Neutrinos

Tags:
GS-III
S&T
Space
S&T

Neutrinos

It was recently reported by physicists using the Kamioka Liquid Scintillator Antineutrino Detector (KamLAND) in Japan that despite reviewing two years' worth of data, they were unable to detect any evidence that neutrinos might be their own anti-particles.?????

About KamLAND Experiment:

The neutrinoless double beta-decay is an event that KamLAND searches for.
Two neutrons in an atom decay normally into two protons by generating two electrons and two electron antineutrinos.
The absence of anti-neutrinos in neutrinoless double beta decay can only occur if anti-neutrinos are only various varieties of neutrinos.

About Neutrinos.

After photons (light particles), neutrinos are the second most common particle in the universe and are abundantly produced in star cores.
These characteristics provide windows into the universe's microscopic structure due to their ubiquity.
Consider the unanswered topic of whether neutrinos are their own antiparticles. If they were, scientists would have the means to explain why there is more matter in the universe than antimatter.
Relevance: Neutrino oscillations and their interactions with mass must be probed in order to understand the universe's formation.
Neutrino sources: In a supernova, when cosmic rays strike atoms, during radioactive decays, and other processes, neutrinos are produced.

What are anti-particles?

An antiparticle exists for every constituent particle. If the two come into contact, a burst of energy will instantly annihilate the other.
The positron is the antiparticle of the electron. Neutrinos also have anti-neutrinos.
Yet, because they have opposing charges, an electron and a positron may be distinguished from one another.
Both neutrinos and anti-neutrinos lack any distinguishing characteristics, such as an electric charge.
Subatomic particles can be divided into two categories: matter particles and force-carrying particles. Neutrinos are fermions, which are subatomic particles. Dirac fermions and Majorana fermions are two subtypes of fermions. Whereas Majorana fermions are their own anti-particles, Dirac fermions are not.

Formation Day

03 Dec, 25
SHARE

On 1st November, eight Indian states—Andhra Pradesh, Chhattisgarh, Haryana, Karnataka, Kerala, Madhya Pradesh, Punjab, and Tamil Nadu—along with five Union Territories—Andaman and Nicobar Islands, Chandigarh, Delhi, Lakshadweep, and Puducherry—celebrate their Formation Day. This date marks an important milestone in India

Turtle (Kachhua) Wildlife Sanctuary

02 Dec, 25
SHARE

The Turtle Wildlife Sanctuary, also known as the Kachhua Sanctuary, is located in the Varanasi district of Uttar Pradesh. It is recognised as India’s first freshwater turtle wildlife sanctuary, established to conserve endangered turtle species and support the ecological health of the Ganga River. Location and Extent The sanctuary co

Introduction of AI and Computational Thinking (CT) in

02 Dec, 25
SHARE

The Ministry of Education plans to introduce Artificial Intelligence (AI) and Computational Thinking (CT) from Class 3 onwards in the 2026–27 academic year. This initiative is part of the National Curriculum Framework for School Education (NCF-SE) 2023 and aligns with the National Education Policy (NEP) 2020. The aim is to prepare student

Sal Tree

02 Dec, 25
SHARE

Scientists from the Environment Department of Himachal Pradesh University (HPU) in Shimla have recently revealed that the Sal tree (Shorea robusta) is the most effective natural air purifier for combating rising pollution levels. Their findings highlight the tree’s superior capacity to trap dust, absorb gases, and cleanse the air compared

US Resumes Nuclear Weapon Testing

02 Dec, 25
SHARE

The President of the United States has ordered the resumption of nuclear weapon testing after a gap of 33 years, the last test being in 1992. This decision marks a significant shift in global nuclear policy and has far-reaching implications for geopolitics, the environment, and international security. Status of Global Nuclear Weapon Testing