GS

Gian Piero Siroli

0000-0002-3528-4125

CMSPhysicsModels, TheoreticalElementary ParticlesJetsQCDElementary Particle Interactionshep-exPDFStrong coupling constant

On Valency

published · living versions

A Roadmap for HEP Software and Computing R&D for the 2020s

with Johannes Albrecht, Antonio Augusto Alves, Guilherme Amadio, Giuseppe Andronico +305

1 version

W_ws9wtkezv1 · current

Preprints & journals

304 papers in the corpus · 1985–2026

Observation of ϒ(1S)+Z Associated Production and Measurement of the Effective Double-Parton Scattering Cross Section in Proton-Proton Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Makarenko, V, Tumasyan, A et al.

0 citations

428869002026Physical review letters. 2026;137(14):141902

Combination of ATLAS and CMS Searches for Higgs Boson Pair Production at sqrt[s]=13 TeV.

Aad, G, Aakvaag, E, Abbott, B et al.

1 citation

428541472026Physical review letters. 2026;137(13):131803

Search for the Nonresonant Production of a Pair of Additional Higgs Bosons in the Type-X Two-Higgs-Doublet Model in Proton-Proton Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

0 citations

428541572026Physical review letters. 2026;137(13):131801

Evidence of ZZγ Production and Observation of 4ℓγ in Proton-Proton Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Makarenko, V, Tumasyan, A et al.

0 citations

427270092026Physical review letters. 2026;137(9):091805

Observation of Long-Range Collective Flow in O+O and Ne+Ne Collisions and Implications for Nuclear Structure Studies.

Hayrapetyan, A, Makarenko, V, Tumasyan, A et al.

4 citations

427052822026Physical review letters. 2026;137(8):082302

Observation of the Jet Diffusion Wake Using Dijets in Heavy-Ion Collisions.

Hayrapetyan, A, Makarenko, V, Tumasyan, A et al.

2 citations

426754262026Physical review letters. 2026;137(7):071902

Search for Light Pseudoscalar Bosons, Pair-Produced in Higgs Boson Decays in the Four-Electron Final State in Proton-Proton Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Makarenko, V, Tumasyan, A et al.

0 citations

421723892026Physical review letters. 2026;136(18):181807

First Evidence for Mixing-Induced CP Violation in B_s^0→J/ψϕ(1020) Decays in pp Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

2 citations

421723972026Physical review letters. 2026;136(18):181801

Observation of Suppressed Charged-Particle Production in Ultrarelativistic Oxygen-Oxygen Collisions.

Hayrapetyan, A, Makarenko, V, Tumasyan, A et al.

11 citations

421131612026Physical review letters. 2026;136(16):162301

Measurement of D^0 Meson Photoproduction in Ultraperipheral Heavy Ion Collisions.

Chekhovsky, V, Hayrapetyan, A, Makarenko, V et al.

2 citations

419650132026Physical review letters. 2026;136(12):122303

Observation of tWZ Production at the CMS Experiment.

Hayrapetyan, A, Makarenko, V, Tumasyan, A et al.

0 citations

418249682026Physical review letters. 2026;136(8):081802

Search for New Physics in Jet Multiplicity Patterns of Multilepton Events at sqrt[s]=13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

0 citations

414181872025Physical review letters. 2025;135(23):231804

Search for the Rare Decay D^0→μ^+μ^- in Proton-Proton Collisions at sqrt[s]=13.6 TeV.

Chekhovsky, V, Hayrapetyan, A, Makarenko, V et al.

2 citations

411381142025Physical review letters. 2025;135(15):151803

Observation of Λ Hyperon Local Polarization in p-Pb Collisions at sqrt[s_NN]=8.16 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

10 citations

410767072025Physical review letters. 2025;135(13):132301

Probing Gluon Fluctuations in Nuclei with the First Energy-Dependent Measurement of Incoherent J/ψ Photoproduction in Ultraperipheral PbPb Collisions.

Chekhovsky, V, Hayrapetyan, A, Makarenko, V et al.

6 citations

410047692025Physical review letters. 2025;135(11):112301

Measurement of WWZ and ZH Production Cross Sections at sqrt[s]=13 and 13.6 TeV.

Hayrapetyan, A, Makarenko, V, Tumasyan, A et al.

4 citations

409522292025Physical review letters. 2025;135(9):091802

Observation of the Charged-Particle Multiplicity Dependence of σ_ψ(2S)/σ_J/ψ in p-Pb Collisions at 8.16 TeV.

Chekhovsky, V, Hayrapetyan, A, Makarenko, V et al.

3 citations

409522322025Physical review letters. 2025;135(9):092301

Evidence for Similar Collectivity of High Transverse-Momentum Particles in p-Pb and Pb-Pb Collisions.

Chekhovsky, V, Hayrapetyan, A, Makarenko, V et al.

6 citations

409292042025Physical review letters. 2025;135(7):071903

Search for a Neutral Gauge Boson with Nonuniversal Fermion Couplings in Vector Boson Fusion Processes in Proton-Proton Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

0 citations

408649412025Physical review letters. 2025;135(6):061803

Search for Fractionally Charged Particles in Proton-Proton Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

10 citations

402503892025Physical review letters. 2025;134(13):131802

Search for Nuclear Modifications of B^+ Meson Production in p-Pb Collisions at sqrt[s_NN]=8.16 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

3 citations

401924052025Physical review letters. 2025;134(11):111903

Search for New Resonances Decaying to Pairs of Merged Diphotons in Proton-Proton Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

4 citations

399516102025Physical review letters. 2025;134(4):041801

Reweighting simulated events using machine-learning techniques in the CMS experiment.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

6 citations

403422372025The European physical journal. C, Particles and fields. 2025;85(5):495

Searches for Pair-Produced Multijet Resonances Using Data Scouting in Proton-Proton Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

8 citations

396267452024Physical review letters. 2024;133(20):201803

Search for Soft Unclustered Energy Patterns in Proton-Proton Collisions at 13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

9 citations

395769232024Physical review letters. 2024;133(19):191902

Observation of Enhanced Long-Range Elliptic Anisotropies Inside High-Multiplicity Jets in pp Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

16 citations

394233902024Physical review letters. 2024;133(14):142301

Measurement of Energy Correlators inside Jets and Determination of the Strong Coupling α_S(m_Z).

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

42 citations

392135832024Physical review letters. 2024;133(7):071903

Observation of the ϒ(3S) Meson and Suppression of ϒ States in Pb-Pb Collisions at sqrt[s_NN]=5.02 TeV.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

19 citations

390739412024Physical review letters. 2024;133(2):022302

Search for Narrow Trijet Resonances in Proton-Proton Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

5 citations

390428002024Physical review letters. 2024;133(1):011801

Search for Baryon Number Violation in Top Quark Production and Decay Using Proton-Proton Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

5 citations

389493502024Physical review letters. 2024;132(24):241802

Search for Scalar Leptoquarks Produced via τ-Lepton-Quark Scattering in pp Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

5 citations

383945872024Physical review letters. 2024;132(6):061801

Search for Inelastic Dark Matter in Events with Two Displaced Muons and Missing Transverse Momentum in Proton-Proton Collisions at sqrt[s]=13 TeV.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

9 citations

383353612024Physical review letters. 2024;132(4):041802

Evidence for the Higgs Boson Decay to a Z Boson and a Photon at the LHC.

Aad, G, Abbott, B, Abeling, K et al.

47 citations

382776072024Physical review letters. 2024;132(2):021803

Search for exotic decays of the Higgs boson to a pair of pseudoscalars in the μμbb and ττbb final states.

CMS Collaboration, Hayrapetyan, A, Tumasyan, A et al.

9 citations

387576202024The European physical journal. C, Particles and fields. 2024;84(5):493

Portable Acceleration of CMS Computing Workflows with Coprocessors as a Service.

CMS Collaboration, Hayrapetyan, A, Tumasyan, A et al.

8 citations

392483082024Computing and software for big science. 2024;8(1):17

Observation of τ Lepton Pair Production in Ultraperipheral Pb-Pb Collisions at sqrt[s_NN]=5.02 TeV.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

30 citations

378977472023Physical review letters. 2023;131(15):151803

Measurement of the Dependence of the Hadron Production Fraction Ratios f_s/f_u and f_d/f_u on B Meson Kinematic Variables in Proton-Proton Collisions at sqrt[s]=13 TeV.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

5 citations

378029542023Physical review letters. 2023;131(12):121901

Search for Exotic Higgs Boson Decays H→AA→4γ with Events Containing Two Merged Diphotons in Proton-Proton Collisions at sqrt[s]=13 TeV.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

16 citations

377393612023Physical review letters. 2023;131(10):101801

Observation of the Rare Decay of the η Meson to Four Muons.

Hayrapetyan, A, Tumasyan, A, Adam, W et al.

11 citations

377218392023Physical review letters. 2023;131(9):091903

Observation of Same-Sign WW Production from Double Parton Scattering in Proton-Proton Collisions at sqrt[s]=13 TeV.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

8 citations

377218452023Physical review letters. 2023;131(9):091803

Search for Higgs Boson Decay to a Charm Quark-Antiquark Pair in Proton-Proton Collisions at sqrt[s]=13 TeV.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

45 citations

376250712023Physical review letters. 2023;131(6):061801

Azimuthal Correlations within Exclusive Dijets with Large Momentum Transfer in Photon-Lead Collisions.

Tumasyan, A, Adam, W, Bergauer, T et al.

13 citations

375952382023Physical review letters. 2023;131(5):051901

Search for Higgs Boson and Observation of Z Boson through Their Decay into a Charm Quark-Antiquark Pair in Boosted Topologies in Proton-Proton Collisions at sqrt[s]=13 TeV.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

11 citations

375668542026Physical review letters. 2023;131(4):041801

Search for Nonresonant Pair Production of Highly Energetic Higgs Bosons Decaying to Bottom Quarks.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

31 citations

375668642023Physical review letters. 2023;131(4):041803

Observation of Collider Muon Neutrinos with the SND@LHC Experiment.

Albanese, R, Alexandrov, A, Alicante, F et al.

66 citations

375408512023Physical review letters. 2023;131(3):031802

Probing Heavy Majorana Neutrinos and the Weinberg Operator through Vector Boson Fusion Processes in Proton-Proton Collisions at sqrt[s]=13 TeV.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

29 citations

374784542023Physical review letters. 2023;131(1):011803

Search for light Higgs bosons from supersymmetric cascade decays in pp collisions at s=13TeV.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

2 citations

374326812023The European physical journal. C, Particles and fields. 2023;83(7):571

Measurement of the differential tt¯ production cross section as a function of the jet mass and extraction of the top quark mass in hadronic decays of boosted top quarks.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

23 citations

374327142023The European physical journal. C, Particles and fields. 2023;83(7):560

CMS pythia 8 colour reconnection tunes based on underlying-event data.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

18 citations

374402472023The European physical journal. C, Particles and fields. 2023;83(7):587

Measurement of the mass dependence of the transverse momentum of lepton pairs in Drell-Yan production in proton-proton collisions at s=13TeV.

Tumasyan, A, Adam, W, Andrejkovic, J W et al.

22 citations

374712102023The European physical journal. C, Particles and fields. 2023;83(7):628

Career total: 3659 works. 304 are in this corpus.Showing the 50 most recent.

Profile built from the corpus for this byline.

3,659

works

110K

citations

137

h-index

Corpus papers per year

Corpus papers per year, 1985 to 2026. Busiest year 2018, 34 papers.
Year	Papers
1985	1
1986	0
1987	0
1988	0
1989	0
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	0
2010	4
2011	20
2012	15
2013	18
2014	20
2015	19
2016	21
2017	27
2018	34
2019	30
2020	17
2021	16
2022	9
2023	18
2024	12
2025	12
2026	11

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