<atl>Observation of D0→ρ0γ and Search for CP Violation in Radiative Charm Decays</atl>

Journal:
Physical Review Letters
Published:
DOI:
10.1103/physrevlett.118.051801
Affiliations:
80
Authors:
164
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Research Highlight

Getting to the heart of the matter imbalance

© kyoshino / Getty Images

© kyoshino / Getty Images

Scientists are exploring new physics to explain why there is more matter than antimatter in the universe, according to a study published in Physical Review Letters.

The Big Bang should have created equal amounts of matter and antimatter in the early universe, but today there is far more matter than antimatter. The existence of so-called charge-parity (CP) violations, differences in the behaviour of matter and antimatter particles, could account for this imbalance.

Using data from the Belle detector at the KEKB collider in Japan, an international team of physicists, including researchers from the Moscow Engineering Physics Institute, have for the first time observed the decay of subatomic particles called charmed or ‘D’ mesons, which are the lightest mesons, allowing them to search for CP violations.

Although no CP violations were observed, the work could provide deeper insights into the origins of matter.

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References

  1. Phys. Rev. Lett. 118, 051801 (2017). doi: 10.1103/physrevlett.118.051801
Institutions Authors Share
Jozef Stefan Institute (IJS), Slovenia
8.000000
 0.05
High Energy Accelerator Research Organization (KEK), Japan
7.500000
 0.05
G.I. Budker Institute of Nuclear Physics (INP), SB RAS, Russia
7.000000
 0.04
Novosibirsk State University (NSU), Russia
7.000000
 0.04
Pacific Northwest National Laboratory (PNNL), United States of America (USA)
6.000000
 0.04
Tata Institute of Fundamental Research (TIFR), India
4.500000
 0.03
Wayne State University, United States of America (USA)
4.500000
 0.03
Indian Institute of Technology Madras (IIT Madras), India
4.000000
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Niigata University, Japan
4.000000
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Nagoya University, Japan
4.000000
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The University of Melbourne (UniMelb), Australia
4.000000
 0.02
Korea University, South Korea
4.000000
 0.02
University of Cincinnati (UC), United States of America (USA)
4.000000
 0.02
The Graduate University for Advanced Studies (Sokendai), Japan
3.500000
 0.02
Charles University (CU), Czech Republic
3.000000
 0.02
Hanyang University (HYU), South Korea
3.000000
 0.02
German Electron Synchrotron (DESY), Germany
3.000000
 0.02
National Taiwan University (NTU), Taiwan
3.000000
 0.02
Kyungpook National University (KNU), South Korea
3.000000
 0.02
Ludwig Maximilians University of Munich (LMU), Germany
3.000000
 0.02
Virginia Polytechnic Institute and State University (Virginia Tech), United States of America (USA)
2.500000
 0.02
Moscow Institute of Physics and Technology - State University (MIPT), Russia
2.333333
 0.01
P.N. Lebedev Physical Institute (LPI), RAS, Russia
2.333333
 0.01
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Russia
2.333333
 0.01
The University of Tokyo (UTokyo), Japan
2.000000
 0.01
University of Tabuk (UT), Saudi Arabia
2.000000
 0.01
The Henryk Niewodniczanski Institute of Nuclear Physics (IFJ PAN), PAS, Poland
2.000000
 0.01
University of Hawai'i at Manoa (UH Mānoa), United States of America (USA)
2.000000
 0.01
Max Planck Institute for Physics (MPP), Germany
2.000000
 0.01
Sungkyunkwan University (SKKU), South Korea
2.000000
 0.01
Nara Women's University (NWU), Japan
2.000000
 0.01
Tohoku University, Japan
2.000000
 0.01
Indiana University Bloomington (IUB), United States of America (USA)
2.000000
 0.01
University of Florida (UF), United States of America (USA)
2.000000
 0.01
Kennesaw State University (KSU), United States of America (USA)
2.000000
 0.01
Yonsei University, South Korea
2.000000
 0.01
University of Science and Technology of China (USTC), China
2.000000
 0.01
Kanagawa University, Japan
2.000000
 0.01
Technical University of Munich (TUM), Germany
2.000000
 0.01
Institute of Science Tokyo (Science Tokyo), Japan
2.000000
 0.01
University of Ljubljana, Slovenia
1.000000
 0.01
The University of Sydney (USYD), Australia
1.000000
 0.01
Indian Institute of Science Education and Research Mohali (IISER Mohali), India
1.000000
 0.01
University of Maribor, Slovenia
1.000000
 0.01
National Central University (NCU), Taiwan
1.000000
 0.01
Korea Institute of Science and Technology Information (KISTI), South Korea
1.000000
 0.01
Gyeongsang National University (GNU), South Korea
1.000000
 0.01
Indian Institute of Technology Bhubaneswar (IIT-BBS), India
1.000000
 0.01
Division V - Physics and Mathematics, KIT, Germany
1.000000
 0.01
Chonnam National University, South Korea
1.000000
 0.01
Soongsil University, South Korea
1.000000
 0.01
Giessen University (JLU), Germany
1.000000
 0.01
University of Miyazaki, Japan
1.000000
 0.01
Indian Institute of Technology Guwahati (IIT Guwahati), India
1.000000
 0.01
Toho University, Japan
1.000000
 0.01
Luther College, United States of America (USA)
1.000000
 0.01
University of Bonn (Uni Bonn), Germany
1.000000
 0.01
University of Pittsburgh (Pitt), United States of America (USA)
1.000000
 0.01
Swiss Federal Institute of Technology Lausanne (EPFL), Switzerland
1.000000
 0.01
University of the Basque Country (UPV/EHU), Spain
1.000000
 0.01
Institute for High Energy Physics (HEPHY), ÖAW, Austria
1.000000
 0.01
Yamagata University, Japan
1.000000
 0.01
Beihang University (BUAA), China
1.000000
 0.01
University of Nova Gorica (UNG), Slovenia
1.000000
 0.01
Tokyo Metropolitan University (TMU), Japan
1.000000
 0.01
National United University, Taiwan
1.000000
 0.01
Institute of High Energy Physics (IHEP), CAS, China
1.000000
 0.01
Stefan Meyer Institute for Subatomic Physics (SMI), ÖAW, Austria
1.000000
 0.01
The Nippon Dental University, Japan
1.000000
 0.01
King Abdulaziz University (KAU), Saudi Arabia
0.500000
 0.00
King Abdulaziz City for Science and Technology (KACST), Saudi Arabia
0.500000
 0.00
Aligarh Muslim University (AMU), India
0.500000
 0.00
INFN Section in Torino, Italy
0.500000
 0.00
University of Turin (UNITO), Italy
0.500000
 0.00
Showa Pharmaceutical University, Japan
0.333333
 0.00
Theory Center, KEK, Japan
0.333333
 0.00
RIKEN Nishina Center for Accelerator-Based Science (RNC), Japan
0.333333
 0.00
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