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Science

LHCb Confirms Existence of Exotic Hadrons 99

Posted by Soulskill
from the pushing-back-the-boundaries-of-physics dept.
An anonymous reader sends this news from CERN: "The Large Hadron Collider beauty (LHCb) collaboration today announced results that confirm the existence of exotic hadrons – a type of matter that cannot be classified within the traditional quark model. Hadrons are subatomic particles that can take part in the strong interaction – the force that binds protons inside the nuclei of atoms. Physicists have theorized since the 1960s, and ample experimental evidence since has confirmed, that hadrons are made up of quarks and antiquarks that determine their properties. A subset of hadrons, called mesons, is formed from quark-antiquark pairs, while the rest – baryons – are made up of three quarks. ... The Belle Collaboration reported the first evidence for the Z(4430) in 2008. They found a tantalizing peak in the mass distribution of particles that result from the decays of B mesons. Belle later confirmed the existence of the Z(4430) with a significance of 5.2 sigma on the scale that particle physicists use to describe the certainty of a result. LHCb reports a more detailed measurement of the Z(4430) that confirms that it is unambiguously a particle, and a long-sought exotic hadron at that. They analyzed more than 25,000 decays of B mesons selected from data from 180 trillion (180x10^12) proton-proton collisions in the Large Hadron Collider."
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LHCb Confirms Existence of Exotic Hadrons

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  • by Anonymous Coward on Wednesday April 09, 2014 @01:58PM (#46707115)

    My Large Hardon Collided with your mom's pussy last night.

    She said it wasn't all that large.

  • by hamburger lady (218108) on Wednesday April 09, 2014 @03:09PM (#46707815)

    Fuck it, we're doing five quarks.

    Would someone tell me how this happened? We were the fucking vanguard of particles in this universe. The meson was the hadron to own. Then the other guy came out with a three-quark nucleon. Were we scared? Hell, no. Because we hit back with a little thing called the proton. That's three quarks and a positive charge. For positivity. But you know what happened next? Shut up, I'm telling you what happened—the bastards went to four quarks. Now we're standing around with our cocks in our hands, selling three quarks and a charge. Charge or no, suddenly we're the chumps. Well, fuck it. We're going to five quarks.

"No job too big; no fee too big!" -- Dr. Peter Venkman, "Ghost-busters"

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