[PWGLF/NuSpEx] Adding SigEvtLoss process function + minor changes

[mapalhares]

No description provided.

[github-actions]

O2 linter results: ❌ 0 errors, ⚠️ 0 warnings, 🔕 0 disabled

[alibuild]

Error while checking build/O2Physics/code-check for 428ff59 at 2026-09-03 01:54:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 72 errors and 31 warnings.'
Found 72 errors and 31 warnings.
++ [[ 72 -gt 0 ]]
++ cat /sw/BUILD/85b3a7b1e8294f842b519c2a210c5b9420b99bde/O2Physics-code-check/errors.txt
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:49:1: error: included header TPDGCode.h is not used directly [misc-include-cleaner,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:86:22: error: variable 'hEvents' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:87:22: error: variable 'hZvtx' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:88:22: error: variable 'hCentFT0A' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:89:22: error: variable 'hCentFT0C' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:90:22: error: variable 'hCentFT0M' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:91:22: error: variable 'hCentFV0A' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:92:22: error: variable 'hNsigma3HSel' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:93:22: error: variable 'hNsigma3HSelTOF' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:94:22: error: variable 'h2Nsigma3HSelTPCTOF' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:95:22: error: variable 'hdEdx3HSel' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:96:22: error: variable 'hdEdx3HPosTrack' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:97:22: error: variable 'hdEdx3HNegTrack' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:98:22: error: variable 'hdEdxTot' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:99:22: error: variable 'h3HMassPtTOF' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:100:22: error: variable 'h3HSignalPtTOF' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:101:22: error: variable 'hIsMatterGen' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:102:22: error: variable 'hLnnCandLoss' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:103:22: error: variable 'hDecayChannel' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:105:22: error: variable 'h2GlobalTrackMultVsCent' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:107:22: error: variable 'h2FT0CnClusTPCtoTrBfSel' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:108:22: error: variable 'h2FT0CnClusTPCtoPiBfSel' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:109:22: error: variable 'h2FT0Cchi2NClTPCtoTrBfSel' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:110:22: error: variable 'h2FT0Cchi2NClITStoTrBfSel' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:111:22: error: variable 'h2FT0CnTPCNClsCrossedRows3HBfSel' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:112:22: error: variable 'h2FT0CnTPCNClsCrossedRowsPiBfSel' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:114:22: error: variable 'h2FT0CptTrBfSelItsTpc' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:115:22: error: variable 'h2FT0CptTrBfSelItsTpcTof' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:116:22: error: variable 'h2FT0CptPiBfSelItsTpc' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:118:22: error: variable 'hPtGeneratedTrStr' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:119:22: error: variable 'hPtGeneratedPiStr' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:120:22: error: variable 'hPtGeneratedLnnStr' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:121:22: error: variable 'hPtTpcTrStr' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:122:22: error: variable 'hPtItsTpcTrStr' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:123:22: error: variable 'hPtTrkTpcTrStr' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:124:22: error: variable 'hPtTrkItsTpcTrStr' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:125:22: error: variable 'hPtItsTpcTofTrStr' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:126:22: error: variable 'hPtTrkItsTpcTofTrStr' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:129:22: error: variable 'h2FT0CPtGenColRecCandMC' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:130:22: error: variable 'h2FT0CPtGenColRecTrStrMC' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:132:22: error: variable 'h2FT0CPtGenColGenCandMC' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/TableProducer/Nuspex/lnnRecoTask.cxx:133:22: error: variable 'h2FT0CPtGenColGenTrStrMC' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
[0 more errors; see full log]

Full log here.