constrained parameters. Observation of the rare Bs0 →µ+µ− decay from the combined analysis of CMS and LHCb data : Nature : Nature Publishing Group 2015-05-12T04:00:00Z The CDF workers looked for decay products, such as electrons, muons, neutrinos and mesons, of these particles. "You're the Top..." [From the Archive] 2011-09-29T17:15:03.417Z A neutral π -meson is a particle that can be created by accelerator beams. College Physics for AP Courses 2015-08-12T00:00:00Z The mesons in turn decay into neutrinos, which then disappear into the Earth in the direction of Gran Sasso. News Analysis: After Report on Speed, a Rush of Scrutiny 2011-09-24T01:31:10Z The proton-antiproton collisions in turn create a number of different particles, and the team operating the Tevatron's DZero detector first noticed a discrepancy in the decay of particles called B mesons. Antimatter mystery gains ground 2011-07-01T16:42:56Z Instead of comparing the times required for emission of quanta, let us compare the actual strength of the electrostatic and gravitational forces between a pair of middleweight particles, say pi mesons. Gravity, by George Gamow [Special Archive Article] 2011-03-04T13:45:00.433Z Physicists now want to produce B mesons at rates up to 100 times higher than currently possible to look for signs of new physics. Italy Funds New Particle Smasher With U.S. Components 2010-12-24T09:14:44Z Suppose the π -meson is at rest and all of the missing mass goes into the muon’s kinetic energy. College Physics for AP Courses 2015-08-12T00:00:00Z When he found a new particle in 1963, he named it the A meson, after his son, Amos Nathaniel, who survives him. Gerson Goldhaber, Particle Physicist, Is Dead at 86 2010-07-26T05:10:00Z When the proton beam hits this target, a shower of mesons is produced. LRL Accelerators The 184-Inch Synchrocyclotron From a hasty glance it appeared a nice place, and we drew up at a spacious meson, facing a pretty plaza, lined by magnificent rows of elms, with a handsome church in front. Los Gringos Or, An Inside View of Mexico and California, with Wanderings in Peru, Chili, and Polynesia Skinny told me, but it was something about meson flow and stuff like that that I didn't understand. We Didn't Do Anything Wrong, Hardly The pions, or π -mesons as they are also called, have masses close to those predicted and feel the strong nuclear force. College Physics for AP Courses 2015-08-12T00:00:00Z We first went to an inn—a meson, as it was called. A Voyage round the World A book for boys These mesons are bent in various directions by the main magnetic field. LRL Accelerators The 184-Inch Synchrocyclotron With a fresh relay of horses, and the sun on the meridian, we left the brightly-painted meson, and continued our journey. Los Gringos Or, An Inside View of Mexico and California, with Wanderings in Peru, Chili, and Polynesia We soon ascertained that they belonged to the American circus company then performing at San Luis, and on telling them who we were, they at once invited us to their meson to supper. The Knickerbocker, or New-York Monthly Magazine, April 1844 Volume 23, Number 4 The division between mesons and baryons is actually based on their observed decay modes and is not strictly associated with their masses. College Physics for AP Courses 2015-08-12T00:00:00Z We put up at a meson, not remarkable for its cleanliness or the luxury of its provisions, and were not sorry to find ourselves once more in our saddles on our way back to Mazatlan. A Voyage round the World A book for boys This meson beam then travels through a hole in the concrete shielding wall into the meson cave. LRL Accelerators The 184-Inch Synchrocyclotron Leaving my compañero at a meson, I swung myself from the saddle, after a twenty-eight leagues ride, within the spacious patio of an American gentleman's house, to whom I was regularly endorsed—Mr. Bissell. Los Gringos Or, An Inside View of Mexico and California, with Wanderings in Peru, Chili, and Polynesia Long ago, it was realized that the nucleonic particles—protons, neutrons, mesons and so on—must have structure of their own. The Answer Such “meson factories” have been used for many years to study the interaction of pions with nuclei and, hence, the strong nuclear force. College Physics for AP Courses 2015-08-12T00:00:00Z Two charming beds were arranged in the little meeting-place in Señor Martinez's own house, and two others, almost as good, were secured for the others of the party, in the little meson of the village. In Indian Mexico (1908) The maximum intensity of this extracted meson beam depends on both the charge and energy desired. LRL Accelerators The 184-Inch Synchrocyclotron There we found the meson; and the landlord handed us the key of our room, which was square, whitewashed, and with a tiled floor. Anahuac : or, Mexico and the Mexicans, Ancient and Modern And listen—men have disappeared on this road—on a certain portion of this road, when Bernardino kept a meson, an inn, and I, his brother-in-law, had coaches and mules for hire. Within the Tides One of them is the D+ meson, which has a single positive charge and a baryon number of zero, also the value of its strangeness, topness, and bottomness. College Physics for AP Courses 2015-08-12T00:00:00Z We found shelter at a sort of a meson, where we could get no supper until nine, or possibly till ten. In Indian Mexico (1908) Most of the experiments study the production and interaction of π mesons. LRL Accelerators The 184-Inch Synchrocyclotron An extracted proton beam from the cyclotron enters the physics cave from the left, striking a polyethylene target and producing π mesons. LRL Accelerators The 184-Inch Synchrocyclotron A beam of these mesons is formed by a series of two bending magnets and three focusing magnets. LRL Accelerators The 184-Inch Synchrocyclotron The meson beam then strikes the liquid hydrogen target. LRL Accelerators The 184-Inch Synchrocyclotron No one of the many dozen visitors who came to see us at the meson was so profoundly impressed as a boy of fourteen, named Ignacio. In Indian Mexico (1908) These mesons materialize only in high-energy nuclear collisions. LRL Accelerators The 184-Inch Synchrocyclotron A few of the incoming mesons scatter, knocking protons out of the liquid hydrogen. LRL Accelerators The 184-Inch Synchrocyclotron Further studies of the interactions of π mesons are made in the meson cave. LRL Accelerators The 184-Inch Synchrocyclotron At the meson we found real rooms and true beds, and decided to stay for the night. In Indian Mexico (1908) I asked a child at the meson to bring me a mug of water. In Indian Mexico (1908) Beams of more than 100,000 mesons per second have been obtained through an aperture 4 � 4 in. in the shielding wall. LRL Accelerators The 184-Inch Synchrocyclotron A brief walk about the village brought to light two cases of small-pox, and, on returning to the meson, we were charmed to find a third one in the building itself. In Indian Mexico (1908) As it was now darkening we hurried to the meson of the village. In Indian Mexico (1908) The latter part of the road, after Cheran was once in sight, seemed hopelessly long, but a little before ten o'clock we pulled up at the meson. In Indian Mexico (1908) After a long climb, we descended into a valley in which lies Tangancicuaro, a large town with a plaza full of fine, great trees, where we ate at a quaint little meson. In Indian Mexico (1908) Other experiments measure the energy and direction of emission of π mesons from a target. LRL Accelerators The 184-Inch Synchrocyclotron Entering the town a little after five, we rode up to the meson of San Francisco, near the little plaza. In Indian Mexico (1908) There was nothing at all to eat at the meson, but on strolling out to the plaza we found some Indian women selling atole and bread. In Indian Mexico (1908) |
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