From 082f0822de2fc9ecb433297f667ca503d8dc2940 Mon Sep 17 00:00:00 2001
From: Andrea Perrotta <perrotta@cern.ch>
Date: Fri, 20 Sep 2024 09:03:44 +0200
Subject: [PATCH] HcalZDCDetId fix for Run3, backport of #45033

---
 DataFormats/HcalDetId/interface/HcalZDCDetId.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/DataFormats/HcalDetId/interface/HcalZDCDetId.h b/DataFormats/HcalDetId/interface/HcalZDCDetId.h
index 290e38e6ffbf6..f1cf4587f7a96 100644
--- a/DataFormats/HcalDetId/interface/HcalZDCDetId.h
+++ b/DataFormats/HcalDetId/interface/HcalZDCDetId.h
@@ -24,7 +24,7 @@
 class HcalZDCDetId : public DetId {
 public:
   static constexpr uint32_t kZDCChannelMask1 = 0xF;
-  static constexpr uint32_t kZDCChannelMask2 = 0x7F;
+  static constexpr uint32_t kZDCChannelMask2 = 0x3F;
   static constexpr uint32_t kZDCSectionMask = 0x3;
   static constexpr uint32_t kZDCSectionOffset = 4;
   static constexpr uint32_t kZDCZsideMask = 0x40;