Friday, July 17, 2020

Discovery of a new particle: A Charming Tetraquark

This article is by

Share this article

Article Contributor(s)

Hardi Talwani

Article Title

Discovery of a new particle: A Charming Tetraquark

Publisher

Global Views 360

Publication Date

July 17, 2020

URL

The Large Hadron Collider

The Large Hadron Collider | Source: Anna Pantelia via CERN

While the world is horrified by the novel Coronavirus, scientists at the European Centre for Nuclear Research (CERN) announced the discovery of a never seen before tetraquark. Any finding in particle physics is a phenomenal one because it could tell us a lot about the origins of the universe and how everything came to be. And this discovery is quite charming and quarky (quirky).

Quarks are the elementary particles so any further division of these particles is not possible. This means everything in the universe is ultimately a combination of Quarks. Any new discovery of Quarks  therefore increase our understanding about the origin of universe

When three Quarks come together, they form familiar particles known as Baryons, for instance, protons and neutrons, found in the nucleus of an atom. A tetraquark, in particle physics, is an exotic meson composed of four quarks.

Murray Gell-Mann, recipient of the 1969 Nobel Prize in Physics for his work on the theory of Elementary particles, chose the name ‘Quark’. Another scientist,  George Zweig from CERN also proposed the Quark theory independently of Gell-Mann.

All the new particles are detected using particle accelerators where particles are accelerated at almost the speed of light and collide to look into their subsets. It is like knocking two rocks together so that they break into smaller constituents.

The most recent tetraquark, named X (6900) was discovered by CERN physicists while working on LHCb (Large Hadron Collider beauty experiment). The already known tetraquarks contain a particular combination of two relatively heavy quarks and two light Quarks. On the other hand X(6900) consists of four heavy Quarks: two Quarks and two anti-Quarks.

This exclusive particle made of unusual combinations is a perfect setting for understanding the fundamental force of nature known as Strong Interaction. The strong force is vital to comprehend as it binds together protons, neutrons and the nucleus that ultimately make up matter. Another perk of X(6900)  is its relatively heavy mass, so these are simpler to look at and are more stable as compared to notoriously fast moving-lighter ones.

The paper written by 800 scientists is yet to be peer-reviewed. The bump observed has a statistical significance of more than five sigma (standard deviations) that is good enough to claim the discovery of a new particle.

In any scenario, this unusual discovery will serve as a piece for completing the puzzle of our universe while serving as evidence of the presence of new particles not yet found.

Support us to bring the world closer

To keep our content accessible we don't charge anything from our readers and rely on donations to continue working. Your support is critical in keeping Global Views 360 independent and helps us to present a well-rounded world view on different international issues for you. Every contribution, however big or small, is valuable for us to keep on delivering in future as well.

Support Us

Share this article

Read More

February 4, 2021 4:47 PM

Kitchen Garden: An unusual arsenal in Kenya’s fight against malnutrition

Vegetable gardens have been in vogue since long across the world as a hobby to source  some fresh vegetables for household consumption. However in Kenya, the government and citizens both have moved towards taking it to the next level.

Hassani Oyo, a musician and resident of Nairobi, Kenya, has started vertical bag gardening in the backyard of his home to grow exotic vegetables like cabbage, spinach and kale for his own use as well as for sales to his neighbours and local vegetable vendors. This low cost method of gardening uses minimal farming space and very less water.

Another gardening story emerges from Busia County in western Kenya. where a local community-based organization, Sustainable Income Generating Investment (SINGI) is promoting the use of Kitchen Gardens. SINGI in partnership with other organizations are actively involved in training farmer groups about healthy agricultural practices and sharpening their production skills.

Roselida Orodi, the chairperson of Esikoma Ushirika Farmers Self Help Group states that, “Most households produce enough vegetables for domestic consumption with a surplus which is usually sold to the local market and beyond”. The biggest advantage is that these vegetables are able to withstand high temperatures. During summer, when the demand increases, they are usually sold for higher prices to earn good profits.

Jessica Muhonje of Singingire vegetable farmers group, says that she sells vegetables worth 15 U.S dollars per day. With indigenous vegetables gaining popularity, she adds that, “People flock to my homestead to purchase the vegetables”.

Kenyan government has also launched the “One Million Kitchen Gardens Plan” for households across the country. Brainchild of Agriculture Chief Administrative Secretary, Anne Nyaga, the program aims to use kitchen gardens as a tool to achieve food security, fight malnutrition, and to deal with the food crisis caused by the Covid-19 pandemic. In the initial phase kitchen garden kits were provided to 15,000 households of  Makueni county. “We would like to put emphasis on a balanced diet through these kits so that we can be able to boost our immunity and create an immunity that is able to fight COVID-19 and other diseases” says Anne Nyaga. She also adds, “The government is launching a campaign to establish kitchen vegetable gardens, we have issued guidelines to support both rural and urban dwellers with technologies for setting up within the resources available”.

These success stories inspire many others to join the kitchen garden bandwagon in Kenya. Setting up a kitchen garden is not tough, according to Mr. Oscar Ludelu, a landscaper and horticulturist. However, a few factors, like cost and what type of garden one needs is to be kept in mind before starting a kitchen garden.

Read More