Posts on IPNS

Dr. Minxi He at KEK Theory Center got the Outstanding Presentation Award

Tue, 22 Feb 2022 10:00:00 +0900

In the 30th Workshop on General Relativity and Gravitation in Japan (JGRG30), Dr. Minxi He who is a researcher at KEK Theory Center got the Outstanding Presentation Award. JGRG is the workshop related to general theory of relativity and gravity and it has been held in Japan every year from 1991 (reference: https://www.tsujikawa.phys.waseda.ac.jp/jgrg30/). Outstanding Presentation Award is given to the researcher who made a great presentation.

NCBJ in Poland, KEK and UTokyo Sign MoU to Promote Hyper-Kamiokande Project

Mon, 14 Feb 2022 08:00:00 +0900

National Centre for Nuclear Research (NCBJ) in Poland, High Energy Accelerator Research Organization (KEK) and The University of Tokyo (UTokyo) signed a memorandum of understanding (MoU), which aimed to promote the Hyper-Kamiokande international scientific research project, whose main detector has been under construction with plans to start operation in 2027 at Kamioka, Hida City, Gifu Prefecture in Japan. Nineteen countries showed their interest in participating in this Japan-led project and Poland is the first nation to sign MoU.

A new logo for the Institute of Particle and Nuclear Studies.

Wed, 11 Aug 2021 10:00:00 +0900

A new logo for the Institute of Particle and Nuclear Studies has been created. The logo shows “IPNS”, the Institute’s abbreviation. The ellipse with an “i” dot represents both an electron in an atom and a particle accelerator or collider, while the “P” and “N” are woven together, as are the fields of particle and nuclear physics. The two blue colors are inspired by the KEK logo, showing that IPNS is a part of KEK.

【J-PARC Topics】Dr. Chris J. Densham, innovator of neutrino production targets, wins the Institute of Physics Prize for Outstanding Professional Contributions

Fri, 04 Jun 2021 08:00:00 +0900

Dr. Chris J. Densham at Rutherford Appleton Laboratory, United Kingdom, who has been designing and developing the neutrino production target, beam window, and other components at the J-PARC neutrino facility, wins the 2021 Institute of Physics Prize for Outstanding Professional Contributions to accelerator science and technology. For details, please check the following article. 2021.06.03J-PARC TopicsDr. Chris J. Densham, innovator of neutrino production targets, wins the Institute of Physics Prize for

【HK Information】Groundbreaking ceremony for Hyper-Kamiokande held in Hida, Japan Due to start operation in 2027

Wed, 02 Jun 2021 08:00:00 +0900

The groundbreaking ceremony for the Hyper-Kamiokande, a new world-leading international scientific research project which is set to start experiments in 2027, was held at its construction site in Hida City, Gifu Prefecture, Japan on May 28, 2021. As nine areas including Tokyo and Osaka were under the COVID-19 state of emergency, about half of the 50 participants attended online. (Cited from the following article) For details, please check the article

【J-PARC Information】The Announcement of the Next Director of J-PARC Center

Fri, 26 Feb 2021 10:00:00 +0900

Prof. Takashi KOBAYASHI, who is the current Deputy Director of Institute of Particle and Nuclear Studies/Head of Particle and Nuclear Physics Division, J-PARC Center has been appointed as the next Director of J-PARC Center.

UTokyo and KEK sign MoU to promote Hyper-Kamiokande project

Mon, 25 May 2020 10:00:00 +0900

The University of Tokyo
High Energy Accelerator Research Organization (KEK)
Japan Proton Accelerator Research Complex (J-PARC) Center

The University of Tokyo and High Energy Accelerator Research Organization (KEK) signed a memorandum of understanding (MoU) which aimed to strengthen the existing MoU between Institute for Cosmic Ray Research (ICRR), UTokyo and Institute of Particle and Nuclear Studies (IPNS), KEK by establishing official organizations to promote the Japan-led Hyper-Kamiokande international scientific research project, in May 2020.

【WEB RELEASE】Belle II explores new “portal” into dark matter - First results from the Belle II Experiment

Tue, 07 Apr 2020 00:00:00 +0900

The Belle II international collaboration has published its first results in a paper selected as an Editors’ Suggestion in Physical Review Letters. The paper reports the first search for a new type of elementary particle that may act as a “portal” between ordinary matter and dark matter, which is understood to make up some 85% of the metter in the universe.

KEK-TRIUMF Exchange Program for Early Career Researchers successfully concluded

Mon, 06 Apr 2020 10:00:00 +0900

KEK and TRIUMF jointly organised the KEK-TRIUMF Exchange Program for Early Career Researchers; EPECR. Three young researchers from TRIUMF, Canada’s particle accelerator centre, visited the KEK Institute of Particle and Nuclear Studies (IPNS). This program aims to foster early career researchers who will play a key role in accelerator science and its related fields, and make new collaborations between KEK and TRIUMF (refer to TRIUMF website: https://www.triumf.ca/node/26058 ).

About handling KEK users for novel coronavirus　- Message for KEK non-Japanese users -

Sun, 08 Mar 2020 10:00:00 +0900

KEK announced the message for KEK non-Japanese users about handling KEK users for novel coronavirus.

Dr. Song Qin-Tao at KEK IPNS Theory Center got the 3rd SOKENDAI Award

Fri, 08 Nov 2019 10:00:00 +0900

Dr. Song Qin-Tao at Department Particle and Nuclear Physics, School of High Energy Accelerator Science, The Graduate University for Advanced Studies, SOKENDAI and KEK Theory Center (at the time) got the 3rd SOKENDAI Award. The award ceremony was held after commencement on September 27, 2019. The SOKENDAI Award was founded in Academic Year 2018 to commend the students who have accomplished their outstanding research and have been conferred their degrees with the excellent doctoral thesis (cited from SOKENDAI website: https://www.soken.ac.jp/news/6385/ ).

Belle II changing of the guard with Prof. Toru Iijima as the new spokesperson.

Thu, 27 Jun 2019 10:00:00 +0900

2On June 21, 2019, Prof. Tom Browder (University of Hawaii) turned over the role of the Belle II spokesperson to Prof. Toru Iijima (Nagoya University). Prof. Browder has led the Belle II experiment since 2013 when the Belle II experiment began its upgrade, and watched over the start of the Belle II physics run (Phase3).

Undergraduate Students from the Radboud University Nijmegen visit KEK and J-PARC

Wed, 08 May 2019 10:00:00 +0900

Twenty undergraduate and graduate students from the Radboud University Nijmegen, Netherland visited KEK and J-PARC from April 19 to 22, 2019. The Radboud University offers opportunities for undergraduate students to visit foreign research institutes every year as a part of the education program “Marie Curie Study Tours Foundation of the Radboud University in Nijmegen”. In this year, students chose to come to Japan.

The 1st “Belle II Physics Week” was held at KEK

Fri, 16 Nov 2018 09:00:00 +0900

The Belle II Physics Week (Belle II Theory Interface Platform, B2TiP, Workshop) was held October 22-26, 2018 on the Tsukuba campus of KEK in the 3-go-kan seminar hall. The Physics Week continued the series of meetings previously held as part of the Belle II Theory Interface Platform series, which led to the publication of the Belle II Physics Book. This workshop was held just after the Belle II General Meeting (B2GM) which is a tri-annual plenary meeting in which a large number of Belle II members from many countries participate.

The 7th TYL Science Camp for Japanese Female Students Held at KEK Tsukuba Campus

Wed, 04 Apr 2018 09:00:00 +0900

Japanese 30 female students from high schools or national colleges of technology participated in the TYL Science Camp, which was held on April 3rd - 4th at KEK Tsukuba campus. The TYL Science Camp has been organized every year since 2012 by the KEK Gender Equality Office, the TYL-FJPPL (Toshiko Yuasa Laboratory‐France-Japan Particle Physics Laboratory), Ochanomizu University and Nara Women’s University.

COMET Experimental Group Successfully Extracts a Clean 8GeV Pulsed Proton Beam from J-PARC’s 30GeV Main Ring to Hadron Experimental Facility

Thu, 08 Mar 2018 09:00:00 +0900

At the J-PARC research facility in Tokai village, Ibaraki prefecture, extraction tests of a clean 8GeV pulsed proton beam to the Hadron Experimental Facility have been successfully completed by a team drawn from the Accelerator Laboratory Group, Hadron Beam Line Group and the COherent Muon to Electron Transition (COMET) Experimental Group.

Israeli Ambassador to Japan Visits KEK Tsukuba Campus for Flag Raising Ceremony Commemorating Israel's Participation as 25th Member Nation of Belle II Experiment

Fri, 23 Feb 2018 09:00:00 +0900

On February 22, the Ambassador of Israel to Japan, Her Excellency Yaffa Ben-Ari, and her party visited KEK Tsukuba Campus to attend a ceremony of raising the Israeli national flag at Tsukuba Experimental Hall, where the Belle II detector is installed and is being prepared for the first beam collision this spring. The Israeli flag joined the flag of 24 other nations on B2 floor of Tsukuba Experimental Hall as Israel became the 25th member nation of the Belle II experiment.

【Belle II Experiment】QCS Superconducting Magnets for Final Focusing of e-, e+ Beams Connected to Central Beam Pipes inside Belle II, Remote Vacuum Connection (RVC) Works Successfully.

Fri, 26 Jan 2018 10:00:00 +0900

From 10th to 15th of January, 2018, at KEK Tsukuba campus, where the SuperKEKB accelerator and the Belle II detector are being prepared for the first collisions of electrons (e-) and positrons (e+), the QCS superconducting magnets for final focusing of the beams were moved to the core of Belle II detector from both forward and backward sides and connected to the central beam pipe by the Remote Vacuum Connection (RVC) system, proposed and developed by Deutsches Elektronen-Synchrotron (DESY), one of the important collaborators of the Belle II Experiment.

【Belle II Experiment】Preparation for Commissioning in Full Swing after Successful BEAST Detector Installation

Sat, 18 Nov 2017 09:00:00 +0900

Installation of the BEAST detector carried out on November 18, 2017 at Tsukuba Experimental Hall on the Tsukuba campus of KEK. The BEAST detector successfully inserted into the core of Belle II at 2:45pm (GMT+9:00) and preparation for next-year’s commissioning of new Belle II at the upgraded SuperKEKB accelerator is in full swing.

【BelleⅡ】The Test of the BEAST Detector System Started

Fri, 10 Nov 2017 09:00:00 +0900

In preparation for the next-year commissioning of BelleⅡwith the first collision of electron-positron beams at the SuperKEKB, the last test of BEAST detectors started at Tsukuba Experimental Hall, KEK Tsukuba campus on October 31. It is planned to insert into the core of BelleⅡin late November.

French Ambassador Visits KEK Tsukuba to Attend a Ceremony of Raising French National Flag, Commemorating 24th National Participation in BelleⅡ

Fri, 13 Oct 2017 10:00:00 +0900

On October 11, the Ambassador of France to Japan, His Excellency Laurent Pic and his party visited KEK Tsukuba campus to attend a ceremony of raising the French national flag at the KEKB Tsukuba Laboratory, where the BelleⅡdetector is installed and is being prepared for the first beam collision operation next spring. The French flag joined the

Visite de l’Ambassadeur de France au KEK, à Tsukuba, à l’occasion de la cérémonie de lever du drapeau national français, commémorant la participation de la France comme 24ème pays membre de Belle II (in French)

Fri, 13 Oct 2017 09:00:00 +0900

L’Ambassadeur de France au Japon, son Excellence Monsieur Laurent Pic, et son équipe sont venus sur le campus du KEK à Tsukuba le 11 octobre pour assister à la cérémonie de lever du drapeau national français dans la zone d’interacti

JENNIFER Consortium General Meeting Held in KEK, Tsukuba, Japan Attended by 40 Researchers from 11 Nations

Fri, 06 Oct 2017 17:00:00 +0900

The 3rd General Meeting of JENNIFER (Japan and Europe Network for Neutrino and Intensity Frontier Experimental Research) Consortium was held in KEK Tsukuba campus on October 6, 2017. It was for the first time in Japan and attended by 40 scientists from 11 nations: Germany, France, Italy, Poland, Slovenia, United Kingdom, Austria, Czech Republic, Spain, Turkey and Japan. JENNIFER is a an MSCA-RISE (Research and Innovation Staff Exchange) project funded

KEK×niconico 《The roll-in of the Belle II detector》The integration with the world's powerful accelerator

Fri, 31 Mar 2017 15:00:00 +0900

We will have a live webcast of the roll-in of Belle II on Niconico Live, the largest webcasting service in Japan.

Publication of a new Belle II introduction movie

Thu, 02 Feb 2017 15:00:00 +0900

KEK IPNS released a new promotion movie for the Belle II experiment in both Japanese and English on YouTube’s KEK Channel

It is a short, only three minutes movie, please enjoy !

Installation of the Belle II Central Drift Chamber completed

Thu, 13 Oct 2016 18:00:00 +0900

On Oct. 13th 2016, the Central Drift Chamber (CDC) for the Belle II detector was successfully installed.

The CDC is a crucial sub-detector, as it provides the momentum of electrically-charged particles by reconstructing their curved trajectories while moving in a magnetic field. The information provided by the CDC is also a key ingredient of the Belle II trigger system. Additionally, the CDC contributes to particle identification by measuring the energy loss of charged particles as they pass through the gas that fills the CDC.

Strengthening global coordination on large neutrino infrastructures

Fri, 08 Jul 2016 14:00:00 +0900

Funding-agency and laboratory representatives gathered at the 3rd International Meeting on Large Neutrino Infrastructures on May 30-31, 2016 at KEK in Tsukuba, Japan to gauge the progress in the global coordination of projects that had been launched during the first and second international meetings and to discuss the next steps in the global coordination. Please read KEK Press Release for details. Related Articles 2016-07-08 KEK Strengthening global coordination on large

Completion of the drift chamber for COMET experiment

Fri, 10 Jun 2016 21:00:00 +0900

On June 10th, 2016, the construction of Cylindrical Drift Chamber (CDC) for the COMET experiment was finished.

The 3rd International Meeting for Large Neutrino Infrastructures

Tue, 31 May 2016 14:28:34 +0900

The 3rd International Meeting for Large Neutrino Infrastructures took place at KEK on the 30th and 31st of May 2016. Nearly 80 physicists around the world participated.

They discussed and shared the progress that has been made since last meeting in terms of the development of the scientific and the organizational aspects of the worldwide collaboration in large neutrino infrastractures for next generation.

Installation of the Belle II TOP Detector completed

Wed, 11 May 2016 18:00:00 +0900

On May 11th, all modules of the TOP Detector were installed.

The TOP Detector is part of the cylindrical barrel of the Belle II detector. It is a newly built detector for precision identification of pi and K mesons.

Safety document at the Tsukuba campus

Thu, 31 Mar 2016 14:00:00 +0900

“Safety at KEK” is a document for the basic safety rules at the Tsukuba campus, and it is now available in English for the foreign collaborators.

The safety group at IPNS asks you to read through it and try to comply with the necessary rules for the safe activity inside the campus.

First turns and successful storage of beams in the SuperKEKB electron and positron rings

Wed, 02 Mar 2016 16:30:00 +0900

After five years of large-scale upgrade work, SuperKEKB, an electron-positron colliding accelerator at KEK in Japan, has started test operations. SuperKEKB succeeded in circulating and storing beams in the electron and positron rings, which is the first milestone of its commissioning.

A visit of FALC members to Belle II

Wed, 24 Feb 2016 16:30:00 +0900

On February 24th, members of the Funding Agencies for Large Colliders (FALC) visited KEK and stopped by at the state-of-the-art Belle II detector now being constructed inside Tsukuba Hall.

Prof. Tom Browder of the University of Hawaii and the spokesperson of the Belle II experiment, Prof. Yoshihide Sakai and Prof. Yutaka Ushiroda of IPNS/KEK, led a tour around the Belle II detector and gave an overview of the current status of the experiment while showing the detectors, including the particle identification system, the tracker, and the vertex detectors in the midst of their construction.

Annual Visitors to Tsukuba Hall, the home of the Belle II detector, exceed 10,000.

Wed, 20 Jan 2016 14:00:00 +0900

This year, for the very first time, the number of visitors to Tsukuba Hall at KEK in Tsukuba, Japan and home of the Belle II detector designed, built and operated by an international collaboration of over 600 physicists from 23 countries, exceeded 10,000.

Founding Fathers of the B Factory Experiments Awarded Panofsky Prize

Fri, 16 Oct 2015 14:00:00 +0900

On October 5th, 2015, the American Physical Society awarded the 2016 W.K.H. Panofsky Prize in Experimental Particle Physics to Drs. Fumihiko Takasaki, Stephen Olsen, Jonathan Dorfan and David Hitlin, for “leadership in the BaBar and Belle experiments, which established the violation of CP symmetry in B meson decay, and furthered our understanding of quark mixing and quantum chromodynamics”. This is the highest award of the APS for experimental particle physics

First look at antineutrino appearance from T2K

Thu, 23 Jul 2015 14:00:50 +0900

The T2K (Tokai-to-Kamioka) experiment in Japan has observed three electron antineutrino candidate events in a muon antineutrino beam. T2K creates and monitors a muon antineutrino beam at the J-PARC facility in Tokai village on the east coast of Japan, and sends it 295 km west to the Super-Kamiokande detector underneath Mt. Ikeno near Toyama, which was built, and is operated, by ICRR. This is the first antineutrino appearance search by

First result of the muon antineutrino disappearance by T2K

Mon, 18 May 2015 18:00:00 +0900

On May 15th, 2015, Dr. Asher C. Kaboth, from Imperial College London, presented “The first result of the muon antineutrino disappearance by T2K” at a KEK IPNS Physics Seminar, which was held at Tokai Campus. He showed the first T2K muon-antineutrino disappearance measurment results and a comparison between the new result and past results obtained using a neutrino beam. The T2K experiment observed electron-neutrino appearance from a muon-neutrino beam in