From c8e5d741f8e0d57ef7bd04128dabed58a54e2fc9 Mon Sep 17 00:00:00 2001 From: Saptaparna Date: Thu, 29 Jan 2026 19:23:03 -0600 Subject: [PATCH 01/12] Negative Weights --- .../2026/proposal_NegativeWeightsATLAS.md | 48 +++++++++++++++++ .../2026/proposal_NegativeWeightsMCFM.md | 51 ++++++++++++++++++ images/SMU_peruna.png | Bin 0 -> 14951 bytes 3 files changed, 99 insertions(+) create mode 100644 _gsocproposals/2026/proposal_NegativeWeightsATLAS.md create mode 100644 _gsocproposals/2026/proposal_NegativeWeightsMCFM.md create mode 100644 images/SMU_peruna.png diff --git a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md new file mode 100644 index 000000000..083179e4f --- /dev/null +++ b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md @@ -0,0 +1,48 @@ +- +project: HSF +title: HSF +layout: default +logo: hsf_logo_angled.png +description: | + The HEP Software Foundation encourages cooperation and common + development of software in High Energy Physics. The HSF hosts + a number of software projects where developers are working to + solve current problems in particle physics. +--- + +{% include gsoc_project.ext %} + +- +title: Negative weight mitigation with cell resampling in ATLAS workflows +layout: gsoc_proposal +project: Negative weight, ATLAS event generator workflows +year: 2026 +organization: Southern Methodist University +--- + +## Description + +Negatively weighted events arise as a result of subtraction schemes in next-to-leading (or higher) order event generators. The fraction of negatively weighted events vary as a function of phase space requirements that are imposed in experimental analyses making it imperative to store these events for time consuming downstream processing like detector simulation. They are a severe source of inefficiency in event generator workflows, requiring large datasets to mitigate statistical dilution caused by negatively weighted events. + +A method to redistribute negatively weighted events was proposed in arXiv:2109.07851 and subsequently in arXiv:2303.15246. We plan to use this method for ATLAS event generator workflows. The method has been previously implemented in CMS for small-scale tests. In this project, we will extend the scope of previous explorations in both ATLAS and CMS by identifying computationally intensive workflows and running validation tests that are designed to ensure that distributions of physical observables are not sculpted as a result of the removal of negatively weighted events. + +The eventual goal of the project is to integrate the negative weight mitigation scheme into a realistic ATLAS workflow and setup a validation pipeline that ensures that the method is performing as desired. + +## Task ideas + * Establish familiarity with ATLAS event generator workflows + * Run cell resampling method with fake data (generated with a pseudorandom generator thrown from distributions that are indicative of experimental data) + * Run cell resampling with ATLAS event generator workflows + * Setup a validation suite + * Document results with distributions of variables before and after the method has been applied with a metric that shows computational gains in terms of lower fraction of negatively weighted events + +## Expected results + * Design an event generator workflow and validation suite that tests the cell resampling method for negative weight removal + +## Requirements + * Familiarity with python and C++ + +## Mentors + * [Saptaparna Bhattacharya](mailto:saptaparna.bhattacharya@cern.ch) + +## Links + * [Cell resampling](https://cres.hepforge.org/) diff --git a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md new file mode 100644 index 000000000..6b16585e3 --- /dev/null +++ b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md @@ -0,0 +1,51 @@ +- +project: HSF +title: HSF +layout: default +logo: hsf_logo_angled.png +description: | + The HEP Software Foundation encourages cooperation and common + development of software in High Energy Physics. The HSF hosts + a number of software projects where developers are working to + solve current problems in particle physics. +--- + +{% include gsoc_project.ext %} + +- +title: Negative weight mitigation with cell resampling and tests with MCFM +layout: gsoc_proposal +project: Negative weight, MCFM +year: 2026 +organization: Southern Methodist University +--- + +## Description + +MCFM (Monte Carlo for FeMtobarn processes) is a widely used software package in high-energy physics. It simulates particle collisions, such as those at the Large Hadron Collider (LHC), allowing physicists to compare theoretical predictions with experimental data. It specializes in high-precision predictions Next-to-Next-to-Leading Order and beyond) for a vast array of particle processes. + +When physicists calculate predictions for these collisions using higher-order quantum field theory, the mathematics often requires "subtraction schemes" to handle infinities. A side effect of this is that some simulated events are assigned a "negative weight" (effectively a negative probability). + +While these negative weights make sense mathematically—they cancel out other positive events to give the correct physical result—they are computationally very expensive. In downstream processing (like simulating how a particle detector responds), a negative event and a positive event must both be fully simulated only to cancel each other out later. This "statistical dilution" means we have to generate and store significantly more data just to achieve a standard level of precision. + +A new method called "Cell Resampling" (proposed in arXiv:2109.07851 and arXiv:2303.15246) offers a way to fix this by redistributing these negative weights locally in phase space, effectively removing them without changing the physical prediction. + +We plan to implement this method within MCFM. This project is a collaboration between theorists and experimentalists to: +1. Prove the method works within a major parton-level Monte Carlo generator (MCFM). +2. Stress-test the method to ensure it is robust enough for use in large-scale experimental workflows. + +Once successful, this work will result in a public release of MCFM featuring this efficiency upgrade. + +## Task ideas +* Gain a working understanding of the MCFM codebase and how it handles event generation. +* Implement the cell resampling algorithm on "fake" data (pseudorandom distributions that mimic typical particle physics events) to understand the logic in a controlled environment. +* Integrate the cell resampling method directly into the MCFM source code. +* Run the modified MCFM, compare the results against the standard version to ensure physics accuracy, and document the performance gains. + +## Expected results +Release a modified version of MCFM that successfully incorporates the negative weight mitigation strategy, demonstrating reduced statistical dilution. + +## Requirements +* Experience with Fortran (as MCFM is largely written in Fortran) OR a strong willingness to learn it. +* Basic familiarity with C++ (useful for the resampling algorithm integration). +* Interest in numerical methods and efficiency optimization. diff --git a/images/SMU_peruna.png b/images/SMU_peruna.png new file mode 100644 index 0000000000000000000000000000000000000000..d6fbce3111a66dce82ee280d27c457f382ff3cfb GIT binary patch literal 14951 zcmeHu_aoJR^#8SW5y~nN%G)R-6=jdEaml#u71t&+BguA&Lb+Di+2e+5$2GDmDSKVx znvtyRy}wVN@1OAb_47mVs`DJL^E}UU9_Mk+>z%H)8Uyqy6as-TXsACzKp>R45D3{z zT59kwT>QTc!H)~i)s5UC5YZdwf5^OX3Z4)M4@BdU64E<$Wy0KLY-m@(3Ewm+U`M%e zMaiG%Rka%p&-b)fvk{rAv@=oXf7z3_1<~lvC%k(8fqC#sixhV=UBk#PMB$fHf#mGn z|1xNpK74xjSWf~LP%}izIq)|l1M4b2X{^XQ|7GEW;`s(&X_+J?V z#?_0W(oPbeVSw^Lqlg{**-ucYG!)81HeD*wbI0@h@(TotsEtCI(Ksd`Z{+nmGRXTXZbcw@*HhAQy*fQ-nc*!*$J*H+iBPi%7SuJ}P9 zBNu~M6#Wd6nRj9x3$$~47k`ONE#P#SAdo5*9;)6C9OzTakkTOs0`ibs2!d_X4Nf}3 zXHo`3AZ1kKLa#izezf}*suK~3DX9)D=0|4;2wU`-CdG(d&S8G(Z=`H#;@efS%EO?RZt8pI;(`%ZpPYmpYOLJTlHA 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zv1}Q`b+n%vy{mz^Y`P+J0S9sx_fG-N8?_j4k9Fy;LmZ3upGCbv z*iGIC1D21v8z~Nj@yVV!UkVt6Mh;z(=0J00|FI$z*II>Nvx}5|-viBa7aPDw5)gwt zW#~c!hic=n6%M%x$APapntcK7%i|;%C%wB027(p^C`Sb7VZr0(k3o57um1J5S$}cK~mSRqnY-K{R06k4ls+g8v`6guZM5 literal 0 HcmV?d00001 From 60857148f70459c787579218a25448267ffe4b3e Mon Sep 17 00:00:00 2001 From: Saptaparna Date: Mon, 2 Feb 2026 09:15:33 -0600 Subject: [PATCH 02/12] Update --- _gsocproposals/2026/proposal_NegativeWeightsATLAS.md | 1 + _gsocproposals/2026/proposal_NegativeWeightsMCFM.md | 1 + 2 files changed, 2 insertions(+) diff --git a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md index 083179e4f..2e7b631b9 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md @@ -18,6 +18,7 @@ layout: gsoc_proposal project: Negative weight, ATLAS event generator workflows year: 2026 organization: Southern Methodist University +project_mentors: Saptaparna Bhattacharya (saptaparnab@smu.edu) --- ## Description diff --git a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md index 6b16585e3..86e7ab523 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md @@ -18,6 +18,7 @@ layout: gsoc_proposal project: Negative weight, MCFM year: 2026 organization: Southern Methodist University +project_mentors: Tobias Neumann (tneumann@mail.smu.edu), Saptaparna Bhattacharya (saptaparnab@smu.edu) --- ## Description From 5ebce2ea88ca79bdcdc448da5dbf8b0bfb401917 Mon Sep 17 00:00:00 2001 From: Saptaparna Date: Sun, 8 Feb 2026 23:47:32 -0600 Subject: [PATCH 03/12] Addressing comments --- .../2026/proposal_NegativeWeightsATLAS.md | 8 +++++--- .../2026/proposal_NegativeWeightsMCFM.md | 19 ++++--------------- 2 files changed, 9 insertions(+), 18 deletions(-) diff --git a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md index 2e7b631b9..f047b7622 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md @@ -19,13 +19,14 @@ project: Negative weight, ATLAS event generator workflows year: 2026 organization: Southern Methodist University project_mentors: Saptaparna Bhattacharya (saptaparnab@smu.edu) + --- ## Description Negatively weighted events arise as a result of subtraction schemes in next-to-leading (or higher) order event generators. The fraction of negatively weighted events vary as a function of phase space requirements that are imposed in experimental analyses making it imperative to store these events for time consuming downstream processing like detector simulation. They are a severe source of inefficiency in event generator workflows, requiring large datasets to mitigate statistical dilution caused by negatively weighted events. -A method to redistribute negatively weighted events was proposed in arXiv:2109.07851 and subsequently in arXiv:2303.15246. We plan to use this method for ATLAS event generator workflows. The method has been previously implemented in CMS for small-scale tests. In this project, we will extend the scope of previous explorations in both ATLAS and CMS by identifying computationally intensive workflows and running validation tests that are designed to ensure that distributions of physical observables are not sculpted as a result of the removal of negatively weighted events. +A method to redistribute negatively weighted events was proposed in [arXiv:2109.07851](https://arxiv.org/abs/2109.07851) and subsequently in [arXiv:2303.15246](https://arxiv.org/abs/2303.15246). We plan to use this method for ATLAS event generator workflows. The method has been previously implemented in CMS for small-scale tests. In this project, we will extend the scope of previous explorations in both ATLAS and CMS by identifying computationally intensive workflows and running validation tests that are designed to ensure that distributions of physical observables are not sculpted as a result of the removal of negatively weighted events. The eventual goal of the project is to integrate the negative weight mitigation scheme into a realistic ATLAS workflow and setup a validation pipeline that ensures that the method is performing as desired. @@ -40,10 +41,11 @@ The eventual goal of the project is to integrate the negative weight mitigation * Design an event generator workflow and validation suite that tests the cell resampling method for negative weight removal ## Requirements - * Familiarity with python and C++ + * Familiarity with Python and C++ + * Interest in learning Rust ## Mentors - * [Saptaparna Bhattacharya](mailto:saptaparna.bhattacharya@cern.ch) + * [Saptaparna Bhattacharya](mailto:saptaparna.bhattacharya@cern.ch) and authors of the "cell-resampling" team (Jeppe Andersen(mailto:eppe.andersen@durham.ac.uk) and Andreas Maier(mailto:andreas.martin.maier@desy.de)) ## Links * [Cell resampling](https://cres.hepforge.org/) diff --git a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md index 86e7ab523..0825d66f6 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md @@ -1,23 +1,12 @@ -- -project: HSF -title: HSF -layout: default -logo: hsf_logo_angled.png -description: | - The HEP Software Foundation encourages cooperation and common - development of software in High Energy Physics. The HSF hosts - a number of software projects where developers are working to - solve current problems in particle physics. ---- - -{% include gsoc_project.ext %} - - title: Negative weight mitigation with cell resampling and tests with MCFM layout: gsoc_proposal project: Negative weight, MCFM year: 2026 organization: Southern Methodist University +difficulty: medium +duration: 175 +mentor_avail: June-October project_mentors: Tobias Neumann (tneumann@mail.smu.edu), Saptaparna Bhattacharya (saptaparnab@smu.edu) --- @@ -29,7 +18,7 @@ When physicists calculate predictions for these collisions using higher-order qu While these negative weights make sense mathematically—they cancel out other positive events to give the correct physical result—they are computationally very expensive. In downstream processing (like simulating how a particle detector responds), a negative event and a positive event must both be fully simulated only to cancel each other out later. This "statistical dilution" means we have to generate and store significantly more data just to achieve a standard level of precision. -A new method called "Cell Resampling" (proposed in arXiv:2109.07851 and arXiv:2303.15246) offers a way to fix this by redistributing these negative weights locally in phase space, effectively removing them without changing the physical prediction. +A new method called "Cell Resampling" (proposed in [arXiv:2109.07851](https://arxiv.org/abs/2109.07851) and [arXiv:2303.15246](https://arxiv.org/abs/2303.15246)) offers a way to fix this by redistributing these negative weights locally in phase space, effectively removing them without changing the physical prediction. We plan to implement this method within MCFM. This project is a collaboration between theorists and experimentalists to: 1. Prove the method works within a major parton-level Monte Carlo generator (MCFM). From 565140cc5b83ccfb954838ea526fa382b4b0951f Mon Sep 17 00:00:00 2001 From: Saptaparna Date: Sun, 8 Feb 2026 23:55:01 -0600 Subject: [PATCH 04/12] Addressing comments --- .../2026/proposal_NegativeWeightsATLAS.md | 19 ++++--------------- 1 file changed, 4 insertions(+), 15 deletions(-) diff --git a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md index f047b7622..e56a77474 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md @@ -1,24 +1,13 @@ -- -project: HSF -title: HSF -layout: default -logo: hsf_logo_angled.png -description: | - The HEP Software Foundation encourages cooperation and common - development of software in High Energy Physics. The HSF hosts - a number of software projects where developers are working to - solve current problems in particle physics. ---- - -{% include gsoc_project.ext %} - - title: Negative weight mitigation with cell resampling in ATLAS workflows layout: gsoc_proposal project: Negative weight, ATLAS event generator workflows year: 2026 organization: Southern Methodist University -project_mentors: Saptaparna Bhattacharya (saptaparnab@smu.edu) +difficulty: medium +duration: 175 +mentor_avail: June-October +project_mentors: Saptaparna Bhattacharya (saptaparnab@smu.edu) and authors of the "cell-resampling" team (Jeppe Andersen(mailto:eppe.andersen@durham.ac.uk) and Andreas Maier(mailto:andreas.martin.maier@desy.de)) --- From a75632fcc80f11e8752021f59e1fdf5454df5719 Mon Sep 17 00:00:00 2001 From: Saptaparna Date: Mon, 9 Feb 2026 00:03:32 -0600 Subject: [PATCH 05/12] Addressing comments --- _gsocorgs/2026/smu.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 _gsocorgs/2026/smu.md diff --git a/_gsocorgs/2026/smu.md b/_gsocorgs/2026/smu.md new file mode 100644 index 000000000..9b26fe262 --- /dev/null +++ b/_gsocorgs/2026/smu.md @@ -0,0 +1,11 @@ +--- +title: "SMU" +author: "Saptaparna Bhattacharya" +layout: default +organization: SMU +logo: SMU_peruna.png +description: | + The Department of Physics at [SMU](https://smu.edu) is an internationally recognized hub for high-energy particle physics and cosmology. It is particularly known for its heavy involvement in the ATLAS experiment at the Large Hadron Collider (LHC), where faculty and students played a key role in the discovery of the Higgs boson. +--- + +{% include gsoc_proposal.ext %} From 89af0486bbd949917cc86e24efd71d0c588b013c Mon Sep 17 00:00:00 2001 From: Saptaparna Date: Mon, 9 Feb 2026 08:20:20 -0600 Subject: [PATCH 06/12] Addressing comments --- _gsocproposals/2026/proposal_NegativeWeightsATLAS.md | 4 ++++ _gsocproposals/2026/proposal_NegativeWeightsMCFM.md | 5 +++++ 2 files changed, 9 insertions(+) diff --git a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md index e56a77474..a06f88c48 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md @@ -38,3 +38,7 @@ The eventual goal of the project is to integrate the negative weight mitigation ## Links * [Cell resampling](https://cres.hepforge.org/) + +## AI usage policy + +AI assistance is allowed for this contribution. The applicant takes full responsibility for all code and results, disclosing AI use for non-routine tasks (algorithm design, architecture, complex problem-solving). Routine tasks (grammar, formatting, style) do not require disclosure. diff --git a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md index 0825d66f6..465eacf2c 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md @@ -39,3 +39,8 @@ Release a modified version of MCFM that successfully incorporates the negative w * Experience with Fortran (as MCFM is largely written in Fortran) OR a strong willingness to learn it. * Basic familiarity with C++ (useful for the resampling algorithm integration). * Interest in numerical methods and efficiency optimization. + +## AI usage policy + +AI assistance is allowed for this contribution. The applicant takes full responsibility for all code and results, disclosing AI use for non-routine tasks (algorithm design, architecture, complex problem-solving). Routine tasks (grammar, formatting, style) do not require disclosure. + From 897f869096a0333d3b6a4b61467347aeb1a09708 Mon Sep 17 00:00:00 2001 From: Saptaparna Date: Mon, 9 Feb 2026 23:46:56 -0600 Subject: [PATCH 07/12] Addressing comments --- _gsocprojects/2026/project_MCFM.md | 8 ++++++++ _gsocproposals/2026/proposal_NegativeWeightsATLAS.md | 5 +---- _gsocproposals/2026/proposal_NegativeWeightsMCFM.md | 2 +- 3 files changed, 10 insertions(+), 5 deletions(-) create mode 100644 _gsocprojects/2026/project_MCFM.md diff --git a/_gsocprojects/2026/project_MCFM.md b/_gsocprojects/2026/project_MCFM.md new file mode 100644 index 000000000..d7d1622cc --- /dev/null +++ b/_gsocprojects/2026/project_MCFM.md @@ -0,0 +1,8 @@ +--- +project: MCFM +layout: default +description: | + [MCFM](https://mcfm.fnal.gov/) is a parton-level Monte Carlo program that gives predictions for a wide range of processes at hadron colliders. Almost all processes are available at NLO, but some processes are also available at NNLO or N3LO in QCD. The calculation of some processes can also account for NLO electroweak effects. Transverse momentum and jet veto resummation is available for the production of color singlet final states. +--- + +{% include gsoc_project.ext %} diff --git a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md index a06f88c48..f29c05344 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md @@ -1,7 +1,7 @@ - title: Negative weight mitigation with cell resampling in ATLAS workflows layout: gsoc_proposal -project: Negative weight, ATLAS event generator workflows +project: ATLAS year: 2026 organization: Southern Methodist University difficulty: medium @@ -33,9 +33,6 @@ The eventual goal of the project is to integrate the negative weight mitigation * Familiarity with Python and C++ * Interest in learning Rust -## Mentors - * [Saptaparna Bhattacharya](mailto:saptaparna.bhattacharya@cern.ch) and authors of the "cell-resampling" team (Jeppe Andersen(mailto:eppe.andersen@durham.ac.uk) and Andreas Maier(mailto:andreas.martin.maier@desy.de)) - ## Links * [Cell resampling](https://cres.hepforge.org/) diff --git a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md index 465eacf2c..8c9c03971 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md @@ -1,7 +1,7 @@ - title: Negative weight mitigation with cell resampling and tests with MCFM layout: gsoc_proposal -project: Negative weight, MCFM +project: MCFM year: 2026 organization: Southern Methodist University difficulty: medium From e787539e7270ad06891ca4d776b820433c0270a7 Mon Sep 17 00:00:00 2001 From: Saptaparna Date: Mon, 9 Feb 2026 23:59:45 -0600 Subject: [PATCH 08/12] Addressing comments --- _gsocorgs/2026/ippp.md | 15 ++++++++++++++ .../2026/proposal_NegativeWeightsATLAS.md | 20 ++++++++++++++++--- .../2026/proposal_NegativeWeightsMCFM.md | 14 +++++++++++-- 3 files changed, 44 insertions(+), 5 deletions(-) create mode 100644 _gsocorgs/2026/ippp.md diff --git a/_gsocorgs/2026/ippp.md b/_gsocorgs/2026/ippp.md new file mode 100644 index 000000000..03280ace0 --- /dev/null +++ b/_gsocorgs/2026/ippp.md @@ -0,0 +1,15 @@ +--- +title: "IPPP" +author: "Jack Y. Araz" +layout: default +organization: IPPP +logo: IPPP-logo.png +description: | + [The Institute for Particle Physics Phenomenology](https://www.ippp.dur.ac.uk) at Durham University is UK’s national centre + for particle phenomenology, researching the properties and behaviour of the most fundamental building + blocks of nature. Since it has founded, IPPP has grown to become one of the largest particle phenomenology + groups in the world. Our research sits at the interface between theoretical particle physics and experiments + ranging from particle colliders to gravitational wave detectors. +--- + +{% include gsoc_proposal.ext %} \ No newline at end of file diff --git a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md index f29c05344..c4b7b23fb 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md @@ -3,12 +3,26 @@ title: Negative weight mitigation with cell resampling in ATLAS workflows layout: gsoc_proposal project: ATLAS year: 2026 -organization: Southern Methodist University +organization: SMU difficulty: medium duration: 175 mentor_avail: June-October -project_mentors: Saptaparna Bhattacharya (saptaparnab@smu.edu) and authors of the "cell-resampling" team (Jeppe Andersen(mailto:eppe.andersen@durham.ac.uk) and Andreas Maier(mailto:andreas.martin.maier@desy.de)) - +project_mentors: + - email: saptaparnab@smu.edu + first_name: Saptaparna + last_name: Bhattacharya + organization: SMU + is_preferred_contact: yes + - email: jeppe.andersen@durham.ac.uk + first_name: Jeppe + last_name: Andersen + organization: IPPP + is_preferred_contact: yes + - email: andreas.martin.maier@desy.de + first_name: Andreas + last_name: Maier + organization: DESY + is_preferred_contact: yes --- ## Description diff --git a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md index 8c9c03971..abd5177e7 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md @@ -3,11 +3,21 @@ title: Negative weight mitigation with cell resampling and tests with MCFM layout: gsoc_proposal project: MCFM year: 2026 -organization: Southern Methodist University +organization: SMU difficulty: medium duration: 175 mentor_avail: June-October -project_mentors: Tobias Neumann (tneumann@mail.smu.edu), Saptaparna Bhattacharya (saptaparnab@smu.edu) +project_mentors: + - email: tneumann@mail.smu.edu + first_name: Tobias + last_name: Neumann + organization: SMU + is_preferred_contact: yes + - email: saptaparnab@smu.edu + first_name: Saptaparna + last_name: Bhattacharya + organization: SMU + is_preferred_contact: yes --- ## Description From 603e23863ff3d1bfbf7e53b821f76ff8d62d9957 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Maciej=20Szyma=C5=84ski?= Date: Tue, 10 Feb 2026 14:31:06 +0100 Subject: [PATCH 09/12] Update title for Negative Weights MCFM proposal --- _gsocproposals/2026/proposal_NegativeWeightsMCFM.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md index abd5177e7..b7f5e322d 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsMCFM.md @@ -1,4 +1,4 @@ -- +--- title: Negative weight mitigation with cell resampling and tests with MCFM layout: gsoc_proposal project: MCFM From d3c45afce9024e0042040251b919d6c8ab199ac0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Maciej=20Szyma=C5=84ski?= Date: Tue, 10 Feb 2026 14:31:51 +0100 Subject: [PATCH 10/12] Update title for NegativeWeightsATLAS proposal --- _gsocproposals/2026/proposal_NegativeWeightsATLAS.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md index c4b7b23fb..e04bc2b41 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md @@ -1,4 +1,4 @@ -- +--- title: Negative weight mitigation with cell resampling in ATLAS workflows layout: gsoc_proposal project: ATLAS From 1bd1c5f569223c4da55d0e2f35ffe6fcf37a2310 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Maciej=20Szyma=C5=84ski?= Date: Tue, 10 Feb 2026 14:40:37 +0100 Subject: [PATCH 11/12] Update organization field for project mentors --- _gsocproposals/2026/proposal_NegativeWeightsATLAS.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md index e04bc2b41..dcf2e322e 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md @@ -11,7 +11,9 @@ project_mentors: - email: saptaparnab@smu.edu first_name: Saptaparna last_name: Bhattacharya - organization: SMU + organization: + - SMU + - IPPP is_preferred_contact: yes - email: jeppe.andersen@durham.ac.uk first_name: Jeppe From 92e0a77a7989ee06e06b42816edc0d6e6350c222 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Maciej=20Szyma=C5=84ski?= Date: Tue, 10 Feb 2026 14:45:29 +0100 Subject: [PATCH 12/12] Modify organization and mentor details in proposal Updated organization details and mentor organization. --- _gsocproposals/2026/proposal_NegativeWeightsATLAS.md | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md index dcf2e322e..f12507831 100644 --- a/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md +++ b/_gsocproposals/2026/proposal_NegativeWeightsATLAS.md @@ -3,7 +3,10 @@ title: Negative weight mitigation with cell resampling in ATLAS workflows layout: gsoc_proposal project: ATLAS year: 2026 -organization: SMU +organization: + - SMU + - IPPP + - DESY difficulty: medium duration: 175 mentor_avail: June-October @@ -11,9 +14,7 @@ project_mentors: - email: saptaparnab@smu.edu first_name: Saptaparna last_name: Bhattacharya - organization: - - SMU - - IPPP + organization: SMU is_preferred_contact: yes - email: jeppe.andersen@durham.ac.uk first_name: Jeppe