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Public timeline, page 35

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  1. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Saturday, 25-Mar-2023 11:20:21 UTC Stephen Sekula Stephen Sekula
    Good morning, Sudbury! A glorious sunrise today, with exciting snowy weather to follow. https://chirp.cooleysekula.net/attachment/bae28a824b42b3015c6784998a2854c60b76512a7a38fc702e07f6f890eaf33d/view
    In conversation Saturday, 25-Mar-2023 11:20:21 UTC from NavierStokesApp permalink

    Attachments


    1. a071c2297a247b82.webp
    • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Saturday, 25-Mar-2023 00:01:45 UTC Stephen Sekula Stephen Sekula
      From CERN https://twitter.com/CERN on Twitter: Today at the #Moriond conference, the @ATLASexperiment & @CMSExperiment have both reported the observation of a rare phenomenon: the simultaneous production of four top quarks, which could hold the key to physics beyond the #StandardModel. Find out more: https://home.cern/news/news/physics/atlas-and-cms-observe-simultaneous-production-four-top-quarks https://twitter.com/CERN/status/1639268947697573894/photo/1 https://chirp.cooleysekula.net/attachment/3a6d208bdf32465f9a28181c3220a28582dd86e7b07f5bc18ff31bada18bc474/view
      In conversation Saturday, 25-Mar-2023 00:01:45 UTC from NavierStokesApp permalink

      Attachments

      1. No result found on File_thumbnail lookup.
        from Twitter
        Tweets by CERN

      2. Fr_aYCDWwAM6NwW.webp
      3. ATLAS and CMS observe simultaneous production of four top quarks
        Today, at the Moriond conference, the ATLAS and CMS collaborations have both presented the observation of a very rare process: the simultaneous production of four top quarks. They were observed using data from collisions during Run 2 of the Large Hadron Collider (LHC). Both experiments’ results pass the required five-sigma statistical significance to count as an observation – ATLAS’s observation with 6.1 sigma, higher than the expected significance of 4.3 sigma, and CMS’s observation with 5.5 sigma, higher than the expected 4.9 sigma – making them the first observations of this process. The top quark is the heaviest particle in the Standard Model, meaning it is the particle with the strongest ties to the Higgs boson. This makes top quarks ideal for looking for signs of physics beyond the Standard Model. There are a variety of ways to produce a top quark. Most commonly, they are observed in quark and antiquark pairs, and occasionally on their own. According to Standard Model theory, four top quarks – consisting of two top quark–antiquark pairs – can be produced simultaneously. The rate of production is, however, predicted to be 70 thousand times lower than that of top quark–antiquark pairs, which makes four-top-quark production elusive. Evidence for this phenomenon has previously been found by ATLAS in 2020 and 2021, and by CMS in 2022. However, until today, there had never been an observation. As well as being rare, four-top-quark production is notoriously difficult to detect. When physicists search for a particular event, they look for its “signature”: the properties of the final particles of a decay. These provide clues to the short-lived events they are looking for. Every top quark decays into a W boson and a bottom quark. The W boson can then decay into either a charged lepton and a neutrino or a quark–antiquark pair. This means that the signature of four-top-quark events can be highly varied, containing from zero to four charged leptons and up to 12 jets produced by the quarks. This makes looking for the signature of four-top-quark production challenging. To help search for these events, both ATLAS and CMS used novel machine-learning techniques to build the algorithms that select four-top-quark candidate events. The analyses use the spectacular four-top-quark signature with multiple electrons, muons and (bottom-quark-tagged) jets to separate the events with four top quarks from the background due to other Standard Model processes with larger production rates. Both ATLAS and CMS searched for event signatures containing two or more leptons. The first direct observation of four-top-quark production is an exciting new step in learning more about this fascinating particle. Both experiments look forward to continuing to study this phenomenon during LHC Run 3.   Read more: ATLAS physics briefing CMS physics briefing
      4. No result found on File_thumbnail lookup.
        https://twitter.com/CERN/status/1639268947697573894/photo/1
      • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Saturday, 25-Mar-2023 00:00:24 UTC Stephen Sekula Stephen Sekula
        From TRIUMFLab https://twitter.com/TRIUMFLab on Twitter: Calling physics graduate students: Registration for this year's Tri-Institute Summer School on Elementary Particles (TRISEP) is now open! https://twitter.com/TRIUMFLab/status/1639326745479516160/photo/1 https://chirp.cooleysekula.net/attachment/e4e460f8a31e679d2d052c4b79d02b9a2d6e7de85a41acbcbb217073ca46637f/view
        In conversation Saturday, 25-Mar-2023 00:00:24 UTC from NavierStokesApp permalink

        Attachments

        1. No result found on File_thumbnail lookup.
          https://twitter.com/TRIUMFLab

        2. FsAOA3zaUAAL8fd.webp
        3. No result found on File_thumbnail lookup.
          https://twitter.com/TRIUMFLab/status/1639326745479516160/photo/1
        • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 24-Mar-2023 20:46:34 UTC Stephen Sekula Stephen Sekula
          From ATLASexperiment https://twitter.com/ATLASexperiment on Twitter: The ATLAS Collaboration at @CERN announces the observation of the simultaneous production of four top quarks! This is one of the rarest – and heaviest – processes ever observed at the LHC, with a total particle mass of almost 700 GeV. Learn more in our new briefing ⤵️
          In conversation Friday, 24-Mar-2023 20:46:34 UTC from NavierStokesApp permalink

          Attachments

          1. No result found on File_thumbnail lookup.
            from Twitter
            Tweets by ATLASexperiment
          • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 24-Mar-2023 20:45:19 UTC Stephen Sekula Stephen Sekula
            From MBKplus https://twitter.com/MBKplus on Twitter: Later today, #JWST will point at a portion of the sky that looks fully unremarkable to the naked eye. Why are astronomers and cosmologists so excitedly awaiting the results of these specific observations? Let me tell you! 🧵
            In conversation Friday, 24-Mar-2023 20:45:19 UTC from NavierStokesApp permalink

            Attachments


            • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 24-Mar-2023 20:40:17 UTC Stephen Sekula Stephen Sekula
              From CMSexperiment@sciencemastodon.com on Mastodon: Top quarks have been observed to play in quartet! 🤩 This marks the first observation by CMS of the simultaneous production of four top quarks, opening the door to new and exciting physics. 🔔 Read the physics briefing here: https:// cms.cern/news/cms-observes-fou r-top-quark-production # cern # cmsexperiment # moriond # particlephysics # physics # science
              In conversation Friday, 24-Mar-2023 20:40:17 UTC from NavierStokesApp permalink
              • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 24-Mar-2023 10:10:21 UTC Stephen Sekula Stephen Sekula
                AI isn’t magic or evil. Here’s how to spot AI myths. https://www. washingtonpost.com/technology/ 2023/03/22/ai-red-flags-misinformation/ # WashintonPost
                In conversation Friday, 24-Mar-2023 10:10:21 UTC from NavierStokesApp permalink

                Attachments


                • Stephen Michael Kellat likes this.
              • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 24-Mar-2023 01:55:23 UTC Stephen Sekula Stephen Sekula
                From JillDunlop1 https://twitter.com/JillDunlop1 on Twitter: Today, our government released the Ontario 2023 Budget - Building a #StrongOntario. Learn more about our plan to drive growth by lowering costs, getting key infrastructure projects built faster, and attracting more investment: https://news.ontario.ca/en/release/1002856/building-a-strong-ontario #ONBudget2023 https://twitter.com/JillDunlop1/status/1639038329239871491/photo/1 https://chirp.cooleysekula.net/attachment/ea4be733ffa6bdd0873bcf588f50ae7544af85ab37526e0cdfa2ebcae516cd7a/view
                In conversation Friday, 24-Mar-2023 01:55:23 UTC from NavierStokesApp permalink

                Attachments


                1. Fr8IrBSXgAEx4xM.webp
                2. No result found on File_thumbnail lookup.
                  https://twitter.com/JillDunlop1
                3. No result found on File_thumbnail lookup.
                  Ontario Newsroom
                4. No result found on File_thumbnail lookup.
                  https://twitter.com/JillDunlop1/status/1639038329239871491/photo/1
                • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Thursday, 23-Mar-2023 12:00:20 UTC Stephen Sekula Stephen Sekula
                  Excited about my second day physically back at work at SNOLAB. I will be splitting my time today between the surface building at the lab site and our space at Laurentian University. Looking forward to running into SNO folks who are in Sudbury for their collaboration meeting this week.
                  In conversation Thursday, 23-Mar-2023 12:00:20 UTC from NavierStokesApp permalink
                  • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Thursday, 23-Mar-2023 09:45:20 UTC Stephen Sekula Stephen Sekula
                    From McDonaldInst https://twitter.com/McDonaldInst on Twitter: 🔭Fast radio bursts were only discovered in 2007, and astronomers still don't know what they are. Join Prof Victoria Kaspi from the CHIME radio telescope TOMORROW at @queensu or online📺 for this hybrid event exploring this extragalactic mystery! ✴️ 🎟️https://www.eventbrite.ca/e/the-fast-radio-cosmos-victoria-kaspi-ewan-lecture-tickets-528635491987?aff=twdb
                    In conversation Thursday, 23-Mar-2023 09:45:20 UTC from NavierStokesApp permalink

                    Attachments

                    1. No result found on File_thumbnail lookup.
                      https://twitter.com/McDonaldInst
                    • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 22-Mar-2023 22:05:21 UTC Stephen Sekula Stephen Sekula
                      From AJamesMcCarthy https://twitter.com/AJamesMcCarthy on Twitter: On Friday, the sun put on a dazzling show for us. My friend @TheVastReaches and I worked hard over the last 5 days to produce this incredibly detailed 140 megapixel image to illustrate how wonderfully dynamic and beautiful our star can be. Make sure you zoom in! https://twitter.com/AJamesMcCarthy/status/1638648459002806272/photo/1 https://chirp.cooleysekula.net/attachment/de8ba7986a41e177cee4847d10a0d3347a253edf8f176772f199e20abd1a507c/view
                      In conversation Wednesday, 22-Mar-2023 22:05:21 UTC from NavierStokesApp permalink

                      Attachments



                      2. Fr2elMpaMAAqgZN.webp
                      3. No result found on File_thumbnail lookup.
                        https://twitter.com/AJamesMcCarthy/status/1638648459002806272/photo/1
                      • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 22-Mar-2023 19:25:20 UTC Stephen Sekula Stephen Sekula
                        Had a chance to read through the new XENONnT science run 0 results. Overall, a nice step forward. Of particular interest to me was the observation vs. prediction of 6x more neutron background expected than predicted from simulation. 3 cheers for data-driven methods! https:// xenonexperiment.org/wp-content /uploads/2023/03/xenonnt_wimp_results_preprint_march2023.pdf https://chirp.cooleysekula.net/attachment/7f27f3da2a53fc128ca90b618ae817fdea3d80cc73c575bfbfa21a331c63cd48/view
                        In conversation Wednesday, 22-Mar-2023 19:25:20 UTC from NavierStokesApp permalink

                        Attachments


                        1. 88a963a9bd74b646.webp
                        • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 22-Mar-2023 16:50:18 UTC Stephen Sekula Stephen Sekula
                          In case you're looking for it, here is the XENON Collaboration pre-print of their analysis of the existing XENONnT dark matter search data. https:// xenonexperiment.org/wp-content /uploads/2023/03/xenonnt_wimp_results_preprint_march2023.pdf
                          In conversation Wednesday, 22-Mar-2023 16:50:18 UTC from NavierStokesApp permalink
                          • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 22-Mar-2023 13:45:17 UTC Stephen Sekula Stephen Sekula
                            Had to leave the XENON presentation due to participants unprofessionally interrupting the speaker and people being extremely rude in chat. The organizers did not lock down Zoom before admitting people, so anyone was free to unmute their mic, set their name, or show their camera, which is extremely dangerous in the modern era. I will wait for the paper and/or the press release about the results.
                            In conversation Wednesday, 22-Mar-2023 13:45:17 UTC from NavierStokesApp permalink
                            • Stephen Michael Kellat likes this.
                          • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 22-Mar-2023 13:10:17 UTC Stephen Sekula Stephen Sekula
                            From ProPublica@newsie.social on Mastodon: CORRECTION: The above post has been edited to correct an error in the original version of the story, which had incorrectly described Jim Jordan’s letters. They are requests for information, not subpoenas.
                            In conversation Wednesday, 22-Mar-2023 13:10:17 UTC from NavierStokesApp permalink
                            • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 22-Mar-2023 12:30:22 UTC Stephen Sekula Stephen Sekula
                              Excited to be back to the lab and working in person. Nothing accelerates science faster than real human interactivity. https://chirp.cooleysekula.net/attachment/66cbaa53d6d9f8ca8ff92b27d2b4e8f8b567ce5f6b3c816e5f2a7add4df6591c/view
                              In conversation Wednesday, 22-Mar-2023 12:30:22 UTC from NavierStokesApp permalink

                              Attachments


                              1. 02ab33062098c640.webp
                              • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 22-Mar-2023 11:15:21 UTC Stephen Sekula Stephen Sekula
                                Hooray! 2nd negative test in 48 hours! Masking up and heading back to in-person work. Have I missed being at SNOLAB! https://chirp.cooleysekula.net/attachment/faf2d437ee07dacbf2e0d6c3ce2a89316a51133bc3727d8a3d60825cbf1f28ca/view
                                In conversation Wednesday, 22-Mar-2023 11:15:21 UTC from NavierStokesApp permalink

                                Attachments


                                1. 7a42a19a222313d2.webp
                                • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 22-Mar-2023 10:30:22 UTC Stephen Sekula Stephen Sekula
                                  Today’s XENON Collaboration seminar speaker is from Mainz University in Germany. Among its many research features, one of my favorite things about Mainz is the Mainz Institute for Theoretical Physics (MITP) which has an EXCELLENT YouTube channel of chalkboard lectures on a range of physics subjects. You get a deep dive in each subject, building to greater and greater detail over each speaker’s series of lectures. https:// youtube.com/@mainzinstitutefor theoretic1604
                                  In conversation Wednesday, 22-Mar-2023 10:30:22 UTC from NavierStokesApp permalink
                                  • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 22-Mar-2023 10:25:25 UTC Stephen Sekula Stephen Sekula
                                    Check out the presentation (08:30 ET) from the XENON Collaboration on the 1st dark matter search results from XENONnT, the current phase of their experimental program. Learn more about their technology and see the first steps into a new sensitivity regime for WIMP-like dark matter candidates! XENONnT is hosted by INFN Gran Sasso National Laboratory (LNGS) and is shielded by a 1.4km rock overburden. https:// twitter.com/xenonexperiment/st atus/1638323141133869057?s=12&t=IrY8MdYHgcczJojvQJkGBA https://chirp.cooleysekula.net/attachment/f5a9400c7a6676de32ec03b87136a0eb110416a5c1f0b6d7fc409815983298cd/view
                                    In conversation Wednesday, 22-Mar-2023 10:25:25 UTC from NavierStokesApp permalink

                                    Attachments


                                    1. 4c794ba37481742d.webp
                                    • Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 22-Mar-2023 10:10:18 UTC Stephen Sekula Stephen Sekula
                                      From ProPublica@newsie.social on Mastodon: GOP Rep. Jim Jordan Issues Sweeping Subpoenas to Universities Researching Disinformation -- In the subpoenas, Jordan asserted that the schools may have contributed to the Biden administration’s “censorship regime by advising on so-called misinformation.” Among the schools that ProPublica confirmed received subpoenas are Stanford, Univ. of Washington
                                      In conversation Wednesday, 22-Mar-2023 10:10:18 UTC from NavierStokesApp permalink
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                                      Popular notices

                                      1. veer66 (veer66@mstdn.in.th)'s status on Sunday, 15-Sep-2024 07:47:59 UTC veer66 veer66
                                        in reply to

                                        @clacke why not every 3-month?

                                        In conversation about 2 months ago from mstdn.in.th permalink
                                      2. Haelwenn /элвэн/ :triskell: (lanodan@queer.hacktivis.me)'s status on Sunday, 15-Sep-2024 07:47:57 UTC Haelwenn /элвэн/ :triskell: Haelwenn /элвэн/ :triskell:
                                        in reply to
                                        @clacke Yeah I get that, here it's a file on my desktop that gets filtered by a script, there's stuff from nearly 10 years ago in there so I quite trust it.
                                        Meanwhile I don't trust a phone for even keeping contacts.
                                        In conversation about 2 months ago from queer.hacktivis.me permalink
                                      3. Coles Street Pothole (colesstreetpothole@weatherishappening.network)'s status on Sunday, 15-Sep-2024 07:44:07 UTC Coles Street Pothole Coles Street Pothole
                                        in reply to

                                        @clacke Medical science here is paid for with tax dollars and then the treatments and care are sold back to the taxpayer at high prices through a private system. AND states have sold the information to various entities—Texas sold theirs to the Pentagon, for some reason. So, it's a hellscape herre.

                                        In conversation about 2 months ago from weatherishappening.network permalink
                                      4. Marie 🇸🇪 🇦🇺 🇸🇬 (smlx4@mastodon.nu)'s status on Sunday, 15-Sep-2024 07:42:51 UTC Marie 🇸🇪 🇦🇺 🇸🇬 Marie 🇸🇪 🇦🇺 🇸🇬

                                        My beautiful half Haitian mother will be roasting a pig tonight, just like Kamala Harris did during the debate.
                                        - Stephen Curry

                                        #politics #stephencurry #kamelaharris

                                        In conversation about 2 months ago from mastodon.nu permalink
                                      5. Ben Aveling (benaveling@mastodon.au)'s status on Saturday, 14-Sep-2024 12:20:46 UTC Ben Aveling Ben Aveling
                                        in reply to

                                        @brianstorms @clacke @countcol the pornographers are always at the forefront of any viable new technology. Which is why their lack of interest in crypto currency is telling.

                                        In conversation about 2 months ago from mastodon.au permalink
                                      6. Marie 🇸🇪 🇦🇺 🇸🇬 (smlx4@mastodon.nu)'s status on Saturday, 14-Sep-2024 12:20:32 UTC Marie 🇸🇪 🇦🇺 🇸🇬 Marie 🇸🇪 🇦🇺 🇸🇬
                                        in reply to

                                        @eliasr det var en händelse som fördes på Twitter när KD tog upp ämnet
                                        om SD:s rasistiska & nazistiska "förflutna".
                                        Åkesson blev rasande & påminde Busch att "självgoda finborgare" i KD styr landet under hans nåder. Buschs uttryckte att: "De [SD] har den bakgrund de har. Kom över det nu. Vi har uppenbarligen kunnat göra det. Hon erkände att hon & KD inte har några problem att ge inflytande åt SD & deras uppenbart levande rötter.

                                        In conversation about 2 months ago from mastodon.nu permalink

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