×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

  • 28 February, 2023

  • 5 Min Read

The precise magnetic moment of an electron

The precise magnetic moment of an electron

  • By accurately measuring the magnetic moment of the electron, physicists recently created history in the field of metrology.
  • It is notable because it offers the Standard Model of particle physics' most accurate test to date.
  • According to the article, the measurement was 0.13 parts per trillion (ppt), which is 2.2 times more precise than the previous best record from 14 years ago.

What is the Standard Model?

  • The Standard Model (SM) is a theory that explains the characteristics of subatomic particles, categorises them into groups, and predicts how electromagnetic, weak nuclear, and strong nuclear forces affect them.
  • But it cannot account for gravity.
  • One of the most successful theories in physics, the SM predicted the presence of the Higgs boson, which was confirmed in 2012. It has also accurately predicted the characteristics of many other particles.
  • Since the Higgs boson is an elementary particle, it cannot be divided into more minor parts. It possesses mass but no electric charge, spin, or other intrinsic features.
  • The Higgs boson has a mass of around 125 billion electron volts, or 133 times that of a proton.
  • Despite its triumphs, the Standard Model is unable to explain a number of phenomena, including the universe's overabundance of matter compared to antimatter, dark matter, and dark energy.
  • Further research in this field could help us understand more about the fundamental nature of the universe and how it operates.

What is Electron’s Magnetic Moment?

  • Its magnetic moment, which is connected to the electron's charge and intrinsic spin, is a key characteristic of the particle.
  • An electron's magnetic moment is a crucial physical characteristic that helps to explain a wide range of atomic and molecular physics phenomena, including how electrons behave in magnetic fields and the magnetic characteristics of materials.

Source: The Hindu


Formation Day

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

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

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

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

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

DNA

03 Dec,2025

Toppers

Search By Date

Newsletter Subscription
SMS Alerts

Important Links

UPSC GS Mains Crash Course - RAW Prelims Answer Key 2024