Questo sembra interessante:
*VIII zona. Pratiche di resistenza e reti clandestine a Roma*, curato da Riccardo Sansone e Anthony Santilli (Edizioni Annpia–associazione Bella storia–Narrazioni di strada): racconti e testimonianze sul “nido di vespe”, la borgata del Quadraro tra il 1943 e il 1945 e, più in generale, sulla lotta contro l'occupazione nazifascista nella VIII zona partigiana della capitale (Pigneto, Tor Pignattara, Villa Certosa, Centocelle, Quarticciolo e Quadraro):
First observation of $\Lambda_{b}^{0} \rightarrow \Sigma_c^{(*) } D^{(*)-} K^{-}$ decays
LHCb collaboration, et al.
https://arxiv.org/abs/2404.19510 https://arxiv.org/pdf/2404.19510
arXiv:2404.19510v1 Announce Type: new
Abstract: The four decays, $\Lambda_{b}^{0} \rightarrow \Sigma_c^{(*) } D^{(*)-} K^{-}$, are observed for the first time using proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of $13\,\rm{TeV}$, corresponding to an integrated luminosity of $6\,\rm{fb}^{-1}$. By considering the $\Lambda_b^0 \rightarrow \Lambda_c^{ } \overline{D}^0 K^{-}$ decay as reference channel, the following branching fraction ratios are measured to be,
$$\frac{\cal{B} (\Lambda_{b}^{0} \rightarrow \Sigma_{c}^{ } \rm{D}^{-} {K}^{-})}{\cal{B}(\Lambda_{b}^{0} \rightarrow \Lambda_c^{ } \rm \overline{D}^0 {K}^{-})}
= {0.282}\pm{0.016}\pm{0.016}\pm{0.005},
\frac{\cal{B}(\Lambda_{b}^{0} \rightarrow \Sigma_{c}^{* } \rm {D}^{-} {K}^{-})}{\cal{B}(\Lambda_{b}^{0} \rightarrow \Sigma_c^{ } \rm {D}^{-} {K}^{-})}
= {0.460}\pm{0.052}\pm{0.028},
\frac{\cal{B}(\Lambda_{b}^{0} \rightarrow \Sigma_{c}^{ } \rm {D}^{*-} {K}^{-})}{\cal{B}(\Lambda_{b}^{0} \rightarrow \Sigma_c^{ } \rm {D}^{-} {K}^{-})}
= {2.261}\pm{0.202}\pm{0.129}\pm{0.046},
\frac{\cal{B}(\Lambda_{b}^{0} \rightarrow \Sigma_{c}^{* } \rm D^{*-} K^{-})}{\cal{B}(\Lambda_{b}^{0} \rightarrow \Sigma_c^{ } \rm D^{-} K^{-})}
= {0.896}\pm{0.137}\pm{0.066}\pm{0.018},$$
where the first uncertainties are statistical, the second are systematic, and the third are due to uncertainties in the branching fractions of intermediate particle decays. These initial observations mark the beginning of pentaquark searches in these modes, with more data set to become available following the LHCb upgrade.
https://www.whitehouse.gov/briefing-room/statements-releases/2024/02/29/fact-sheet-biden-harris-administration-takes-action-to-address-risks-of-autos-from-china-and-other-countries-of-concern/
President Biden is taking unprecedented action to protect Americans from the national security risks posed by connected vehicles from countries of concern, including the People’s Republic of China. At the President’s direction, the Department of Commerce will investigate the national security risks from connected vehicles that incorporate technology from countries of concern, including China, and consider regulations to address those risks.
Speicher-Wettrennen: Micron produziert HBM3e für Nvidia, AMD will auch
Micron hat die Serienproduktion von HBM3e-RAM verkündet, Samsung folgt. Nvidia ist der erste Abnehmer mit seinen H200-GPUs.
https://www.<…
Florida is continuing to “callously” strip healthcare coverage from thousands of children in
lower-income households
💥in defiance of a new federal law intended to protect them.💥
👉Since 1 January, more than 22,500 children have been disenrolled from Florida KidCare,
its version of the Children’s Health Insurance Program (Chip) that is jointly subsidized by states and the US government for families with earnings just above the threshold for Medicaid.
Florida healt…
Iranische Regierung verschärft die Repression; Iranischer Rapper #Toomaj_Salehi zum Tode verurteilt
#FreeToomaj
#IranMenschenrechte
You Can Run BASIC On an Old HP 4592 Protocol Analyzer
https://poliverso.org/display/0477a01e-273ce170-53cc4f9c18ea694f
You Can Run BASIC On an Old HP 4592 Protocol Analyzer What do you do when you find an ancient piece of test gear and want to have …
Quantum State Designs with Clifford Enhanced Matrix Product States
Guglielmo Lami, Tobias Haug, Jacopo De Nardis
https://arxiv.org/abs/2404.18751 https://<…
Candidate lists were late?
Debates excluded candidates?
Votes from obviously eligible people challenged on technicality?
Votes not counted?
Adding a layer to reduce minority voice representation through rounding?
Requiring access and experience to run or participate?
All deeply anti-democratic processes we see every day.
Here's the White House fact sheet on that order
FACT SHEET: President Biden Issues Executive Order to Protect Americans’ Sensitive Personal Data
https://www.whitehouse.gov/briefing-room/statements-releases/2024/02/28/fact-sheet-president-biden-issues-sweeping-executive-order-to-protect-americans-sensitive-personal-data/