Name: CMS mW Hackathon Open Session
Start: 2023-01-09T13:00:00-05:00
End: 2023-01-09T21:00:00-05:00
Location: Massachusetts Institute of Technology, Cambridge, MA, USA

- Open Session Talks Kolker Room (26-414)
  
  Kolker Room (26-414)
  
  Massachusetts Institute of Technology, Cambridge, MA, USA
  - 1
    
    Welcome/Logistics
    
    Speaker: Johannes Michel (MIT CTP)
    
    welcome_slides_mW_open_session.pdf
  - 2
    
    Wish List from Experimentalists
    
    Speaker: Kenneth Long (Massachusetts Inst. of Technology (US))
    
    2023_01_Long_mWTheoryWishlist.pdf
  - 3
    
    Flash Talk: Accessing non-perturbative TMDs from the lattice
    
    Speaker: Stella Schindler
    
    tmds.pdf
  - 4
    
    Flash talk: Collins-Soper kernel from lattice QCD at the physical pion mass
    
    Collins-Soper (CS) evolution kernel is necessary to relate transverse-momentum-dependent parton distribution functions (TMDPDFs) at different scales. The kernel's behavior at high as well as low transverse momenta $q_T$ may lead to sizable variations in the uncertainty estimates for $m_W$. For $q_T \sim \Lambda_\mathrm{QCD}$, the CS kernel is non-perturbative; the determination of the CS kernel in the non-perturbative regime can only be done through experiment or first-principles calculations. Here, preliminary results are presented for a new calculation of the non-perturbative CS kernel using lattice QCD and Large-Momentum Effective Theory. This work improves the control over and reduces the systematic uncertainties compared to previous lattice QCD calculations, and is the first computation at close-to-physical valence and sea pion masses 𝑚𝜋≈140 MeV.
    
    Speaker: Artur Avkhadiev
    
    Avkhadiev_mW_CS_Kernel_2023-01-09.pdf
- 5
  
  Theory Keynote Talk (Special CTP Seminar): The W-boson Mass Puzzle: Examining the Interplay Between Theory and Experiment Kolker Room (26-414)
  
  Kolker Room (26-414)
  
  Massachusetts Institute of Technology, Cambridge, MA, USA
  
  Recently, the Tevatron CDF collaboration reported a highly precise
  measurement of the W-boson mass with an uncertainty of 0.1 per-mille.
  This measurement is in significant tension with Standard Model global
  fits and earlier measurements. The W-boson mass is an input parameter in
  the Standard Model, and its determination relies heavily on theory
  predictions. However, these predictions have uncertainties that are
  orders of magnitude larger, which raises the question in how far theory
  uncertainties enter the measurement and translate into W-mass
  uncertainties. In this talk, we discuss the challenges in accurate
  theory predictions and their impact on the W-boson mass measurements. We
  explore the significance of the tension between the CDF measurement and
  previous results, and discuss potential avenues for improving theory
  predictions in future measurements.
  
  Speaker: Tobias Neumann
  
  HTML slides, PDF will be provided later
- Open Session Talks: Discussion Kolker Room (26-414)
  
  Kolker Room (26-414)
  
  Massachusetts Institute of Technology, Cambridge, MA, USA
  - 6
    
    Discussion
- 3:25 PM
  
  Picture Time! Kolker Room (26-414)
  
  Kolker Room (26-414)
  
  Massachusetts Institute of Technology, Cambridge, MA, USA
- 3:30 PM
  
  Coffee Break Kolker Room (26-414)
  
  Kolker Room (26-414)
  
  Massachusetts Institute of Technology, Cambridge, MA, USA
- 7
  
  Experiment Keynote Talk (Special LNS Seminar): Precision mass measurements with the CMS experiment Kolker Room (26-414)
  
  Kolker Room (26-414)
  
  Massachusetts Institute of Technology, Cambridge, MA, USA
  
  Speaker: Markus Seidel (Riga Technical University (LV))
  
  mass_precision_mseidel.pdf
- Open Session Talks: Discussion Kolker Room (26-414)
  
  Kolker Room (26-414)
  
  Massachusetts Institute of Technology, Cambridge, MA, USA
  - 8
    
    Discussion
- 6:30 PM
  
  Hackathon Dinner Shy Bird
  
  Shy Bird
  
  390 Third St, Cambridge, MA 02142

CMS mW Hackathon Open Session

Kolker Room (26-414)

Massachusetts Institute of Technology, Cambridge, MA, USA

Kolker Room (26-414)

Massachusetts Institute of Technology, Cambridge, MA, USA

Kolker Room (26-414)

Massachusetts Institute of Technology, Cambridge, MA, USA

Kolker Room (26-414)

Massachusetts Institute of Technology, Cambridge, MA, USA

Kolker Room (26-414)

Massachusetts Institute of Technology, Cambridge, MA, USA

Kolker Room (26-414)

Massachusetts Institute of Technology, Cambridge, MA, USA

Kolker Room (26-414)

Massachusetts Institute of Technology, Cambridge, MA, USA

Kolker Room (26-414)

Massachusetts Institute of Technology, Cambridge, MA, USA

Shy Bird