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First Limits on Light Dark Matter Interactions in a Low Threshold Two-Channel Athermal Phonon Detector from the TESSERACT Collaboration

https://doi.org/10.1103/hsrl-crvf

Bui, T K; Chang, C L; Chang, Y-Y; Chaplinsky, L; Fink, C W; Garcia-Sciveres, M; Guo, W; Hertel, S A; Juigne, L; Kavner, A_R L; et al (October 2025, Physical Review Letters)

We present results of a search for spin-independent dark matter-nucleus interactions in a $1 {cm}^{2}$ by 1 mm thick (0.233 g) high-resolution silicon athermal phonon detector operated above ground. For interactions in the substrate, this detector achieves an rms baseline energy resolution of $361.5 (4) m eV$ (statistical error), the best for any athermal phonon detector to date. With an exposure of $0.233 g \times 12$ hours, we place the most stringent constraints on dark matter masses between 44 and $87 M eV / c^{2}$ , with the lowest unexplored cross section of $4 \times 10^{- 32} {c m}^{2}$ at $87 M eV / c^{2}$ . We employ a conservative salting technique to reach the lowest dark matter mass ever probed via direct detection experiment. This constraint is enabled by two-channel rejection of low energy backgrounds that are coupled to individual sensors.
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Free, publicly-accessible full text available October 1, 2026
Measurement of the Prompt $D^{0}$ Nuclear Modification Factor in $p − Pb$ Collisions at $\sqrt{s_{N N}} = 8.16 TeV$

https://doi.org/10.1103/PhysRevLett.131.102301

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C. A.; et al (September 2023, Physical Review Letters)

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Observation of a Resonant Structure near the $D_{s}^{+} D_{s}^{-}$ Threshold in the $B^{+} \to D_{s}^{+} D_{s}^{-} K^{+}$ Decay

https://doi.org/10.1103/PhysRevLett.131.071901

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C. A.; et al (August 2023, Physical Review Letters)

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First observation of the $B^{+} \to D_{s}^{+} D_{s}^{-} K^{+}$ decay

https://doi.org/10.1103/PhysRevD.108.034012

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C. A.; et al (August 2023, Physical Review D)

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Measurement of the Branching Fractions $B (B^{0} \to p \bar{p} p \bar{p})$ and $B (B_{s}^{0} \to p \bar{p} p \bar{p})$

https://doi.org/10.1103/PhysRevLett.131.091901

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Afsharnia, H.; Agapopoulou, C.; et al (August 2023, Physical Review Letters)

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Multidifferential study of identified charged hadron distributions in $Z$ -tagged jets in proton-proton collisions at $\sqrt{s} = 13 TeV$

https://doi.org/10.1103/PhysRevD.108.L031103

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C. A.; et al (August 2023, Physical Review D)

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Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in $p − Pb$ Collisions

https://doi.org/10.1103/PhysRevLett.131.042302

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C. A.; et al (July 2023, Physical Review Letters)

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First Observation of a Doubly Charged Tetraquark and Its Neutral Partner

https://doi.org/10.1103/PhysRevLett.131.041902

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Afsharnia, H.; Agapopoulou, C.; et al (July 2023, Physical Review Letters)

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Amplitude analysis of $B^{0} \to {\bar{D}}^{0} D_{s}^{+} π^{-}$ and $B^{+} \to D^{-} D_{s}^{+} π^{+}$ decays

https://doi.org/10.1103/PhysRevD.108.012017

Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Afsharnia, H.; Agapopoulou, C.; et al (July 2023, Physical Review D)

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Measurement of the $$ {\Lambda}_c^{+} $$ to D0 production ratio in periphera PbPb collisions at $$ \sqrt{s_{\textrm{NN}}} $$ = 5.02 TeV

https://doi.org/10.1007/JHEP06(2023)132

Aaij, R.; Abdelmotteleb, A. S.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C. A.; et al (June 2023, Journal of High Energy Physics)

A bstract We report on a measurement of the $$ {\Lambda}_c^{+} $$ Λ c + to D 0 production ratio in peripheral PbPb collisions at $$ \sqrt{s_{\textrm{NN}}} $$ s NN = 5 . 02 TeV with the LHCb detector in the forward rapidity region 2 < y < 4 . 5. The $$ {\Lambda}_c^{+} $$ Λ c + ( D 0 ) hadrons are reconstructed via the decay channel $$ {\Lambda}_c^{+} $$ Λ c + → pK − π + ( D 0 → K − π + ) for 2 < p T < 8 GeV/ c and in the centrality range of about 65–90%. The results show no significant dependence on p T , y or the mean number of participating nucleons. They are also consistent with similar measurements obtained by the LHCb collaboration in pPb and Pbp collisions at $$ \sqrt{s_{\textrm{NN}}} $$ s NN = 5 . 02 TeV. The data agree well with predictions from PYTHIA in pp collisions at $$ \sqrt{s} $$ s = 5 TeV but are in tension with predictions of the Statistical Hadronization model.
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