[PWGLF] Charge-dependent analysis + fixes warnings

[omvazque]

No description provided.

[github-actions]

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

[alibuild]

Error while checking build/O2Physics/code-check for 2a9ec15 at 2026-07-17 17:04:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 54 errors and 1 warnings.'
Found 54 errors and 1 warnings.
++ [[ 54 -gt 0 ]]
++ cat /sw/BUILD/398b2aaf5a07af5fdfb53050e47f0b837cbdb497/O2Physics-code-check/errors.txt
PWGLF/Tasks/Nuspex/piKpRAA.cxx:85:46: error: variable 'dEdxPiTOF' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:86:46: error: variable 'dEdxPiTOF2' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:87:46: error: variable 'dEdxPiV0' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:88:46: error: variable 'dEdxPrV0' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:89:46: error: variable 'dEdxElV0' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:90:46: error: variable 'dEdx' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:91:46: error: variable 'pTVsP' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:92:46: error: variable 'nClVsP' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:93:46: error: variable 'nClVsPElV0' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:94:46: error: variable 'nClVsPPiV0' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:95:46: error: variable 'nClVsPPrV0' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:96:51: error: variable 'nClVsPp' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:97:51: error: variable 'nClVsPpElV0' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:98:51: error: variable 'nClVsPpPiV0' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:99:51: error: variable 'nClVsPpPrV0' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:100:46: error: variable 'etaTest' is non-const and globally accessible, consider making it const [cppcoreguidelines-avoid-non-const-global-variables,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:114:8: error: constructor does not initialize these fields: pdg [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:136:20: error: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:137:65: error: do not implicitly decay an array into a pointer; consider using gsl::array_view or an explicit cast instead [cppcoreguidelines-pro-bounds-array-to-pointer-decay,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:1164:17: error: boolean expression can be simplified by DeMorgan's theorem [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:1296:11: error: boolean expression can be simplified by DeMorgan's theorem [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2013:193: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2027:64: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2028:82: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2043:99: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2047:11: error: boolean expression can be simplified by DeMorgan's theorem [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2054:142: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2058:232: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2061:258: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2084:64: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2085:82: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2099:115: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2103:11: error: boolean expression can be simplified by DeMorgan's theorem [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2110:145: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2114:235: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2117:261: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2140:64: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2141:82: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2155:115: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2159:11: error: boolean expression can be simplified by DeMorgan's theorem [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2166:145: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
PWGLF/Tasks/Nuspex/piKpRAA.cxx:2170:235: error: redundant boolean literal in ternary expression result [readability-simplify-boolean-expr,-warnings-as-errors]
[0 more errors; see full log]

Full log here.

[alibuild]

Auto-approving on behalf of @omvazque.