H. Cai

works on

B meson decays 1 cp violation 1 flavor physics 1 lhcb experiment 1 penguin contributions 1 time-dependent asymmetry 1

From the 1 of 21 linked papers with an AI index.

collaborators

21 papers

hep-ex2026

Observation of $C P$ violation in $B^{0} \to J / I ¨ I ¨ (770)^{0}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1172

The LHCb collaboration measures the time‑dependent CP asymmetry in B⁰ → J/ψ ρ⁰ decays, reporting the first observation of CP violation in this channel and determining the effective…

hep-ex2026

First Observation of $D^{0 (+)} \to K ˉ I ¨ e^{+} I^½_{e}$ and Determination of the Branching Fraction of $K ˉ_{1} (1270) \to K ˉ I ¨ $

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using 20.3~fb $^{- 1}$ of $e^{+} e^{-}$ annihilation data collected at a center-of-mass energy of 3.773~GeV with the BESIII detector, we report the first observation of the semileptonic d…

hep-ex2026

Search for lepton-number-violating $B^{-} \to D^{(*) +} I^¼^{-} I^¼^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1188

A search is performed for lepton-number-violating $B^{-} \to D^{(*) +} I^¼^{-} I^¼^{-}$ decays, using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass ener…

cs.LG2026

Lightning OPD: Efficient Post-Training for Large Reasoning Models with Offline On-Policy Distillation

Yecheng Wu, Song Han, Hai Cai

On-policy distillation (OPD) is an effective post-training paradigm for large language models but requires a live teacher server throughout training, resulting in substantial infra…

hep-ex2026

Search for $K_{S (L)}^{0} \to I ¨ ^{+} I ¨ ^{-} I^¼^{+} I^¼^{-}$ decays at LHCb

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1183

A search for $K_{S (L)}^{0} \to I ¨ ^{+} I ¨ ^{-} I^¼^{+} I^¼^{-}$ decays is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mas…

hep-ex2026

First evidence of the $B_{s}^{0} \to K^{-} I ¨ ^{+} I^^{3}$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1173

The first search for the $B_{s}^{0} \to K^{-} I ¨ ^{+} I^^{3}$ decay in the range $796 < m (K^{-} I ¨ ^{+}) < 1800 MeV/ c^{2}$ is performed using data from proton-proton collisions collected by th…

Observation of CP violation in B0→J/I¨I¨(770)0 decays

First Observation of D0(+)→KˉI¨e+I^½e​ and Determination of the Branching Fraction of Kˉ1​(1270)→KˉI¨

Search for lepton-number-violating B−→D(∗)+I^¼−I^¼− decays

Lightning OPD: Efficient Post-Training for Large Reasoning Models with Offline On-Policy Distillation

Search for KS(L)0​→I¨+I¨−I^¼+I^¼− decays at LHCb

First evidence of the Bs0​→K−I¨+I^3 decay

Observation of $C P$ violation in $B^{0} \to J / I ¨ I ¨ (770)^{0}$ decays

First Observation of $D^{0 (+)} \to K ˉ I ¨ e^{+} I^½_{e}$ and Determination of the Branching Fraction of $K ˉ_{1} (1270) \to K ˉ I ¨ $

Search for lepton-number-violating $B^{-} \to D^{(*) +} I^¼^{-} I^¼^{-}$ decays

Search for $K_{S (L)}^{0} \to I ¨ ^{+} I ¨ ^{-} I^¼^{+} I^¼^{-}$ decays at LHCb

First evidence of the $B_{s}^{0} \to K^{-} I ¨ ^{+} I^^{3}$ decay