Tag Archives: Peter Higgs

News and events at the Perimeter Institute for Theoretical Physics (Waterloo, Ontario, Canada)

I believe this is an April (?) 2024 newsletter and it’s definitely from Canada’s Perimeter Institute for Theoretical Physics (PI). Received via email, I was able to find this online copy (Note: I’m not sure how long this copy will remain online) and am excerpting a few items for inclusion here,

The current state of theoretical physics

Join the latest episode of Conversations at Perimeter as Neil Turok [director of the Perimeter Institute, 2008 – 2019] delves into the intriguing topic of the simplicity of nature.

Watch podcast here

Public Lecture – May 8 [2024]

Free tickets to attend the event in person will be available on Monday, April 22, at 9:00 AM EDT. Live-stream will also be available on the PI YouTube channel. 

Check details here

Quantum Lectures playlist

Explore quantum physics with our YouTube Quantum Lectures playlist. Discover the universe’s secrets from basics to advanced topics

Start watching now!

I found this poster for the free May 8, 2024 PI event,

[downloaded from https://www.eventbrite.ca/e/hydrogen-to-higgs-boson-particle-physics-at-the-large-hadron-collider-tickets-877493876807]

It (the May 8, 2024 PI hybrid [live or streaming] event) may be of more interest than usual as Peter Higgs of the Higgs Boson died on April 8, 2024, from the Hydrogen to Higgs Boson: Particle Physics at the Large Hadron Collider eventbrite webpage,

Hydrogen to Higgs Boson: Particle Physics at the Large Hadron Collider

Explore particle physics with Dr. Clara Nellist at the Perimeter Institute on May 8, as she discusses CERN’s groundbreaking research.

Date and time

Starts on Wednesday, May 8 [2024] · 6pm EDT

Location

Perimeter Institute for Theoretical Physics
31 Caroline Street North Waterloo, ON N2L 2Y5

Agenda

6:00 p.m.

Doors Open

Perimeter’s main floor will be open for ticket holders, with scientists available to answer science questions until the show begins.

7:00 p.m. – 8:00 p.m.

Public Lecture

The public lecture will begin at 7:00pm, including a live stream for virtual attendees. This will include a full presentation as well as a Q&A session.

8:00 p.m. – 8:30 p.m.

Post-Event Discussion

Following the lecture, discussion will continue in the atrium, where you can ask questions to the presenter as well as other researchers in the crowd.

About this event

About the Speaker:

Dr Clara Nellist – Particle Physicist and Science Communicator, is currently working at CERN [European Organization for Nuclear Research] on the ATLAS experiment, with research focusing on top quarks and searching for dark matter with machine learning. Learn more about her work on her Instagram here.

About the Event:

Registration to attend the event in person will be available on Monday, April 22 at 9:00 AM EDT.

Tickets for this event are 100% free. [emphasis mine] As always, our public lectures are live-streamed in real-time on our YouTube channel – available here: https://www.youtube.com/@PIOutreach

The existence of the Higgs boson was confirmed (or as close to confirmed as scientists will get) in 2012 (see my July 4, 2012 posting “Tears of joy as physicists announce they’re pretty sure they found the Higgs Boson” for an account of the event. Peter Higgs and and François Englert were awarded the 2013 Nobel Prize in Physics.

If you are planning to attend the lecture in person, free tickets will be made available on Monday, April 22, at 9:00 AM EDT. Go here and, remember, these tickets go quickly.

Quantum; the dance performance about physics in Vancouver, Canada (2 of 2)

Gilles Jobin kindly made time to talk about his arts residency at CERN (European Particle Physics Laboratory) prior to the performances of Quantum (a dance piece resulting from the residency) from Oct. 16 -18, 2014 at Vancouver’s Dance Centre.

Jobin was the first individual to be selected as an artist-in-residence for three months in the CERN/Geneva programme (there is another artist-in-residence programme at the laboratory which is the CERN/Ars Electronica programme). Both these artist-in-residence programmes were announced in the same year, 2011. (You can find out more about the CERN artist-in-residence programmes on the Collide@CERN webpage,

As a main strategy of CERN’s Cultural Policy for Engaging with the Arts, Collide@CERN is a 3-year artist’s residency programme initiated by Arts@CERN in 2011.

By bringing world-class artists and scientists together in a free exchange of ideas, the Collide@CERN residency programme explores elements even more elusive than the Higgs boson: human ingenuity, creativity and imagination.

See below for more information about the Collide@CERN artist residency programmes:

Collide@CERN Geneva Residency

Prix Ars Electronica Collide@CERN Residency

The Collide@CERN prize – an open call to artists working in different art forms to win a fully funded residency – will be awarded annually in two strands (Collide@CERN Geneva and Prix Ars Electronica Collide@CERN) until 2013. It comprises prize money and a residency grant for up to 3 months at CERN.

The winning artists will interact and engage with CERN scientists in order to take their artistic work to new creative dimensions.

The awards are made following two annual international open calls and the jury comprises the cultural partners as well as representatives from Arts@CERN, including scientists.

Planned engagement with artists at CERN is a relatively new concept according to an August 4, 2011 CERN press release,

Today CERN1 launches its cultural policy for engaging with the arts. Called ‘Great Arts for Great Science’, this new cultural policy has a central strategy – a selection process for arts engagement at the level of one of the world’s leading research organizations.

“This puts CERN’s engagement with the arts on a similar level as the excellence of its science,” said Ariane Koek, CERN’s cultural specialist.

CERN’s newly appointed Cultural Board for the Arts will be the advisers and guardians of quality. It is made up of renowned cultural leaders in the arts from CERN’s host-state countries: Beatrix Ruf, Director of the Kunsthalle Zurich; Serge Dorny, Director General of the Lyon Opera House; Franck Madlener, Director of the music institute IRCAM in Paris. Geneva and CERN are represented by Christoph Bollman of ArtbyGenève and Michael Doser, an antimatter scientist. Membership of the board is an honorary position that will change every three years.

The Cultural Board will select one or two art projects a year to receive a CERN letter of approval, enabling these projects to seek external funding for their particle-physics inspired work. This will also build up an international portfolio of CERN-inspired work over the years to come, in conjunction with the Collide@CERN (link sends e-mail) Artists Residency Programme, details of which will be announced in the coming month.

To date, Jobin is the only choreographer to become, so to speak, a member of the CERN community. It was a position that was treated like a job. Jobin went to his office at CERN every day for three months to research particle physics. He had two science advisors, Nicholas Chanon and Michael Doser to help him gain an understanding of the physics being studied in the facility. Here’s Jobin describing his first experiences at CERN (from Jobin’s Collide Nov. 13, 2012 posting),

When I first arrived at Cern, I was captivated by the place and overwhelmed by the hugeness of the subject: Partical [sic] physics… And I had some serious catch up to do… Impressed by the two introduction days in which I had the opportunity to meet many different scientists, Ariane Koeck told me “not to panic” and “to spend my first month following my instinct and not my head…”. …

I found out about the 4 fundamental forces and the fact that gravity was the weakest of all the forces. For a contemporary dancer formed basically around the question of gravity and “groundness” that came as a total shock! I was not a “pile of stuff”, but particles bound together by the strong force and “floating” on the surface of the earth… Me, the earth, you readers, the LHC flying at incredible speed through space, without any of us, (including the physicists!) noticing anything…  Stardust flying into space… I was baffled…

Jobin was required deliver two public lectures, one at the beginning of his residency and the other at the end, as well as, a series of ‘interventions’. He instituted four ‘interventions’, one each in CERN’s library, data centre, anti-matter hall, and cafeteria. Here’s an image and a description of what Jobin was attempting with his library intervention (from his Nov. 13, 2012 posting),

CERN library dance intervention Credit: Gilles Jobin

CERN library dance intervention Credit: Gilles Jobin

 My idea was to “melt” our bodies into the timeline of the library. Like time chameleons, we were to adapt our movements and presence to the quiet and studious atmosphere of the library and be practically unnoticed. My postulate was to imagine that the perception of time is relative; there was a special texture to “time” inside the library. How long is an afternoon in a library? Never ending or passing by too quickly? It is a shared space, with the unique density you can feel in studious atmosphere and its user’s different virtual timelines. We melted into the element of the library and as we guessed, our “unusual” presence and actions did not create conflicts with our surroundings and the students at work. It was a bit like entering slowly into water and becoming part of the element without disturbing its balance. The time hypothesis worked… I wanted to do more site specific interventions in Cern because I was learning things differently. Some understanding was going through my body. Being in action into the labs…

It was only after the residency was completed that he started work on Quantum (producing a dance piece was not a requirement of the residency). After the residency, he did bring his science advisors, Chanon and Doser to his studio and brought his studio to CERN. Jobin managed to get rehearsal time in one of the halls that is 100 metres directly above the large hadron collider (LHC) during the time period when scientists were working to confirm the existence of the Higgs Boson). There were a number of announcements ‘confirming’ the Higgs. They started in July 2012 and continued, as scientists refined their tests, to March 2013 (Wikipedia entry)  when a definitive statement was issued. The definitive statement was recently followed with more confirmation as a June, 25, 2014 article by Amir Aczel for Discover declares Confirmed: That Was Definitely the Higgs Boson Found at LHC [large hadron collider].

As scientists continue to check and doublecheck, Jobin presented Quantum in October 2013 for the first time in public, fittingly, at CERN (from Jobin’s Oct. 3, 2013 blog posting),

QUANTUM @ CERN OPEN DAYS CMS-POINT5-CESSY. Credit: Gilles Jobin

QUANTUM @ CERN OPEN DAYS CMS-POINT5-CESSY. Credit: Gilles Jobin

Jobin was greatly influenced by encounters at CERN with Julius von Bismarck who won the 2012 Prix Ars Electronica Collide@CERN Residency and with his science advisors, Dosen and Chanon. Surprisingly, Jobin was also deeply influenced by Richard Feynman (American physicist; 1918 – 1988). “I loved his approach and his humour,” says Jobin while referring to a book Feynman wrote, then adding,  “I used Feynman diagrams, learning to draw them for my research and for my choreographic work on Quantum.”

For those unfamiliar with Feynman diagrams, from the Wikipedia entry (Note: Links have been removed),

In theoretical physics, Feynman diagrams are pictorial representations of the mathematical expressions describing the behavior of subatomic particles. The scheme is named for its inventor, American physicist Richard Feynman, and was first introduced in 1948. The interaction of sub-atomic particles can be complex and difficult to understand intuitively, and the Feynman diagrams allow for a simple visualization of what would otherwise be a rather arcane and abstract formula.

There’s also an engaging Feb. 14, 2010 post by Flip Tanedo on Quantum Diaries with this title, Let’s draw Feynman diagrams! and there’s this paper, by David Kaiser on the Massachusetts Institute of Technology website, Physics and Feynman’s Diagrams; In the hands of a postwar generation, a tool intended to lead quantum electrodynamics out of a decades-long morass helped transform physics. In the spirit of Richard Feynman, both the Tanedo post and Kaiser paper are quite readable. Also, here’s an example (simplified) of what a diagram (from the Quantum Diaries website) can look like,

[downloaded from http://www.quantumdiaries.org/2010/02/14/lets-draw-feynman-diagams/]

[downloaded from http://www.quantumdiaries.org/2010/02/14/lets-draw-feynman-diagams/]

Getting back to Quantum (dance), Jobin describes this choreography as a type of collaboration where the dancers have responsibility for the overall look and feel of the piece. (For more details, Jobin describes his ‘momement generators’ in the radio interview embedded in part 1 of this piece on Quantum.)

In common with most contemporary dance pieces, there is no narrative structure or narrative element to the piece although Jobin does note that there is one bit that could be described as a ‘Higgs moment’ where a dancer is held still by his or her feet, signifying the Higgs boson giving mass to the universe.

As to why Vancouver, Canada is being treated to a performance of Quantum, Jobin has this to say, “When I knew the company was traveling to New York City and then San Francisco, I contacted my friend and colleague, Mirna Zagar, who I met at a Croatian Dance Week Festival that she founded and produces every year.”  She’s also the executive director for Vancouver’s Dance Centre. “After that it was easy.”

Performances are Oct. 16 – 18, 2014 at 8 pm with a Post-show artist talkback on October 17, 2014.

Compagnie Gilles Jobin

$30/$22 students, seniors, CADA members/$20 Dance Centre members
Buy tickets online or call Tickets Tonight: 604.684.2787 (service charges apply to telephone bookings)

You can find part 1 of this piece about Quantum in my Oct. 15, 2014 posting. which includes a video, a listing of the rest of the 2014 tour stops, a link to an interview featuring Jobin and his science advisor, Michael Doser, on a US radio show, and more.

Finally, company dancers are posting video interviews (the What’s Up project mentioned in part 1) with dancers they meet in the cities where the tour is stopping will be looking for someone or multiple someones in Vancouver. These are random acts of interviewing within the context of the city’s dance community.

Vancouver’s Georgia Straight has featured an Oct. 15, 2014 article by Janet Smith about Jobin and his particle physics inspiration for Quantum.

The Higgs boson on its own has inspired other creativity as noted in my Aug. 1, 2012 posting (Playing and singing the Higgs Boson).

As noted in my Oct. 8, 2013 post, Peter Higgs (UK) after whom the particle was named  and François Englert (Belgium) were both awarded the 2013 Nobel Prize in Physics for their contributions to the theory of the Higgs boson and its role in the universe.

Science publishing, ‘high impact’, reliability, and the practice of science

Konstantin Kakaes has written a provocative and astute article (Feb. 27, 2014 on Slate) about science and publishing, in particular about ‘high impact’ journals.

In 2005, a group of MIT graduate students decided to goof off in a very MIT graduate student way: They created a program called SCIgen that randomly generated fake scientific papers. Thanks to SCIgen, for the last several years, computer-written gobbledygook has been routinely published in scientific journals and conference proceedings. [emphasis mine]

Apparently some well known science publishers have been caught (from the Kakaes article; Note: A link has been removed),

According to Nature News, Cyril Labbé, a French computer scientist, recently informed Springer and the IEEE, two major scientific publishers, that between them, they had published more than 120 algorithmically-generated articles. In 2012, Labbé had told the IEEE of another batch of 85 fake articles. He’s been playing with SCIgen for a few years—in 2010 a fake researcher he created, Ike Antkare, briefly became the 21st most highly cited scientist in Google Scholar’s database.

Kakaes goes on to explain at least in part why this problem has arisen,

Over the course of the second half of the 20th century, two things took place. First, academic publishing became an enormously lucrative business. And second, because administrators erroneously believed it to be a means of objective measurement, the advancement of academic careers became conditional on contributions to the business of academic publishing.

As Peter Higgs said after he won last year’s Nobel Prize in physics, “Today I wouldn’t get an academic job. It’s as simple as that. I don’t think I would be regarded as productive enough.” Jens Skou, a 1997 Nobel Laureate, put it this way in his Nobel biographical statement: today’s system puts pressure on scientists for, “too fast publication, and to publish too short papers, and the evaluation process use[s] a lot of manpower. It does not give time to become absorbed in a problem as the previous system [did].”

Today, the most critical measure of an academic article’s importance is the “impact factor” of the journal it is published in. The impact factor, which was created by a librarian named Eugene Garfield in the early 1950s, measures how often articles published in a journal are cited. Creating the impact factor helped make Garfield a multimillionaire—not a normal occurrence for librarians.

The concern about ‘impact factors’ high or low with regard to science publishing is a discussion I first stumbled across and mentioned in an April 22, 2010 posting where I noted the concern with metrics extends beyond an individual career or university’s reputation but also affects national reputations. Kostas Kostarelos in a Jan. 24, 2014 posting on the Guardian science blogs notes this in his discussion of how China’s policies could affect the practice of science (Note: Links have been removed),

…  For example, if a Chinese colleague publishes an article in a highly regarded scientific journal they will be financially rewarded by the government – yes, a bonus! – on the basis of an official academic reward structure. Publication in one of the highest impact journals is currently rewarded with bonuses in excess of $30,000 – which is surely more than the annual salary of a starting staff member in any lab in China.

Such practices are disfiguring the fundamental principles of ethical integrity in scientific reporting and publishing, agreed and accepted by the scientific community worldwide. They introduce motives that have the potential to seriously corrupt the triangular relationship between scientist or clinician, publisher or editor and the public (taxpayer) funding agency. They exacerbate the damage caused by journal quality rankings based on “impact factor”, which is already recognised by the scientific community in the west as problematic.

Such measures also do nothing to help Chinese journals gain recognition by the rest of the world, as has been described by two colleagues from Zhejiang University in an article entitled “The outflow of academic articles from China: why is it happening and can it be stemmed?”.

At this point we have a system that rewards (with jobs, bonuses, etc.) prolific publication of one’s science achieved either by the sweat of one’s brow (and/or possibly beleaguered students’ brows) or from a clever algorithm. It’s a system that encourages cheating and distorts any picture we might have of scientific achievement on a planetary, national, regional, university, or individual basis.

Clearly we need to do something differently. Kakaes mentions an initiative designed for that purpose, the San Francisco Declaration on Research Assessment (DORA). Please do let me know in the Comments section if there are any other such efforts.

Tears of joy as physicists announce they’re pretty sure they found the Higgs Boson

Physicists are jubilant over the announcement from CERN (European Particle Physics Laboratory) that (from the CERN website),

The ATLAS and CMS experiments at CERN today presented their latest results in the search for the long-sought Higgs boson. Both experiments see strong indications for the presence of a new particle, which could be the Higgs boson, in the mass region around 126 gigaelectronvolts (GeV). [emphases mine]

The depth of feeling is extraordinary given the announcement  is cautious. When you consider that this pursuit of the Higgs boson is international in scope (approximately 150 scientists from Canada and I assume much larger contingents from elsewhere) and the effort has spanned several years, it’s fascinating and instructive to observe the jubilance.

Here’s a sampling from the July 4, 2012 live blog Lizzy Davies of the UK’s Guardian newspaper (with tweets from Guardian science correspondent Ian Sample and others) wrote during the announcement,

7:17 am … The elusive “God particle” has become the most sought-after particle in modern science. Its discovery would be proof of an invisible energy field that fills the vacuum of space, and excitement in the scientific community is at fever pitch.

8.02am: And we’re off. First up is Joe Incandela, the leader of the team using the CMS detector to search for new particles. He’ll be followed by Fabiola Gianotti from the other team using the Atlas detector.

He says the results are “very strong, very solid”.

8.13am: As Incandela speaks, the brilliant Ian Sample is live-tweeting from Cern.

Ian Sample @iansample

I’ve been told that anyone who thinks they haven’t found a new particle after this has lost touch with reality. #cern #lhc #higgs #ichep2012

Ian Sample @iansample

Incandela “Many people went many days without sleep.” #ichep2012 #lhc #cern #higgs

And we’re keeping our observations extremely serious in keeping with the potentially historic nature of the day.

Ian Sample @iansample

Does Joe Incandela (cms spokesman) not look a little like George Clooney? #ichep2012 #lhc #higgs #lhc

8.39am: Big applause.

Anil Ananthaswamy @edgeofphysics

Combined significance of all results 5 standard deviations. Room breaks into applause, whistles #Higgs #LHC

9.44am: Rolf Heuer, Director General of CERN, offers this verdict:

As a layman I would say: I think we have it. You agree?

The audience claps. I think that’s a yes.

9.46am: Heuer flashes up on screen a slide that says Cern have discovered “a particle consistent with the Higgs boson- but which one?”

So, while this is undoubtedly a milestone with “global implications”, he says, it is also the beginning of a lot more research and investigation. But, he adds, “I think we can be very, very optimistic”.

9.49am: Peter Higgs, who first proposed the idea of this boson in 1964 and is now 83, may have shed a tear or two there- a sight which seems to have got everyone else going too.

Manlio De Domenico @manlius84

Peter #Higgs is crying… it’s a great day for physics. I am proud of being a physician :°)

I definitely wanted to get that “George Clooney” comment in here so you can have a sense of just how giddy people can get (if you didn’t already know) in the midst of an important announcement.

Jeff Forshaw, particle physics professor at the University of Manchester, provides some perspective about the importance of this announcement in his July 4, 2012 posting for the Guardian,

Fundamental science like this is thrilling, not least because of the way that years of hard work, experimentation and mathematical analysis have led us to a worldview of astonishing simplicity and beauty.

We have learned that the universe is made up of particles and that those particles dance around in a crazy quantum way. But the rules of the game are simple – they can be codified (almost) on the back of an envelope and they express the fact that, at its most elemental level, the universe is governed by symmetry. Symmetry and simplicity go hand in hand – half a snowflake is enough information to anticipate what the other half looks like – and so it is with those dancing particles. The discovery that nature is beautifully symmetric means we have very little choice in how the elementary particles do their dance – the rules simply “come for free”. Why the universe should be built in such an elegant fashion is not understood yet, but it leaves us with a sense of awe and wonder that we should be privileged to live in such a place.

Now, physicists will begin again as they try to better our understanding of the universe. But for today they will celebrate and I have some quotes from the Canadian contingent about this latest announcement (from the July 4, 2012 TRIUMF news release),

Likening the quest for the Higgs to Christopher Columbus’s voyage of
discovery to the New World, Nigel S. Lockyer, director of TRIUMF [based at the University of British Columbia in Vancouver, Canada], said,”With ATLAS and the LHC, we set sail in the direction toward what we thought was the land of the Higgs. Last December, we saw a smudge on the horizon and knew we could be getting close to land. With these latest results, we’ve
seen the shoreline! We know we’ll make it to dry land, but the ship is not
in to shore just yet.”

The results presented today are labeled preliminary. They are based on data
collected in 2011 and 2012, with the 2012 data still under analysis.
Publication of the analyses shown today is expected around the end of July.
A more complete picture of today’s observations will emerge later this year
after the LHC provides the experiments with more data.

“The observation of a new particle at about 125 GeV, or 130 times the mass
of the proton, by both the ATLAS and CMS groups is already a tremendous
achievement,” said Rob McPherson, spokesperson of the ATLAS Canada
collaboration, a professor of physics at the University of Victoria and
Institute of Particle Physics scientist. “While our preliminary measurements
show this new particle is consistent with the Higgs boson, we need more data
to be sure that it is definitely the Higgs.”

The next step will be to determine the precise nature of the particle and
its significance for our understanding of the universe. Are its properties
as expected for the long-sought Higgs boson, the final\ missing ingredient
in the Standard Model of particle physics? Or is it something more exotic?
The Standard Model describes the fundamental particles from which we, and
every visible thing in the universe, are made, and the forces acting between
them. All the matter that we can see, however, appears to be no more than
about 4% of the total. A more exotic version of the Higgs particle could be
a bridge to understanding the 96% of the universe that remains obscure.

Don’t forget there’s an open house from 9 am to 11 am today at TRIUMF where you can find out more about the Higgs boson and the latest announcement.

ETA July 4, 2012 1:30 pm PST: You can still attend a live Q&A being held by the journal Nature tomorrow (July 5, 2012) at 2 pm BST or 6 am PST: Live Q&A: Higgs found, so what’s next?