Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Physicists' Analysis Leads to Discovery of New Particle

University of Michigan physicists played a leading role in the discovery of a new particle, the Omega b baryon, which is an exotic relative of the proton. It was detected for the first time in a particle accelerator at Fermi National Accelerator Laboratory (Fermilab) in Illinois, Fermilab has announced.

The heavy particle is scarce today, but scientists believe it was abundant soon after the Big Bang.

"This discovery helps us understand how matter was formed in the universe. It shows the critical success of the quark model and gives us new insight into the strong force, which binds quarks together to form larger particles," said Jianming Qian, a professor in the Department of Physics.

This discovery is largely attributed to the work done by Qian, physics postdoctoral fellow Eduard de la Cruz Burelo and physics professor Homer Neal. They are among 600 physicists from 90 institutions involved in DZero, the international experiment at Fermilab that produced these results.

"The contributions from these three team members from the University of Michigan were extremely important to this discovery," said Fermilab's DZero spokesman Dmitri Denisov.

The Michigan scientists pressed to re-examine previously gathered data for evidence of this particle, rather than wait for new data. "Their persistence paid off," said Denisov, who pointed out that these three Michigan scientists were also instrumental in DZero's discovery of a particle called the cascade b baryon last year.

Qian said detecting the Omega b baryon was like finding a needle in a haystack. The U-M team developed algorithms that allowed them to analyze almost 100 trillion particle collisions to find 18 events with the distinctive characteristics expected from the decay of the Omega b baryon.

In the collisions in the experiment, protons and anti-protons traveling near the speed of light hit head on, occasionally producing exotic heavy particles such as the Omega b baryon. The baryon travels about one millimeter before it decays into other particles.

Baryons are particles that make up the visible matter in the universe today. Protons and neutrons are the lightest baryons. All baryons are made of different combinations of three quarks. Quarks are smaller particles that come in six "flavors:" up, down, charm, strange, top and bottom. Scientists organize these flavors into three families.

Protons and neutrons are made of the quarks in the first family: up and down quarks. This new particle is the first baryon ever detected that is made only of quarks from the other two families. The Omega b baryon has two strange quarks and one bottom quark.

DZero is supported by the U.S. Department of Energy, the National Science Foundation and several international funding agencies.

Burelo, Neal, and Qian are among the co-authors of a paper on the finding that has been submitted to Physical Review Letters. The paper is called "Observation of the doubly strange b baryon."

For more information:
Jianming Qian:,2708,,00.html?ID=262
Homer Neal:


Nicole Casal Moore | Newswise Science News
Further information:

Further reports about: Big Bang Fermilab Omega b baryon ProTon Quarks Universe neutrons

More articles from Physics and Astronomy:

nachricht Move over, lasers: Scientists can now create holograms from neutrons, too
21.10.2016 | National Institute of Standards and Technology (NIST)

nachricht Finding the lightest superdeformed triaxial atomic nucleus
20.10.2016 | The Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

New method increases energy density in lithium batteries

24.10.2016 | Power and Electrical Engineering

International team discovers novel Alzheimer's disease risk gene among Icelanders

24.10.2016 | Life Sciences

New bacteria groups, and stunning diversity, discovered underground

24.10.2016 | Life Sciences

More VideoLinks >>>