Janusz Chwastowski

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Professor at Institute of Nuclear Physics Polish Academy of Sciences

Institute of Nuclear Physics Polish Academy of Sciences

Poland

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About

Janusz Chwastowski is a Professor at the Institute of Nuclear Physics Polish Academy of Sciences, Poland. His research focuses on high-energy physics, particularly in the areas of W and Higgs boson production, dark matter searches, and jet energy measurements, as evidenced by his recent publications using the ATLAS detector. With expertise in proton-proton collisions at various energy levels, his work contributes significantly to the understanding of fundamental particles and their interactions.

Recent Grants

Grant: Open

Study of elastic proton-proton scattering at the LHC energies

Open Date: 2023-03-01

Close Date: 2027-02-01

Grant: Close

Exclusive top production in proton-proton collisions at the LHC

Open Date: 2022-11-01

Close Date: 2024-10-01

Grant: Close

Investigation of elastic and soft diffractive proton-proton interaction using ALFA detector of the ATLAS experiment at the LHC

Open Date: 2016-05-01

Close Date: 2017-11-01

Grant: Close

Investigation of diffraction, photoproduction and new physics using the forward proton taggers of the ATLAS experiment at the LHC

Open Date: 2013-05-01

Close Date: 2016-11-01

Positions (1)

Janusz Chwastowski

University Name

Institute of Nuclear Physics Polish Academy of Sciences

5 months ago

Postdoctoral Researcher (Adiunkt) in Experimental Particle Physics – ATLAS/LHC, Department of Diffractive Processes, IFJ PAN

The Institute of Nuclear Physics Polish Academy of Sciences (IFJ PAN) in Krakow, Poland, invites applications for a postdoctoral researcher (Adiunkt) position in the Department of Diffractive Processes (NZ13), Division of Particle and Astroparticle Physics. This full-time, fixed-term position (up to 33 months) focuses on experimental particle physics, specifically within the ATLAS experiment at the Large Hadron Collider (LHC). The successful candidate will participate in the ATLAS experiment, with core responsibilities including the analysis of accelerator luminosity (instantaneous, delivered, integrated) using LUCID detector data, maintenance of the LUCID detector, and dissemination of research results through publications in leading scientific journals and presentations at seminars and international conferences. The role also involves applying for external research funding and active engagement with the department's ongoing and planned research projects. Applicants must hold a PhD in physical sciences or a closely related discipline (chemistry, physical chemistry, or material science). Required qualifications include a strong publication record in prestigious international journals, expertise in experimental particle physics, hands-on experience with scientific research equipment and data analysis, teamwork skills, and excellent command of spoken and written English. Preferred qualifications are fluency in HEP programming tools and experience with Linux/Windows system administration. The position offers a competitive monthly gross salary of PLN 7,250 (for PhD holders) or PLN 8,050 (for those with habilitation), with possible additional components such as length of service, ionizing radiation allowance, long-service award, annual bonus, and support under the Company Social Benefits Fund. The role is research-focused with no teaching obligations, and benefits include 36 days of annual leave, access to well-equipped research facilities (including computer farms and cloud computing infrastructure), and opportunities for collaboration with world-class experts and other research institutes. The application deadline is May 4th, 2026. Candidates must contact the head of the NZ13 Department, Professor Janusz Chwastowski, early in the process and may be asked to deliver a seminar prior to submitting their application. Applications (including all required documents) should be sent by email to [email protected], preferably as a single PDF, .zip, or .rar file. Two referee recommendations must be sent directly by the referees to the same email address by the deadline. The selection process includes document review, interviews (June 9–11, 2026), and a presentation of the candidate’s most important achievement. The final decision will be made by the IFJ PAN Director, with results communicated by June 22nd, 2026. For further details, see the Terms and Conditions of Recruitment and the position announcement .

5 months ago

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Collaborators (232)

Guennadi Borissov

University of Lancaster

UNITED KINGDOM

Janusz Chwastowski

Research Interests

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About

Recent Grants

Positions (1)

Postdoctoral Researcher (Adiunkt) in Experimental Particle Physics – ATLAS/LHC, Department of Diffractive Processes, IFJ PAN

Articles (30)

Evidence for Longitudinally Polarized W Bosons in the Electroweak Production of Same-Sign W Boson Pairs in Association with Two Jets in pp Collisions at s=13 TeV with the ATLAS Detector

A search for dark matter produced in association with a dark Higgs boson decaying into a Higgs boson pair in 3$b$ or 4$b$ final states using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

Search for emerging jets in pp collisions at $\sqrt{s} = 13.6$ TeV with the ATLAS experiment

A precise measurement of the jet energy scale derived from single-particle measurements and in situ techniques in proton-proton collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector

Azimuthal anisotropies of charged particles with high transverse momentum in Pb+Pb collisions at $\sqrt{s_{_\text{NN}}} = 5.02$ TeV with the ATLAS detector

Measurements of W$^{+}$W$^{−}$ production cross-sections in pp collisions at $ \sqrt{s}=13 $ TeV with the ATLAS detector

Search for a new pseudoscalar decaying into a pair of bottom and antibottom quarks in top-associated production in $\sqrt{s}=13$ TeV proton–proton collisions with the ATLAS detector

Searches for direct slepton production in the compressed-mass corridor in $ \sqrt{\textrm{s}} $ = 13 TeV pp collisions with the ATLAS detector

Measurements of the production cross-sections of a Higgs boson in association with a vector boson and decaying into WW$^{*}$ with the ATLAS detector at $ \sqrt{s} $ = 13 TeV

Energy scale and resolution for anti-$k_t$ jets with radius parameters $R=0.2$ and 0.6 measured in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector

Accuracy versus precision in boosted top tagging with the ATLAS detector

Observation of quantum entanglement with top quarks at the ATLAS detector

Studies of the Energy Dependence of Diboson Polarization Fractions and the Radiation-Amplitude-Zero Effect in <math display="inline"><mrow><mi>W</mi><mi>Z</mi></mrow></math> Production with the ATLAS Detector

Combination of Searches for Higgs Boson Pair Production in <math display="inline"><mi>p</mi><mi>p</mi></math> Collisions at <math display="inline"><mrow><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></mrow></math> with the ATLAS Detector

Simultaneous energy and mass calibration of large-radius jets with the ATLAS detector using a deep neural network

Search for dark mesons decaying to top and bottom quarks in proton-proton collisions at $ \sqrt{\textrm{s}} $ = 13 TeV with the ATLAS detector

Differential cross-sections for events with missing transverse momentum and jets measured with the ATLAS detector in 13 TeV proton-proton collisions

Measurement of differential cross-sections in $ t\overline{t} $ and $ t\overline{t} $+jets production in the lepton+jets final state in pp collisions at $ \sqrt{s} $ = 13 TeV using 140 fb$^{−1}$ of ATLAS data

Search for non-resonant Higgs boson pair production in final states with leptons, taus, and photons in pp collisions at $ \sqrt{s} $ = 13 TeV with the ATLAS detector

Search for Majorana neutrinos in same-sign WW scattering events from pp collisions at $\sqrt{s}=13$ TeV

Searches for exclusive Higgs and Z boson decays into a vector quarkonium state and a photon using 139 fb$^{-1}$ of ATLAS $\sqrt{s}=13$ TeV proton–proton collision data

Measurements of differential cross sections of Higgs boson production through gluon fusion in the $H\rightarrow WW^{*}\rightarrow e\nu \mu \nu $ final state at $\sqrt{s} = 13$ TeV with the ATLAS detector

New techniques for jet calibration with the ATLAS detector

Search for single production of vector-like T quarks decaying into Ht or Zt in pp collisions at $ \sqrt{s} $ = 13 TeV with the ATLAS detector

Strong Constraints on Jet Quenching in Centrality-Dependent <math display="inline"><mrow><mi>p</mi><mo>+</mo><mi>Pb</mi></mrow></math> Collisions at 5.02 TeV from ATLAS

Calibration of the light-flavour jet mistagging efficiency of the b-tagging algorithms with Z+jets events using 139 $\textrm{fb}^{-1}$ of ATLAS proton–proton collision data at $\sqrt{s} = 13$ TeV

Measurements of $W^{+}W^{-}$ production in decay topologies inspired by searches for electroweak supersymmetry

Search for pair-produced vector-like top and bottom partners in events with large missing transverse momentum in pp collisions with the ATLAS detector

Collaborators (232)

Guennadi Borissov

Peter Henrik Hansen

Christos Bakalis

Carlo Dallapiccola

Marcel Weirich

Leo Boudet

Domizia Orestano

Mario Giordani

Jochen Jens Heinrich

Alan Barr

Lingxin Meng

Nikiforos Nikiforou

Thomas Neep

Florencia Luciana Castillo

Sau Lan Wu

Jiangyong jia

Anthony Affolder

Heather Gray

Alessandra Camplani

Stephane Willocq

Giacomo Artoni

Carmen Garcia

Carlos Escobar Ibáñez

Shigeki Hirose

Murrough Landon

Andy Buckley

Michel Vetterli

Sara Abdelhameed

giuseppe iacobucci

Andrey Ryzhov

Jonas Strandberg

Pavel Starovoitov

Flavia De Almeida Dias

Anthony Doyle

Nuno Castro

Gianluca Alimonti

Kevin Varvell

Björn Wendland

Masahiro Morii

Marcella Bona

Fernando Barreiro

Carlo Schiavi