May I ask what does β€œTop J.Quark” mean by saying β€œThe brain wouldn’t respond to the new meissner cells properly”?
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πŸ‘€︎ u/satisfying45
πŸ“…︎ Jan 22 2022
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Is the existence of decays mediated by virtual particles (especially heavy ones like top quarks) a consequence of Hisenberg's Uncertainty Principle?

So I had a discussion with a theoretical physics student who says that this is a really big misconception. I'm confused now. Help?

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πŸ‘€︎ u/Shitscomplicated
πŸ“…︎ Nov 30 2021
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I'm a top quark 😏
πŸ‘︎ 2k
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πŸ‘€︎ u/BuildingABap
πŸ“…︎ Aug 13 2021
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Quark mixed with cream with sugar on top
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πŸ‘€︎ u/chockospoko
πŸ“…︎ Dec 04 2021
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Moondrop Quarks: My top budget IEM recommendation reddit.com/gallery/pu6h6q
πŸ‘︎ 15
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πŸ‘€︎ u/SupOrSalad
πŸ“…︎ Sep 23 2021
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From bottom to top: creamy herbs quark, romaine lettuce, red onions, ssalami milano, dijon mustard, pickeld cucumber, tomatoes, romaine lettuce, parmesan, mayo, runny egg and a spicy pepper chive cream cheese on the top bun. I had to eat it like a pig, but it was worth it. imgur.com/kcLow27
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πŸ‘€︎ u/anonuemus
πŸ“…︎ Jul 25 2021
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How does the Higgs Boson and top quark mass help us infer the stability/metastability of the universe?

I'm just an aficionado so try to keep it dumbed down please!

All articles I've seen state that the mass of the Higgs and the top quark seem to be on the limit between stability and metastability, although it still hasn't been confirmed. My question is not regarding in which state the universe is but why does this measurements relate to it. Why does it mean than if the masses of these particles was different then the universe will be in another estate of stability/instability/metaestability/non-perturbability?

In short, where do the regions of this chart come from and why are they there?

Also, what does the non-perturbability region mean?

Thanks!

EDIT: I see lots of shadow banned people here.

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πŸ‘€︎ u/Maezel
πŸ“…︎ Sep 23 2020
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ELI5: If all matter we perceive around us is made out of elemental atoms (Up&Down Quarks + Electrons) What do the other 4 quarks (Charm, Strange, Top Bottom) & 5 Leptons (Muon, Tai, Electron Neutrino, Mou Neu', Tau Neu') Get up to in the universe around us

I suppose a shorter way to ask this question would be; What do the other Composite particles aside from protons and neutrons get up to in the universe...

*Spelling Mistake in title (Tai is supposed to be Tau)

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πŸ‘€︎ u/woolstarr
πŸ“…︎ Jul 07 2021
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TIL physicist believe that quarks come in 6 flavors: up, down, charm, strange, top, and bottom. The last two categories making quarks among the gayest of all elementary particles. en.wikipedia.org/wiki/Qua…
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πŸ‘€︎ u/mlpr34clopper
πŸ“…︎ May 01 2021
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When a top quark is produced in a collider, where does its energy come from?

Was the top energy there all along, hidden by an up quark in one of the colliding protons?

Or does the top quark energy come from the collision energy?

or something else?

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πŸ‘€︎ u/jmarkmorris
πŸ“…︎ Feb 14 2021
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F's in the chat for top quark
πŸ‘︎ 98
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πŸ‘€︎ u/zeb737
πŸ“…︎ Dec 05 2020
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Why does the top quark not form any baryons?

I was looking at baryon pairs and couldn’t find any with a top quark

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πŸ‘€︎ u/b_ruhmomentinator
πŸ“…︎ Apr 21 2021
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Direct Coupling of the Higgs Boson to the Top Quark Observed media.uzh.ch/en/Press-Rel…
πŸ‘︎ 16k
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πŸ‘€︎ u/DoremusJessup
πŸ“…︎ Jun 05 2018
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Probing top quark FCNC couplings in the triple-top signal at the high energy LHC and future circular collider sciencedirect.com/science…
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πŸ‘€︎ u/hamzeh-khanpour
πŸ“…︎ Apr 05 2021
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Probing top quark FCNC couplings in the triple-top signal at the high energy LHC and future circular collider sciencedirect.com/science…
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πŸ‘€︎ u/hamzeh-khanpour
πŸ“…︎ Apr 05 2021
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Probing top quark FCNC couplings in the triple-top signal at the high energy LHC and future circular collider

Probing top quark FCNC couplings in the triple-top signal at the high energy LHC and future circular collider

Hamzeh Khanpour (Mazandaran U., Babolsar & IPM, Tehran)

Sep 9, 2019 - 25 pages

Abstract (Elsevier)
Our main aim in this paper is to present detailed studies to probe the top quark flavor changing neutral current (FCNC) interactions at tqg , tqΞ³ , tqH and tqZ(σμν,Ξ³ΞΌ) vertices in the triple-top signal ppβ†’ttΒ―t(tΒ―ttΒ―) at the high energy proposal of Large Hadron Collider (HE-LHC) and future circular hadron-hadron collider (FCC-hh). To this end, we investigate the production of three top quarks which arise from the FCNC couplings taken into account the fast simulation at s=27 TeV of HE-LHC and 100 TeV of FCC-hh considering the integrated luminosities of 10, 15, and 20 ab βˆ’1 . All the relevant backgrounds are considered in a cut-based analysis to obtain the limits on the anomalous couplings and the corresponding branching ratios. The obtained exclusion limits on the coupling strengths and the branching ratios are summarized and compared in detail with the results in the literature, namely the most recent direct LHC experimental limits and HL-LHC projections as well. We show that, for the higher energy phase of LHC, a dedicated search for the top quark FCNC couplings can achieve much better sensitivities to the triple-top signal than other top quark production scenarios. We found that the limits for the branching ratios of tqg and tqH transitions could reach an impressive sensitivity and the obtained 95% CL limits are at least three orders of magnitude better than the current LHC experimental results as well as the existing projections of HL-LHC.
Abstract (arXiv)

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πŸ‘€︎ u/hamzeh-khanpour
πŸ“…︎ Apr 05 2021
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why is strange quark special. Why does it have its own property called strangeness and why don't other quarks like the top quark have topness?

Thanks in advance for the reply

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πŸ‘€︎ u/aspat7
πŸ“…︎ Nov 26 2020
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Is mirror universe Quark the top Quark or the bottom Quark?

Is there a gender bent cute Quark? Is strange Quark into feet and piss?

πŸ‘︎ 43
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πŸ‘€︎ u/Tat25Guy
πŸ“…︎ Aug 06 2020
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[WTS] Arcteryx Acto FL top and beta AR pants, Katabatic Gear Eos pack, Petzl Quarks, GoreTex buff, OR GoreTex rain pants

Verification pic for everything: https://imgur.com/a/5HAeVmQ

Katabatic Gear Eos climbing pack. Used once. Excellent condition with zero issues. I just have WAY too many packs.

$120 shipped

https://imgur.com/a/Vcmml5N

Petzl Quark Ice Tools in good condition. Picks could use a sharpening.

$200 shipped SOLD

https://imgur.com/a/zQgdoxi

OR Foray GoreTex Paclite full zip rain pants size L in good condition. One crampon nick that's patched. Marks on ass from glissading that'll probably wash out if you want.

$45 shipped SOLD

https://imgur.com/a/l2kxirD

Arcteryx Acto FL size L. Small chew mark from a marmot but otherwise in excellent condition.

$100 shipped SOLD

https://imgur.com/a/FSVoBmX

Gore windstopper buff. Never used, just thrown in my pack a few times.

$20 shipped SOLD

https://imgur.com/a/fmHdiEE

Arcteryx Beta AR GoreTex Pro pants size M. Like new condition, used one time in a resort.

$165 shipped SOLD

https://imgur.com/a/M5m2xjy

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πŸ‘€︎ u/p_hacker
πŸ“…︎ Jun 12 2020
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Twenty-fifth anniversary of the discovery of the top quark at Fermilab news.fnal.gov/2020/03/twe…
πŸ‘︎ 251
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πŸ‘€︎ u/quantizedself
πŸ“…︎ Mar 02 2020
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Is Quark a top or a bottom?

Or maybe he's a strange, a charm, an up, or a down... I'm just not sure what type of Quark he is.

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πŸ‘€︎ u/dontthrowmeinabox
πŸ“…︎ Feb 21 2020
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top quarks be like v.redd.it/oc86z88pgq551
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πŸ‘€︎ u/eirik2103
πŸ“…︎ Jun 18 2020
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ATLAS finds evidence of spectacular four-top quark production atlas.cern/updates/physic…
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πŸ‘€︎ u/ParticleClara
πŸ“…︎ May 27 2020
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The Higgs boson reveals its affinity for the top quark press.cern/press-releases…
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πŸ‘€︎ u/dukwon
πŸ“…︎ Jun 04 2018
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Top, Bottom. If you don't know what a quark is it don't matter you still got'em
πŸ‘︎ 27
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πŸ‘€︎ u/WGeorgeCook
πŸ“…︎ Jan 13 2020
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ATLAS experiment finds evidence of spectacular four-top quark production phys.org/news/2020-06-atl…
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πŸ‘€︎ u/iciq
πŸ“…︎ Jun 23 2020
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Is mirror universe Quark the top Quark or the bottom Quark? reddit.com/r/ShittyDaystr…
πŸ‘︎ 3
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πŸ‘€︎ u/AmbassadorWorf
πŸ“…︎ Aug 06 2020
🚨︎ report
Top Quark III. Launch, RTLS, and Docking in less than one orbit. Forgot to showcase the solar array deployment... oh well v.redd.it/zyqfldbxum551
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πŸ“…︎ Jun 18 2020
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You really gonna scroll past without saying happy birthday to the top quark? (discovered today in 1995)
πŸ‘︎ 63
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πŸ‘€︎ u/staswall-e
πŸ“…︎ Mar 02 2020
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Are top and bottom quarks gay? And are there any vers quarks?

I assume the female gay quarks are called butch and femme.

Also are there any power bottom quarks?

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πŸ“…︎ Nov 29 2019
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Screenshots for a mod I'm working on that adds the top suggestions for quark that wasn't added.
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πŸ‘€︎ u/RegretlessKiller
πŸ“…︎ Nov 24 2017
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The Top Quark is the heaviest elementary particle. The mass was calculated in 2014 through cooperation between four different experimental groups all of which used CERN’s Large Hadron Collider (LHC) in Geneva, Switzerland, and Fermilab’s Tevatron in the United States to observe top quarks. rt.com/usa/physicists-cal…
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πŸ‘€︎ u/FillsYourNiche
πŸ“…︎ Jan 22 2019
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Why was the top quark easier to discover than the Higgs, even though it has a significantly higher mass?

I attended a talk about the Higgs discovery today, and I had a questions I didn't get a chance to ask the speaker. The top quark was discovered relativitly, recently at the Tevatron at Fermilab, and it has a mass of about 170 GeV. However, the Tevatron was not energetic enough to discover the Higgs (or "Higgs-like boson" if you'd prefer), even though it had a mass of 126 GeV. Why was the Higgs so much more elusive, or why was the Top quark easier to find?

πŸ‘︎ 397
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πŸ‘€︎ u/mclaughlin6464
πŸ“…︎ Jul 11 2012
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A game with three alignment meters that are like quark flavours: up/down, top/bottom, and charm/strange.

There can be a hidden fourth alignment that's the unused alternate names for top/bottom, which is truth/beauty.

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πŸ‘€︎ u/ZincAlloy
πŸ“…︎ Jan 05 2020
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The Higgs boson reveals its affinity for the top quark press.cern/press-releases…
πŸ‘︎ 59
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πŸ‘€︎ u/dukwon
πŸ“…︎ Jun 04 2018
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[buying]Proposing Quark top plate clone group buy

Hi all,

I've been looking to build a staggered 40%, but haven't had much luck in finding even a top plate. Especially since the Quark has been discontinued. However, after a brief back interaction with /u/TurtleLightning, I realized there might be enough interest to get a small group buy for a small run of custom cut staggered 40% plates. I'm not sure how this is kind of stuff is normally run, but here is my proposal.

A staggered 40% layout (similar to the Quark) top plate cut from 0.06" T-304 Stainless Steel. The plate design is the simple square cut out for all switches except the spacebar which has Cherry-only stabilizer mounts. The prices below are from Big Blue Saw, but if someone proposes a better fabricator then I can price that out. We'd need at least 5 people to make this happen. The prices below include shipping to your door within the continental US.

Buyers Plates Shipping Total
5 $29.52 $12.37 $41.89
10 $25.59 $11.15 $36.74
15 $25.59 $10.75 $36.34
20 $25.59 $10.55 $36.14
30 $25.59 $10.37 $35.96
40 $25.59 $10.30 $35.89
50 $22.45 $10.25 $32.70

Said they want to order

  • /u/n0bs

  • /u/alex_at_panc x2

  • /u/cynicalego

  • /u/sachin3767

  • /u/saucy_bulgogi

  • /u/TurtleLightning

Tentative

  • /u/Demokirby

  • /u/TheSirCheddar

  • /u/tigojones

  • /u/tyrellj

Edit: Obviously I can't call this keyboard a Quark, so I'm thinking the Bantam-40 is a good name. It also looks like we have 5 people on board with a couple tentative, so it looks like this is gaining a bit of traction. I'll keep a list of users who are interested. Feel free to comment with suggestions or concerns.

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πŸ‘€︎ u/n0bs
πŸ“…︎ Feb 04 2016
🚨︎ report
Constraining the top quark effective field theory using the top quark pair production in association with a jet at future lepton colliders

Constraining the top quark effective field theory using the top quark pair production in association with a jet at future lepton colliders

Reza Jafari, Parvin Eslami (Ferdowsi U.), Mojtaba Mohammadi Najafabadi (IPM, Tehran), Hamzeh Khanpour (Mazandaran U., Babolsar & IPM, Tehran)

Sep 2, 2019 - 20 pages

Abstract (Elsevier)
Our main aim in this paper is to constrain the effective field theory describing the top quark couplings through the eβˆ’e+β†’ttΒ― + jet process. The analysis is carried out considering two different center-of-mass energies of 500 and 3000 GeV including a realistic simulation of the detector response and the main sources of background processes. The expected limits at 95% CL are derived on the new physics couplings such as ttΒ―Ξ³ , ttΒ―Z , and ttΒ―g for each benchmark scenario using the dileptonic ttΒ― final state. We show that the 95% CL limits on dimensionless Wilson coefficients cΒ―i considered in this analysis could be probed down to 10βˆ’4 .
Abstract (arXiv)

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πŸ‘€︎ u/hamzeh-khanpour
πŸ“…︎ Apr 05 2021
🚨︎ report
Is there a mass difference between a Top quark and a anti Top quark?
πŸ‘︎ 13
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πŸ‘€︎ u/Ulriklm
πŸ“…︎ Sep 04 2019
🚨︎ report

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