Stefan Ulmer on Mon, 03/14/2016 – 09:44

Is made of an international collaboration in the Antiproton Decelerator (AD) of CERN which is aimed at precise comparisons from the fundamental qualities of antiprotons and protons. Such comparisons are interesting because any measured asymmetry would hint at physics past the Standard Model. The experiment includes calculating the cyclotron and Larmor frequencies of single trapped (anti)protons, and optionally negatively billed hydrogen ions. By calculating the number of both of these frequencies the magnetic moment from the (anti)proton is acquired in units from the nuclear magneton. The Bottom collaboration observed the very first spin flips having a single trapped proton. measured the magnetic moment from the proton having a fractional precision in the parts per million level, observed first single proton spin filps and shown the double Penning trap technique the very first time. Lately we performed the very first direct high-precision measurement from the magnetic moment of merely one trapped proton. Our value includes a precision of three.3 ppb, outperforms previous Penning trap experiments with a factor of 760, and increases the presently acceped CODATA literature value with a factor of two.5. By making use of this method towards the antiproton magnetic moment a thousand-fold improvement in precision can be done, that will provide probably the most sensitive tests of CPT invariance.

Additionally we performed probably the most precise test of CPT invariance with baryons by evaluating the antiproton-to-proton charge-to-mass ratio having a fractional precision of 69 parts inside a trillion. We are designed for improving this measurement by take into consideration of 10.

Stefan Ulmer on Mon, 03/14/2016 – 09:43

BASE people Takashi Higuchi and Andreas Mooser received research prizes for his or her operate in BASE.

Takashi Higuchi was awarded a poster prize in the LEAP2016 conference in Kanazawa, Japan, that was backed naturally Physics.

For his PhD thesis, by which he performed the very first direct high-precision measurement from the magnetic moment of merely one trapped proton, Andreas Mooser received the PhD thesis-prize of GSI Darmstadt and also the prize from the buddies from the College of Mainz. Andreas’ work offers the most precise measurement from the proton magnetic moment, the job was transported-out in the BASE-Mainz experiment.

Stefan Ulmer on Get married, 10/07/2015 – 09:38

We created a method to extract arbitrary fractions of antiprotons inside a reservoir trap. This process enables us to function BASE almost independent from accelerator cycles, and particularly throughout the winter shut-lower when magnetic field noise within the antiproton decelerator hall is low. For more details look at this article.

Stefan Ulmer on Get married, 08/12/2015 – 23:07

Inside a paper printed today anyway we report our prime-precision comparison from the antiproton-to-proton charge to mass ratio. Within our measurements we compared the cyclotron frequencies of antiprotons to that particular of negatively billed hydrogen ions, that are utilized as a proxy for that proton. We achieved a fractional precision of 69 parts inside a trillion, which corresponds within our magnetic field of just one.95 Tesla to a great energy resolution of 2mHz. Our outcome is in line with CPT invariance.

Anonymous on Get married, 09/03/2014 – 00:06

BASE member Stefan Ulmer continues to be selected to get the IUPAP Youthful Researcher Prize 2014 in Fundamental Metrology. With this particular prize the Worldwide Union of Pure and Applied Physics (IUPAP) honors his focus on proton and antiproton magnetic moment measurements.

Stefan Ulmer on Thu, 05/29/2014 – 02:58

Inside a paper just printed anyway we set of the very first direct high precision measurement from the proton magnetic moment. By use of the elegant double Penning trap technique we achieved a fractional precision of three.3 parts per billion. Our value is in conjuction with the presently recognized CODATA value, but 2.5 occasions more precise.

Stefan Ulmer on Comes to an end, 05/23/2014 – 01:56

Congratulations, BASE member Dr. Christian Smorra applied effectively for among the highly competitive CERN fellowships. We’re grateful for that quite strong support by CERN.

Stefan Ulmer on Mon, 06/10/2013 – 00:00

Inside a just in Physics Letters B printed article we set of the very first effective illustration showing the double Penning trap technique having a single proton. This can be a major step perfectly into a measurement from the particle’s magnetic moment with ppb precision. The technique does apply towards the antiproton, that will enable probably the most sensitive tests of CPT symmetry with baryons.

Stefan Ulmer on Get married, 06/05/2013 – 00:00

In the current Research Board meeting the bottom project was approved. CERN supported your application by articles within the CERN bulletin.

Stefan Ulmer on Sitting, 04/06/2013 – 00:00

The Bottom technical design report was evaluated through the SPSC. The committee suggested approval from the BASE project towards the research board. Our TDR includes a detailed description in our experiment along with a practicality study for implementation of BASE in to the Antiproton Decelerator facility. We acknowledge the strong support from the CERN groups which led to for this study.Special because of Lajos Bojtar for that coordination.

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