28.05.2026
SAT

Logistics for the Site Acceptance Test (SAT) of STS LV Modules

Heavy equipment for the Silicon Tracking System delivered
STScabel1STScabel2

The powering cables for STS operation in the CBM cave have now been completely delivered after a tendering procedure was carried out in 2025. In February 2026, reels with 9 km of low-voltage cable at 5 tons weight arrived. The high-voltage cables delivered in May 2026 amount to 15 km length and weigh 3.7 tons. Until their confection to length and with connectors, also available in full amount, and subsequent installation in the CBM building between the power supplies’ locations and the STS detector, planned for mid 2027, the reels are being stored in GSI-FAIR’s central logistics hall.

STScabel3

STS retreat at University of Tübingen, 18-20 May 2026
STS retreat

During the three-day meeting, participants from the Silicon Tracking System project discussed in detail the next steps in detector realization. These are the assembly and qualification of the half-units and their subsequent system integration. Readiness of the required components, infrastructure and procedures was addressed. Concrete results from the retreat concern some technical decisions to be taken swiftly, a view of tasks and their staffing including room for welcomed external contributions, as well as the timeline to the first half-unit being ready up to achieving full STS delivery and commissioning in the experiment in 2028 link

04.05.2026
Tetyana_boss

Tetyana Galatyuk officially took over the role of new CBM Department Head at GSI from Hans-Rudolf Schmidt. In an informal ceremony Thomas Nilsson, Scientific Director of GSI & FAIR, and Yvonne Leifels, Head of Research and joined members of the CBM department thanking and praising Hans-Rudolf Schmidt for his dedication as department head during the past 6 years and wishing Tetyana Galatyuk all the best in organizing the launch of the future CBM Experiment at FAIR.

27.04.2026
MehulMehul_all

Mehulkumar Shiroya (Johann Wolfgang Goethe-Universität Frankfurt am Main) today successfully defended his PhD thesis "Design Conceptualization, Data Rate Studies and Physics Performance of the Silicon Tracking System at the Compressed Baryonic Matter Experiment".

30.03.2026
Mgnt

Status magnet production March 2026 link

20.03.2026
Adrian_DPG

At the 89th Annual Conference and Spring Meeting of the Matter and Cosmos Section of the DPG at Friedrich-Alexander-Universität Erlangen-Nürnberg, the CBM Collaboration presented 25 contributions. Adrian Rodríguez Rodríguez gave an - outstanding - invited talk on behalf of the CBM collaboration.

10.03.2026
Dairon

Dairon Rodrı́guez Garcés (Johann Wolfgang Goethe-Universität Frankfurt am Main) today successfully defended his PhD thesis "The Silicon Tracking System of the E16 experiment at J-PARC:Characterization, Beam commissioning, and implications for the CBM series production".

Dairon_all
06.03.2026

Best CBM PhD Award 2025

Dario

Dario Ramirez, Frankfurt University

Performance evaluation of the prototype CBM Silicon Tracking System -- Results from operation in the mCBM at the SIS18 demonstrator experiment The CBM Collaboration proudly presents the Best Thesis Award to Dr Dario Ramirez for his outstanding and pioneering contribution to the first comprehensive validation of the Silicon Tracking System performance with real experimental data, and for the contribution to a robust and lasting analysis framework covering the full reconstruction chain of the STS under realistic beam conditions. The CBM Collaboration acknowledge the high relevance of this work for establishing the experimental readiness and long-term reliability of the STS detector in the demanding CBM environment.

Pavish

Pavish Subramani, Wuppertal University 

Performance qualification of the DIRICH readout system and development of a novel electron reconstruction scheme for the CBM experiment The CBM Collaboration proudly presents the Best Thesis Award to Dr Pavish Subramani for his significant contributions to the performance qualification of the DIRICH readout system, and for the development of innovative electron reconstruction methods combining RICH and TRD information with advanced machine learning techniques. The CBM Collaboration acknowledge the high relevance of this work for improving the electron identification capability and ensuring the optimal operation and physics performance of the CBM RICH detector.

02.12.2025
Giersch1Giersch2

We congratulate our early career researchers:

  • Marvin Nabroth (GU Frankfurt) for his work on cumulants of the multiplicity distributions of identified particles measured in heavy-ion collisions

  • Franz Matejcek (GU Frankfurt) for his achievements in integration concept of CBM MVD

  • Karina Scharmann (JLU Giessen) for her outstanding progress in establishing reference spectrum for 1.58 GeV collision energy  based on pp and p-Mylar interactions

  • Yevhen Kozymka (TU Darmstadt) for his significant input in understanding the LGAD performance and LGAD application for ion computed tomography imaging

  • David Gutiérrez Menéndez (GU Frankfurt / GSI) for his work on development and implementation of complex control system for CBM STS 

    for receiving the Giersch-Excellence-Grant 2025 for their outstanding scientific achievements during their doctoral studies over the past years.

29.10.2025
Dario

Dario Ramirez Zaldivar today successfully defended his PhD thesis "Performance evaluation of the prototype CBM Silicon Tracking System - Results from operation in the mCBM at the SIS18 demonstrator experiment".

STSgroup
16.10.2025
NIMA

The second CBM Collaboration paper and the first one dealing with real data has been published: 

Performance of the prototype Silicon Tracking System of the CBM experiment tested with heavy-ion beams at SIS18 

CBM Collaboration, A. Agarwal et al. (May 26, 2025) 
Published in: Nucl.Instrum.Meth.A 1082 (2026) 171059 

link

SAFE project

The EU-funded SAFE https://saferesearchers.eu/ project ("Supporting At-Risk Researchers with Fellowships in Europe") has launched its call for applications for fellowships in November 2024. The application prepared by Alberica and Maksym was successful in the very competitive selection process. Excellent! Warmest congratulations to Alberica and Maksym! We thank Arjan Vink and Yvonne Leifels from GSI/FAIR for their support of the CBM candidate and Jürgen for promoting the programme and for encouraging to apply. Let's hope that Oleksandr Kshyvansky (Institute for Nuclear Research of the National Academy of Sciences of Ukraine (KINR), Kyiv, Ukraine) will soon arrive at GSI to strengthen the activities around the STS project!

05.05.2025
Adrian

Adrian Meyer-Ahren defended successfully his thesis on May 5, 2025 at the University of Münster.  
The title of his thesis is “Dielectron Performance of the Compressed Baryonic Matter Experiment”.

FAIR science, India, 23-25 April 2025
India1

A two days outreach program on CBM, NuSTAR and BioPhysics was organised at the Panjab University Chandigarh, India, 23-25 April 2025. The CBM-Day took place on 25 Apr to assess the contributions from institutions in India and discuss groups future plans. CBM Management is very grateful for the active participation and constructive discussions to all the Project Leaders from institutions in India. Special thanks goes to Local organising team lead by Bivash Ranjan Behera (NuSTAR), Lokesh Kumar (CBM).

India2
CBM @ QM 2025, Goethe University Frankfurt, Germany

The Quark Matter Conference was held in Frankfurt from 6 to 12 April 2025. The conference was attended by 1004 participants. CBM and HADES members actively participated in the organisation of the meeting as conference co-chair, members of the IAC and LOC, and in the presentation of science in 1 plenary (HADES), 1 parallel (CBM) + 3 parallel (HADES) talks, as well as 8 posters (HADES) and 17 posters (CBM). High muB physics was prominently discussed at QM2025, but also at the satellite meeting on Physics of High net-baryon densities (PHD2025), 13-15 April 2025 at GSI.

01.04.2025
Pavish

Pavish Subramani defended successfully his thesis on March 27, 2025 at the University of Wuppertal.  
The title of his thesis is “Performance qualification of the DIRICH readout system and development of a novel electron reconstruction scheme for the CBM experiment”.

19.03.2025
DPG2025

At the DPG spring meeting CBM was presented with 20 contributions. 
The plenary talk was given by Piotr Gasik.

21.02.2025
PhDaward

The CBM Collaboration proudly presents the Best Thesis Award to Dr. Kshitij Agarwal 

  • for the development of a realistic CBM-STS thermal demonstrator to experimentally verify the cooling concept and simulation results; 

  • for the significant contributions to the design of the cooling element and optimizing the construction of the STS modules, the monitoring of environmental parameters. 

The CBM Collaboration acknowledge the high relevance of this work for the development of the concept of the STS cooling system and its direct implications in the final STS operation.

20.12.2024
CBM cave with concrete

The CBM cave with magnet foundation. 

19.12.2024
Agarwal

Kshitij Agarwal defended successfully his thesis on December 19, 2024 at the University of Tübingen.  
The title of his thesis is “Thermal Management of the Silicon Tracking System of the CBM Experiment at FAIR”.

17.12.2024

Shaifali Mehta defended successfully her thesis on December 16, 2024 at the University of Tübingen.  
The title of her thesis is “Investigation of thermal and structural integrity of modules and ladders of Silicon tracking System of CBM experiment”.