- Paperback: 384 pages
- Publisher: Dutton; 7/28/13 edition (August 27, 2013)
- Language: English
- ISBN-10: 0142180300
- ISBN-13: 978-0142180303
- Product Dimensions: 5.4 x 0.7 x 8 inches
- Shipping Weight: 11.4 ounces (View shipping rates and policies)
- Average Customer Review: 234 customer reviews
- Amazon Best Sellers Rank: #39,271 in Books (See Top 100 in Books)
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The Particle at the End of the Universe: How the Hunt for the Higgs Boson Leads Us to the Edge of a New World 7/28/13 Edition
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When the media announced in early July 2012 that researchers had finally confirmed the existence of the elusive Higgs boson, aka “the God particle,” physicists around the world hailed the discovery as a major scientific breakthrough. To California Institute of Technology researcher Carroll (From Eternity to Here, 2010), the event gave another opportunity to demonstrate what he does best, translating complicated ideas into lay-friendly language. In describing how the Higgs boson was detected after decades of theoretical speculation, Carroll covers a wide swath of science, from the Big Bang to quantum mechanics, as well as the thorny politics behind funding the Large Hadron Collider in Switzerland, where experiments established the particle’s existence. Along with an overview of abstract concepts like supersymmetry, Carroll more lightheartedly explains why Hollywood loves science and why the world wasn’t likely to end if the collider inadvertently created a mini-black-hole. A first-rate physics guide that enlarges our understanding of the universe we live in. --Carl Hays --This text refers to the Hardcover edition.
“The science is authoritative, yet bold and lively. The narrative is richly documented, yet full of human drama. Carroll’s saga pulls you aboard a modern voyage of discovery.”
—Frank Wilczek, Nobel Laureate, author of The Lightness of Being
“In this superb book, Sean Carroll provides a fascinating and lucid look at the most mysterious and important particle in nature, and the experiment that revealed it. Anyone with an interest in physics should read this, and join him in examining the new worlds of physics to which this discovery may lead.”
—Leonard Mlodinow, author of NYT bestseller The Drunkard’s Walk
"Carroll tells the story of the particle that everyone has heard of but few of us actually understand. After you read his book—an enticing cocktail of personal anecdote, clever analogy, and a small dose of mind-bending theory—you will truly grasp why the Higgs boson has been sought after for so long by so many. Carroll is a believer in big science asking big questions and his beliefs are infectious and inspiring."
—Morgan Freeman, Actor and Executive Producer of Through the Wormhole
"Carroll is a sure-footed guide through some of the most perplexing and fascinating insights of modern physics."-Brian Greene, author of The Elegant Universe
— Brian Greene, author of The Elegant Universe
"[Carroll's] writing is accessible and peppered with cultural refernces... but don't be fooled Carroll isn't afraid to wade into topics that have befuddled even brand-name physicists."-Wired — Wired
"Carroll keeps it real, getting at the complex guts of cutting-edge cosmology in discussions that will challenge fans of Hawking's A Brief History of Time."-The Washington Post
— The Washington Post
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Carroll's book can be roughly divided into three parts. In the first part, after giving us a brief overview of particle physics describing relativity, quantum mechanics, the Standard Model and the discovery of the twelve elementary particles that make up the universe, Carroll plunges into a description of the giant particle accelerators that have made possible our understanding of nature's fundamental building blocks. Personally I found this part most enjoyable, since it's a little more accessible than the theoretical part. Carroll tells us about the stupendous engineering challenges involved in the building of the LHC and takes us on a nice little tour of its interior. There's all kinds of fascinating and amusing stuff here; the lead tungstate crystals in the detectors that took ten years to grow, the earlier particle accelerator whose workings were affected by the moon's tides, the baguette dropped by a bird that temporarily created electrical problems, the helium "explosion" caused by high voltage that crippled the machine for months, the physicist whose face was exposed to an intense beam of protons and who still escaped relatively unscathed. The sheer size and complexity of the ten-thousand pound detectors - ATLAS and CMS - beggar belief and the smooth functioning of these hunks of metal, plastic and electronics is a resounding tribute to human ingenuity and collaboration. Carroll is very good at describing the structure and function of the marvelous machines that made the Higgs possible and again confirms the fact that the best science involves both great intellectual ideas and world-class engineering. Many of the LHC's components as well as the principal players are illustrated in color photographs in the center of the book.
Carroll also gives us a lucid account of the statistical methods and data collection techniques used to confirm the discovery of particles. The sheer amount of data collected by the LHC is staggering; as Carroll puts it, enough to fill about a thousand terabyte hard-drives per second. He does a good job detailing the great difficulty of collecting the data from an incredibly complex dance of particle collisions and most importantly, of separating the signal from the noise. He tells us about the almost mythical "5-sigma" threshold, essentially a very stringent statistical test that allows you to claim a "discovery" of a new particle. In July 2012, data from both the ATLAS and CMS detectors was combined together to claim a 5-sigma threshold. Carroll who was in the audience when the discovery was announced captures well the excitement in Geneva and around the world as an intensely international collaboration of more than three thousand LHC-related scientists tuned in to hear the groundbreaking news. This was definitely the discovery of a lifetime, and Peter Higgs was in the audience to hear about it. Yet Carroll drives home the point that statistics is not everything, and illustrates this through the cautionary tale of the discovery of "faster-than-light" neutrinos which, although statistically significant, turned out to be incorrect.
The second part of the book gives us the theoretical basis of the Higgs boson. To Carroll's credit, he spends a fair amount of time dispelling the simplistic belief that the "Higgs boson gives everything mass" and does a pretty good job leading us through the subtleties of what's called the "Higgs field" and exactly how it's relevant to particles masses and interactions. He also addresses the common misunderstanding that most of the mass of an everyday object comes from the Higgs. It doesn't; it comes from the strong interactions and therefore won't suddenly disappear if the Higgs boson were to hypothetically vanish. Along the way Carroll explains important concepts like spontaneous symmetry breaking and Feynman diagrams which are integral to understanding the Higgs mechanism. The last part of the book also has interesting discussions on the potential implications of the Higgs for understanding dark matter, dark energy and the Big Bang. And an amusing chapter lays to rest the slightly paranoid "end-of-world" scenarios postulated before the LHC went online. This same chapter also takes a thoughtful look at the public promotion of science and addresses the role of blogs and other media which communicate science, often correctly but sometimes prematurely. Carroll makes us appreciate the fact that scientists have to tread a fine line in being accurate while still not giving the media an opportunity to sensationalize their findings.
Finally in the third part, Carroll sheds light on the human aspect of science. Part of this is in the earlier chapters where he details the political jockeying and the clash of personalities that was involved in the cancellation of the high-stakes Superconducting Supercollider (SSC) project during the 90s. The fact is that these days even the most fundamental curiosity-driven research can involve billion-dollar equipment like the LHC. Carroll wonders whether governments around the world will now support these increasingly expensive endeavors, especially during times of recession, but also underscores the importance of this research for human creativity and unexpected practical spinoffs (like the World Wide Web). The human aspect of science is also revealed in a separate chapter that among other things asks who would get the Nobel Prize for the discovery. There is no doubt that somebody should get it (and almost universal consensus that Higgs should be included), but the history that Carroll describes makes it clear that at least six people came up with various parts of the idea within a narrow time frame. And the experimentalists seem to deserve it as much as the theoreticians. One thing is certain; any Nobel Prize for the Higgs is going to be at least somewhat controversial.
In general I greatly enjoyed reading "The Particle at the End of the Universe". It's engaging and an easy read and would complement similar other volumes like Ian Sample's "Massive" (which focuses more on the human side) and Frank Close's "The Infinity Puzzle" (which is heavier on the science). Carroll is a pleasant, informative, patient and humorous guide on our tour of the LHC and the Higgs. He is also measured and tends to temper the enthusiasm of discovery with realism; for instance he makes it clear that the discovery of the Higgs still leaves many questions unanswered, and it has no impact on other outstanding scientific problems like discovering cancer drugs or understanding the economy. What Carroll does manage to communicate is the deep satisfaction of discovery, the thrill of the chase and the astonishing achievements that human imagination and skill can make possible.
I'd have to rate this an "important read" for anyone obsessed with understanding what existence is all about. Not surprisingly it doesn't have the answer, but it does help explain the process and the path science is on to reach that goal.
Even you are a non-scientist, you will find this book ineresting and very understandable. You will come away with a broad understanding of the history of particle physics and a comprehensive view of the the Standard Model. As an engineer, I also found the technology of the equipment fasciniating too.
Through the careful use of non-technical language the author does not bog the layman down with complex mathematics and theory. However, he pays just enough attention to the details to convey a very comprehensive account of what is very complex science, weaves a very interesting story.
One thing I would recommend to any reader who is not familiar with the concepts: Do NOT to wait until the end to read the appendices on "Spin" and the "Standard Model."
I recommend this book to anybody who is curious about the tiny universe hidden just beneath the surface of everything around us. It is weirder and more facinating that one might suspect!