Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

Higgs Boson Positively Identified
ScienceNOW ^ | 14 March 2013 | Adrian Cho

Posted on 03/15/2013 12:12:53 AM PDT by neverdem

Enlarge Image
sn-higgsboson.jpg
Plainly. An event display shows a Higgs candidate decaying to four electrons in the ATLAS detector. New measurements confirm that the Higgs is a Higgs.
Credit: ATLAS Collaboration/CERN

Eight months ago, physicists working with the world's biggest atom smasher—Europe's Large Hadron Collider (LHC)—created a sensation when they reported that they had discovered a particle that appeared to be the long-sought Higgs boson, the last missing piece in their standard model of particles and forces. Today, those researchers reported that the particle does indeed have the basic predicted properties of the standard model Higgs boson, clinching the identification.

"It sure does look like the standard model Higgs boson, you bet," says Sally Dawson, a theorist at Brookhaven National Laboratory in Upton, New York, who was not involved with the measurements.

It's a big step, at least semantically. Ever since the new particle was reported last July, officials at the home of the LHC—the European particle physics laboratory, CERN, near Geneva, Switzerland—have taken great care to describe the new thing as a "Higgs-like particle." Now, a CERN press release calls the particle "a Higgs boson." "That's a big deal for the community," Dawson says.

To make the positive identification, researchers relied not on dental records, but on observations of how the Higgs boson decays into combinations of other, more familiar particles. Key characteristics of the Higgs include its spin and its parity, a symmetry property. They can be determined by looking at correlations in the particle directions when, for example, a Higgs boson decays into two particles called Z bosons, each of which then decays into two particles called muons.

Although not yet entirely conclusive, current measurements show that the new particle has no spin (as opposed to 1 or 2 quantum units of it) and positive parity, researchers reported today at a meeting in La Thuile, Italy. That's exactly what the standard model predicts for the Higgs boson. The measurements were made by teams working independently with two massive particle detectors fed by the LHC, which are known as ATLAS and CMS. The teams simultaneously discovered the Higgs last summer. They have analyzed roughly twice as much data now as they had analyzed then.

Ironically, most physicists had been hoping for more than the standard model's plain vanilla Higgs. "That was certainly my feelings," says Daniel Green, a member of the CMS collaboration from Fermi National Accelerator Laboratory in Batavia, Illinois. "Of course, we want to discover something new."

In fact, the new results raise the prospect that the only new thing that the $5.5 billion LHC will produce will be the standard model Higgs boson, an outcome some physicists have described as their nightmare scenario. Physicists working with the LHC say that it's too early to rule out further discoveries. The LHC has been taking data since only 2010 and has collected less than 1% of the data researchers hope to obtain by 2030. Moreover, the LHC has been running at half-energy because of faulty connections between its massive superconducting magnets. It has just shut down for 2 years of repairs that will enable it to run at full energy starting in 2015. "This is a voyage of discovery and we're still in the shallows," Green says.

Once the LHC comes back on, one of the first things that researchers will look for is other Higgs bosons. The standard model includes only one of them. But more-elaborate theories—such as one known as supersymmetry, which posits a more massive partner for every known particle—suggest there could be several. "Why would there be only one Higgs?" Dawson says. "Why wouldn't there be two, three, whatever? There's no reason to preclude it." Dawson says that she won't be willing to give up on the hope for something new until the LHC has collected about a tenth of the aimed-for data set, sometime around 2020.

Until then, CERN officials will surely continue to issue press releases about "a Higgs boson"—and hope that something else comes up before they have to start talking about "the Higgs boson."


TOPICS: Culture/Society; News/Current Events; Testing
KEYWORDS: higgsboson; peterhiggs; physics; standardmodel

1 posted on 03/15/2013 12:12:53 AM PDT by neverdem
[ Post Reply | Private Reply | View Replies]

To: neverdem

Watch them worship the creation rather than the Creator.


2 posted on 03/15/2013 12:16:05 AM PDT by Olog-hai
[ Post Reply | Private Reply | To 1 | View Replies]

To: Olog-hai; neverdem

How could they be certain it’s the Higgs Boson when there’s nothing to compare it to?


3 posted on 03/15/2013 12:21:12 AM PDT by wastedyears (I'm a gamer not because I choose to have no life, but because I choose to have many.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: wastedyears

Just ask the Boson’s mate, I reckon...


4 posted on 03/15/2013 12:31:33 AM PDT by Smokin' Joe (How often God must weep at humans' folly. Stand fast. God knows what He is doing)
[ Post Reply | Private Reply | To 3 | View Replies]

To: wastedyears

Precisely.


5 posted on 03/15/2013 12:37:40 AM PDT by Olog-hai
[ Post Reply | Private Reply | To 3 | View Replies]

To: wastedyears

Hecky Durn prior... is as close as it comes, to recognition... Higgs Boson, were it only so acceptable.


6 posted on 03/15/2013 12:37:58 AM PDT by RedHeeler
[ Post Reply | Private Reply | To 3 | View Replies]

To: neverdem

This should earn somebody a REAL Nobel Prize.


7 posted on 03/15/2013 12:43:13 AM PDT by TChad (Call them Oppressives, not Progressives.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: neverdem

If true, a very big deal. The Standard Model is complete and experimentally verified.


8 posted on 03/15/2013 12:44:54 AM PDT by SpaceBar
[ Post Reply | Private Reply | To 1 | View Replies]

To: neverdem
Higg's Bo'son?

Paspatu .. right ?

No wait ... that'd be Fogg's bo'son.

9 posted on 03/15/2013 1:39:38 AM PDT by knarf (I say things that are true ... I have no proof ... but they're true)
[ Post Reply | Private Reply | To 1 | View Replies]

To: wastedyears

Because they theorized that there must be a particle that acts a certain way? Then they observe this particle and it matches their expectations.


10 posted on 03/15/2013 1:42:35 AM PDT by FreedomStar3028
[ Post Reply | Private Reply | To 3 | View Replies]

To: wastedyears

Because they theorized that there must be a particle that acts a certain way? Then they observe this particle and it matches their expectations.


11 posted on 03/15/2013 1:42:35 AM PDT by FreedomStar3028
[ Post Reply | Private Reply | To 3 | View Replies]

To: neverdem

Higgs Boson Positively Identified

No sooner had Bo'sun Higgs pulled in with the rest of the fleet did he find himself having too good a time with a couple of girls owning five names between the both of them and knocking back the electric alcohol that was ...


12 posted on 03/15/2013 1:58:29 AM PDT by Liberty Valance (Keep a simple manner for a happy life :o)
[ Post Reply | Private Reply | To 1 | View Replies]

To: neverdem

It is what it is?


13 posted on 03/15/2013 2:19:05 AM PDT by RedBallJet
[ Post Reply | Private Reply | To 1 | View Replies]

To: neverdem
I guess Sheldon must be excited!!!!
14 posted on 03/15/2013 3:35:41 AM PDT by Young Werther (Julius Caesar said "Quae cum ita sunt. Since these things are so.".)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Olog-hai

One must first understand the creation before they can understand its creator.


15 posted on 03/15/2013 4:18:08 AM PDT by soycd
[ Post Reply | Private Reply | To 2 | View Replies]

To: SpaceBar

Now they can get to work on explaining what sub particles make up a boson. They are going to need a better voltage meter.


16 posted on 03/15/2013 4:25:34 AM PDT by soycd
[ Post Reply | Private Reply | To 8 | View Replies]

To: Young Werther

Bazinga!


17 posted on 03/15/2013 4:59:02 AM PDT by Bloody Sam Roberts (Here once the embattled farmers stood... And fired the shot heard round the world.)
[ Post Reply | Private Reply | To 14 | View Replies]

To: Young Werther
I guess Sheldon must be excited!!!!

This is Sheldon's worst nightmare.

He's a string theory geek.

18 posted on 03/15/2013 5:15:41 AM PDT by seowulf ("If you write a whole line of zeroes, it's still---nothing"...Kira Alexandrovna Argounova)
[ Post Reply | Private Reply | To 14 | View Replies]

To: neverdem

“Higgs Boson Positively Identified”

One of Magnum’s old Navy buddies??

Who found the body, Magnum, Rick or TJ? The “the lads”, Zeus and Apollo?


19 posted on 03/15/2013 6:30:52 AM PDT by BwanaNdege ("To learn who rules over you simply find out who you are not allowed to criticize"- Voltaire)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BwanaNdege

Poor old Bosun Higgs.


20 posted on 03/15/2013 6:53:29 AM PDT by Olog-hai
[ Post Reply | Private Reply | To 19 | View Replies]

To: FreedomStar3028

Not quite it. This is why they are (in a preliminary fashion) calling it “a” Higgs Boson (possibly).


21 posted on 03/15/2013 6:55:00 AM PDT by Olog-hai
[ Post Reply | Private Reply | To 10 | View Replies]

To: El Gato; Ernest_at_the_Beach; Robert A. Cook, PE; lepton; LadyDoc; jb6; tiamat; PGalt; Dianna; ...
Bed bugs evolved unique adaptive strategy to resist pyrethroid insecticides

Painkillers mobilize blood stem cells

Blood test tracks cancer

Sticky problem snares wonder material - Graphene-like form of silicon proves hard to handle.

FReepmail me if you want on or off my health and science ping list.

22 posted on 03/15/2013 9:29:14 AM PDT by neverdem ( Xin loi min oi)
[ Post Reply | Private Reply | To 1 | View Replies]

To: seowulf
This is Sheldon's worst nightmare.

He's a string theory geek.

String theory: It's not even wrong!

23 posted on 03/15/2013 9:48:07 AM PDT by zeugma (Those of us who work for a living are outnumbered by those who vote for a living.)
[ Post Reply | Private Reply | To 18 | View Replies]

To: FreedomStar3028

It’s a pretty big deal when a theory predicts something that has never previously been observed. Then, once you know what the theory predicts, you go out, look for it, and find it.

Einstein predicting that gravity would bend light, which turned out to be true when tested was a big deal. So is this. The standard model, as gawky and ad hoc as it seems, makes good predictions of things we have never seen before and has done so pretty consistently.


24 posted on 03/17/2013 12:23:32 AM PDT by ModelBreaker
[ Post Reply | Private Reply | To 11 | View Replies]

To: ModelBreaker

Yes, I know this. I was posting in response to someone that asked “How do they know it’s the Higgs-Boson?”


25 posted on 03/17/2013 12:33:03 AM PDT by FreedomStar3028
[ Post Reply | Private Reply | To 24 | View Replies]

To: wastedyears
How could they be certain it’s the Higgs Boson

While they can't be 100% certain, it's "signature" is just what was predicted by theoretical considerations for the Higgs.

26 posted on 03/18/2013 8:14:19 PM PDT by El Gato ("The second amendment is the reset button of the US constitution"-Doug McKay)
[ Post Reply | Private Reply | To 3 | View Replies]

To: soycd
Now they can get to work on explaining what sub particles make up a boson.

Perhaps, and perhaps it's really "basic" particle, like the various quarks, and leptons.


27 posted on 03/18/2013 8:20:55 PM PDT by El Gato ("The second amendment is the reset button of the US constitution"-Doug McKay)
[ Post Reply | Private Reply | To 16 | View Replies]

To: El Gato

Considering the fact that we have not been able to observe anything beyond our universe or anything smaller than the elementary particles, we can’t see the bigger or smaller picture.

Infinity leaves a lot of room for improvement.


28 posted on 03/19/2013 3:58:13 AM PDT by soycd
[ Post Reply | Private Reply | To 27 | View Replies]

To: neverdem

Beyond Einstein’s Horizon

To sciencenews.org, re
“Study of energy waves formed during the Big Bang supports Einstein’s prediction that a strange, invisible force is pushing the universe apart”
http://www.sciencenews.org/view/generic/id/340163/title/FOR_KIDS_%E2%80%98Ruler%E2%80%99_to_measure_space

A. From Universe-Energy-Mass-Life Compilation
http://universe-life.com/2012/02/03/universe-energy-mass-life-compilation/

From the Big-Bang it is a rationally commonsensical conjecture that the gravitons, the smallest base primal particles of the universe, must be both mass and energy, i.e. inert mass yet in motion even at the briefest fraction of a second of the pre Big Bang singularity. This is rationally commonsensical since otherwise the Big would not have Banged, the superposition of mass and energy would not have been resolved.
The universe originates, derives and evolves from this energy-mass dualism which is possible and probable due to the small size of the gravitons.
Since gravitation Is the propensity of energy reconversion to mass and energy is mass in motion, gravity is the force exerted between mass formats.
All the matter of the universe is a progeny of the gravitons evolutions, of the natural selection of mass, of some of the mass formats attaining temporary augmented energy constraint in their successive generations, with energy drained from other mass formats, to temporarily postpone, survive, the reversion of their own constitutional mass to the pool of cosmic energy fueling the galactic clusters expansion set in motion by the Big Bang.

B. From: 21st century science whence and whither
http://universe-life.com/2011/12/13/21st-century-science-whence-and-whither/

1. Dark energy and matter YOK. Per E=Total[m(1 + D)] all the energy and matter of the universe are accounted for.
Adopt space mass distance concept, constant rate mass-to-energy reconversion.

2. Higgs Particle YOK. Mass forms below some value of the above D. All mass formats evolve from the gravitons.

3. Galactic clusters formed by conglomeration?
No. Galactic clusters formed by Big-Bang’s fragments dispersion, evidenced by their Newtonian behavior including their separation acceleration.

4. The universe expansion is fueled by the mass-to-energy constant rate reconversion. Eventually, as expansion will slow down, will run out of massfuel, gravity will overcome expansion and initiate empansion back to singularity. The universe is a cyclic array of energy-mass dualism, between nearly all-energy and all-mass poles, under omnipresent gravity. Gravity is the monotheism and re-genesis of the universe.

Dov Henis (comments from 22nd century)
http://universe-life.com/
-The Genome is a base organism evolved, and continuously modified, by the genes of its higher organism as their functional template.
-The 20yrs development, and comprehensive data-based scientism worldview, in a succinct format.

PS: For sciencenews is “Jewish” a taboo adjective? DH


29 posted on 06/20/2013 11:31:56 AM PDT by Dov Henis
[ Post Reply | Private Reply | To 1 | View Replies]

To: soycd

Excellent, excellent response!!!


30 posted on 06/20/2013 11:36:33 AM PDT by Hegewisch Dupa
[ Post Reply | Private Reply | To 15 | View Replies]

To: neverdem

31 posted on 06/20/2013 11:39:19 AM PDT by JoeProBono (Mille vocibus imago valet;-{)
[ Post Reply | Private Reply | To 1 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson